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.|Non PD Transformer |https://kpmtek.wixsite.com/website/fr/nonpd-transformer Transformateur non PD

Kindly fill this form as per your technical requirements , We have complete range of Battery Testing Solutions for Utility , EV Industry & Portable Li Ion batteries Applications . Li Ion Battery - Charging ,Discharging and Equalisation Lead Acid Battery - Discharging Solutions Battery Monitoring Solutions Used German Machines – Proven Reliability, Delivered by KPM At KPM, we bring these machines directly to international buyers with a unique advantage: We have a permanent electrical consultant stationed in Germany, enabling us to source the best used machines from trusted sellers across Germany and the EU. Our approach ensures: Direct procurement from authentic sources Initial inspection as per international industry standards Live video inspection for transparency and buyer confidence Final inspection at the seller’s site before dispatch to India Maximum reliability and value in every machine delivered Whether you're in metalworking, plastics, power sector testing, or process automation, our team ensures that you receive tried, tested, and trusted machinery—not just equipment, but a solution. Get in touch with KPM to know what’s available in the European market right now. Why buy new when you can buy proven? A used machine, if purchased judiciously, is not just a cost-effective choice—it’s a proven performer. Across industries, German-made machines are globally recognized for their rugged construction, precision engineering, and long-term reliability. Request form KPM Assurance Framework Foire aux questions 01 Metalworking & Fabrication Machinery :- Top German/European Brands: DMG MORI (Germany/Japan) – CNC turning/milling centers . TRUMPF (Germany) – Laser cutting, bending machines . EMAG, INDEX, GILDEMEISTER – Lathes, turn-mill centers . Bystronic (Switzerland) – Sheet metal and laser cutting. Amada (Europe) – Press brakes, punching systems 02 Plastic & Rubber Processing Machines :- Top Brands: ARBURG (Germany) – Injection moulding. ENGEL (Austria) – Injection moulding. KRAUSSMAFFEI (Germany) – Plastic & rubber machines DEMAG Plastics Group – Injection moulding. BOY (Germany) – Compact moulding machines. 03 Printing & Packaging Machinery :- Top Brands: HEIDELBERG (Germany) – Offset printing KBA (Koenig & Bauer) – Sheetfed & web printing BOBST (Switzerland) – Die cutting, folder-gluers Windmöller & Hölscher (W&H) – Flexographic printing MAN Roland – Newspaper and offset printing 04 Pharmaceutical, Chemical & Process Equipment :- Top Brands: Glatt (Germany) – Fluid bed systems, granulators GEA (Germany) – Process engineering, mixers FETTE (Germany) – Tablet presses IMA (Italy) – Packaging & pharma lines Hosokawa Alpine (Germany) – Powder & particle processing 05 Woodworking Machines :- Top Brands: HOMAG Group (Germany) – CNC routers, edgebanders BIESSE (Italy) – CNC machining centers SCM Group (Italy) – Panel saws, joinery machines Altendorf (Germany) – Panel saws 06 Construction & Heavy Machinery :- Top Brands: LIEBHERR (Germany) – Cranes, earthmovers WIRTGEN Group (Germany) – Road construction machines BOMAG (Germany) – Rollers, pavers MAN (Germany) – Trucks, concrete mixers 07 Food & Beverage Machinery:- Top Brands: Krones AG (Germany) – Bottling, filling lines GEA (Germany) – Dairy, juice, beer lines ALFA LAVAL (Sweden) – Heat exchangers, separators Tetra Pak (Sweden) – Packaging and UHT Multivac (Germany) – Vacuum packaging 08 Industrial Automation & Robotics:- Top Brands: KUKA (Germany) – Industrial robots ABB Robotics (Switzerland) – Welding, pick & place FANUC Europe (Japan with EU operations) – CNC/robotics STÄUBLI (Switzerland) – High-speed robotics YASKAWA Europe – Motion control and robotics 09 Generators, Power & Electrical Plants:- Top Brands: Siemens Energy (Germany) – Turbines, generators MAN Energy Solutions – Large engines and gensets MTU (Rolls-Royce Power Systems) – Diesel generators AEG Power Solutions (Germany) – Power electronics HITZINGER (Austria) – Rotary UPS, alternators 10 Key Categories of Used Printing Machines: 1. Offset Printing Machines Used for high-volume, high-quality printing (books, magazines, brochures, packaging).Sheet-fed Offset. Brands: Heidelberg (e.g., SM 74, CD 102 series) KBA (Koenig & Bauer) MAN Roland Features: 2 to 8 color units, high-speed (up to 18,000 sheets/hr) Use: Commercial printing, packaging, brochures Web-fed Offset Used for newspapers and long-run publications Brands: Goss, Manroland Web Systems. 2. Flexographic Printing Machines: Used for packaging materials: labels, bags, pouches, corrugated cartons. Brands: Windmöller & Hölscher (W&H) Bobst Comexi (Spain) Printing Substrates: Plastic film, paper, foil, etc. Feature: Roll-to-roll printing, quick-drying inks 3. Gravure Printing Machines: Used for high-quality, long-run packaging printing (magazines, foils). Brands: Rotomec (Italy) Cerutti (Italy) KBA (Germany) 4. Label Printing Machines Ideal for self-adhesive labels, shrink sleeves, and narrow web printing. Brands: Gallus (Switzerland) Mark Andy Nilpeter OMET (Italy) Technologies: Flexo, UV flexo, digital hybrid 5. Digital Printing Machines: For short-run, fast-turnaround jobs (variable data, photos, small runs). Brand: HP Indigo Digital Printing Machines Konica Minolta Xerox Canon Applications: Book-on-demand, labels, business cards 6. Screen Printing Machines Used for textiles, labels, circuit boards, and special surfaces. Brands: Sakurai ATMA Thierry (Germany) 7. Other Auxiliary Machines Cutting Machines: Polar (Germany), Wohlenberg Cutting Machines: Polar (Germany), Wohlenberg Die-Cutting / Folder-Gluers: Bobst, Heidelberg UV Coaters, Embossers

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.|PD DEMO |https://kpmtek.wixsite.com/website/fr/pd-demo Live PD Dashboard

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.|Intermediate Transformer |https://kpmtek.wixsite.com/website/fr/intermediate-transformer Transformateur intermédiaire

KPM Solutions supplies precision ultra high voltage test equipment including Relay Test Kits, CT/PT Analyzers, TTR, Winding Resistance & PD Testers. Know more ÉQUIPEMENT D'ESSAI DU SYSTÈME ÉLECTRIQUE KPM VIT-100 KPM Vacuum Interrupter Tester KPM ICAL Pro KPM Instrument Calibrator KPM MT 3000 D+ Three phase Reference Standard Energy Meter specially used for energy meter on-site test KPM PSR12 KPM’s Power Signal Recorder 12 KPM TD12 A+ Automatic 12KV Capacitance & Dissipation Factor Test Set KPM TWRT YY 3 Phase Winding Resistance Tester with automatic change of connections Energy Meter Test Benchs 3 phase energy meter test bench for testing energy meters of 0.5 to 0.02 accuracy levels. KPM-SG_70kV, 70mA Cable Testing Surge Generator / Thumper KPM LBVV 240V 110A Battery Discharge Kit (Constant Current , Constant Power) KPM LB4815+ Battery Load Bank , Constant Current, Constant Power , Constant Resistance Mode KPM AL- 80H Battery Pack Air Leak Tester KPM AL- 80L KPM Battery Pack Air Leak Tester KPM CCDB + Series KPM Li Ion Cell Charge Discharge & Balancer KPM CCDB SERIES KPM Li Ion Cell Charge Discharge & Balancer KPM PDH SERIES KPM Pack Discharging (800V / 1000V) KPM PCD Series KPM li Ion Battery Pack Charge Discharge Test kit PCDH Series KPM li Ion Battery Pack Charge Discharge Test kit ( 800V / 1000V ) KPM MCD 2550 KPM charging , discharging & cyclic charging - discharging of Li Ion modules , Constant Current Discharge KPM CCDB 5V 15A KPM Li-ion Cell Charge Discharge Balancing kit, Constant Current Discharge (5V, 15 A) KPM BCD 0550 KPM Li-ion Battery Charging Discharging kit , Constant Current Discharge (5V, 50 A), Used for high current applications like forklifts, cranes etc. KPM BCD 0530 KPM Li-ion Battery Charging Discharging kit (5V, 30A), Constant Current Discharge , Used for high current applications like forklifts, cranes etc. KPM BCD B-4X KPM Li-ion Battery Charging Discharging kit with 4 independent channels (100A), Constant Current Discharge , Used for high current applications like forklifts, cranes etc. KPM KS30 KPM SF6 Gas Analyzer KPM VLF Series KPM VLF series with Tan Delta & PD Measurement Facility KPM BA-02 Battery Analyzer for testing battery internal resistance, conductance and voltage. Auto increase in the serial number of results using touch and test function, this also reduces testing time KPM Battery Data Logger To check Battery voltage, current and temperature. These sensors are integrated with battery discharge units KPM LA 103 Pro LA Tester measures and displays the values of Total Leakage Current and Third Harmonic Resistive Leakage Current directly with ambient temperature and line harmonic compensation KPM ER1 KPM ER1C is the Three phase Reference Standard Energy Meter specially used to calibrate single phase energy meter on-site . KPM AC HIPOT KPM Cable testing KPM VLF Hipot Tester KPM VLF HIGH VOLTAGE TESTER Hipot Tester KPM DC HIPOT KPM DC Hipot Test Set KPM TD 40 KPM 40kV Tan Delta measurement unit used for cable testing KPM Penta Pd pro Hand held Partial Discharge Tester with multichannel PD detection functions which can be integrated with multiple sensors like UHF , TEV, HFCT, AE , Contact Acoustic etc. KPM CEST 1800 KPM’s Clamp Earth & Spike Tester KPM CRT 6002G Contact Resistance Tester with single-end and double-end grounding test technology, It is available in 200A & 600A KPM Onload Tap Changer Analyzer Onload Tap Changer Analyzer is testing key parameters of an OLTC such as ,Transient time, Transition waveform, Transition resistance, Synchronization status of three phase. td12 Automatic 12KV Capacitance & Dissipation Factor Test Set with 4 Nos channels for Bushing testing in one test , Built In 10kV - 5mA Diagnostic Insulation Tester KPM APIK Automatic Primary Injection Kit is used for high voltage switch testing, protection system testing and current transformer testing in power system KPM CTA C+ CT Analyzer ( for factory & field applications ) KPM CT/PT Tester pro An automatic device used for testing of instrument transformers (CTs & PTs) by injection of secondary voltage. This is capable of ratio error , phase error , winding resistance, knee point upto 2kV etc. K3063i 6I & 4U - Automatic Relay Test Kit RTK(KPM KFA 300) The Lightest Relay Test Kit with 3 Current Sources & 4 voltage sources . Builtin software with AC Test , DC Test , Frequency Test , Distance Test , Harmonic Test Modules RTK(K316i) Automatic Relay Test Kit ( 6I,4U) KPM-DPM-01 KPM Dew Point Meter K68i Relay test kit 3I & 4U - Automatic Relay Test Kit RTK KPM KF 86P Automatic Relay Test Kit with 6 current and 6 voltages , with advanced software with RIO / XRIO Import function KPM CT/PT analyzer It tests all type of CT/PT as per IEC standards (deal tool for CT/PT Manufacturers & Utility Customers) KPM CT:PT Tester KPM CT PT Testing , Primary Current Method CT PT PRO KPM CT PT Tester , Voltage Ratio Method KPM CT/PT HVCTR High Voltage Current Transformer Ratio Tester measures Key CT parameters of upto 33KV system KPM CT/PT PIK For testing Current Transformer , Circuit Breakers etc. by injecting current in Primary side of CT. Moduler design for transporting easily KPM TD12 KPM 12kV Tan delta Tester / Dissipation Tester KPM TTR3 On-site measurement of DC resistance of transformer or motors (High Current Source of 20 A) KPM SFRA 01 Sweep Frequency Response Analysis Test Set (SFRA) for checking the core and winding integrity of a power transformer KPM TWRT Series On-site measurement of DC resistance of transformer (High Current Source of 20 A) KPM 5KP 5 KV Diagnostic Insulation Tester KPM 5KP+ IR Tester ( 5KV, 10KV, 15KV, 20KV) TPL-Trans Power Loss Tester KPM Transformer Power Loss Analyzer OLTC Analyzer KPM Online Tap Changer Tester KPM CB Analyzer KPM Circuit Breaker Analyzer KPM CBA 01 KPM Circuit Breaker Tester KPM CRT Contact Resistance Tester CBT-01 KPM Circuit Breaker Timer VILA KPM Vacuum Interrupter Life Analyzer KPM Oil BDV 100+ KPM Oil Breakdown Voltage Test Kit KPM Oil BDV 100 A+ KPM Oil Breakdown Voltage Test Kit with variable rate of rise voltage KPM OT-01 CC KPM Flash Point Tester Close Cup KPM OT-01 OC KPM Flash Point Tester Open cup KPM OT 02 KPM Karl Fischer Tester , Moisture in oil tester KPM OT O3 KPM Viscosity Tester KPM OT-05 KPM Oil Acid Value Tester KPM OT01 KPM Oil Tan Delta Furan Tester KPM FT-01 KPM HPLC , Furan Tester KPM IPT 01 KPM Imputiry Particle Tester KPM PCM 01 KPM Petroleum Colorimeter KPM ODT 01 KPM Oil Density Tester KPM Interfacial Tension Meter KPM Interfacial Tension Meter KPM-OPPT-01 KPM Oil Pour Point Tester KPM PDTI Monitor KPM Online Partial Discharge Monitor with Temperature & Sht. Ckt Current for HV Cable terminations KPM PDM-01 KPM Partial Discharge Monitor KPM Duo PD KPM online Partial Discharge Tester with acoustic and TEV sensors KPM PD Pulse-8 KPM Online PD Tester for PD Monitoring of switchgears and Ring Main Units KPM PDA-01 KPM Partial Discharge Analyzer , electrical method KPM Penta PD KPM Hand Held partial discharge Tester with TEV , HFCT, AE , Contact Acoustic, UHF sensors KPM CORONA POINTER KPM PD Pointer for laboratory corona finding KPM PQA+ KPM Power Quality Analyzer and recorder KPM - PQ Analyzer Light KPM Power Quality Analyzer and recorder KPM LA 100 + , LA TESTER KPM LA Tester / Surge arrester Tester / MOA Tester / 3rd harmonic leakage current tester kpm la 103+ KPM LA Tester / Surge arrester Tester / MOA Tester / 3rd harmonic leakage current tester KPM MT 3000 D 3-Phase energy meter tester KPM SF6 DPM Light KPM SF6 Dew Point Meter KPM CTTC KPM CT Heat Run Test Device KPM CEST KPM Clamp Earth Spike Tester KPM CET 1200 KPM Clamp Earth Tester KPM ET30K KPM Earth Tester with Spikes KPM GERM KPM Online Grid Earth Resistance Monitor KPM CM-0524 KPM Cell Voltage Monitor for Li Ion Batteries KPM battery load bank KPM DC Load Bank , KPM Battery Discharge Kit , KPM Constant Current DC load banks

Each product supplied by KPM undergoes a series of lab & field testing trials. Performance of equipment is closely monitored in rigorous field trials under stringent conditions. Once the equipment passes through these trials, then it is launched in the market .   Trust Shield is an initiative to quantify the testing outcomes. Trust shield is a way to impart transparency to customer's purchase process.  BOUCLIER DE CONFIANCE KPM Une étoile L'équipement avec 1 étoile satisfait aux performances inférieures exigences Plus de 20 essais sur le terrain dans des conditions de site Plus de 100 essais de test dans des conditions de laboratoire Éprouvé sur le marché depuis < 3 ans Dans toutes les exigences ci-dessus, les performances du produit sont surveillées sur la base de : Fiabilité Répétabilité Précision Performance contre l'effet du bruit (Live EHV Switchyards) Robustesse lors des déplacements etc. deux étoile L'équipement avec 2 étoiles satisfait aux performances inférieures exigences Plus de 50 essais sur le terrain dans des conditions de site Plus de 100 essais de test dans des conditions de laboratoire Éprouvé sur le marché depuis plus de 3 ans Dans toutes les exigences ci-dessus, les performances du produit sont surveillées sur la base de : Fiabilité Répétabilité Précision Performance contre l'effet du bruit (Live EHV Switchyards) Robustesse lors des déplacements etc. trois étoile L'équipement avec 3 étoiles satisfait aux performances inférieures exigences Plus de 50 essais sur le terrain dans des conditions de site Plus de 100 essais de test dans des conditions de laboratoire Éprouvé sur le marché depuis plus de 7 ans Dans toutes les exigences ci-dessus, les performances du produit sont surveillées sur la base de : Fiabilité Répétabilité Précision Performance contre l'effet du bruit (Live EHV Switchyards) Robustesse lors des déplacements etc. QUELLE EST LA PERTINENCE DE " TRUST SHIELD " Chaque produit fourni par KPM subit une série d'essais en laboratoire et sur le terrain. Les performances de l'équipement sont surveillées de près lors d'essais rigoureux sur le terrain dans des conditions rigoureuses. Une fois que l'équipement passe par ces essais, il est lancé sur le marché . Trust Shield est une initiative visant à quantifier les résultats des tests. Le bouclier de confiance est un moyen de donner de la transparence au processus d'achat du client. Cela signifie-t-il que 3 étoiles est meilleur que 2 étoiles ? Oui et non, tout équipement avec un KPM TRUST SHIELD 2 étoiles peut être aussi bon qu'un équipement 3 étoiles. nombre d'essais en laboratoire. Le nombre d'étoiles de KPM TRUST SHIELD dépend également de la durée pendant laquelle l'équipement est performant sur le terrain en termes de robustesse et de fiabilité. Tout produit 2 étoiles peut également être classé 3 étoiles s'il fonctionne de manière constante pendant plus de 7 ans.

Our test equipment covers various applications such as relay testing, circuit breaker testing, CT/PT Testing, Earth Testing, Partial Discharge Testing, Transformer Testing, Energy Meter Testing, Li Ion Battery Testing, Utility Battery Testing. SOLUTIONS DE TEST DU SYSTÈME ÉLECTRIQUE Cable LA Meter TRF Relay Machine Battery Testing GIS Circuit Breaker Tap Changer Monitor Testing EV Partial dischage CT/PT Earth testing

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 capacitive voltage divider is used for HV measurement in Partial Discharge Testing and High Voltage Testing| KPM's Capacitive Voltage Dividers are rugged , accurate and of high quality . |https://www.kpmtek.com/capacitive-voltage-divider Diviseur de tension capacitif (non PD)

Advanced circuit breaker test kits by KPM for precise timing analysis, condition monitoring, and electrical system diagnostics. KITS DE TEST DE DISJONCTEURS Vidéo Théorie Analyseur de disjoncteur Voir plus Les fonctions de Circuit Breaker Analyzer couvrent tous les éléments de test des disjoncteurs haute tension. Comparé au testeur de disjoncteur traditionnel KPM Circuit Breaker Analyzer (KPM-CBA) a les avantages uniques suivants : Analyse vibratoire des caractéristiques mécaniques Analyse de distance et de vitesse des contacts mobiles Mesure de résistance de contact statique de 100A Mesure dynamique de la résistance de contact de 100A Test de démarrage basse tension sur bobines de 16V à 300 V Testeur de résistance de contact Voir plus Testeur de résistance de contact (KPM CRT) sorties DC 600A courants pour tester la résistance de contact du disjoncteur ou des contacts de câble à courant élevé. Il est conçu selon per IEC62271. Il mesure principalement la résistance de contact du disjoncteur. Tous les test results du testeur peuvent être imprimés par la micro-imprimante intégrée dans the tester. De plus, tous les résultats de test enregistrés dans le testeur peuvent être téléchargés sur the computer puis enregistrés en tant que document MS WORD. La série KPM-CRT est disponible dans les variantes ci-dessous : 100A 200A 400A 600A KPM ABC-01 Voir plus Analyseur de disjoncteur KPM (KPM-CBA 01) est utilisé pour tester, analyser et évaluer les disjoncteurs du système d'alimentation, les caractéristiques mécaniques des commutateurs de charge et des commutateurs isolés et d'autres commutateurs haute tension CA, Contacts d'arc et caractéristiques de vibration, etc. L'analyseur de disjoncteur couvre tous exigences de test des disjoncteurs haute tension. Comparé au testeur de disjoncteurs traditionnel, l'analyseur de disjoncteurs KPM (KPM - CBA 01) présente les avantages uniques suivants : CARACTÉRISTIQUES L'ensemble de test de disjoncteur KPM CBA-01 est utilisé pour effectuer les caractéristiques électriques et mécaniques des disjoncteurs, interrupteurs et contacteurs haute tension et moyenne tension. Mesure les paramètres de temps du disjoncteur (fermé, ouvert, asynchrone, rebond) de 12 contacts principaux. Ensemble de 12 voyants d'état des contacts sur panneau. Il est facile de juger de l'état fermé et de l'état ouvert. Mesurez la course, la surcourse, le rebond, le dépassement et la vitesse du disjoncteur à l'aide d'un transducteur de résistance ou d'un transducteur numérique. Utilisez un transducteur rotatif numérique pour mesurer l'angle. Actionner les séquences de contrôle Fermer, Ouvrir, OCO, OC, CO. Testez manuellement la caractéristique mécanique actionnée par le disjoncteur. Sortie de contrôle CC intégrée, peut être utilisée pour les tests de tension d'action. Mesurez la courbe de courant du moteur pendant la conduite du moteur, mesure du courant de bobine Vacuum Interruptor Life Analyzer ( VILA )_cc781905-5cde-3194-bb3b- 136bad5cf58d_ Voir plus KPM-VILA (analyseur de durée de vie des interrupteurs à vide) , l'ensemble de test de troisième génération utilisant sa technologie avancée pour déterminer l'état des interrupteurs à vide sur le terrain, en atelier ou en laboratoire. Si vous recherchez un test d'interrupteur à vide significatif, jetez un coup d'œil aux capacités exceptionnelles de notre nouveau VILA (analyseur de durée de vie de l'interrupteur à vide) (aka bouteille à vide testeur) qui peut être utilisé sur le terrain, en atelier ou en laboratoire. En utilisant le Penning Discharge Principal, notre VILA (analyseur de durée de vie de l'interrupteur sous vide) peut facilement identifier La pression à l'intérieur d'une ampoule à vide La durée de vie utile des ampoules à vide Jusqu'à présent, ce type de test ne pouvait être effectué qu'à l'usine d'assemblage. KPM CBT-01 (minuterie de disjoncteur) Voir plus Caractéristiques : 1. Testez les caractéristiques électriques de divers disjoncteurs haute tension. 2. Testez les paramètres de fermeture, d'ouverture, différentes périodes et le temps de rebond de 6 contacts. 3. Il y a 6 indicateurs d'état de contact sur le panneau, ce qui est pratique pour juger si l'état de fermeture ou d'ouverture ou le câblage est correct. 4. Effectuer la commande de fermeture, d'ouverture, d'ouverture et de fermeture, de fermeture, d'ouverture et de fermeture. 5. Alimentation CC réglable haute puissance intégrée, avec bouton de réglage manuel de la tension, bouton de fermeture, bouton d'ouverture, qui peut rapidement s'allumer et s'éteindre et activer le test de tension. 6. L'alimentation CC intégrée peut être utilisée pour le stockage de l'énergie du moteur. 7. Le contrôle de sortie utilise des commutateurs électroniques, avec une précision de contrôle élevée et une longue durée de vie. KPM CBT-01 (minuterie de disjoncteur) Voir plus Caractéristiques : 1. Testez les caractéristiques électriques de divers disjoncteurs haute tension. 2. Testez les paramètres de fermeture, d'ouverture, différentes périodes et le temps de rebond de 6 contacts. 3. Il y a 6 indicateurs d'état de contact sur le panneau, ce qui est pratique pour juger si l'état de fermeture ou d'ouverture ou le câblage est correct. 4. Effectuer la commande de fermeture, d'ouverture, d'ouverture et de fermeture, de fermeture, d'ouverture et de fermeture. 5. Alimentation CC réglable haute puissance intégrée, avec bouton de réglage manuel de la tension, bouton de fermeture, bouton d'ouverture, qui peut rapidement s'allumer et s'éteindre et activer le test de tension. 6. L'alimentation CC intégrée peut être utilisée pour le stockage de l'énergie du moteur. 7. Le contrôle de sortie utilise des commutateurs électroniques, avec une précision de contrôle élevée et une longue durée de vie. KPM CBT-01 (minuterie de disjoncteur) Voir plus Caractéristiques : 1. Testez les caractéristiques électriques de divers disjoncteurs haute tension. 2. Testez les paramètres de fermeture, d'ouverture, différentes périodes et le temps de rebond de 6 contacts. 3. Il y a 6 indicateurs d'état de contact sur le panneau, ce qui est pratique pour juger si l'état de fermeture ou d'ouverture ou le câblage est correct. 4. Effectuer la commande de fermeture, d'ouverture, d'ouverture et de fermeture, de fermeture, d'ouverture et de fermeture. 5. Alimentation CC réglable haute puissance intégrée, avec bouton de réglage manuel de la tension, bouton de fermeture, bouton d'ouverture, qui peut rapidement s'allumer et s'éteindre et activer le test de tension. 6. L'alimentation CC intégrée peut être utilisée pour le stockage de l'énergie du moteur. 7. Le contrôle de sortie utilise des commutateurs électroniques, avec une précision de contrôle élevée et une longue durée de vie. Comparaison - Testeurs de disjoncteurs Théorie - Test de disjoncteur Theory CB Testing Un disjoncteur est un interrupteur électrique à commande automatique conçu pour protéger un circuit électrique contre les dommages causés par une surcharge ou un court-circuit. Sa fonction de base est de détecter une condition de défaut et d'interrompre le flux de courant. Le disjoncteur reçoit la commande « Déclenchement » des relais respectifs pendant les conditions de défaut. Les paramètres suivants sont souvent testés sur un disjoncteur. Tests communs sur les disjoncteurs Heure de fermeture et heure d'ouverture Tests de mouvement (comme recommandé dans la CEI 1208) Amortissement Courants de bobine Tension de déclenchement Résistance de contact statique des contacts principaux Nouvelles méthodes de diagnostic des disjoncteurs Résistance de contact dynamique Essais de vibrations. Forme de la courbe de courant de la bobine Intégrité de la bouteille sous vide Capacité et Tan Delta du condensateur de classement Mesure du point de rosée du gaz/air SF6 Les valeurs mesurées sont comparées aux valeurs limites spécifiées par le fabricant ou aux valeurs auxquelles l'organisme de maintenance est parvenu par expérience. Dans de nombreux cas, une « empreinte digitale », consistant en différentes mesures prises lorsqu'un disjoncteur est neuf, est compilée. Cette empreinte peut ensuite être utilisée comme référence pour les mesures ultérieures. Tout changement trouvé indique clairement un changement dans l'état du disjoncteur. Théorie - Test de disjoncteur Circuit Breaker Test Kits : 01 Why Timing Tests on Circuit Breakers Matters ? During a circuit breaker timing test, the opening and closing times of main and auxiliary contacts are measured to assess the breaker's mechanical and electrical performance. The test simulates real fault or operation conditions, records response times (e.g., O, C, O-C-O), and analyzes contact synchronization, bounce, and trip coil current. These measurements reveal issues like slow operation, wear, or misalignment. Advantages include early fault detection, improved safety, reduced downtime, and compliance with IEC/ANSI standards. KPM offers precise timing test equipment with advanced diagnostics, helping utilities and industries maintain system reliability and extend breaker life through data-driven maintenance planning. 02 What means measuring contact resistance in Circuit Breakers ? A contact resistance test measures the electrical resistance across closed contacts of a circuit breaker. Low resistance ensures efficient current flow with minimal losses or overheating. High resistance can indicate pitting, corrosion, or poor contact pressure. This test helps detect internal issues not visible externally. It’s essential for preventing energy losses, overheating, and eventual failure during load or fault conditions. Regular testing ensures optimal breaker performance, safety, and longevity. KPM offers contact resistance test equipment with high accuracy and data logging, enabling predictive maintenance, faster troubleshooting, and compliance with IEC/IEEE standards across substations and industrial power systems. 03 What is the use of both side ground feature in contact resistance meter ? The both-side ground feature in a contact resistance meter allows the tester to connect the instrument’s ground reference on both ends of the circuit breaker contacts simultaneously. For Example:- - Eliminate interference and noise caused by stray currents or electromagnetic fields. - Improve measurement accuracy by ensuring a stable, low-resistance ground path. - Prevent false readings that may occur if only one side is grounded. - It increases the safety of the operation. - KPM’s contact resistance meter CRT 200 G use this feature to deliver precise, repeatable readings critical for assessing contact health and ensuring reliable breaker operation. 04 Why is understanding Coil Current Analysis in Breaker Testing important ? Coil current analysis involves measuring the current drawn by the trip and close coils during circuit breaker operation. This current signature helps diagnose the breaker’s mechanical and electrical health. Changes in current shape, peak value, or duration can reveal issues like sluggish movement, coil burnout, weak springs, or mechanical obstructions. Analyzing the coil current curve provides early warnings of potential failure before timing or contact issues become visible. It enhances predictive maintenance and helps avoid costly downtime. KPM’s test systems capture detailed coil current waveforms, enabling precise diagnostics, improved reliability, and safe operation of critical power systems. 05 How to do Dynamic Contact Travel Analysis ? Dynamic contact travel analysis measures the real-time movement of a circuit breaker’s main contacts during operation using motion sensors or transducers. It captures parameters like stroke, velocity, overtravel, rebound, and contact wipe. This test reveals mechanical wear, misalignment, or sluggish movement that timing tests alone can miss. It ensures the breaker’s mechanical integrity, proper contact engagement, and smooth operation under stress. KPM’s breaker analyzers support dynamic travel analysis with high-resolution sensors and software that visualizes motion curves. This allows for accurate diagnostics, preventive maintenance, and verification that breakers meet design and safety standards. 06 What is Vacuum Interrupter Testing ?What is its Life Cycle and Failure Modes? Vacuum interrupters (VIs) are critical components in medium-voltage circuit breakers, responsible for arc extinction. Though sealed for life, their performance can degrade over time. Life Cycle: VIs have a defined mechanical and electrical life—typically 10,000+ operations or a set number of fault interruptions. Factors like switching frequency, fault levels, and contact wear influence lifespan. Failure Modes: Loss of vacuum (leakage) Contact erosion or misalignment Internal flashover or dielectric breakdown Testing: KPM offers vacuum interrupter testers to check vacuum integrity using high-voltage AC/DC or magnetron-based methods, ensuring reliability, safety, and timely replacement decisions. 07 Why you Shouldn’t Ignore Pre-Insertion Resistor Testing ? Pre-insertion resistors (PIRs) reduce inrush currents during circuit breaker closing, protecting equipment from voltage transients and mechanical stress. Ignoring PIR testing can lead to undetected resistor failure, delayed insertion, or complete bypass—compromising system stability. Regular PIR testing verifies correct resistor engagement, timing, and resistance values. It ensures effective damping of switching surges, especially in capacitor bank or transformer applications. KPM’s breaker analyzers can assess PIR timing and resistance performance with precision, helping prevent equipment damage, extend asset life, and maintain reliable power system operation. Skipping this test risks hidden failures and costly breakdowns. 08 Differences Between Testing SF6, Vacuum, and Oil CBs ? Here’s a concise comparison of testing SF6, Vacuum, and Oil Circuit Breakers (CBs): SF6 CBs: Tests focus on gas pressure, density, and leakage, plus timing, contact resistance, and gas quality analysis. SF6 ensures excellent arc quenching. Vacuum CBs: Emphasis on vacuum integrity testing, contact resistance, timing, and coil current analysis. Vacuum interrupters have a sealed, long-life design. Oil CBs: Requires insulation and oil quality tests, contact resistance, timing, and sometimes oil dielectric strength checks. Oil acts as arc quenching and insulation medium. KPM offers specialized test equipment tailored for each CB type, ensuring accurate diagnostics, maintenance, and safety compliance. 09 Difference between Circuit Breaker Analyzer and Manual Timer – Pros & Cons? Circuit Breaker Analyzer Pros: High accuracy and repeatability Measures multiple parameters (timing, coil current, contact resistance) Data logging and analysis software Detects subtle faults and trends Faster and safer testing Cons: Higher initial cost Requires some training to operate Manual Timer Pros: Low cost and simple to use Portable and no power needed Cons: Limited accuracy and precision Measures only basic open/close timing No data recording or advanced diagnostics Prone to human error KPM provides advanced analyzers that save time, improve safety, and offer detailed diagnostics for better maintenance decisions. 10 How Temperature and Environment Affect CB Test Results ? Temperature Effects: Cold temperatures can stiffen mechanical parts, causing slower operations and longer timing. High temperatures may reduce coil resistance, affecting current measurements. Extreme temps can alter contact resistance readings due to material expansion or contraction. Environmental Factors: Humidity can cause corrosion or moisture ingress, affecting insulation and contacts. Dust and contaminants can interfere with mechanical movement or electrical contacts. Vibrations or electromagnetic interference may distort sensitive measurements.

KPM transformer test equipment ensures accurate, reliable, and efficient testing for power and distribution transformers in industrial applications. KIT DE TEST DE TRANSFORMATEUR FAQ Vidéo Théorie Tan Delta Testeur Voir plus KPM TD-12 est un équipement simple et robuste pour PF/DF mesures de -: Transformateurs de puissance Machines tournantes Transformateurs de courant Transformateurs de tension Câbles haute tension (HT) Systèmes d'appareillage de commutation à isolation gazeuse (GIS) KPM TD-12 avec l'aide de sa conception spéciale est capable d'effectuer des tests Tan Delta dans un environnement de sous-station hautement chargé jusqu'à 765KV. Quelques points clés Test à 10 KV/12 KV avec incrément de 0,1 KV Freq @45HZ/55HZ , 47.5HZ/52.5HZ, 55HZ/65HZ, 57.5HZ/62.5HZ, Automatic double fréquence Unité puissante de 2000VA L'instrument dispose de nombreuses mesures de protection, telles que les fluctuations de tension d'entrée, les courts-circuits de sortie, les surtensions, les surintensités et les surchauffes. KPM TD 12 avec l'aide d'accessoires optionnels est capable de tester Tan delta de -: Huile de transformateur à l'aide de Oil Test Cell Générateurs à haute capacité . N'hésitez pas à contacter pour plus de détails. Testeur IR Voir plus KPM-5KP is an easy to use 5KV IR Tester with user selectable voltage ranges 500V,1000V,2500V,5000V._cc781905-5cde- 3194-bb3b-136bad5cf58d_ Il est adapté pour mesurer l'isolation de interrupteurs, panneaux,_cc781905-5cde-3194-bb3b-136bad5cf58ct générateurs électriques, haute tension/moteurs pt, haute tension condensateurs, câbles d'alimentation, parafoudres et autres équipements de test de résistance d'isolement idéaux. Principales caractéristiques-: Installation PI/DAR Courant court <1ma Fonction de décharge automatique pour rendre l'opération sûre. Fonction « Guard » avancée pour des mesures précises Symboles d'avertissement de circuit en direct avec sons audio. Convient pour un adaptateur 12V DC (12V/1A) ou une batterie interne Testeur de rapport de tours Voir plus KPM-TTR3 est un testeur de rapport de transformateur triphasé utilisé pour mesurer le rapport de tension de 3 ou 1 transformateur de phase. Toutes les données et les résultats des tests sont affichés sur un écran LCD 320*240. Tous les résultats des tests peuvent être imprimés sur site par la micro-imprimante. KPM-TTR3 dispose d'une mémoire intégrée pour enregistrer les résultats des tests. Le circuit de réduction avancée du bruit fait du KPM-TTR3 un équipement idéal pour les conditions de terrain. Testeur de résistance d'enroulement de transformateur (1 phase) Voir plus KPM propose une gamme complète d'équipements de test de transformateur TWRT-2A (2A, test 1 phase) TWRT-10A (10A, test 1 phase) TWRT-20A (20A, test 1 phase) TWRT-40A (40A, test 1 phase) TWRT-20 ( 40A , 1 Phase Testing & 20A, 3Phase Testing ) . SFRA & Sht. CKt. Impédance Voir plus Le transformateur de puissance est un équipement électrique important, son fonctionnement sûr et fiable est extrêmement important pour les systèmes électriques. KPM SFRA+ est développé pour tester l'intégrité mécanique et électrique des transformateurs de puissance après transport ou exposition à des courants de défaut élevés. Il utilise le Principe SFRA (Sweep Frequency Response Analysis) Merde. Ckt. Méthode d'impédance & mesure la fonction de transfert électrique sur une large gamme de fréquences. Tan Delta Testeur Voir plus KPM TD-12 est un équipement simple et robuste pour PF/DF mesures de -: Transformateurs de puissance Machines tournantes Transformateurs de courant Transformateurs de tension Câbles haute tension (HT) Systèmes d'appareillage de commutation à isolation gazeuse (GIS) KPM TD-12 avec l'aide de sa conception spéciale est capable d'effectuer des tests Tan Delta dans un environnement de sous-station hautement chargé jusqu'à 765KV. Quelques points clés Test à 10 KV/12 KV avec incrément de 0,1 KV Freq @45HZ/55HZ , 47.5HZ/52.5HZ, 55HZ/65HZ, 57.5HZ/62.5HZ, Automatic double fréquence Unité puissante de 2000VA L'instrument dispose de nombreuses mesures de protection, telles que les fluctuations de tension d'entrée, les courts-circuits de sortie, les surtensions, les surintensités et les surchauffes. KPM TD 12 avec l'aide d'accessoires optionnels est capable de tester Tan delta de -: Huile de transformateur à l'aide de Oil Test Cell Générateurs à haute capacité . N'hésitez pas à contacter pour plus de détails. Testeur IR Voir plus KPM-5KP is an easy to use 5KV IR Tester with user selectable voltage ranges 500V,1000V,2500V,5000V._cc781905-5cde- 3194-bb3b-136bad5cf58d_ Il est adapté pour mesurer l'isolation de interrupteurs, panneaux,_cc781905-5cde-3194-bb3b-136bad5cf58ct générateurs électriques, haute tension/moteurs pt, haute tension condensateurs, câbles d'alimentation, parafoudres et autres équipements de test de résistance d'isolement idéaux. Principales caractéristiques-: Installation PI/DAR Courant court <1ma Fonction de décharge automatique pour rendre l'opération sûre. Fonction « Guard » avancée pour des mesures précises Symboles d'avertissement de circuit en direct avec sons audio. Convient pour un adaptateur 12V DC (12V/1A) ou une batterie interne Kit de test HUILE BDV Voir plus Comme son nom l'indique, le kit de test Oil BDV (KPM-OBD80/100+) 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 5 KV/sec avec plans de test automatiques selon CEI et IS 0.5KV/sec to 5KV/sec variable voltage rise as per ASTM Standards 136bad5cf58d_ modèles) SFRA & Sht. CKt. Impédance Voir plus Le transformateur de puissance est un équipement électrique important, son fonctionnement sûr et fiable est extrêmement important pour les systèmes électriques. KPM SFRA+ est développé pour tester l'intégrité mécanique et électrique des transformateurs de puissance après transport ou exposition à des courants de défaut élevés. Il utilise le Principe SFRA (Sweep Frequency Response Analysis) Merde. Ckt. Méthode d'impédance & mesure la fonction de transfert électrique sur une large gamme de fréquences. SFRA & Sht. CKt. Impédance Voir plus Le transformateur de puissance est un équipement électrique important, son fonctionnement sûr et fiable est extrêmement important pour les systèmes électriques. KPM SFRA+ est développé pour tester l'intégrité mécanique et électrique des transformateurs de puissance après transport ou exposition à des courants de défaut élevés. Il utilise le Principe SFRA (Sweep Frequency Response Analysis) Merde. Ckt. Méthode d'impédance & mesure la fonction de transfert électrique sur une large gamme de fréquences. Vidéo - Test de transformateur de puissance Video - Power Transformer Testing 765KV live switchyard ,Tan Delta Testing of Grading Capacitors Lire la vidéo CT PT Analyzer Lire la vidéo Power of 90' Rotational view , thermal imager camera Lire la vidéo 765KV live switchyard ,Tan Delta Testing of Grading Capacitors Lire la vidéo CT PT Analyzer Lire la vidéo Facebook Twitter Pinterest Tumblr Copiez le lien Lien copié Fermer Theory Power Transformer Testing Théorie - Test de transformateur de puissance Les transformateurs haute tension font partie des équipements les plus importants (et les plus coûteux) nécessaires au fonctionnement d'un système électrique. Une multitude de vérifications et de tests sont effectués au fur et à mesure que le transformateur est assemblé à la sous-station. L'ingénieur d'essai ne peut pas effectuer directement tous les tests et inspections suivants, mais doit s'assurer qu'ils sont terminés de manière satisfaisante. préparation de la banque à être dynamisée. Test IR Capacité et Tan Delta Testeur de résistance d'enroulement de transformateur Rapport de tours du transformateur Test d'équilibre magnétique du transformateur Test de courant magnétisant du transformateur Test de groupe vectoriel du transformateur Élévation de température du transformateur Test du changeur de prises SFRA - Analyseur de réponse en fréquence de balayage Test CT de douille de transformateur . Foire aux questions (FAQ) FAQ - TDK Tan delta fundamentals 01 What is tan delta testing? Insulation is never a perfect capacitor. Electrically it behaves as a capacitance with a resistance in parallel across it, and tan delta measures the ratio between the currents those two elements draw. Apply AC voltage to ideal insulation and it draws only capacitive current, leading the voltage by exactly 90°. Real insulation has a finite parallel resistance as well, so it also draws a small resistive current in phase with the voltage. The total current therefore falls short of 90° by an angle δ — the loss angle — and tan delta is simply the ratio of those two components: tanδ = IR / IC.A reading of 0.3% means the resistive current is three parts in a thousand of the capacitive current. What makes this the right quantity to measure is that it describes the material rather than the specimen: tanδ = 1/(ωRC), and for a given dielectric the product RC depends only on resistivity and permittivity, so the specimen's size and shape cancel out. As insulation absorbs moisture, becomes contaminated or ages, its parallel resistance falls while its capacitance changes very little — so the ratio rises. 02 What is the difference between tan delta, dissipation factor and power factor? They are closely related but not identical. tanδ is the tangent of the dielectric loss angle δ. Power factor is cos θ, where θ is the phase angle between voltage and current, and δ + θ = 90°. Dissipation factor is simply another name for tan delta. At the low loss values typical of healthy high-voltage insulation the two are numerically almost identical, which is why the terms get used interchangeably in the field and why most instruments display both rather than arguing the point. 03 Why measure tan delta if insulation resistance has already been tested? They answer different questions. An insulation resistance test applies DC and reports surface leakage and gross contamination, and its value depends on the size and shape of the specimen, which makes readings awkward to compare between different assets — where tan delta, being a ratio, does not. A tan delta test applies AC at or near service stress and reports on the bulk condition of the dielectric — moisture ingress, ageing of the oil-paper system, voids. A bushing or current transformer can pass an IR test comfortably and still show a tan delta trend that says it is deteriorating. In practice the two are sequential rather than alternative: an insulation test is normally carried out first, both as a condition check and as a precaution before AC test voltage is applied. 04 What does a rising tan delta value indicate? A rising value means the insulation is dissipating more energy due to resistive path than it previously did — typically from moisture ingress, contamination, ageing, or voids developing within the dielectric. Because the absolute figure depends on equipment type, design, insulation system and temperature, the useful signal is normally the trend against that asset's own history and the comparison between the three phases of the same unit, rather than the reading in isolation. A step change in capacitance measured at the same time is a stronger indicator still. 05 What does the capacitance reading tell me alongside tan delta? Capacitance is measured at the same time and reflects the geometry of the insulation rather than its quality. In a condenser-graded bushing, a step increase in capacitance indicates that one or more capacitive layers have punctured and shorted out — a failure mode tan delta alone may not flag dramatically. Catching it depends on capacitance accuracy rather than on tan delta accuracy, which is why a kit intended for bushing work needs a credible figure for both. 06 Which equipment is routinely tan delta tested? Power transformers (winding-to-winding and winding-to-earth), condenser-graded bushings, current transformers, potential transformers, capacitor voltage transformers, surge arresters, capacitors and rotating machine insulation. In a typical substation maintenance schedule, transformer bushings and instrument transformers account for most of the work, because they are the assets where a developing dielectric fault gives little other warning before it fails. 07 Is tan delta testing destructive? No. It is a diagnostic test performed at or below the equipment's normal operating stress, not a withstand test, so it does not deliberately stress insulation towards failure the way a hipot or applied-voltage test does. That is precisely what makes it suitable for routine condition monitoring — the test can be repeated on the same asset year after year to build a trend without consuming insulation life each time. 08 How does tan delta testing compare with partial discharge testing? They find different things. Tan delta reports a bulk, averaged property of the whole dielectric, so it is good at diffuse deterioration — moisture, ageing, general contamination — and poor at pinpointing a single localised defect. Partial discharge testing detects discrete discharge activity and is far better at finding a specific void or defect, but says little about overall condition. Most maintenance programmes use tan delta as the routine screening test because it is quick and repeatable, and reach for PD when a result needs investigating. 09 What test voltage does a tan delta kit need to produce? Routine testing on instrument transformers, bushings and transformer windings is commonly performed at 10 kV, with equipment rated below that tested at its own rated line-to-earth voltage. That sets the practical requirement: at least 10 kV with some headroom above it, and genuinely fine adjustment (500V min ) at the low end for lower-rated apparatus — a kit that steps in coarse increments cannot sit neatly on the rated voltage of a small CT. 10 Why does the maximum testable capacitance fall as test voltage rises in a tan delta kit? Because the current the kit must supply rises with both capacitance and voltage. The charging current of a capacitive specimen is I = 2πfCV, so doubling the test voltage doubles the current demand for the same specimen, and a portable source has a finite output. This is a power limit, not a measurement limit. It has a practical consequence when reading datasheets: a capacitance range quoted as a single headline figure tells you almost nothing, because that figure is only achievable at the lowest test voltage. The useful form is a ceiling stated at each voltage — and a large specimen is then tested at a lower voltage rather than refused. 11 What accuracy should I expect from a tan delta kit? Accuracy is normally quoted in two terms — a percentage of reading plus a fixed floor, written as ±(reading × a% + b) — and which term dominates depends entirely on what you are measuring. On healthy insulation reading a few tenths of a percent, the percentage term is tiny and the fixed floor is essentially the whole error. That makes the fixed term the number to compare between kits, and it is the one most often buried. Resolution is a separate thing and frequently confused with it: resolution is how many digits the display shows, which can easily be more digits than the instrument can justify. 12 Should the standard capacitor be built in or external of a tan delta kit? A built-in high-stability standard capacitor means routine testing needs no external reference — one less precision item to transport, calibrate and damage on site, which matters on a testing round that moves between substations. An external standard capacitor input is still worth having, because it is what allows a field accuracy check against a traceable reference and supports high-voltage measurement against an external standard. The practical answer for most field kits is built in, with the external input available when required. 13 What is a variable-frequency of a tan delta kit, and does it matter in a live substation? It is the most consequential difference between kits used in energised switchyards. Electric field from adjacent live bays couples into the test leads at power frequency and corrupts the measurement, and the higher the surrounding voltage class the worse it gets. A variable-frequency instrument measures at frequencies deliberately offset either side of mains and filters out the power-frequency component, typically measuring at both offsets and combining the results. Because the interference sits at 50 Hz and the measurement does not, the two are separable. A fixed 50 Hz kit has no mechanism to tell them apart — the interference simply becomes part of the reading, which is worse than a noisy result because it looks plausible. 14 Can one tan delta kit test transformers, bushings, CTs, PTs and CVTs? Yes. A kit with GST, UST and GSTg modes and both polarity options covers power and instrument transformers, condenser bushings, CTs, PTs and CVTs, and with an oil test cell it extends to the dielectric loss of insulating oil. The usual exception is power cable: a cable run of any length presents capacitance far beyond what a power-frequency kit can drive at test voltage, and cable dielectric loss testing is normally done with a dedicated very-low-frequency set at 0.1 Hz instead. 15 What supply does a tan delta kit need on site, and can it run from a generator? Single-phase mains, and most field instruments tolerate a stated window either side of nominal because site supply is rarely clean. Two things are worth checking before plugging in on an unfamiliar site. First, the absolute maximum input — exceeding it typically causes damage that no warranty covers, so an unstable or unregulated supply should be measured rather than assumed. Second, if the site is running on a generator, the generator's output neutral normally has to be earthed; an unearthed neutral is a common cause of an instrument refusing to start and reporting an earthing fault. 16 How portable is a tan delta kit? It depends mostly on one design decision: whether the dielectric loss bridge, the test source, the step-up transformer and the standard capacitor are integrated into a single case, or split across two or more units. An integrated kit is heavier as one item but is a single lift and a single set-up; a split design has lighter components but means a second case to carry up a gantry and additional connections to make at every test point. Ask for mass and dimensions of every item that has to reach the test position, not just the main unit. The KPM TD12 has a compact design, with an overall size comparable to a 13-inch MacBook, while weighing only approximately 24 kg.The KPM TD12 Pro is larger in size and offers a higher current capacity. It also comes with a built-in 10 kV insulation resistance (IR) tester, providing additional testing functionality in a single unit. 17 What should be supplied with a tan delta kit? As a minimum: the instrument, the matched high-voltage and low-voltage test leads, an earthing lead, a mains lead, operating instructions and a certificate of conformity, with a carrying case for the accessories. The test leads deserve more attention than they usually get — an instrument of this class is calibrated together with its supplied leads, and substituting a general-purpose cable can shift the measured result, because the cable's own characteristics become part of the measurement. Replacements should be ordered from the supplier rather than made up locally. 18 What should I ask a supplier before buying a tan delta kit? Eight questions that separate datasheets quickly.What is the capacitance ceiling at each test voltage, not just the headline range?What is the fixed term in the accuracy expression, as distinct from the resolution?Is interference rejection by variable frequency or is the kit fixed at power frequency?Are all three of GST, UST and GSTg available, and can both polarities be used?Can a CVT be tested without breaking its high-voltage connection?Is the standard capacitor internal, and can an external one be used for verification?What does the instrument refuse to do when earthing is missing or a specimen is faulty?And who answers the phone when a reading looks wrong at seven in the evening during a shutdown? 19 What is the difference between UST, GST and GSTg test modes in a tan delta kit? They differ in what the measurement includes. UST — ungrounded specimen test — measures only the insulation between two ungrounded terminals and ignores everything connected to earth. 1. Internal voltage - internal standard (CX) - straight polarity method2. Internal voltage - external standard ( CN ) - straight polarity method (must firstly set up the capacity of external standard)3. External voltage - internal standard (CX) - straight polarity method4. External voltage - external standard - straight polarity method (must firstly set up thecapacity of external standard CN ) GST — grounded specimen test — measures everything from the energised terminal to earth. Internal voltage - internal standard - reverse polarity methodInternal voltage - external standard - reverse polarity method (must firstly set up the capacity of external standard)External voltage - internal standard - reverse polarity methodGSTg — grounded specimen test with guard — measures to earth but diverts one current path into a guard circuit so it is excluded from the result. Running them in combination is what lets you resolve individual capacitances rather than only their sums, which is the whole reason a diagnostic set offers more than one mode.GSTg 20 What is the difference between straight and reverse polarity connection in a tan delta kit? Straight polarity — also called normal or positive — is used when the specimen’s low-voltage end is free and can be lifted from earth. Test voltage is applied at the high end, and the current is collected from the isolated low end and returned to the instrument’s measuring input. The measuring circuit therefore sits at earth potential, which is both safer and more accurate, and it is the arrangement to use wherever the specimen allows it.Internal voltage - internal standard - straight polarity methodReverse polarity is used when the low end is permanently bonded to earth and cannot be lifted — a great deal of installed apparatus is built that way. The return path then runs through earth, and the measurement has to be taken at the high-voltage end instead. Two consequences follow. The measuring connection sits at test potential, so the work demands more care. And the measurement now sees stray capacitance from the high-voltage lead to earth, which adds into the result — which is why a reverse-polarity test wants the HV lead suspended and clear of ground, and why reverse-polarity readings are generally held to be the less accurate of the two.Internal voltage - internal standard - reverse polarity methodBoth arrangements then divide again, according to where the test voltage comes from and where the reference comes from.A tan delta bridge does not measure the specimen on its own. It compares the current through the specimen against the current through a standard capacitor at the same voltage, and the result is the difference between them. With the instrument’s own source and its own built-in standard that equality is automatic, and it covers the great majority of field work. An external standard is needed in three situations:when an external high-voltage source is being used,when a traceable reference is wanted for an accuracy checkwhen the test voltage is above what the built-in standard is rated for.wo conditions attach to it. Its capacitance value must be entered into the instrument before the test, or every reading is wrong in proportion to the difference. And it must be a genuinely low-loss reference, because the standard’s own dielectric loss enters the result as an error..An external high-voltage source is needed when the test calls for more voltage than the internal source produces, or more current than it can drive into a large capacitive specimen. In that arrangement the instrument stops being the source and works purely as a bridge, and one rule governs the wiring: the external source must energise the specimen and the standard capacitor from the same point. If the two branches see different voltages the comparison is meaningless — and the reading will still look entirely plausible (Straight Polarity Method — internal or external source, against internal or external standard)(Reverse Polarity Method- internal or external source, against internal or external standard) 21 Why is the standard capacitor in tan delta kit gas-filled? Because the reference’s own loss lands directly in your answer. A tan delta bridge compares the current through the specimen against the current through a standard capacitor, and reports the difference between them. Whatever dielectric loss the standard has therefore appears in the result as an offset on every reading it is ever used for. That sets a hard requirement. Healthy insulation is being measured at a few tenths of one per cent, so the reference has to sit two or three orders of magnitude below that — loss low enough to be treated as zero. No solid dielectric can do this. Every solid insulating material has measurable loss of its own, and that loss shifts with temperature and humidity and creeps upward as the material ages — the very behaviour the instrument exists to detect. A reference built from solid dielectric would be a specimen pretending to be a standard.A gas dielectric has effectively none of it. Compressed nitrogen or SF6 has no polar structure to dissipate energy, so the loss is set by the electrode geometry rather than by a material property. Two further benefits come with it. The capacitance is fixed by the mechanical spacing of rigid electrodes rather than by a material constant, so it is stable over years rather than drifting. And compressing the gas raises its breakdown strength, which lets the electrodes be spaced for high voltage without the capacitor becoming unmanageably large.The practical consequence matters more than the physics. If you ever connect an external reference, it must be a purpose-built gas-filled standard. A power-factor-correction capacitor, a film capacitor or whatever high-voltage unit happens to be on the shelf has loss comparable to or greater than the value you are trying to measure. It will give you readings — plausible ones — that are mostly a measurement of the capacitor you substituted. KPM’s Tan Delta Kits have high quality gas filled capacitors. 22 When is an external high-voltage source or external standard capacitor needed ? An external high-voltage source is used when the test calls for a voltage above what the instrument's internal source produces. An external standard capacitor is used when measuring against a traceable external reference — for an accuracy verification, or for high-voltage measurement against an external standard. One prerequisite applies whenever an external standard is used and is a common source of wrong results: its capacitance value has to be entered into the instrument before the test is run, or every reading is out by whatever the difference happens to be. 23 How is a two-winding transformer tested by tan delta kit? With two guarded measurements that between them separate the insulation paths.GSTg ( Chg+Chl)GSTg ( Clg+Clh) For CHG + CHL, the guard is applied to the LV winding and the measurement is taken from the HV winding. For CLG + CLH, the guard is applied to the HV winding and the measurement taken from the LV winding. Adding an ungrounded measurement of the winding-to-winding capacitance lets the individual values be resolved rather than left as sums. The principle to hold on to is simple: whichever winding the guard is applied to is the winding excluded from that measurement. 24 How is a three-winding transformer tested by tan delta kit? Three-winding transformer CHG+CHL(shield of high voltage line connected to T winding)Three-winding transformer CTG+CHTLV (shield of high voltage line connected to winding)Three guarded measurements, each excluding a different winding — CHG + CHL guarding the tertiary, CLG + CLT guarding the HV winding, and CTG + CHT guarding the LV winding. The pattern is the same one as for a two-winding unit, applied three times: the guarded winding is the one taken out of the measurement. Getting the guard onto the wrong winding is the most common error in this test and produces a result that looks entirely reasonable, which is what makes it dangerous. 25 Can CVT ratio & phase be measured using the Tan delta kit instrument? On instruments that include the function, yes — dielectric loss, capacitance, ratio and phase angle can be measured in one visit with one set of connections. For CVT work this is worth more than it first appears, because it removes a separate ratio set from the kit and, more to the point, removes a second round of connecting and disconnecting at height on an asset that is awkward to reach. 26 Can the dielectric loss of insulating oil be measured with the same instrument? With an oil test cell accessory, yes. The cell holds a sample of known geometry and the instrument measures its dielectric loss directly, so oil condition and apparatus condition can be assessed with the same instrument on the same visit rather than sending samples away and waiting. 27 What record keeping does tan delta testing require? More than the test itself, because the technique is only as good as the baseline it is compared against. Each result needs the test voltage, the frequency, the mode and connection used, the specimen temperature, and the date — a reading recorded without its temperature cannot be meaningfully compared with anything measured later. On-board storage and an export route both matter for this reason: storage keeps the record at the point of test where it cannot be mislaid, and export is what gets it into a trend that survives a change of personnel. 28 Why are my tan delta readings fluctuating? Start with the connections, because that is where most cases end. The measuring lead has to land on a genuinely zero-resistance point on the specimen at both ends — a painted terminal, a loose clamp or a corroded stud is enough to make a reading wander, and the fault is invisible at a glance. Next, check that the supplied test leads are being used: an instrument of this class is calibrated with its own leads, and a substituted cable brings its own characteristics into the measurement. After that, look at shielding and earthing, then at whether interference from nearby energised equipment is reaching the test loop. 29 The Tan Delta instrument will not raise voltage and reports an earthing fault. What should be checked? Treat it as a protection working rather than a fault. Instruments of this class detect the earth connection and deliberately refuse to raise voltage without a reliable one, which is the behaviour you want. Check the earthing lead back to station earth first, and check it at both ends rather than at the instrument only. If the site is running on a generator, check the generator: an unearthed output neutral is a frequent cause of an earthing prompt and is the one operators rarely think of, because the instrument was working perfectly on mains an hour earlier. 30 Does nearby energised equipment affect the reading of Tan Delta kit? Yes, and in a working substation it is usually the dominant error source. Electric field from adjacent live bays couples into the test loop at power frequency. A variable-frequency instrument handles this by measuring away from power frequency and filtering out the coupled component, which is what makes testing practical with the rest of the yard energised. Good practice helps regardless of instrument: keep test leads off the ground and clear of live conductors, keep the high-voltage lead suspended, terminate shields properly, and keep the loop area as small as the job allows. 31 Why does the reading differ between test frequencies in a Tan delta kit? A small difference is not unusual, because dielectric loss in some insulation systems is genuinely frequency-dependent. A large divergence is a different signal: it usually means interference rejection is incomplete, and it is a prompt to check connections, shielding and earthing before the result is trusted at all. Treat a wide spread between frequencies as information about the test set-up rather than about the insulation. 32 Does tan delta need temperature correction? Tan delta is strongly temperature-dependent, so results are normally corrected to a common reference temperature before being compared against history or against an acceptance limit. Correction factors are specific to the insulation system and come from the governing standard or the equipment manufacturer — there is no single universal table, and applying the wrong one is worse than applying none. The discipline that matters is recording winding or oil temperature with every result, because an uncorrected reading with no temperature against it cannot be compared with anything measured later. 33 What tan delta value is acceptable? There is no single universal figure, and any source offering one without qualification is worth distrusting. Acceptance depends on equipment type, insulation system, voltage class, temperature, and the standard or manufacturer's test certificate governing the asset. What engineers use in practice is comparison rather than absolutes: the reading against that unit's own commissioning value, against its own trend across successive tests, and against the other two phases of the same unit. A value that has doubled from its baseline is significant even while it remains numerically small — and a value that looks high but has not moved in ten years usually is not. 34 Why would tan delta be measured at more than one voltage? Comparing results across a range of test voltages — often called a tip-up or voltage-dependence check — can reveal defects a single-voltage test does not, because some conditions only begin to dissipate significantly as electrical stress rises. A specimen that reads acceptably at low voltage and climbs steeply as voltage increases is telling you something a single reading would have hidden. Whether it forms part of a given routine depends on the asset and the maintenance standard being followed. 35 Why is my tan delta reading negative? A genuinely negative dielectric loss is not physically possible in passive insulation, so a negative reading is telling you about the measurement rather than about the specimen. The usual causes are a connection or guard error that has put a current path where the instrument does not expect one, interference from nearby energised equipment large enough to swamp a very low loss reading, or a stray path to earth on a specimen that should be isolated. Re-check the guard arrangement and the earthing before doing anything else; a negative value is one of the more useful warnings an instrument gives, because it is unambiguous. 36 Can tan delta testing be done while adjacent equipment is energised? The apparatus under test must itself be de-energised, isolated, earthed and discharged before connection — that is not negotiable. Surrounding equipment may remain energised, and in practice that is the normal condition rather than the exception, which is what makes interference rejection a practical requirement rather than a specification nicety. Normal high-voltage working practice applies throughout: permit to work, proved isolation, earthing applied and removed under control. 37 What checks are required before applying test voltage in a Tan Delta kit? Earth the instrument reliably. Confirm the specimen is isolated, earthed and discharged, then remove the earth from the specimen before testing. Carry out an insulation test on the equipment before applying AC test voltage. Establish the equipment's withstand level and choose a test voltage below it, so the test cannot spark through the specimen and damage the instrument. Confirm the site supply is inside the instrument's stated window. Keep high-voltage leads clear of personnel and check them for damage before every job — a lead that was sound last month is not evidence about today. 38 What must never be done during a Tan Delta Test? Never disconnect a test lead while voltage is applied - the discharge path may be through whoever is holding it. Never touch the high-voltage terminal or connected equipment while the instrument is raising voltage. Never exceed the stated maximum supply input. Never let a suspended high-voltage lead contact ground during a test where it is meant to be clear. And never leave a tested specimen un-earthed at the end of a test: a capacitive specimen holds charge after the source is removed, and discharging and earthing before touching anything is the last step of the test, not an afterthought. 39 How often should a tan delta kit be calibrated? Annual calibration against a traceable standard is the usual expectation for test and measurement equipment in utility service, and tender specifications frequently require a valid certificate at the point of supply. An instrument with an external standard capacitor input also allows a field accuracy check between calibrations where a traceable reference is available. 40 What protections should a tan delta kit have? Below protections are expected from a reputed Tan Delta KitEarth detection that prevents voltage being raised without a reliable earth.Over-current and short-circuit protection on the output, since a specimen can break down during a test.Over-voltage and supply-fluctuation protection on the input.Thermal protection.An emergency stop that removes the high-voltage output internally rather than merely disconnecting at a terminal, with an indicator showing whenever high voltage is live.These are what separate an instrument intended for substation work from one intended for a laboratory bench. 41 What support is provided after purchasing tan delta kit? Every instrument we supply comes with application support from the engineers who specified it, not from a call-centre script. That covers help interpreting a reading you are unsure about, guidance on the right test mode and connection for an asset you have not tested before, and support on site where the job needs it. Reach us on 0124 4001088 or support@kpmtek.com, 10 to 6PM 42 Do you help with the first test on site of tan delta kit? Yes, Online commissioning and training at the customer's site as part of supply. Each equipment supplied by KPM is backed by KPM’s support 43 What if I get a reading I do not understand on tan delta kit? Send the record to support@kpmtek.com with the asset details and the test conditions, and one of our engineers will go through it with you. This is the support customers use most — a result that looks wrong at six in the evening during a shutdown is not something to work through alone. Typical response: 1day 44 How quickly do you respond to a service request? Telephone / Whatsapp Support (Instantly / Depends on availability ), Email response within 24 working hours 45 Are spares and consumables available in tan delta kit? Yes — test leads, earthing leads, mains leads, printer consumables and fuses are generally stocked. Using the correct matched test leads affects measurement accuracy, so replacements should be ordered rather than substituted locally. 46 What warranty applies on tan delta kit? Every instrument we supply is warranted against defects in materials and workmanship for twelve months from the date of despatch. Within that period we repair or replace any unit that fails in normal service, at no charge to you. If something does go wrong, call us before opening the instrument. A good share of reported faults turn out to be a connection, a setting or a site supply problem that we can resolve over the phone the same day — and an instrument opened outside our works is no longer covered, so that call is worth making first. Where a unit genuinely needs to come in, we arrange the return and keep you posted on progress. Warranty covers failure, not damage. Physical damage, water ingress, repair or modification by anyone other than us, and consumables such as printer paper and fuses all fall outside it. One exclusion is worth knowing in advance because it is both common and entirely avoidable: supply voltage above the instrument's stated maximum causes permanent damage that no warranty covers. On a site with unstable or unregulated supply, measure before you connect.Calibration is a separate matter from warranty. A calibration certificate confirms the instrument reads correctly; the warranty covers it against failing. An instrument can be inside warranty and outside calibration, and it needs both to be worth anything on site.Support is not limited to the warranty period. Help with a connection, a test mode or a reading you are unsure about continues for as long as you own the instrument.

KPM Engineering ( A Leading S/S test equipment Company ) and Wellman Power ( A leading CT PT manufacturer ) collaborates to form a Development Center For Instrument Transformers ( DCIT ) with state of art test equipment and standards . It is an initiative to serve power sector @ www.kpmtek.com DCIT - Centre de développement des transformateurs de mesure KPM Engineering (Un équipement de test S/S de premier plan Company, desservant S/S jusqu'au niveau 765KV ) _cc781905-5cde-3194-bb3b-136bad5cf58d Le fabricant CT PT jusqu'à 132KV ) collabore pour former aCentre de développement des transformateurs de mesure ( DCIT ) avec un équipement de test et des normes de pointe. Il s'agit d'une initiative visant à servir Power Sector Customers avec des produits de qualité et de précision inégalés. DCIT se concentre sur trois aspects majeurs des transformateurs d'instruments 1) Conductor 2) Insulation_cc781905 -5cde-3194-bb3b-136bad5cf58d_ _cc781905-5cde-3194- bb3b-136bad5cf58d_3) Core Quelques domaines clés de la R&D en DCIT sont -: Caractérisation de la tension transformateurs de mesure dans des conditions non sinusoïdales Application des transformateurs de mesure dans l'évaluation de la qualité de l'alimentation Performances métrologiques de la tension et du courant transformateurs de mesure en mesures d'harmoniques Détection et correction des erreurs systématiques in transformateurs de mesure Entrer en contact