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Advanced Electrical Test Equipment Manufacturer India | Relay Test Kit, CT PT Analyzer – by KPM Engineering Solutions. Reliable, field-proven solutions. Visit now! Robust Electrical Testing Equipment Built for Reliability Precision Performance Maximum ROI Explore Solutions FOURNISSEUR DE SOLUTIONS UNIQUE POUR TOUTES LES APPLICATIONS DE TESTS ÉLECTRIQUES Cable LA Meter TRF Relay Machine Battery Testing GIS Circuit Breaker Tap Charger Monitor Testing EV Partial discharge CT/PT Earth Testing À PROPOS DE NOUS Videos Pictures Chez KPM, nous sommes impliqués dans la fabrication décentralisée, l'assemblage et le conseil d'équipements de test et de mesure électriques. KPM fournit une gamme d'équipements hitech utilisés pour la plupart des applications de test de système d'alimentation typiques. Nos solutions de test sont spécialement conçues en tenant compte des exigences des compagnies d'électricité de distribution, de transmission et de production. Avec KPM, vous êtes assuré non seulement du meilleur équipement de test, mais vous obtenez également une vue intérieure de l'unité qui vous convient réellement. Comme nous sommes un fournisseur impartial d'équipements de test, nous prenons en considération tous les avantages avant de recommander un produit particulier à nos clients estimés. Depuis 1992, KPM Engineering Solutions est une entreprise leader dans le conseil électrique et a exécuté avec succès des dizaines de projets visant à fournir des solutions d'ingénierie innovantes. À partir de 2018, KPM a subi une restructuration et des acquisitions se diversifiant dans l'industrie des équipements de test et de mesure. Chaque fois que nécessaire, notre division T&M et notre division de conseil se mettent en contact pour fournir des services à valeur ajoutée tels que l'interprétation des résultats et l'analyse des causes profondes des défaillances du DUT (dispositif sous test). Nous nous associons aux leaders mondiaux R & D et maisons de production du monde entier pour apporter les meilleures solutions fiables aux portes de nos clients estimés. Chaque solution fournie par KPM est soutenue par une équipe d'experts en support d'applications et de services. Avant d'atteindre nos clients, chaque solution passe par nos normes de laboratoire précises et nos essais sur le terrain rigoureux dans des conditions de poste de départ sous tension EHV (jusqu'à 765 KV). Nous sommes un groupe de technocrates avec une vaste expérience de vente et d'application dans l'industrie électrique T & M haute tension/basse tension. -5cde-3194-bb3b-136bad5cf58d_ clients au cours des 2,5 dernières décennies. Chez KPM, nous nous engageons à fournir à nos clients un équipement précis pour une bonne application T&M, puis à agir comme premier point de contact pour chaque support lié au produit. LAB TESTED , FIELD PROVEN SOLUTIONS Clients internationaux USA BANGLADESH TANZANIA MAYANMAR CZECH REPUBLIC CHILE NIGERIA NEPAL Kenya Saudi Arabia Indonesia Références clients To play, press and hold the enter key. To stop, release the enter key. Témoignages Commande récemment passée pour l'analyseur KPM CT PT pour tester les CT PT dans les postes de commutation sous tension de 400 KV. Un gouvernement central de premier plan EPC, India Kit de test de relais automatique récemment mis en service, K3063i , la formation en ligne et le support d'application ont été fournis par KPM Team Une entreprise sidérurgique de premier plan. , Nigéria Commandé KPM K3063i, avec support en ligne de KPM Engineering Un EPC leader , Chili Récemment commandé un paquet de KPM Tan delta Kit, CT PT Analyzer, LA Tester, PQ Analyzer, Battery Testing Kit etc._cc781905-5cde-3194-bb3b-136bad5cf58d Une multinationale leader dans la maintenance de centrales électriques. , Inde Commissioned KPM CT PT Analyzer pour tester les CT et PT dans les centrales hydroélectriques Une société leader du gouvernement central Hydro Power Co., India

KPM India |We are electrical test equipment manufacturers, We deal in CT PT Analyzer, Relay Test Kit , Tan delta , Transformer Test Kits , LA Testers etc.|test |https://kpmtek.wixsite.com/website/fr/about-1 Heading 1 Heading 2 Heading 3 Heading 4 I'm a paragraph. Click here to add your own text and edit me. It's easy. I'm a paragraph. Click here to add your own text and edit me. It's easy. Maximum ROI

Advanced EV battery testing solutions by KPM for service centers. Ensure precise diagnostics, battery health analysis, and efficient maintenance Solutions de test du centre de service de batterie EV Test de cellule et égalisation Cliquez maintenant Maintenance haute puissance Cliquez maintenant Test de décharge HT Cliquez maintenant Module/Pack Égalisation Cliquez maintenant Anchor 1 Test de cellule et égalisation KPM BCD B-4X BCD SERIES KPM BCD B4X integrates discharge, charging and activation functions into one unit with features of multi-channel, independent cell, and large current. View More KPM BCD 0530 BCD SERIES KPM BCD 0530 can quickly and accurately maintain the cells with large voltage drops in the lithium battery module. View More KPM BCD 0550 BCD SERIES KPM BCD 0550 Series is the latest cell discharge-charge device developed by KPM , which adopts advanced battery testing technology and combines the charging and discharging characteristics of lead-acid batteries and lithium-ion batteries. View More Anchor 2 Test de cellule et égalisation KPM LI80L Testeur de fuite d'air Testeur de fuite d'air pour batteries Voir plus KPM LI80L Testeur de fuite d'air Testeur de fuite d'air pour batteries Voir plus KPM LI80L Testeur de fuite d'air Testeur de fuite d'air pour batteries Voir plus KPM LI80L Testeur de fuite d'air Testeur de fuite d'air pour batteries Voir plus Anchor 3 Mètres et autres KPM CCDB SERIES CCDB SOLUTION CCDB Series Lithium Battery Equalization Tester is developed to solve cell voltage imbalance quickly. View More CM-0524 CCDB SLOUTIONS CM - 05224 can quickly test cells voltage in the lithium battery module and judge the balance of the entire battery pack. View More KPM CCDB + Series CCDB SLOUTIONS Suitable for daily charge, discharge, and equalization maintenance of lithium-ion battery cells, module cells, and pack cells. View More KPM CCDB 5V 15A CCDB SLOUTIONS CCDB 5V 15A Lithium Battery Equalization Tester can quickly perform charge, discharge, and equalization tests on individual cells in lithium battery packs. View More Anchor 4 AIR LEAKAGE SOLUTIONS KPM-24BV Compteur de tension de cellule Li AL-80L Battery Leakage Tester is the latest high-accuracy nondestructive testing equipment developed by KPM. KPM-24BV Compteur de tension de cellule Li AL-80H is the latest high-accuracy nondestructive testing equipment developed by KPM, with the highest sensitivity and stability in the new energy industry. Foire aux questions (FAQ) FAQ about Battery Testing & EV Systems : 01 How to Test a Li-ion Battery Pack Safely and Efficiently ? Testing a Li-ion battery pack requires a balance of safety, accuracy, and efficiency. Key steps include: Visual Inspection: Check for swelling, leakage, or damaged terminals. Voltage Check: Measure open-circuit voltage to ensure cells are within the safe range. Insulation Resistance Test: Verify electrical isolation between terminals and the battery casing. Capacity & Discharge Testing: Simulate real-world loads to assess actual capacity, energy output, and discharge efficiency. Impedance/IR Testing: Identify aging cells or weak connections. Thermal Monitoring: Monitor temperature rise during charging/discharging to detect potential overheating. Safety tips include using proper PPE, short-circuit protection, and ventilated areas to avoid thermal events. KPM's Battery Pack Tester is designed for safe and efficient testing of EV and industrial Li-ion packs. It offers automated test sequences, multi-channel voltage/current monitoring, and integrated thermal protection. The tester's real-time data logging and analysis software help ensure accurate diagnostics, preventive maintenance, and safer battery operation. 02 What are the Top 5 Mistakes to Avoid While Discharging Lithium-Ion Cells ? Discharging lithium-ion cells must be done with precision to avoid safety risks and performance degradation. Here are the top 5 mistakes to avoid: 1. Over-Discharging Below Safe Voltage Limits: Going below 2.5–3.0V can cause irreversible damage or capacity loss. 2. High Current Discharge Without Monitoring: Excessive current leads to overheating, thermal runaway, or cell swelling. Always follow rated discharge current. 3. Ignoring Cell Balancing: Uneven discharge across cells in a pack can reduce lifespan or cause imbalance-related failures. 4. Lack of Temperature Monitoring: Not monitoring temperature during discharge can hide thermal issues that lead to fires or failure. 5. Discharging Without Load Control or Cut-Off Logic: Manual discharge setups without auto cut-off risk cell damage or safety hazards. KPM’s Battery Tester prevents these issues through programmable discharge profiles, auto cut-off, real-time voltage/current/temperature monitoring, and cell balancing diagnostics. It ensures safe, accurate discharge testing for EVs, storage systems, and R&D applications. 03 Why Cell Balancing is Critical in Battery Pack Design? Cell balancing is essential in lithium-ion battery pack design to ensure uniform voltage levels across all cells, which directly impacts performance, safety, and lifespan. Without balancing, even a single weak or overcharged cell can cause: Reduced usable capacity Premature degradation or failure Overheating or thermal runaway False full/empty readings during charging/discharging There are two types: 1. Passive balancing dissipates extra energy as heat and 2. Active balancing redistributes charge to weaker cells, improving efficiency KPM’s Battery Solution features integrated smart cell balancing technology. It continuously monitors each cell’s voltage and automatically adjusts charge levels to maintain uniformity. Whether in EVs, solar storage, or industrial packs, KPM’s system ensures balanced charging/discharging, enhanced cycle life, and optimal safety. The real-time monitoring interface also provides visual alerts on imbalance conditions—enabling proactive maintenance and higher reliability. 04 How AH Curve Tracers Improve Battery Quality Analysis? Ampere-Hour (AH) Curve Tracers or constant current discharge testers are critical tools for evaluating battery quality. By discharging the battery at a fixed current and recording voltage over time, they generate AH curves that reveal: 1. Actual capacity vs. rated capacity 2. Voltage stability during load 3. Internal resistance and aging behavior 4. Cut-off voltage performance 5. Cell degradation patterns over cycles This data helps manufacturers and maintenance teams identify underperforming cells, confirm batch consistency, and detect early signs of capacity fade—essential for EVs, energy storage, and critical backup systems. KPM’s Constant Current Battery Testing Equipment is designed for precise AH curve analysis. It offers programmable discharge rates, real-time voltage monitoring, and auto cut-off features. With multi-channel support and detailed data logging, it enables accurate grading, performance benchmarking, and lifecycle testing—ensuring battery packs meet safety and performance standards before deployment. 05 What do you mean by Preventing Battery Fires also what are the Role of Air Leakage Testers ? Battery fires often originate from internal short circuits, moisture ingress, or poor sealing during manufacturing. Air leakage testers play a critical role in preventing such incidents by verifying the airtightness of battery cells, modules, and packs. These testers use pressure decay, vacuum decay, or mass flow methods to detect even the smallest leaks. Ensuring proper sealing prevents oxygen or humidity from entering the cell enclosure, which can lead to electrolyte degradation, corrosion, or thermal runaway in lithium-ion batteries. Regular air leakage testing helps: Maintain IP-rated enclosures for harsh environments Detect seal defects before cell assembly Ensure consistency in automated production lines Comply with safety standards like UN38.3 and IEC 62133 KPM offers high-sensitivity air leakage testers tailored for EV and energy storage applications. With fast cycle times, digital pressure control, and data traceability, KPM’s solution enhances quality assurance and plays a vital role in fire prevention and safe battery operation. 06 What is EV Battery Diagnostics ? What are the Tools Every Service Center Must Have? As electric vehicles (EVs) grow rapidly, service centers must be equipped with specialized battery diagnostic tools to ensure safe and effective maintenance. Key tools include: Battery Pack Testers – For measuring voltage, current, capacity, and SOH (State of Health) during charge/discharge cycles. Cell Balancing Analyzers – To detect and correct imbalances between individual cells in the pack. Insulation Resistance Testers – Essential for checking insulation integrity to prevent leakage currents and electrical hazards. Thermal Imaging Devices – For identifying overheating cells or poor thermal management. Communication Interface Tools – To read battery management system (BMS) data via CAN or other protocols. Air Leakage Testers – To ensure sealed packs meet safety standards. KPM provides an integrated suite of EV battery testing equipment, including constant current testers, smart BMS diagnostic tools, cell balancers, and leakage testers. Designed for workshop and field use, KPM’s devices offer fast, accurate, and automated diagnostics, helping service centers improve safety, reduce downtime, and extend battery life. 07 Do you know Charging vs. Discharging Tests: Key Differences Explained, Advantages of each test? Charging and discharging tests are both essential for evaluating battery performance, but they serve different purposes and reveal different insights. Both tests are complementary—charging tests help optimize input energy handling, while discharging tests validate output performance. Together, they provide a comprehensive view of battery health and reliability Key Differences Feature : Charging Test Discharging Test Purpose: Assess charging efficiency & behavior Measure capacity, energy output, Stability Data Collected: Charge time, input current, voltage rise Discharge time, voltage drop, delivered AH Risks : Overcharging, thermal buildup Deep discharge, undervoltage stress Monitoring Focus: Temperature rise, end-of-charge detection Voltage sag, current stability, thermal trend Control : CC/CV (Constant Current/Voltage) Constant Current or Constant Power load Advantages of Charging Test Evaluates charging curve behavior and efficiency Helps in BMS calibration and charger compatibility Detects issues like overvoltage cutoff failure or high IR during charge Monitors thermal response during charging cycles Advantages of Discharging Test Measures real usable capacity of the battery Identifies aging or weak cells through voltage sag Simulates real-world usage conditions Critical for state of health (SOH) estimation and performance grading KPM’s battery testers support both charging and discharging modes with programmable current profiles, real-time monitoring, and data logging, enabling accurate, automated, and safe battery diagnostics across EVs, energy storage, and R&D applications. 08 What is Understanding State of Health (SOH) in Li-ion Batteries? State of Health (SOH) is a key parameter that reflects the overall condition and performance capability of a lithium-ion battery compared to its original, factory-new state. Expressed as a percentage, SOH = 100% means the battery performs at full capacity; lower values indicate degradation. Factors Affecting SOH: Capacity Fade: Reduction in charge-holding ability over cycles. Increased Internal Resistance: Leads to voltage drop and heating. Cycle Life: Number of full charge-discharge cycles completed. Temperature Stress: Accelerates degradation if outside ideal range. Charge/Discharge Rates: High currents can strain cell chemistry. How SoH is Measured: Capacity Test: Compares actual vs. rated capacity (e.g., via constant current discharge). Impedance/Resistance Test: Higher internal resistance suggests aging. Voltage Behavior Analysis: Under load, abnormal voltage drops signal poor SOH. Algorithmic Estimation: Used in BMS for real-time SOH prediction based on usage history. KPM’s battery testing equipment measures SOH using precision discharge testing, impedance analysis, and real-time voltage tracking. Its smart software computes SoH accurately, helping users assess battery viability, schedule replacements, and extend system reliability in EVs and energy storage applications. 09 Do you know Battery Test Protocols According to IEC/UN38.3 Standards ? Battery safety and performance testing follow strict protocols defined by IEC standards (e.g., IEC 62133, IEC 62660) and UN38.3, which governs the safe transport of lithium batteries. These protocols ensure batteries can withstand mechanical, electrical, and environmental stress. Key UN38.3 tests include: Altitude simulation Thermal cycling Vibration and shock resistance External short circuit Overcharge and forced discharge Impact/crush test IEC standards add protocols for electrical performance, insulation resistance, and endurance cycling. Each test is designed to validate battery integrity, prevent fire or explosion risks, and ensure global compliance for transport and use. KPM’s battery testing systems are built to comply with these standards, offering programmable test sequences, automated data logging, and safety cutoffs. This enables manufacturers and labs to efficiently validate battery packs for EVs, consumer electronics, and storage systems before certification and deployment. 10 How to Extend EV Battery Life Through Better Testing? Extending the life of an EV battery begins with smart, proactive testing practices throughout the battery’s lifecycle—from development to daily use. Key strategies include: Accurate SoH & Capacity Testing: Regularly monitor State of Health (SoH) and capacity using controlled charge/discharge cycles to detect early degradation and prevent overuse of weak cells. Cell Balancing Verification: Use testers to identify and correct imbalances, ensuring even load distribution and avoiding stress on individual cells. Thermal Profiling: Monitor temperature behavior under load to detect hotspots or cooling issues that accelerate aging. Internal Resistance Checks: Periodic impedance testing identifies cells with rising resistance—a sign of aging or failure. Simulated Real-World Load Testing: Evaluate performance under actual driving conditions to optimize BMS tuning and charging protocols. KPM’s battery testing solutions support all of the above, offering automated diagnostics, real-time analytics, and precision control. This helps EV manufacturers and service centers maximize battery life, reduce failures, and enhance long-term performance. 11 Do you know the Evolution of Battery Testing Equipment in the EV Era? With the rise of electric vehicles (EVs), battery testing equipment has evolved from basic voltage and capacity checkers to smart, multifunctional diagnostic platforms. Early systems focused on simple charge/discharge cycles, but modern EV batteries demand high-precision testing for complex parameters like State of Health (SoH), internal resistance, cell balancing, and thermal behavior. Today’s equipment supports high-voltage, multi-channel testing, fast data logging, and automated test protocols aligned with IEC and UN38.3 standards. Integration with Battery Management Systems (BMS), cloud connectivity, and AI-driven analytics are now standard, enabling predictive maintenance and lifecycle optimization. KPM’s battery testing solutions reflect this evolution by offering advanced tools for real-time monitoring, constant current testing, leakage detection, and cell balancing verification. Built for R&D, manufacturing, and service centers, KPM's systems ensure safety, accuracy, and performance—essential in the fast-paced EV ecosystem. 12 Why Your Battery Test Bench Might Be Giving False Results? False results from a battery test bench can arise due to calibration errors, inaccurate sensor placement, or improper test conditions. If the voltage or current sensors are not calibrated regularly, readings may drift, leading to incorrect capacity or SoH measurements. Poor contact resistance at terminals or cables can also distort current flow and voltage drop data. Environmental factors like temperature fluctuations or electromagnetic interference can affect sensitive measurements, especially during internal resistance or impedance tests. Additionally, incorrect test profiles—such as setting the wrong cut-off voltage or charge rate—can lead to misleading performance data. Software issues, such as outdated firmware or poor algorithm tuning, may misinterpret real-time data or fail to filter noise properly. KPM’s battery test benches mitigate these issues with auto-calibration, real-time error detection, and intelligent profiling. They ensure accurate, repeatable results that reflect the true performance and safety status of EV and energy storage batteries. 13 What are the Role of Environmental Factors in Battery Pack Testing? Environmental factors play a crucial role in battery pack testing, as they significantly influence battery performance, safety, and lifespan. Temperature, humidity, and altitude conditions can alter a battery’s behavior under both charge and discharge cycles. Temperature affects chemical reactions inside cells. High temperatures accelerate degradation and risk thermal runaway, while low temperatures reduce capacity and increase internal resistance. Humidity can lead to moisture ingress, causing corrosion or insulation breakdown—especially in poorly sealed packs. Altitude (low pressure) impacts thermal dissipation and can increase the risk of electrolyte leakage or expansion in sealed packs. To ensure reliability, batteries are tested in environmental chambers simulating real-world extremes. IEC and UN38.3 standards mandate such conditions for certification. KPM’s battery testing systems integrate seamlessly with environmental chambers, enabling precise control, real-time monitoring, and automated safety checks—ensuring comprehensive evaluation of battery packs under varied environmental stresses. 14 What is Li-ion Cell Grading: How to Do It Right? Li-ion cell grading is the process of evaluating and categorizing cells based on their performance parameters to ensure uniformity in battery pack assembly. Doing it right involves a systematic and precise testing protocol: Key Steps in Proper Cell Grading: Initial Voltage & IR Check: Measure open-circuit voltage and internal resistance to identify defective or aged cells. Capacity Testing (Constant Current Discharge):Discharge cells under a controlled current and record actual capacity (Ah) against rated values. Cycle Performance Evaluation: Charge/discharge cycles help verify stability and consistency across multiple uses. Temperature Monitoring: Track thermal response under load—abnormal heating indicates inefficiency or cell faults. Sorting Criteria: Classify cells based on capacity, IR, voltage behavior, and thermal stability into A, B, C grades. KPM’s cell grading systems offer multi-channel, high-precision testers with automated sorting, real-time data logging, and user-defined grading profiles. This ensures consistent cell performance, longer pack life, and optimal safety for EV and energy storage applications. 15 Difference between Battery Testing for Aerospace and Automotive Applications? Battery testing for aerospace and automotive applications differs significantly due to varying performance, safety, and environmental requirements. Aerospace batteries demand extreme reliability, lightweight design, and operation under harsh conditions like high altitude, vibration, and temperature extremes. Testing includes rigorous altitude simulation, thermal vacuum, and shock/vibration endurance to meet standards like RTCA DO-311 and MIL-STD. In contrast, automotive EV batteries focus on cycle life, thermal management, and high-power performance. Tests involve real-world drive simulation, fast charging analysis, thermal profiling, and compliance with UN38.3, IEC 62660, and ISO 26262. KPM’s testing solutions cater to both sectors with customizable test protocols, environmental chamber integration, and real-time monitoring. For aerospace, KPM offers high-precision, lightweight diagnostics; for automotive, it provides high-throughput, high-current testing systems—ensuring safety, efficiency, and regulatory compliance across industries. 16 End-of-Life Testing for Electric Vehicle Batteries? End-of-life (EOL) testing for electric vehicle (EV) batteries is essential to assess whether a battery can be reused, repurposed, or must be recycled. This testing focuses on determining the State of Health (SoH), remaining capacity, internal resistance, and thermal behavior after prolonged use. Key EOL testing steps include: Capacity Test: Measures actual ampere-hours (Ah) to determine if it meets minimum reuse thresholds (typically ≥70% of original). Impedance Measurement: Identifies internal degradation and cell imbalance. Charge/Discharge Cycle Analysis: Evaluates efficiency and detects abnormal voltage drops or thermal spikes. Thermal Performance Check: Assesses safety risks under load. Leakage and Insulation Tests: Ensures physical and electrical integrity. KPM’s battery EOL testing systems automate these processes with real-time monitoring, trend analysis, and safe discharge protocols. This enables accurate decision-making for second-life applications, such as stationary storage, or safe recycling, aligning with circular economy goals. 17 What do you mean by Understanding the Thermal Runaway Effect? End-of-life (EOL) testing for EV batteries is crucial to determine whether a battery should be reused, repurposed, or recycled. This involves evaluating the battery’s State of Health (SoH), residual capacity, internal resistance, and thermal behavior. Typically, a battery is considered at end-of-life when its usable capacity drops below 70–80% of its original rating. EOL testing includes controlled charge/discharge cycles, impedance analysis, and thermal profiling under simulated real-world loads. It also verifies the integrity of the Battery Management System (BMS) and checks for cell imbalance, swelling, or leakage. This testing helps classify batteries for secondary applications like energy storage or ensures safe recycling of critical materials. KPM’s battery testing systems provide automated, accurate EOL assessment with programmable protocols, multi-parameter monitoring, and safety interlocks, enabling OEMs and recyclers to make informed decisions about battery reuse, life extension, or disposal. 18 Difference between Battery Energy Density and Safety: A Testing Perspective? As energy density increases in lithium-ion batteries to meet the demands of EVs, aerospace, and portable electronics, safety risks also rise. Higher energy density means more power is stored in the same space, which can lead to thermal runaway, fire, or explosions if not properly managed. From a testing perspective, it is critical to balance performance with safety through: Thermal abuse tests to simulate overheating Overcharge/overdischarge tests to detect BMS failure scenarios Short-circuit and impact testing to assess mechanical protection Internal resistance and SoH testing to identify degradation risks early Leakage and enclosure integrity tests to prevent moisture or gas ingress Testing protocols per UN38.3, IEC 62133, and UL 2580 ensure that high-energy cells meet strict safety thresholds. KPM’s battery testing solutions are designed to test both high-capacity and high-safety requirements, providing real-time monitoring, automated safety shutdowns, and environmental stress simulations to ensure safe, high-density battery deployment. 19 What Makes a Good Battery Service Center? A good battery service center combines technical expertise, advanced diagnostic tools, and safety-first practices to ensure efficient and reliable battery maintenance. Key qualities include: Skilled Technicians trained in EV, industrial, and energy storage battery systems. Advanced Testing Equipment for SoH analysis, cell balancing, IR testing, and BMS diagnostics. Safety Protocols including insulation resistance checks, thermal monitoring, and ESD protection. Data-Driven Diagnostics using software tools for real-time monitoring and historical performance tracking. Proper Infrastructure, such as ventilated workspaces, fire suppression systems, and isolation zones for damaged packs. Support for Multiple Battery Chemistries and pack configurations.

Advanced lightning arrester test kits by KPM for precise leakage current measurement, condition monitoring, and surge protection testing. TROUSSE D'ESSAI DE PARE-FOUDRE ( LCM ) Testeur de parafoudre 1 Ph en ligne (avec mesure de tension et de courant) Catalogue Le testeur de parafoudres de KPM (KPM LA-100+) est l'instrument spécial à utiliser pour détecter les propriétés électriques des parafoudres (LA/MOSA). KPM LA-100+ is capable of testing LA en ligne en utilisant la mesure du courant de fuite LA et de la tension de ligne PT directement pour la plupart des résultats fiables CEI . Caractéristiques du produit of Testeur de parafoudre (KPM LA-100+) Écran LCD grand écran, menu utilisateur en anglais, facile à utiliser. Utilisez les techniques d'échantillonnage de précision et d'analyse harmonique de Fourier pour obtenir des données fiables. Mesure le courant résistif 3ème harmonique, Courant résistif total, Courant de fuite total,_cc781905-5cde-3194-bb3b-136bad5cfI58d_Angle V-I58d Batterie rechargeable, horloge calendrier, micro-imprimante intégrée, peut stocker 120 données de mesure de groupe Testeur LA triphasé en ligne (avec capteur E sans fil et mesure du courant) Catalogue KPM's Testeur de parafoudre triphasé(KPM LA-103+) est l'instrument spécial à utiliser pour détecter les propriétés électriques des parafoudres (LA/MOSA). KPM LA-103+ is capable of testing LA en ligne en utilisant six méthodes principales selon CEI - : 1. Grand écran LCD, fonctionnement complet du menu en anglais, facile à utiliser. 2 En utilisant des circuits d'échantillonnage et de traitement de haute précision, des techniques avancées d'analyse harmonique de Fourier pour fiabiliser les données. 3. L'instrument utilise des signaux de tension et de courant directement capturés et entrés par un capteur numérique unique à isolation magnétique à grande vitesse pour assurer la fiabilité et la sécurité des données 4. Cet équipement peut utiliser un champ électrique induit ou une méthode de transmission sans fil au lieu d'un câblage secondaire PT. 5. L'instrument n'a pas besoin de connecter le secondaire PT et peut mesurer directement le courant résistif. 6. Il existe six méthodes de test, offrant de nombreux choix pour la personne sur site. ( PT méthode secondaire, méthode d'induction, méthode de transmission sans fil, méthode de synchronisation à courant unique, méthode de synchronisation secondaire pt) Testeur LA triphasé en ligne (avec capteur E sans fil et mesure du courant) Catalogue KPM's Testeur de parafoudre triphasé(KPM LA-103+) est l'instrument spécial à utiliser pour détecter les propriétés électriques des parafoudres (LA/MOSA). KPM LA-103+ is capable of testing LA en ligne en utilisant six méthodes principales selon CEI - : 1. Grand écran LCD, fonctionnement complet du menu en anglais, facile à utiliser. 2 En utilisant des circuits d'échantillonnage et de traitement de haute précision, des techniques avancées d'analyse harmonique de Fourier pour fiabiliser les données. 3. L'instrument utilise des signaux de tension et de courant directement capturés et entrés par un capteur numérique unique à isolation magnétique à grande vitesse pour assurer la fiabilité et la sécurité des données 4. Cet équipement peut utiliser un champ électrique induit ou une méthode de transmission sans fil au lieu d'un câblage secondaire PT. 5. L'instrument n'a pas besoin de connecter le secondaire PT et peut mesurer directement le courant résistif. 6. Il existe six méthodes de test, offrant de nombreux choix pour la personne sur site. ( PT méthode secondaire, méthode d'induction, méthode de transmission sans fil, méthode de synchronisation à courant unique, méthode de synchronisation secondaire pt) Test de parafoudre théorique Theory - LA Tester Parafoudre – Théorie Un parafoudre est un dispositif utilisé sur les systèmes d'alimentation électrique et les systèmes de télécommunications pour protéger l'isolation. et les conducteurs du système contre les effets néfastes de la foudre. Le parafoudre typique a une borne haute tension et une borne de terre. Lorsqu'une surtension de foudre (ou une surtension de commutation) se déplace le long de la ligne électrique jusqu'au parafoudre, le courant de la surtension est dévié à travers le parafoudre, dans la plupart des cas vers la terre. Si la protection échoue ou est absente, la foudre qui frappe le système électrique introduit des milliers de kilovolts qui peuvent endommager les lignes de transmission et peuvent également causer de graves dommages aux transformateurs et autres appareils électriques ou électroniques. Les pics de tension extrêmes produits par la foudre dans les lignes électriques entrantes peuvent également endommager les appareils électroménagers, c'est pourquoi il est sacrément crucial pour l'intégrité du parafoudre. Actuellement, la surveillance du courant de fuite total (courants capacitifs et résistifs) est utilisée par de nombreux services publics. Les moniteurs de courant de fuite sont utilisés pour mesurer le courant de fuite des parafoudres et, en cas de courant de fuite élevé, les parafoudres sont remplacés. Cependant, on estime que cette méthode n'est pas la méthode infaillible car le courant de fuite total, qui est purement capacitif, ne signifie pas précisément la santé des parafoudres. Il y a eu des cas où les parafoudres ont explosé même si la valeur totale du courant de fuite était inférieure à la limite prescrite par les fabricants. Le courant résistif est de 15 à 30 % du courant total et, comme les courants capacitifs et résistifs sont décalés de 90 degrés, même un changement considérable du courant résistif entraîne une très faible augmentation du courant total. Par conséquent, la surveillance du courant de fuite total peut ne pas vraiment indiquer la dégradation du disque ZnO. La dégradation d'un long disque de ZnO linéaire conduit généralement à des harmoniques dans le courant de fuite lorsque la tension du système de fréquence fondamentale est appliquée. La mesure du courant résistif de troisième harmonique est basée sur le filtrage de la composante de troisième harmonique du courant de fuite total. Un courant de fuite de l'ordre d'environ 500 microampères est généralement considéré comme sûr. La partie résistive du courant de fuite ou la perte de puissance peut être déterminée par plusieurs méthodes indiquées ci-dessous : Utilisation d'un signal de tension comme référence Compenser la composante capacitive en utilisant un signal de tension Compensation capacitive en combinant le courant de fuite des trois phases Analyse des harmoniques du troisième ordre Détermination directe des pertes de puissance Analyse des harmoniques de rang 3 avec compensation des harmoniques de la tension Système de surveillance avancé avec calculs de composants "courant résistif". L'utilisation de méthodes de diagnostic avancées réduit considérablement les risques d'échec et évite ainsi les pertes humaines et financières. Il est donc souhaitable de vérifier l'état des parafoudres à intervalles de temps réguliers, en mesurant la composante résistive du courant de fuite continu en service sans mettre le parafoudre hors tension. Des mesures fiables sont réalisées par les instruments basés sur le principe du « signal de tension » comme référence. La surveillance régulière de LA a permis d'éviter de nombreuses défaillances dans les sous-stations de 66 kV à 765 kV. Les valeurs de ce courant varient normalement de fractions de milliampères à quelques milliampères, et sont caractérisées par des variations de courant résistif dont la valeur est un indicateur de la détérioration du Surge Arrester. La composante résistive de ce courant de fuite peut augmenter en raison de différentes contraintes provoquant le vieillissement et provoquant finalement des défaillances du parafoudre. Foire aux questions (FAQ) FAQ about lightning arrester testing : 01 What is the purpose of online testing for lightning arresters? The purpose of online testing for HV lightning arresters is to evaluate their health and operational condition while they remain energized and connected to the high-voltage system. This non-intrusive testing monitors critical parameters—especially leakage current—to detect early signs of insulation degradation, moisture ingress, or internal damage. By performing these tests without disconnecting the arrester, utilities can ensure continuous protection against transient over voltages, prevent unexpected failures, and schedule maintenance proactively, thereby enhancing system reliability and safety. 02 How does online testing differ from offline testing of lightning arresters? Online testing of lightning arresters is performed while the arrester is energized and connected to the live high-voltage system. It monitors parameters like leakage current and voltage in real time to assess the arrester’s condition without interrupting power supply or removing the arrester from service. Offline testing, on the other hand, requires disconnecting the arrester from the system and applying controlled test voltages or impulses in a laboratory or test environment. This allows detailed diagnostic tests, such as insulation resistance, dielectric withstand, and energy absorption capability, but causes downtime and power disruption. In summary, online testing enables continuous condition monitoring without service interruption, while offline testing offers more comprehensive diagnostics but requires taking the arrester out of operation. 03 What parameters are measured during online testing of lightning arresters? During online testing of lightning arresters, the key parameters measured include: Leakage current: Both resistive and capacitive components are monitored to detect insulation deterioration or moisture ingress. Discharge current: Measures the arrester’s response to transient overvoltages. Voltage across the arrester: To correlate leakage current with operating voltage. Power factor (dissipation factor): Indicates the level of insulation losses and ageing. Harmonic content of leakage current: Helps identify partial discharges or defects. Continuous monitoring of these parameters helps identify early signs of failure and evaluate arrester condition in real time. 04 What types of leakage current patterns indicate a failing arrester? In surge arresters (typically metal oxide varistor or MOV-based), leakage current patterns can offer early warning signs of deterioration or failure. Here are the key types of leakage current patterns that indicate a failing arrester: 1. Increasing Total Leakage Current Over Time What it means: The arrester is gradually losing its insulation resistance. Cause: Ageing of the zinc oxide blocks or moisture ingress. Warning: A consistent upward trend is a red flag — especially under normal system voltage. 2. High Resistive Leakage Current What it means: An increase in resistive (non-linear) current indicates internal degradation. Why it's critical: Unlike capacitive leakage (which is normal), resistive leakage is a sign of arrester deterioration. How it shows up: Measured using third-harmonic analysis or waveform separation techniques. 3. Sudden Jumps or Spikes in Leakage Current What it means: Possible internal flashover, moisture ingress, or external contamination. Typical sign: A sharp increase without a gradual trend. Next step: Immediate inspection or replacement is usually advised. 4. Leakage Current with Strong Daily Variation What it means: Leakage current rises during daytime due to heating and falls at night — abnormal if variation is large. Potential cause: Moisture or contamination interacting with thermal cycles. 5. Phase Shift Changes in Leakage Current What it means: The phase angle between voltage and leakage current shifts — especially the third harmonic. Used in: Online monitoring systems. Why it matters: Indicates the balance between capacitive and resistive components is shifting unfavourably. 6. Leakage Current under Wet Conditions What it means: If leakage current increases dramatically during rain or fog, it may indicate surface tracking or contamination. Action: Cleaning or replacing the arrester may be required. 05 Which standard is most widely accepted worldwide? The IEC 60099-4 standard (from the International Electrotechnical Commission) is the most widely accepted global standard for metal-oxide lightning arresters. It defines performance criteria, testing procedures—including online monitoring methods—and requirements for high-voltage arresters used in power systems. The B2 method for assessing leakage current in metal-oxide surge arresters is detailed in the IEC 60099-4 standard — specifically in IEC 60099-4:2013, titled "Surge arresters — Part 4: Metal-oxide surge arresters without gaps for AC systems — Methods of test". This standard outlines how to measure and analyze leakage current components, including the resistive part used in the B2 method, for condition assessment and online monitoring of high-voltage lightning arresters. 06 Do you know Which parameter are measured in IEC 60099-4 B2 Method ? In the B2 method, leakage current measurement is used to evaluate the condition of a metal-oxide lightning arrester by analyzing its resistive (non-capacitive) leakage current component while the arrester is energized at operating voltage. Here’s how it works: Measurement: The total leakage current flowing through the arrester is measured using sensitive instruments. This current consists of a capacitive component (normal and stable) and a resistive component (indicative of arrester aging or damage). Resistive component isolation: The B2 method focuses on isolating the resistive part of the leakage current, as an increase in resistive current usually signals degradation, moisture ingress, or damage to the arrester’s internal varistors. Analysis: By comparing the measured resistive leakage current to baseline or manufacturer’s reference values, the condition of the arrester can be assessed. A rising resistive leakage current over time indicates deteriorating insulation and the potential for failure. Trend monitoring: Periodic measurements allow trend analysis, helping predict the arrester’s remaining life and plan maintenance before catastrophic failure occurs. This method is widely used because it is sensitive, non-invasive, and can be performed online without disconnecting the arrester. 07 Which compensations are taken care in B2 method typically In the B2 method, leakage current measurement is used to evaluate the condition of a metal-oxide lightning arrester by analyzing its resistive (non-capacitive) leakage current component while the arrester is energized at operating voltage. Here’s how it works: Measurement: The total leakage current flowing through the arrester is measured using sensitive instruments. This current consists of a capacitive component (normal and stable) and a resistive component (indicative of arrester aging or damage). Resistive component isolation: The B2 method focuses on isolating the resistive part of the leakage current, as an increase in resistive current usually signals degradation, moisture ingress, or damage to the arrester’s internal varistors. Analysis: By comparing the measured resistive leakage current to baseline or manufacturer’s reference values, the condition of the arrester can be assessed. A rising resistive leakage current over time indicates deteriorating insulation and the potential for failure. Trend monitoring: Periodic measurements allow trend analysis, helping predict the arrester’s remaining life and plan maintenance before catastrophic failure occurs. This method is widely used because it is sensitive, non-invasive, and can be performed online without disconnecting the arrester.

KPM ENGINEERING SOLUTIONS is an electrical test equipment provider with strong support. Our solutions are Relay Test Kit, CT/PT Analyzer, Oil BDV, Transformer Testing, Circuit Breaker Testing, LA Testing, Ground Testing, Partial Discharge Testing, Thermal Imager Camera, PIK, SIK, AC/DC HIPOT. CONTACTER KPM Bureau de Gurgaon : Numéro de téléphone : +91 124 4001088, Email : sales@kpmtek.com _cc781905-5cde-3194-bb3b- 136bad5cf58d_ (Centre de vente et de service) Bangalore Office : Phone Number : +91 8123950553, Email : blr@kpmtek.com _cc781905-5cde-3194-bb3b -136bad5cf58d_ _cc781905-5cde -3194-bb3b-136bad5cf58d_ (Centre de vente et de service) EU Contact _cc781905-5cde-3194 -bb3b-136bad5cf58d_ : Phone Number :+48 539438443 , Email : sales@kpmtek.com _cc781905-5cde-3194 -bb3b-136bad5cf58d_ _cc781905 -5cde-3194-bb3b-136bad5cf58d_ ( Ventes et assistance technique )

In KPM Engineering Solution Pvt. Ltd our solutions are Thermal Imager camera, fever monitoring solution, Relay Test Kit, CT/PT Analyzer, Oil BDV, Transformer Testing , Circuit Breaker Testing, LA Testing, Ground Testing, Partial Discharge Testing. Visit www.kpmtek.com for details LABO INFRA

KPM India |We are electrical test equipment manufacturers, We deal in CT PT Analyzer, Relay Test Kit , Tan delta , Transformer Test Kits , LA Testers etc.|File Share |https://kpmtek.wixsite.com/website/fr/file-share

KPM India |We are electrical test equipment manufacturers, We deal in CT PT Analyzer, Relay Test Kit , Tan delta , Transformer Test Kits , LA Testers etc.|Voltage Regulator (Column Type) |https://kpmtek.wixsite.com/website/fr/voltageregulator Régulateur de tension (type colonne)

Advanced transformer oil testing by KPM for precise oil analysis, insulation assessment, and efficient transformer maintenance. ÉQUIPEMENT DE LABORATOIRE D'ESSAI D'HUILE TESTEUR DE POINT ECLAIR (KPM OT 01) Voir plus Le testeur de point d'éclair d'huile de transformateur à coupe fermée KPM OT 01 est un testeur de point d'éclair fermé automatique. Il est utilisé pour mesurer le point d'éclair ouvert et fermé des produits pétroliers. Paramètres techniques-: 1. Mesure de température Plage de mesure de température : -59,9 °C~299,9 °C Plage de contrôle de la température : température ambiante ~ 300 °C Répétabilité : 0,025X (x = deux fois la valeur moyenne du test successif) Résolution : 0,1 °C Précision : 0,5 % Capteur de température : résistance platine (PT100) Capteur d'incendie Flash : anneau de détection d'ions 2. Température ambiante : 0 ~ 40 °C 3. Humidité relative : ≤ 85 % HR 4. Alimentation : AC220V ± 20% ; 50Hz ± 10% 5. Consommation électrique : environ 400 W TESTEUR DE POINT ECLAIR (KPM OT 01) Voir plus Le testeur de point d'éclair d'huile de transformateur à coupe fermée KPM OT 01 est un testeur de point d'éclair fermé automatique. Il est utilisé pour mesurer le point d'éclair ouvert et fermé des produits pétroliers. Paramètres techniques-: 1. Mesure de température Plage de mesure de température : -59,9 °C~299,9 °C Plage de contrôle de la température : température ambiante ~ 300 °C Répétabilité : 0,025X (x = deux fois la valeur moyenne du test successif) Résolution : 0,1 °C Précision : 0,5 % Capteur de température : résistance platine (PT100) Capteur d'incendie Flash : anneau de détection d'ions 2. Température ambiante : 0 ~ 40 °C 3. Humidité relative : ≤ 85 % HR 4. Alimentation : AC220V ± 20% ; 50Hz ± 10% 5. Consommation électrique : environ 400 W TESTEUR DE VISCOSITÉ (KPM OT O3) Voir plus La viscosité cinématique est la mesure de la force de frottement interne lorsque le liquide s'écoule sous l'action de la gravité, et sa valeur est le rapport de la viscosité dynamique à la densité à la même température, qui est l'une des propriétés physiques et chimiques importantes de identification du grade et de la qualité de l'huile. Dans l'application pratique, une sélection appropriée de la viscosité de l'huile de lubrification peut assurer le travail normal et fiable de l'équipement mécanique. KPM OT 03 est l'équipement de test spécial conçu et fabriqué sur la base des normes nationales/internationales. KPM OT 03 convient à la détermination de la viscosité cinématique des produits pétroliers liquides. L'instrument a une fonction de minuterie du temps de déplacement de l'échantillon et une fonction de calcul automatique des résultats finaux de la viscosité cinématique. Caractéristiques de l'instrument de test de viscosité cinématique ◆Constante du viscosimètre, valeur de contrôle de la température, température de réglage fin, le nombre de tests et d'autres paramètres peuvent être définis par clavier, l'instrument dispose d'une fonction de mémoire pour enregistrer automatiquement les données définies à la première fois ◆ Adoptez un capteur importé et une toute nouvelle technologie de contrôle de la température à réglage automatique PID numérique, qui a une large plage de contrôle de la température et une précision de contrôle de la température élevée ◆ L'horloge du calendrier ne s'éteint pas et affiche l'heure actuelle automatiquement au démarrage ◆ Fonction alternative de communication réseau, télécommande, tabulation ◆ Bouton sans marque, l'opération est intuitive et simple. ◆ Le nombre de temps d'expérience est de 1 à 6 fois/fois, ce qui est réglable et pratique ◆ L'enregistrement expérimental peut être enregistré pour une visualisation ultérieure. Paramètres techniques du testeur de viscosité cinématique ◆ Trou de bain liquide : 4 trous ◆Plage de contrôle de la température : température ambiante —120℃ ◆ Précision de contrôle de la température : ≤ ± 0,01 ℃ ◆Puissance de chauffage : 1000W ◆Test fois : 1 à 6 fois/fois, réglable HUILE TAN DELTA ( KPM OTD 01 ) Voir plus KPM OTD01 is used for measuring dielectric dissipation_cc781905 -5cde-3194-bb3b-136bad5cf58d_factor and DC resistivity of insulating oil_cc781905 -5cde-3194-bb3b-136bad5cf58d_and other liquides isolants. KPM OTD01 dans un testeur de perte diélectrique et de résistivité à huile isolante auto-nettoyante 1.Oil cup is cleaned automatically and_cc781905-5cde-3194-bb3b- 136bad5cf58d_has electrode étalonnage fonction._cc781905-5cde-3194-bb3b-586_ 2. Internal standard capacitor electrode type_cc781905-5cde-3194-bb3b- 136bad5cf58d_condensateur,avec electrode spacing 2mm. 3.Large-screen LCD,backlight, display is clear._cc781905-5cde-3194-bb3b- 136bad5cf58d_ 4.More accurate. Testing AC power supply_cc781905-5cde-3194- bb3b-136bad5cf58d_adopts AC - DC -_cc781905-5cde-3194 -bb3b-136bad5cf58d_AC conversion method. 5.Equipped with overvoltage, overcurrent and limit_cc781905-5cde-3194- bb3b-136bad5cf58d_ protections. 6.Measured temperature and system clock. _cc781905-5cde-3194- bb3b-136bad5cf58d_ Technical Parameters Alimentation Voltage : AC 220V±10% Puissance Fréquence : 50Hz/60Hz ±1% Measurement Rangecapacitance : 5pF ~ 200pF relative permittivité : 1.000~30.000 diélectrique dissipation factor : 0.00001~100 DC Résistivité : 2.5 MΩm~20 TΩm Mesure Capacité de précision : ± (1 % lecture + 0,5 pF) relative permittivité : ±1 % lecture dielectric dissipation factor : ±(1% reading +0.0001) DC Résistivité : ±10% lecture Résolution Capacité de rapport : 0,01 pF relative permittivité : 0,001 diélectrique dissipation facteur : 0,00001 Température Plage : 0~125℃ Thermométrique Erreur : ±0.5℃ AC testing voltage : 500 ~ 2200V adjustable,_cc781905-5cde- 3194-bb3b-136bad5cf58d_frequency 50 HZ DC testing voltage : 0 ~ 500V adjustable Puissance Dissipation : 100w Limite Dimension : 500mm*360mm*420mm Poids : 22kg TESTEUR D'ACIDITÉ ( KPM OT 05 ) Voir plus L'acidité de l'huile de transformateur est une propriété nocive. Si l'huile devient acide, la teneur en eau de l'huile devient plus soluble dans l'huile. L'acidité de l'huile détériore la propriété d'isolation de l'isolation en papier de l'enroulement. L'acidité accélère le processus d'oxydation de l'huile. L'acide comprend également la rouille du fer en présence d'humidité. L' acidité de l'huile de transformateur est la mesure de ses constituants acides de contaminants. L'acidité de l'huile est exprimée en mg de KOH nécessaire pour neutraliser l'acide présent dans un gramme d'huile. Ceci est également connu sous le nom de numéro de neutralisation. KPM OT 05 est un testeur automatique d'indice d'acide avec les caractéristiques ci-dessous : Utilitaire multifonction - peut tester la valeur cc781905-5cde-3194-bb3b-136bad5cf58d_ acid de l'huile de transformateur, de l'huile de turbine et du mazout. équipé de procédures standard d'acide et d'étalonnage Entièrement automatique Micro-imprimante affichage LCD Haute précision Opération facile Technical Parameter : Item Transformer oil acid value tester _cc781905-5cde-3194 -bb3b-136bad5cf58d_ _cc781905-5cde-bb6-31905-5cde Acidity_cc781905-5cde-3194 -bb3b-136bad5cf58d_of transformer oil Test Range 0.001~1mg KOH/g Erreur ≤±0.001mg KOH/g Répétabilité ≤0.002mg KOH/g Température 10°c~45°c Humidité ≤85 % HR Alimentation Supply AC220V/50HZ Puissance 500W TESTEUR D'ACIDITÉ ( KPM OT 05 ) Voir plus L'acidité de l'huile de transformateur est une propriété nocive. Si l'huile devient acide, la teneur en eau de l'huile devient plus soluble dans l'huile. L'acidité de l'huile détériore la propriété d'isolation de l'isolation en papier de l'enroulement. L'acidité accélère le processus d'oxydation de l'huile. L'acide comprend également la rouille du fer en présence d'humidité. L' acidité de l'huile de transformateur est la mesure de ses constituants acides de contaminants. L'acidité de l'huile est exprimée en mg de KOH nécessaire pour neutraliser l'acide présent dans un gramme d'huile. Ceci est également connu sous le nom de numéro de neutralisation. KPM OT 05 est un testeur automatique d'indice d'acide avec les caractéristiques ci-dessous : Utilitaire multifonction - peut tester la valeur cc781905-5cde-3194-bb3b-136bad5cf58d_ acid de l'huile de transformateur, de l'huile de turbine et du mazout. équipé de procédures standard d'acide et d'étalonnage Entièrement automatique Micro-imprimante affichage LCD Haute précision Opération facile Technical Parameter : Item Transformer oil acid value tester _cc781905-5cde-3194 -bb3b-136bad5cf58d_ _cc781905-5cde-bb6-31905-5cde Acidity_cc781905-5cde-3194 -bb3b-136bad5cf58d_of transformer oil Test Range 0.001~1mg KOH/g Erreur ≤±0.001mg KOH/g Répétabilité ≤0.002mg KOH/g Température 10°c~45°c Humidité ≤85 % HR Alimentation Supply AC220V/50HZ Puissance 500W TESTEUR D'ACIDITÉ ( KPM OT 05 ) Voir plus L'acidité de l'huile de transformateur est une propriété nocive. Si l'huile devient acide, la teneur en eau de l'huile devient plus soluble dans l'huile. L'acidité de l'huile détériore la propriété d'isolation de l'isolation en papier de l'enroulement. L'acidité accélère le processus d'oxydation de l'huile. L'acide comprend également la rouille du fer en présence d'humidité. L' acidité de l'huile de transformateur est la mesure de ses constituants acides de contaminants. L'acidité de l'huile est exprimée en mg de KOH nécessaire pour neutraliser l'acide présent dans un gramme d'huile. Ceci est également connu sous le nom de numéro de neutralisation. KPM OT 05 est un testeur automatique d'indice d'acide avec les caractéristiques ci-dessous : Utilitaire multifonction - peut tester la valeur cc781905-5cde-3194-bb3b-136bad5cf58d_ acid de l'huile de transformateur, de l'huile de turbine et du mazout. équipé de procédures standard d'acide et d'étalonnage Entièrement automatique Micro-imprimante affichage LCD Haute précision Opération facile Technical Parameter : Item Transformer oil acid value tester _cc781905-5cde-3194 -bb3b-136bad5cf58d_ _cc781905-5cde-bb6-31905-5cde Acidity_cc781905-5cde-3194 -bb3b-136bad5cf58d_of transformer oil Test Range 0.001~1mg KOH/g Erreur ≤±0.001mg KOH/g Répétabilité ≤0.002mg KOH/g Température 10°c~45°c Humidité ≤85 % HR Alimentation Supply AC220V/50HZ Puissance 500W TESTEUR DE POINT ECLAIR (KPM OT 01) Voir plus Le testeur de point d'éclair d'huile de transformateur à coupe fermée KPM OT 01 est un testeur de point d'éclair fermé automatique. Il est utilisé pour mesurer le point d'éclair ouvert et fermé des produits pétroliers. Paramètres techniques-: 1. Mesure de température Plage de mesure de température : -59,9 °C~299,9 °C Plage de contrôle de la température : température ambiante ~ 300 °C Répétabilité : 0,025X (x = deux fois la valeur moyenne du test successif) Résolution : 0,1 °C Précision : 0,5 % Capteur de température : résistance platine (PT100) Capteur d'incendie Flash : anneau de détection d'ions 2. Température ambiante : 0 ~ 40 °C 3. Humidité relative : ≤ 85 % HR 4. Alimentation : AC220V ± 20% ; 50Hz ± 10% 5. Consommation électrique : environ 400 W KARL FISCHER (KPM OT 02) Voir plus Titreur Karl Fischer KPM OT 02 is suitable in determining water content in_cc781905-5cde-3194- bb3b-136bad5cf58d_the liquid petroleum products by titration using_cc781905- 5cde-3194-bb3b-136bad5cf58d_Karl Fischer reagent. It adopts a microprocessor for control, so_cc781905-5cde- 3194-bb3b-136bad5cf58d_it has characteristics of rapid determination speed, high precision, LCD display, and automatic print. It_cc781905-5cde-3194- bb3b-136bad5cf58d_also has function of self-diagnostics, menu_cc781905-5cde- 3194-bb3b-136bad5cf58d_selection. It is a multifunctional, convenient, et automatic analysis_cc781905-5cde-3194-bb3b-586_badinstrument. Titreur d'humidité volumétrique Karl Fischer Technical parameters : 1 Method Karl Fischer Coulometric Titrator_cc781905-5cde-3194-bb3b- 136bad5cf58d_Principe 2 Type Portable 3 Mesure Range 0ug-100mg 4 Résolution 0.1ug 5 the Largest Electrolytic Speed 40_cc781905-5cde-3194-bb3b- 136bad5cf58d_ug/s 6 Power Supply Voltage AC220V ±20%(_cc781905-5cde -3194-bb3b-136bad5cf58d_personnalisation) 7 Largest power 30w 8 Travail Température 10 ~ 35℃ 9 Travail Humidité ≤85% 10 Dimensions 320*240*150mm 11 Poids 5kg HUILE TAN DELTA ( KPM OTD 01 ) Voir plus KPM OTD01 is used for measuring dielectric dissipation_cc781905 -5cde-3194-bb3b-136bad5cf58d_factor and DC resistivity of insulating oil_cc781905 -5cde-3194-bb3b-136bad5cf58d_and other liquides isolants. KPM OTD01 dans un testeur de perte diélectrique et de résistivité à huile isolante auto-nettoyante 1.Oil cup is cleaned automatically and_cc781905-5cde-3194-bb3b- 136bad5cf58d_has electrode étalonnage fonction._cc781905-5cde-3194-bb3b-586_ 2. Internal standard capacitor electrode type_cc781905-5cde-3194-bb3b- 136bad5cf58d_condensateur,avec electrode spacing 2mm. 3.Large-screen LCD,backlight, display is clear._cc781905-5cde-3194-bb3b- 136bad5cf58d_ 4.More accurate. Testing AC power supply_cc781905-5cde-3194- bb3b-136bad5cf58d_adopts AC - DC -_cc781905-5cde-3194 -bb3b-136bad5cf58d_AC conversion method. 5.Equipped with overvoltage, overcurrent and limit_cc781905-5cde-3194- bb3b-136bad5cf58d_ protections. 6.Measured temperature and system clock. _cc781905-5cde-3194- bb3b-136bad5cf58d_ Technical Parameters Alimentation Voltage : AC 220V±10% Puissance Fréquence : 50Hz/60Hz ±1% Measurement Rangecapacitance : 5pF ~ 200pF relative permittivité : 1.000~30.000 diélectrique dissipation factor : 0.00001~100 DC Résistivité : 2.5 MΩm~20 TΩm Mesure Capacité de précision : ± (1 % lecture + 0,5 pF) relative permittivité : ±1 % lecture dielectric dissipation factor : ±(1% reading +0.0001) DC Résistivité : ±10% lecture Résolution Capacité de rapport : 0,01 pF relative permittivité : 0,001 diélectrique dissipation facteur : 0,00001 Température Plage : 0~125℃ Thermométrique Erreur : ±0.5℃ AC testing voltage : 500 ~ 2200V adjustable,_cc781905-5cde- 3194-bb3b-136bad5cf58d_frequency 50 HZ DC testing voltage : 0 ~ 500V adjustable Puissance Dissipation : 100w Limite Dimension : 500mm*360mm*420mm Poids : 22kg TESTEUR D'ACIDITÉ ( KPM OT 05 ) Voir plus L'acidité de l'huile de transformateur est une propriété nocive. Si l'huile devient acide, la teneur en eau de l'huile devient plus soluble dans l'huile. L'acidité de l'huile détériore la propriété d'isolation de l'isolation en papier de l'enroulement. L'acidité accélère le processus d'oxydation de l'huile. L'acide comprend également la rouille du fer en présence d'humidité. L' acidité de l'huile de transformateur est la mesure de ses constituants acides de contaminants. L'acidité de l'huile est exprimée en mg de KOH nécessaire pour neutraliser l'acide présent dans un gramme d'huile. Ceci est également connu sous le nom de numéro de neutralisation. KPM OT 05 est un testeur automatique d'indice d'acide avec les caractéristiques ci-dessous : Utilitaire multifonction - peut tester la valeur cc781905-5cde-3194-bb3b-136bad5cf58d_ acid de l'huile de transformateur, de l'huile de turbine et du mazout. équipé de procédures standard d'acide et d'étalonnage Entièrement automatique Micro-imprimante affichage LCD Haute précision Opération facile Technical Parameter : Item Transformer oil acid value tester _cc781905-5cde-3194 -bb3b-136bad5cf58d_ _cc781905-5cde-bb6-31905-5cde Acidity_cc781905-5cde-3194 -bb3b-136bad5cf58d_of transformer oil Test Range 0.001~1mg KOH/g Erreur ≤±0.001mg KOH/g Répétabilité ≤0.002mg KOH/g Température 10°c~45°c Humidité ≤85 % HR Alimentation Supply AC220V/50HZ Puissance 500W TESTEUR D'ACIDITÉ ( KPM OT 05 ) Voir plus L'acidité de l'huile de transformateur est une propriété nocive. Si l'huile devient acide, la teneur en eau de l'huile devient plus soluble dans l'huile. L'acidité de l'huile détériore la propriété d'isolation de l'isolation en papier de l'enroulement. L'acidité accélère le processus d'oxydation de l'huile. L'acide comprend également la rouille du fer en présence d'humidité. L' acidité de l'huile de transformateur est la mesure de ses constituants acides de contaminants. L'acidité de l'huile est exprimée en mg de KOH nécessaire pour neutraliser l'acide présent dans un gramme d'huile. Ceci est également connu sous le nom de numéro de neutralisation. KPM OT 05 est un testeur automatique d'indice d'acide avec les caractéristiques ci-dessous : Utilitaire multifonction - peut tester la valeur cc781905-5cde-3194-bb3b-136bad5cf58d_ acid de l'huile de transformateur, de l'huile de turbine et du mazout. équipé de procédures standard d'acide et d'étalonnage Entièrement automatique Micro-imprimante affichage LCD Haute précision Opération facile Technical Parameter : Item Transformer oil acid value tester _cc781905-5cde-3194 -bb3b-136bad5cf58d_ _cc781905-5cde-bb6-31905-5cde Acidity_cc781905-5cde-3194 -bb3b-136bad5cf58d_of transformer oil Test Range 0.001~1mg KOH/g Erreur ≤±0.001mg KOH/g Répétabilité ≤0.002mg KOH/g Température 10°c~45°c Humidité ≤85 % HR Alimentation Supply AC220V/50HZ Puissance 500W TESTEUR D'ACIDITÉ ( KPM OT 05 ) Voir plus L'acidité de l'huile de transformateur est une propriété nocive. Si l'huile devient acide, la teneur en eau de l'huile devient plus soluble dans l'huile. L'acidité de l'huile détériore la propriété d'isolation de l'isolation en papier de l'enroulement. L'acidité accélère le processus d'oxydation de l'huile. L'acide comprend également la rouille du fer en présence d'humidité. L' acidité de l'huile de transformateur est la mesure de ses constituants acides de contaminants. L'acidité de l'huile est exprimée en mg de KOH nécessaire pour neutraliser l'acide présent dans un gramme d'huile. Ceci est également connu sous le nom de numéro de neutralisation. KPM OT 05 est un testeur automatique d'indice d'acide avec les caractéristiques ci-dessous : Utilitaire multifonction - peut tester la valeur cc781905-5cde-3194-bb3b-136bad5cf58d_ acid de l'huile de transformateur, de l'huile de turbine et du mazout. équipé de procédures standard d'acide et d'étalonnage Entièrement automatique Micro-imprimante affichage LCD Haute précision Opération facile Technical Parameter : Item Transformer oil acid value tester _cc781905-5cde-3194 -bb3b-136bad5cf58d_ _cc781905-5cde-bb6-31905-5cde Acidity_cc781905-5cde-3194 -bb3b-136bad5cf58d_of transformer oil Test Range 0.001~1mg KOH/g Erreur ≤±0.001mg KOH/g Répétabilité ≤0.002mg KOH/g Température 10°c~45°c Humidité ≤85 % HR Alimentation Supply AC220V/50HZ Puissance 500W Kit de test d'huile BDV (OBD 100A +) Voir plus Comme son nom l'indique, le kit de test Oil BDV (KPM-OBD100A+) est utilisé pour mesurer la résistance à la rupture de l'huile isolante. Capable de générer 80/100KV avec une imprimante embarquée. Agitateur motorisé et programmé Poids léger 0.5KV/sec to 5KV/sec variable voltage rise as per ASTM Standards 136bad5cf58d_ modèles) Kit de test d'huile BDV (OBD 100+) Voir plus Comme son nom l'indique, le kit de test Oil BDV (KPM-OBD 100+) est utilisé pour mesurer la résistance à la rupture de l'huile isolante. Capable de générer 80/100KV avec une imprimante embarquée. Agitateur motorisé et programmé Poids léger Augmentation de tension de 2 KV/sec avec plans de test automatiques selon CEI et IS Foire aux questions (FAQ) FAQ about Oil testing : 01 How to Perform a Reliable 10kV Insulation Test? A 10kV insulation resistance test is used to evaluate the dielectric strength of high-voltage equipment like transformers, motors, and cables. To perform it reliably, first de-energize and isolate the equipment, ensuring it's properly grounded. Clean terminals to remove surface contamination. Connect the insulation tester leads: One to the conductor and the other to ground. Select the 10kV test voltage on the insulation resistance tester. Begin the test and monitor resistance for 1 to 10 minutes—longer durations help identify moisture or insulation defects. Readings should be in the GΩ (giga ohm) range for healthy insulation. Apply DAR (Dielectric Absorption Ratio) or PI (Polarization Index) analysis to assess insulation aging. Ensure environmental conditions are dry and free of electrical noise for accuracy. KPM provides high-voltage insulation testers with digital displays, timer functions, and built-in safety features, ensuring accurate, safe, and standards-compliant insulation testing across utility and industrial applications. 02 Differences Between 5kV, 10kV, and 15kV Insulation Testers? The main difference between 5kV, 10kV, and 15kV insulation testers lies in their test voltage output, which determines the type of equipment they are suited for and the depth of insulation assessment they provide. 5kV testers are typically used for low to medium voltage equipment like motors, cables, and switchgear up to 25kV. 10kV testers are suitable for higher-voltage systems such as power transformers, HV motors, and cables rated up to 69kV, providing a deeper insulation profile. 15kV testers are used for critical high-voltage assets above 69kV, enabling detection of insulation weaknesses that lower voltages may miss. Higher voltage testers stress insulation more, revealing latent defects and moisture absorption. However, using too high a voltage on low-rated equipment can cause damage. KPM offers 5kV, 10kV, and 15kV insulation testers with digital readings, polarization index (PI), and DAR calculations, ideal for field diagnostics and predictive maintenance. 03 What is Karl Fischer Titration ? Explain Moisture Testing in Oil. Karl Fischer (KF) titration is a precise chemical method used to measure moisture content (water) in substances, including insulating oils, with accuracy down to parts per million (ppm). It's the preferred method for transformer oil and lubricants because even trace moisture can degrade dielectric strength, cause corrosion, or affect equipment performance. How It Works: KF titration is based on a chemical reaction where iodine reacts with water in the presence of sulfur dioxide and alcohol, using a base (often imidazole or pyridine) as a catalyst: This reaction occurs until all water is consumed. The amount of iodine used is directly proportional to the moisture present. Types of KF Titration: Volumetric KF: For water content above 1%. Common in oil testing. Coulometric KF: For ultra-low moisture (<1%), generating iodine electrochemically. Advantages: Highly accurate (1–10 ppm range). Specific to water (no interference from other volatiles). Widely accepted in ASTM D1533 for transformer oil testing. KPM supplies Karl Fischer titrators for both volumetric and coulometric methods, used in power utilities and oil testing labs to ensure insulation oils remain within safe moisture limits. 04 How to Identify Oil Contamination Using BDV Testers? Breakdown Voltage (BDV) testing is a key method to identify contamination in insulating oils used in transformers, circuit breakers, and other high-voltage equipment. A BDV tester applies a gradually increasing AC voltage to a sample of insulating oil placed between two standard electrodes. Clean, dry oil has high dielectric strength and resists electrical breakdown. However, the presence of moisture, dissolved gases, carbon particles, or sludge lowers the breakdown voltage significantly. Typically, good transformer oil should withstand 30 kV or more in a 2.5 mm electrode gap. A low BDV reading (e.g., below 20 kV) suggests contamination. Multiple test cycles (usually 5–6) help eliminate anomalies and confirm consistency. KPM provides automated and manual BDV testers with features like automatic voltage ramping, stirrers for even testing, digital displays, and built-in standards (IEC 60156, ASTM D1816), ensuring accurate detection of oil contamination and timely maintenance planning. 05 What is Viscosity and Pour Point in Transformer Oils? Viscosity is the measure of a fluid's resistance to flow. In transformer oils, optimal viscosity is crucial for: Heat transfer: Low viscosity allows better circulation and cooling. Lubrication: Protects internal parts from wear. Pump efficiency: Thinner oil reduces mechanical stress on pumps. High viscosity at low temperatures can hinder oil movement, reducing cooling and increasing risk of overheating. Transformer oils typically have a viscosity range of 8–12 cSt at 40°C, as per IEC and ASTM standards. Pour Point: Pour point is the lowest temperature at which oil still flows. It indicates how oil behaves in cold environments. A low pour point ensures the oil remains pumpable and circulates properly during cold starts or winter operation. A good transformer oil has a pour point below -30°C, as per ASTM D97 or ISO 3016. KPM provides viscosity and pour point testing kits and services compliant with ASTM D445 and D97, ensuring transformer oil meets safety and performance standards. 06 What is Flash Point Testing? What are its Safety Standards and Applications? Flash point testing determines the lowest temperature at which a liquid emits enough vapor to ignite in the presence of an ignition source. It is a critical parameter for assessing the fire and explosion risk of flammable and combustible liquids such as fuels, lubricants, and transformer oils. This test ensures the safe handling, storage, and transportation of these substances. Globally recognized standards such as ASTM D93 (Pensky-Martens Closed Cup), ISO 2719, and ASTM D56 (Tag Closed Tester) provide standardized methods to ensure consistency and safety. Applications span industries like petrochemicals, energy, pharmaceuticals, and aviation, where accurate flash point data is essential for risk assessments, regulatory compliance, and material classification. KPM ensures strict adherence to international safety standards by offering flash point testers that comply with ASTM D93, ISO 2719, and related norms. KPM’s equipment features precision temperature control, sealed test chambers, and automation to eliminate user error. These instruments are calibrated and validated regularly to maintain measurement integrity. Additionally, KPM provides comprehensive support, including training and servicing, to ensure customers conduct testing safely and accurately. By aligning with global testing protocols, KPM plays a key role in advancing operational safety and regulatory compliance across 07 What is Oil Tan Delta? Also understanding Dielectric Loss. Tan Delta, also known as the dissipation factor, is a key parameter used to evaluate the dielectric loss in insulating oils. It represents the ratio of the resistive current to the capacitive current within the oil when subjected to an alternating electrical field. It measures the inefficiency or energy loss in the insulation system when subjected to an alternating electric field. A low Tan Delta value indicates good insulation quality with minimal dielectric loss, while a high value suggests aging, moisture contamination, or deterioration of the insulating oil. Tan delta testing is a crucial diagnostic tool for assessing the health of insulating oil. By understanding the relationship between tan delta, dielectric loss, and the condition of the oil, maintenance professionals can take steps to ensure the reliable and safe operation of electrical equipment. KPM offers advanced Tan Delta testing instruments that comply with IEC and ASTM standards. These kits provide accurate, real-time results with user-friendly operation and robust design. KPM also offers expert support, calibration, and on-site testing services to help utilities maintain insulation health effectively. 08 What are the Best Practices in Oil Sampling and Analysis? Accurate oil sampling and analysis are vital for assessing the condition of insulating oils used in transformers and other high-voltage equipment. Key best practices include taking samples from the correct location (ideally turbulent flow areas, upstream of filters, and not from drain plugs), at the right time (when the machine is running and under normal load), and with proper techniques (using clean equipment, avoiding contamination, and labeling samples accurately). Best practices include taking samples from live equipment using clean, dry, and airtight glass or metal containers to avoid contamination. Sampling should be done from designated sampling valves, ideally after allowing sufficient oil flow to flush impurities. Samples must be labeled clearly with details like equipment ID, location, date, and temperature. Proper analysis involves tests for moisture content, dielectric strength, acidity, interfacial tension, Tan Delta, and dissolved gas analysis (DGA), offering insights into oil aging, contamination, and equipment health. KPM provides a full range of oil testing instruments, including BDV testers, moisture analyzers (Karl Fischer), and Tan Delta kits, all adhering to IEC/ASTM standards. KPM also offers oil sampling kits, training, and onsite testing services, ensuring reliable diagnostics and extending asset life. 09 How to Interpret Insulation Resistance Test Results? Insulation resistance (IR) testing assesses the quality of insulation in electrical equipment by measuring its resistance to current flow. IR testing helps detect insulation weaknesses before they lead to equipment failure, short circuits, or electrical shocks. The test measures the resistance between conductors (e.g., wires) or between a conductor and ground, indicating how well the insulation is preventing current leakage. Interpreting these results involves understanding the expected values, identifying trends, and recognizing factors that can affect the readings. A high insulation resistance (in the megaohms or higher) generally indicates good insulation, while low readings suggest potential problems like moisture, contamination, or damage.. It is typically conducted using a megohmmeter at voltages like 500V, 1kV, or 5kV. Higher resistance values (in megaohms or gigaohms) indicate good insulation, while lower values suggest moisture ingress, dirt, or insulation deterioration. Acceptable IR values vary by equipment type, but a general rule is 1 MΩ per kV of operating voltage, with time-based readings (1 min, 10 min) used to calculate the polarization index (PI). A PI > 2 indicates good insulation; < 1.5 may signal problems. KPM offers reliable insulation resistance testers with digital displays, automatic PI/ DAR calculation, and high-voltage test capabilities (up to 20kV). Compliant with IEC and IEEE standards, KPM’s instruments ensure precise diagnosis. KPM also provides training and expert support to help customers accurately interpret IR results for preventive maintenance and asset safety. 10 What is Electrical Oil Testing According to ASTM/IEC Standards? Electrical insulating oils play a critical role in cooling and insulating transformers, circuit breakers, and other high-voltage equipment. Electrical oil testing, particularly for transformer oil, is crucial for assessing its performance and detecting potential issues. Various ASTM and IEC standards govern these tests, ensuring consistent and reliable results. These standards cover a range of properties like dielectric breakdown voltage, acidity, moisture content, and more. Key ASTM and IEC Standards for Electrical Oil Testing: 1. Dielectric Breakdown Voltage: IEC 60156: Specifies the method for determining the dielectric breakdown voltage of insulating liquids at power frequency. This test is vital for assessing the oil's ability to withstand electrical stress. ASTM D877: Another standard for determining dielectric breakdown voltage, using disk electrodes. ASTM D1816: Uses VDE electrodes for the same purpose. 2. Moisture Content: IEC 60814: Specifies the method for determining the water content in insulating liquids. 3. Acidity (Neutralization Value): IEC 62021-1: Provides the standard for determining the acidity of insulating liquids. 4. Dissolved Gas Analysis (DGA): While not explicitly mentioned in the provided context, DGA is a crucial test for identifying potential problems like overheating or arcing within a transformer. 5. Other Important Tests: IEC 60422: Covers various aspects of insulating oil, including appearance, color rating, and sludge content. ASTM D1500: Specifies the method for determining the color of petroleum products. Interfacial Tension (ASTM D971): Indicates the presence of soluble contaminants. Resistivity (IEC 60247): Measures the oil's ability to resist electrical current flow. Dissipation Factor (IEC 60247): Indicates the energy loss in the oil due to dielectric losses. Flash Point (ASTM D92, ASTM D93): Determines the temperature at which the oil will ignite. Pour Point (ASTM D97): Indicates the lowest temperature at which the oil will flow. Viscosity (ASTM D445): Measures the oil's resistance to flow. KPM provides a comprehensive range of oil testing instruments aligned with ASTM and IEC standards. These include BDV testers, Tan Delta analyzers, moisture testers. KPM also offers calibration, on-line testing, and training services, ensuring users maintain transformer health and meet regulatory requirements effectively. 11 How to measure oil density and what are its implications? Oil density is the mass per unit volume (typically expressed in kg/m³ or g/cm³) and is a key parameter in evaluating the quality and type of insulating oils used in transformers and electrical equipment. Measuring oil density helps in determining its composition, potential uses, and potential for refining into various products like gasoline, diesel, or asphalt. Changes in oil density can indicate contamination, degradation, or improper formulation, affecting cooling efficiency, dielectric strength, and compatibility with equipment materials. Accurate density measurement is essential during oil processing, quality checks, and routine maintenance. It is often performed at a standard reference temperature (usually 15°C or 20°C) using digital density meters or hydrometers, in line with ASTM D4052 or ISO 12185 standards. KPM offers precise digital density meters and oil analysis kits compliant with international standards. These tools are designed for ease of use, fast operation, and high accuracy. With additional support like calibration services and technical guidance, KPM ensures reliable oil density measurement, aiding customers in maintaining transformer performance and operational safety. 12 What are the Early Warning Signs from Your Oil Particle Counter? An oil particle counter detects and quantifies solid contaminants in insulating oil, providing early warning signs of equipment wear, insulation breakdown, or external contamination. Key indicators include: Rising Particle Counts: A sudden increase in particles, especially >4µm or >6µm, can signal insulation aging, arcing, or mechanical wear. Shift in Particle Size Distribution: A higher concentration of larger particles may indicate internal component failure. Exceeding ISO 4406 Cleanliness Codes: Values outside acceptable limits suggest a decline in oil cleanliness, potentially leading to reduced dielectric strength and accelerated aging. Regular monitoring allows for trend analysis, helping prevent failures before they occur. KPM provides portable and lab-grade oil particle counters aligned with ISO 4406 and NAS 1638 standards. These instruments offer accurate, real-time data for critical decision-making. Combined with expert support and service, KPM enables power utilities and industries to ensure oil cleanliness and extend equipment lifespan. 13 What is the use of online partial discharge (PD) monitoring of panels using TEV and contact ultrasonic methods? Online partial discharge monitoring of medium-voltage and high-voltage panels using TEV (Transient Earth Voltage) and contact ultrasonic methods is used to detect and localize internal insulation defects and surface discharges without shutting down the equipment. Here's how each method contributes: 1. TEV (Transient Earth Voltage) Method Use: Detects internal PD activity, especially within air-insulated switchgear (AIS) and cable terminations inside metal-clad panels. How it works? When PD occurs inside enclosed metal-clad gear, it emits fast-rising electromagnetic pulses that induce transient voltages on the metal surfaces. TEV sensors pick up these signals from outside the panel. Benefit: Non-invasive, detects internal voids, tracking, and corona effects. 2. Contact Ultrasonic Method Use: Detects surface discharges, such as corona or tracking, which emit high-frequency acoustic signals. How it works? A piezoelectric sensor placed on the panel surface detects ultrasonic noise generated by PD activity, even through the enclosure. Benefit: Helps locate poor insulation, loose connections, or contamination issues causing discharge on the surface. Combined Use – Why It Matters? Using both TEV and ultrasonic methods together enhances diagnostic accuracy: TEV gives insight into internal discharge severity and location. Ultrasonic confirms surface or near-surface PD sources and allows cross-verification. This dual-method approach is vital for: Preventive maintenance, Avoiding insulation failures, Improving switchgear reliability, and Extending equipment life without needing shutdowns.

KPM battery testing utility ensures accurate performance analysis, reliable diagnostics, and efficient battery maintenance for industrial and electrical applications. KITS DE TEST DE BATTERIE ( UTILITAIRE ) Résistance de la batterie et Testeur de conductance Contactez-nous Analyseur d'état de la batterie BA-01 Le BA-01 Battery Condition Anlayzer est un testeur mis à jour qui est un dispositif de gestion de batterie très efficace et économique pour tester la résistance interne (ou la conductance) et la tension de la batterie. Il vous aide à éliminer les batteries faibles pour garantir les performances de vos systèmes de batterie. Il est capable de mesurer avec précision et cohérence la résistance interne (ou la conductance) des batteries au plomb-acide régulé par valve (VRLA), les batteries au plomb-acide ventilé (VLA) et les batteries Ni-cd qui constituent la composition principale des systèmes d'alimentation critiques de secours. Ce testeur de batterie est largement utilisé par les fournisseurs de services, les équipes d'exploitation et de maintenance pour la gestion et la mesure de la batterie afin d'assurer l'intégrité de l'alimentation dans diverses industries. Enregistreur de données de batterie Contactez-nous Enregistreur de données de batterie BDL est un enregistreur de données de batterie mis à jour pour répondre aux normes de mesure IEEE pour la tension de la batterie, la tension de la chaîne, le courant et la température ambiante. Il est personnalisé de 12V à 700V pour différents systèmes de batterie. Et il a une extension facile pour tous les systèmes de batterie. Avec la communication wifi, vous pouvez facilement afficher des données complètes et générer un rapport de test dans le logiciel PC. Pour un test rapide de la résistance/conductance interne de la batterie, veuillez également vous référer à Analyseur d'état de la batterie BA-01 . Banque de charge de batterie Contactez-nous Banque de charge de batterie KPM Nous proposons une série de bancs de charge de batterie personnalisés avec de nombreux modèles différents pour le test de décharge à courant constant et le test de capacité de la batterie. Ils couvrent une large plage de tension allant de 12V à 480V de tensions nominales avec un courant jusqu'à 600A. Ils sont largement appliqués dans diverses industries. Avec son boîtier d'acquisition de données (DAC) de batterie en option, les valeurs de décharge de CHAQUE cellule peuvent être surveillées simultanément dans la banque de charge de batterie et le logiciel PC en utilisant le logiciel de visualisation de données de KPM. Le même DAC in la banque de charge de la batterie peut également fonctionner indépendamment avec "String DAC" pour fabriquer un autre produit, Enregistreur de données de batterie BDL-3926C . Pour un test rapide de l'état de la batterie, veuillez vous référer à Analyseur d'état de la batterie BA-01 qui teste la résistance/conductance interne de la batterie en quelques secondes. Foire aux questions FAQ about all our battery utility : 01 What is the purpose of battery utility testing in backup power systems? Battery utility testing ensures the reliability, health, and performance of backup power systems used in utilities, substations, data centers, and critical infrastructure. Over time, batteries degrade due to factors like temperature, charge-discharge cycles, and age. Testing helps detect early signs of failure such as increased internal resistance, reduced capacity, or imbalance among cells. This enables timely maintenance or replacement, preventing unexpected power loss during outages. Utility testing validates whether batteries meet required discharge durations and ensures compliance with standards like IEEE 450 or IEC 60896. Regular testing minimizes downtime, enhances operational safety, and protects expensive downstream equipment. KPM provides advanced battery analyzers and constant current discharge kits designed for utility-scale battery banks. These instruments measure internal resistance, voltage, and capacity under load conditions. KPM’s systems are aligned with international testing standards and are used by utilities to perform periodic health checks, identify weak cells, and ensure uninterrupted power backup readiness. 02 What safety precautions must be taken during battery testing? Battery testing involves handling high voltages, currents, and hazardous chemicals, so strict safety precautions are essential. Always wear appropriate personal protective equipment (PPE) such as insulated gloves, eye protection, and flame-resistant clothing. Ensure proper ventilation, especially for lead-acid batteries that emit hydrogen gas during charging or discharging. Isolate the battery bank from the load before testing, and use insulated tools to prevent short circuits. Verify polarity before connecting test equipment to avoid damage or sparking. Never allow metal objects near open battery terminals. Maintain safe distances and use warning signs during high-current discharge tests. Monitor temperature rise and terminate testing if overheating or voltage instability is observed. Follow the manufacturer’s guidelines and applicable standards (IEEE, IEC) during every procedure. KPM’s battery analyzers and discharge testers are equipped with multiple safety features such as overcurrent protection, reverse polarity alarms, thermal cutoffs, and auto-shutdown. KPM also provides user training and safety documentation to ensure proper and secure operation. 03 How does internal resistance measurement indicate battery health? Internal resistance (IR) is the opposition a battery offers to current flow within its own structure. As batteries age or degrade, their internal resistance increases due to chemical wear, sulfation (in lead-acid), or electrode deterioration. Here's how it reflects battery health: Low IR = Healthy battery: Indicates good electrolyte condition, intact electrodes, and low energy loss during discharge. High IR = Degraded battery: Results in voltage drops under load, reduced capacity, and heat generation during operation. Rising IR over time signals aging or developing faults, even if voltage appears normal. Sudden spikes in IR may indicate failing cells or poor interconnections. Thus, internal resistance is a quick, non-invasive diagnostic metric used to identify weak or failing batteries before they cause critical power failures. KPM’s battery analyzers measure IR accurately across large battery banks, providing real-time indicators of cell health and enabling predictive maintenance. 04 What are the key parameters measured by a battery analyzer? A battery analyzer is used to assess the condition and performance of individual cells and complete battery banks. The key parameters it typically measures include: Internal Resistance (IR):Indicates the battery’s ability to deliver current. Higher resistance means deterioration or aging. Voltage (V): Measures the open-circuit voltage of each cell or unit to check state-of-charge and overall health. Conductance (optional): Used as an alternative to resistance in some analyzers to determine battery condition. Temperature (°C): Affects performance and safety. Monitoring ensures accurate readings and helps prevent overheating. State of Health (SoH): Some analyzers estimate the health of the battery based on historical and real-time data. Cell Imbalance: Detects inconsistencies among cells in a battery bank, which can lead to system failure. Ripple Voltage (if applicable): Monitors AC noise on DC lines, often in UPS and telecom systems. KPM’s battery analyzers measure all key parameters—internal resistance, voltage, temperature, and cell imbalance—with high accuracy. Features include: High-precision sensors and rugged design for utility environments, Built-in safety features (reverse polarity, overvoltage alerts), PC software for data logging, trending, and report generation. Widely used in substations, power plants, and telecom towers for preventive maintenance and health diagnostics. 05 Can battery conductivity testing detect early-stage cell degradation ? Conductivity is a measure of a battery’s ability to pass electrical current. In healthy batteries, conductivity is high because the internal chemical pathways are clean and efficient. As a cell begins to degrade (due to sulfation, corrosion, electrolyte breakdown, or plate shedding), these pathways become obstructed, causing conductivity to decrease—even before voltage or capacity noticeably drops. Early Detection: Changes in conductivity often occur before performance failures, allowing for early intervention. Identifies Weak Cells: It helps isolate underperforming cells within a battery bank. Prevents Failures: Enables predictive maintenance and avoids costly downtime. Monitors Aging: Tracks gradual degradation over time for lifecycle management. KPM’s advanced battery analyzers can perform conductivity or internal resistance-based diagnostics, depending on battery type. These tools help utility and industrial users identify subtle degradation trends early, plan timely maintenance, and ensure long-term battery reliability. 06 Why is constant current discharge testing crucial in critical power applications? Constant current discharge testing is essential because it directly evaluates a battery’s actual capacity and performance under load, simulating real-world power demands. In critical power applications—such as substations, hospitals, data centers, and telecom systems—batteries must supply reliable power during outages or switching events. If a battery cannot sustain the required current for the expected duration, it risks system failure, data loss, or equipment damage. Key reasons it’s crucial: Confirms True Capacity: Validates if the battery can deliver its rated ampere-hours (Ah) under specified load. Identifies Weak Batteries: Detects hidden degradation not revealed by voltage or internal resistance alone. Reveals Runtime Performance: Simulates backup duration under real conditions. Supports Preventive Maintenance: Enables data-driven decisions for battery replacement and servicing. KPM’s constant current discharge kits are designed for high-reliability environments. They offer programmable loads, auto cut-off, data logging, and safety features, ensuring accurate, safe, and standards-compliant capacity testing for critical backup systems. 07 How is the battery's capacity (Ah) validated through a discharge test? Battery capacity, measured in ampere-hours (Ah), is validated by discharging the battery at a constant current until it reaches its specified cut-off voltage. The total time it takes to reach that voltage determines the actual capacity using the formula: Capacity (Ah)=Discharge Current (A) × Discharge Time (hours) Example: If a battery is discharged at 10 A and it takes 5 hours to reach the end voltage, the delivered capacity is: 10 A × 5 hrs = 50 Ah This result is then compared to the battery’s rated capacity (e.g., 100 Ah). If it delivers significantly less, it indicates degradation or failure. KPM’s constant current discharge kits precisely control and monitor the discharge current and voltage. They record time-stamped data, auto-calculate Ah, and generate test reports. These tools comply with standards like IEEE 450, ensuring reliable capacity validation for utility and industrial batteries. 08 What role does ambient temperature play in discharge test accuracy? Ambient temperature has a significant impact on the accuracy and outcome of battery discharge tests. Battery performance is highly temperature-sensitive, particularly for lead-acid, lithium-ion, and Ni-Cd chemistries. At High Temperatures: Battery capacity appears higher because chemical reactions speed up. Can lead to overestimation of real-world performance. Increases the risk of thermal runaway or cell damage. At Low Temperatures: Capacity drops due to slower electrochemical activity. May result in underestimated performance and early cut-off in tests. Internal resistance rises, leading to voltage drops under load. Deviations from this temperature should be noted and corrected using manufacturer-specified compensation factors or software. KPM’s battery discharge testers and analyzers include temperature monitoring sensors. The system records ambient and cell temperatures during testing and can apply correction factors to ensure accurate capacity evaluation under varying environmental conditions. 09 How do we determine end-voltage for discharge cut-off? The end-voltage, or cut-off voltage, is the minimum voltage at which a battery should be discharged to avoid deep discharge damage and to ensure reliable capacity measurement. It is determined based on the battery type, rated capacity, discharge rate (C-rate), and manufacturer specifications. For example, a 12V lead-acid battery typically has an end-voltage of 10.5V (1.75V per cell) at standard rates. Discharging below this threshold can lead to irreversible sulfation, reduced life, or failure. In lithium-ion batteries, cut-off is often set higher (e.g., 2.5V–3.0V per cell) to protect cell chemistry and safety. The correct end-voltage ensures consistent and safe testing across different test cycles. It must also be adjusted for ambient temperature and load current, as higher loads can cause greater voltage sag. KPM’s discharge kits allow users to program end-voltage settings per battery specs. The system automatically halts testing at the preset voltage to prevent over-discharge and protect battery health. 10 How can test data be used to predict battery end-of-life? Battery test data—such as internal resistance, voltage, capacity, and temperature trends—can be analyzed over time to accurately predict end-of-life (EOL). A consistent increase in internal resistance and decline in capacity (Ah) are key indicators of aging. When a battery can no longer deliver at least 80% of its rated capacity, it is generally considered at the end of its useful life. Regular discharge tests and impedance measurements create a performance history that reveals degradation rates, enabling predictive analytics. By identifying abnormal changes, such as faster resistance rise in one cell compared to others, maintenance teams can isolate failing units early. Trend-based monitoring allows scheduling replacements before failures occur, ensuring reliability in critical applications. KPM’s analyzers and discharge kits offer data logging, graphing, and reporting features that help utilities and industries track battery health over time, enabling data-driven EOL prediction and proactive asset management.

KPM India |We are electrical test equipment manufacturers, We deal in CT PT Analyzer, Relay Test Kit , Tan delta , Transformer Test Kits , LA Testers etc.|High Current Unit |https://kpmtek.wixsite.com/website/fr/highcurrentunit Unité à courant élevé

Advanced cable testing equipment by KPM for precise fault location, insulation testing, and condition monitoring of power cables. SURVEILLANCE DE DP ET DE TERRE EN LIGNE KPM TAN DELTA 40 KPM TD 40 KPM TD 40 capacitance and tan delta tester is designed for condition assessment of high capacitance & high voltage electrical insulation in high voltage apparatus. It is a measurement instrument that is used with an AC power source and a standard capacitor to form a complete measurement setup. KPM TD 40 is a two-piece design. the control module and the test module communicate wirelessly during the test. KPM DC HIPOT KPM DC HIPOT KPM Portable DC Hipot Test Set consists of a control unit & a double rectifier unit. The KPM- DC series of HIPOTs is light weight, portable & easy to use. These units are user friendly & its output is stable at even high voltages DC vs AC High-potential Testing Direct current high-potential testing provides several advantages over alternating current. KPM VLF Series KPM VLF Series KPM offers the most portable and easy to use VLF hipots available in market. A VLF hipotis just an AC output tester but with an output frequency of 0.1 Hz or lower rather than 0.1 Hz. Although the frequency is very low, it is still an alternating current with polarity reverses after every half cycle. At 0.1 Hz output, rather than 50Hz, it takes 500 times less current and power to apply an AC voltage to a capacitive load, like a long cable. KPM AC HIPOT KPM AC HIPTO KPM Portable AC/DC Hipot Test Set consists of a control unit & a double rectifier unit. The KPM-AC/DC series of HIPOTs is light weight , portable & easy to use. These units are user friendly& its output is stable at even high voltages it is the basic test equipment used by the power station, transmission and distribution companies for testing the insulation strength of all kind of electrical products, electrical equipment and insulated materials. KPM VLF Hipot Tester KPM VLF Hipot Tester KPM offers the most portable and easy to use VLF hipots available in market. A VLF hipotis just an AC output tester but with an output frequency of 0.1 Hz or lower rather than 0.1 Hz. Although the frequency is very low, it is still an alternating current with polarity reverses after every half cycle. At 0.1 Hz output, rather than 50Hz, it takes 500 times less current and power to apply an AC voltage to a capacitive load, like a long cable. Foire aux questions (FAQ) FAQ about Cable testing : 01 1. What is VLF testing, and why is it used for cable diagnostics? VLF (Very Low Frequency) testing applies a low-frequency AC voltage—typically 0.01 Hz to 0.1 Hz—to power cables to assess their insulation condition. It’s used because VLF testing can apply a high voltage stress similar to normal operating conditions but with less heating and damage risk than standard power frequency tests. This makes it ideal for diagnosing medium- and high-voltage cables, especially in field conditions, to detect weaknesses like insulation degradation, voids, or defects before failure occurs. 02 2. How does VLF testing differ from conventional AC hipot testing? VLF testing uses a very low frequency (typically 0.01 to 0.1 Hz) AC voltage, whereas conventional AC hipot testing applies standard power frequency (50/60 Hz) voltage. The low frequency in VLF reduces the capacitive charging current in long cables, allowing high test voltages without overheating the cable insulation. This makes VLF safer and more practical for field testing of long medium- and high-voltage cables. In contrast, conventional AC hipot tests can cause excessive heating and damage when used on such cables. 03 3. What types of cable defects can VLF testing detect? VLF testing is effective at identifying a wide range of insulation defects and weaknesses within medium- and high-voltage power cables. It can detect partial discharge (PD) activity, which is a common early indicator of insulation deterioration such as microscopic voids or cracks within the cable’s insulation material. These PD sites generate localized electrical discharges that degrade the insulation over time, potentially leading to catastrophic failure if not addressed. Additionally, VLF testing can reveal water ingress problems, where moisture penetrates the insulation and lowers its dielectric strength, as well as contamination or aging effects such as thermal, mechanical, or chemical degradation of the insulation material. It can also uncover manufacturing defects like thin spots, improper curing, or insulation gaps. While VLF testing is excellent for assessing the overall integrity of the cable insulation and detecting areas of weakness, it may not precisely locate the defects. For detailed localization, it is often combined with other techniques such as partial discharge (PD) measurements or time-domain reflectometry (TDR). 04 4. What is Tan Delta (VLD) testing, and how does it assess cable insulation quality? Tan Delta (also called Very Low Dissipation factor or VLD) testing measures the dielectric losses in cable insulation by applying an AC voltage and analyzing the phase difference between the current and voltage. The "tan delta" represents the ratio of resistive (lossy) current to capacitive (ideal) current. A low tan delta value indicates good insulation with minimal energy loss, while higher values suggest deterioration due to moisture, contamination, or aging. By measuring these losses, Tan Delta testing assesses the overall insulation condition and detects early-stage degradation before catastrophic failure. It is highly sensitive to insulation quality changes and is commonly used for condition assessment and preventive maintenance of medium- and high-voltage cables. 05 5. How do Tan Delta results indicate the health or degradation of a cable? Tan Delta results reflect the insulation’s dielectric losses, which increase as the cable ages or deteriorates. A low tan delta value means the insulation is healthy, with minimal leakage current and good dielectric integrity. Conversely, a rising tan delta value indicates increasing insulation defects such as moisture ingress, contamination, cracks, or thermal aging. Trends in tan delta over time are especially important: a gradual increase suggests progressive degradation, allowing maintenance teams to plan repairs before failure occurs. Sudden spikes may point to acute damage or contamination. Thus, monitoring tan delta values helps assess the insulation’s condition, predict remaining service life, and prioritize maintenance actions. 06 6. What is VLF Partial Discharge (PD) testing, and how does it help's identify insulation defects? VLF Partial Discharge (PD) testing uses very low frequency voltage to stress the cable insulation while detecting and measuring partial discharges—tiny electrical sparks that occur within insulation voids or defects. These discharges are often early signs of insulation failure, caused by imperfections like cracks, voids, or contamination. By capturing PD activity, VLF PD testing helps pinpoint insulation defects before they lead to catastrophic cable failure. It provides valuable insight into the type, location, and severity of defects, enabling targeted maintenance and reducing unplanned outages. This makes it a crucial tool for proactive cable condition assessment. 07 7. Can VLF PD testing detect early-stage insulation failures? Yes, VLF Partial Discharge (PD) testing is specifically designed to detect early-stage insulation failures. Partial discharges are small electrical sparks that occur in microscopic voids, cracks, or impurities within the cable insulation—often long before a complete breakdown happens. By applying very low frequency voltage, VLF PD testing stresses the insulation gently but effectively, allowing detection of these early PD activities. Detecting partial discharges early helps identify weak spots or developing defects in the insulation, enabling maintenance teams to address issues proactively, extend cable life, and avoid costly unplanned failures. 08 8. What are the typical test voltages and frequencies used in VLF cable testing for 11 kV and 33 kV cables? For 11 kV cables, the VLF test voltage typically ranges from 15 kV to 33 kV, depending on the test type—diagnostic tests usually use about 1.5 times the rated voltage (around 16.5 kV), while withstand tests may apply up to 2.5 to 3 times the rated voltage (up to ~33 kV). For 33 kV cables, the test voltage typically ranges from 45 kV to 75 kV, with diagnostic tests at around 1.5 times the rated voltage (approximately 49.5 kV), and withstand tests potentially up to 2.5 times rated voltage (about 82.5 kV), though the upper limit depends on cable specifications and standards. In both cases, the frequency used is very low—typically 0.1 Hz—to reduce capacitive currents and minimize heating during testing, making it safe and effective for long cable lengths. 09 9. How do environmental factors affect VLF, Tan Delta, and PD test results? Environmental conditions like temperature, humidity, and soil moisture can significantly impact VLF, Tan Delta, and Partial Discharge (PD) test results. Temperature: Higher temperatures generally reduce insulation resistance and can increase Tan Delta values and PD activity due to increased molecular activity in the insulation. Low temperatures can raise resistance but might mask some defects. Humidity and Moisture: Moisture ingress lowers insulation resistance and increases dielectric losses, causing higher Tan Delta readings and more PD activity. Wet conditions can lead to more apparent insulation degradation during testing. Soil Conditions: For underground cables, soil resistivity and moisture affect grounding and test current paths, influencing VLF and PD measurements. Dry or rocky soils may lead to higher resistance readings. Surface Contamination: Dirt, oil, or salts on cable surfaces can cause surface discharges, impacting PD and Tan Delta results. Because of these factors, it’s important to consider and document environmental conditions during testing and, where possible, perform tests under similar conditions for consistent trending and accurate diagnostics. 10 10. What are the safety precautions and best practices during VLF and PD cable testing? Ensure Proper Training: Only qualified personnel familiar with high-voltage testing and equipment should conduct tests. Use Appropriate PPE: Wear insulated gloves, safety glasses, and flame-resistant clothing. Clear the Test Area: Establish a safe perimeter with warning signs and barriers to prevent unauthorized access during testing. Verify Equipment Condition: Check all test instruments, leads, and connections for damage before use. De-energize and Ground Cables: Ensure the cable is disconnected from the power system and properly grounded before connecting test equipment. Follow Manufacturer Guidelines: Use the recommended test voltages, durations, and procedures specific to the cable type and equipment. Monitor Test Parameters: Continuously observe voltage, current, and PD activity during the test to detect abnormalities early. Avoid Testing in Hazardous Environments: Do not perform tests during storms, wet conditions, or explosive atmospheres. Record Test Data Accurately: Document all parameters, environmental conditions, and observations for traceability and analysis. Emergency Preparedness: Have clear procedures for immediate shutdown and emergency response in case of equipment failure or personnel hazard. Following these precautions ensures safety and reliable test results while protecting both personnel and equipment.