Search Results

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 Często zadawane pytania 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

All type of electrical testing and commissioning services Usługi testowania Testowanie i uruchamianie Testowanie i uruchamianie wszystkich LV / HV / UHV tablice rozdzielcze rozdzielnice Kilka podstacji wewnętrznych i zewnętrznych Stacja w izolacji gazowej [GIS] w zakresie napięć 400V - 765KV Generatory SN/NN Transformatory mocy Motoryzacja Banki kondensatorów Reaktory Kable Izolatory Odgromniki CT, PT, CVT, Wyłączniki automatyczne NG, NGT, panele sterowania i przekaźników do generatora, Łącznik FBus, transfer magistrali i kontrola linii itp. Zapytaj nas Monitorowanie Pojemność i Tan Delta Analiza odpowiedzi częstotliwościowej przemiatania [SFRA] Częściowe rozładowanie Wykrywanie niedoskonałości rdzenia elektromagnetycznego [ELCID] Odchylenie klina Test RSO Porównanie przepięć Test DC Hi-Pot, rezystancja izolacji, wskaźnik polaryzacji. Zapytaj nas

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. ROZWIĄZANIA DO TESTOWANIA SYSTEMU ZASILANIA Cable LA Meter TRF Relay Machine Battery Testing GIS Circuit Breaker Tap Changer Monitor Testing EV Partial dischage CT/PT Earth testing

Benefiting world with INDO-EU partnerships, We are working in 1) Electrical t & m equipment 2) OEM services for Made In India electrical equipment 3) Sales & Purchase of Used / New M/Cs ( EU Origin ) all across the world . for detail visit us on http://www.kpmtek.eu MADE IN INDIA - OEM SERVICES CT , PT , Metering Cubicle , Isolators etc. TECH TIEUPS - POWER SECTOR Electrical Testing & Monitoring Solutions NEW / USED MACHINES - EU Printing M/C, Paper Converting M/C. etc. Korzyści_cc781905-5cde-3194-BB3B-136BAD5CF58D_ WORD_CC781905-5CDE-3194-BB3B-136BAD5CF58D_ with Ind USŁUGI OEM DO TRANSFORMATORÓW INSTRUMENTÓW ( DO 33KV ) Świadczymy usługi OEM dla klientów z regionu UE for Transformatory przyrządów (odlew olejowy i żywiczny, do 33 KV), izolatory, szafki pomiarowe i akcesoria do linii przesyłowych. Wszystkie nasze produkty są wytwarzane w najnowocześniejszych zakładach w Indiach z zachowaniem jakości na najwyższym poziomie. Każdy sprzęt wysyłany przez zespół KPM jest testowany zgodnie z wymaganiami testów fabrycznych IEC . Transformator instrumentu i wyposażenie. Mfg. - WELLMAN INDIE +48 539438443 sprzedaż@kpmtek.eu CT PT OEM MASZYNY UŻYWANE Z REGIONU UE Czy jesteś firmą chętną do zakupu używanych, niezawodnych europejskich maszyn technologicznych z regionu UE? Nie bez powodu jesteśmy pierwszym wyborem klientów takich jak ty ! Jesteśmy indyjską firmą zajmującą się dostawą wysokiej jakości starych maszyn z regionu UE do subkontynentu indyjskiego oferty w szerokiej gamie Maszyny fleksograficzne i offsetowe Maszyny do przetwarzania papieru, przyrządy i osprzęt Maszyny specjalnego przeznaczenia. Nasi konsultanci techniczni na stałe stacjonują w regionie UE, którzy świadczą usługi kontroli jakości używanych maszyn od zera. Nasi eksperci monitorują proces demontażu aż do etapu załadunku . W Indiach mamy doświadczony zespół do sprawnego uruchamiania i rozwiązywania problemów z dostarczonymi maszynami. Każda dostarczona przez nas maszyna jest objęta roczną gwarancją w REGIONIE SUBKONTYNENTU INDYJSKIEGO Skontaktuj się z nami już dziś i omów maszyny, których szukasz! INDIE WSPARCIE PARTNER - WEBTECH , producent wysokiej jakości drukowanie , przetwarzanie papieru i SPM . +48 539438443 sprzedaż@kpmtek.eu formularz zapytania Rozwiązania dla sektora energetycznego Powiązania technologiczne i korporacyjne KPM ma ogromne doświadczenie w sprzedaży i stosowaniu elektrycznych urządzeń testujących i pomiarowych zarówno wysokiego, jak i niskiego napięcia. Każde urządzenie dostarczone przez KPM Engineering jest sprawdzone w warunkach polowych. Nasze urządzenia do testowania podstacji są testowane w hałaśliwych warunkach LIVE EHV - UHV Switchyards (do 765KV) Jesteśmy aktywnie otwarci na dyskusje i poszukujemy rozwiązań korporacyjnych i technicznych Firma badawczo-projektowa z pewnym rozwiązaniem dla sektora energetycznego, szukająca powiązań technicznych. Użytkownik / dystrybutor chętny do sprzedaży / zakupu istniejących rozwiązań firmy KPM Testowanie i monitorowanie rozwiązań w regionie UE . Inwestorzy i współpracownicy +48 539438443 sprzedaż@kpmtek.eu USED MACHINES POWER SECTOR TIEUPS

KPM ENGINEERING SOLUTIONS is electrical test equipment provider with strong support. Our solutions are Relay Test Kit, CT/PT Analyzer, Oil BDV, Tan delta , Circuit Breaker Analyzer, LA Testing,Partial Discharge Test Kit, Thermal Imager Camera, PIK, SIK, AC/DC HIPOT. Visit us @ www.kpmtek.com O KPM W KPM zajmujemy się produkcją, handlem o wartości dodanej i usługami doradczymi. Współpracujemy z wiodącymi na świecie ośrodkami badawczo-rozwojowymi i produkcyjnymi na całym świecie, aby dostarczać naszym cenionym klientom najlepsze niezawodne rozwiązania. Od 1992 r. firma KPM Engineering Solutions jest a wiodącą firmą w dziedzinie doradztwa elektrycznego i , zaangażowaną zarówno w przywództwo, jak i rozwój. Jesteśmy dumni, że możemy przewodzić w kierunku bardziej wydajnej przyszłości dzięki innowacyjnym pomysłom, przełomowej technologii i przejrzystości. Pracowaliśmy nad dziesiątkami projektów, których celem było dostarczenie innowacyjnych rozwiązań inżynierskich. Jesteśmy grupą technokratów z dużym doświadczeniem w sprzedaży i zastosowaniach zarówno w przemyśle elektrycznym wysokiego napięcia, jak i niskiego napięcia T & M. przez ostatnie 1,5 dekady. Nasze doradztwo służyło szerokiemu spektrum klientów, w tym przemysłowi, szpitalom, osiedlom mieszkaniowym, instytucjom edukacyjnym, projektom zapór itp. W KPM dokładamy wszelkich starań, aby zapewnić naszym klientom precyzyjny sprzęt do właściwych zastosowań T & M, a następnie działać jako pierwszy punkt kontaktowy za każde wsparcie związane z produktem. W razie potrzeby nasz dział T&M i dział konsultingu wymieniają uścisk dłoni, aby świadczyć usługi o wartości dodanej, takie jak interpretacja wyników i analiza pierwotnej przyczyny awarii DUT (testowanego urządzenia). Skontaktuj się z nami Our Team. Our team is a fantastic mix of experienced and mid-level professionals who work together like a well-oiled machine. They bring a blend of wisdom and fresh ideas to the table, making them unstoppable as they tackle any challenge that comes their way. S.C.Sharma - Chairperson M.Tech. Elec. HBTI Kanpur , 1985 B.Tech. Elec. MNREC, Allahabad, 1974 S.C Sharma is an experienced electrical engineer with technical consultancy background of 40+ years. His guidance is followed by KPM at policy & administrative level Pankaj Modi - Country Sales Head BE Electrical, Dr. A.P.J. Abdul Kalam Technical University, Lucknow, 2004 Pankaj is a seasoned sales professional with almost 20 years of experience in the testing & measuring equipment , automation, and Industry 4.0, IOT solutions industry. He is managing sales of KPM products at all India level. He is supported by the team of techno-sales engineers Kunal Sharma - Sr Tech. Consultant M.Sc. Electrical, Warsaw University of Technology - Poland , 2024 B.E Electrical, MDU India, 2006 Kunal is a seasoned techno sales professional with 15+ years of experience in sales, application and technical support to power utility customers all across the globe. He was recently granted his M.Sc. with final research thesis on "partial discharge measurement techniques" . Kunal is responsible for customer's technical satisfaction and is supported by the team of techno-sales engineers He is also responsible for KPM's technology tieups all across the globe. KPM Promotes Lifelong Learning: Sr. Consultant Achieves Master's in Electrical Engineering We are delighted to announce that our Sr. Consultant Mr. Kunal Sharma has completed his Master's in Electrical Engineering, with a distinguished project on "Methods for Measurement and Detection of Partial Discharge." from Warsaw University Of Technology , Poland. This significant achievement highlights his dedication and expertise in the field. Anchor 1 NASZA DOŚWIADCZENIE W DZIEDZINIE JEST TWOIM ATUTEM

Advanced earth testing kits by KPM for precise ground resistance measurement, soil resistivity testing, and electrical safety compliance. BADANIE UZIEMIENIA / UZIEMIENIA Tester uziemienia - Metoda Spike Wiedzieć więcej Earth Tester (Spike Method) KPM -ET30K Earth Resistance & Soil Resistivity Tester is specially designed and manufactured for measuring earth resistance, soil resistivity, earth voltage &_cc781905-5cde-3194-bb3b- 136bad5cf58d_Napięcie AC. ET30K adopts the latest technology for precise 4-pole, 3 -pole and simple 2-pole measurement for earth odporność. importing FFT and AFC technology,_cc781905-5cde- 3194-bb3b-136bad5cf58d_ with a unique function of anti-interference capability and the ability to adapt to the_cc781905-5cde-3194- bb3b-136bad5cf58d_ environment, consistency of repeat testing,_cc781905-5cde-3194-bb3b -136bad5cf58d_ aby zapewnić wysoką precyzję, wysoką stabilność i niezawodność podczas długotrwałych pomiarów Tester uziemienia — metoda cęgowa Wiedzieć więcej Clamp Earth Tester (KPM-CET1200) is szeroko stosowany w pomiarach rezystancji uziemienia, loop pomiar rezystancji w dziedzinach takich jak electric_cc781905-5cde-3194-bb3b-136 , pole naftowe, architektura i przemysłowy sprzęt elektryczny itp. Podczas pomiaru systemu uziemienia za pomocą pętli nie ma potrzeba odłączenia uziemienia Drut bez pomocniczej electrode, co oznacza bezpieczniejsze i szybsze. Najważniejsze dane techniczne testera uziemienia Clamp (KPM-CET1200) Mierzy rezystancję uziemienia/rezystancję pętli Duży rozmiar szczęki (65 mm x 32 mm) Szeroki zakres pomiaru rezystancji (0,01 Ω do 1200 Ω) Szeroki zakres pomiaru prądu (0,01A do 20A) Idealny do testowania wzajemnie połączonych obwodów uziemiających, takich jak Uziemienie siatki, uziemienie siatki, uziemienie wieży transmisyjnej Tester uziemienia - Metoda Spike Wiedzieć więcej Earth Tester (Spike Method) KPM -ET30K Earth Resistance & Soil Resistivity Tester is specially designed and manufactured for measuring earth resistance, soil resistivity, earth voltage &_cc781905-5cde-3194-bb3b- 136bad5cf58d_Napięcie AC. ET30K adopts the latest technology for precise 4-pole, 3 -pole and simple 2-pole measurement for earth odporność. importing FFT and AFC technology,_cc781905-5cde- 3194-bb3b-136bad5cf58d_ with a unique function of anti-interference capability and the ability to adapt to the_cc781905-5cde-3194- bb3b-136bad5cf58d_ environment, consistency of repeat testing,_cc781905-5cde-3194-bb3b -136bad5cf58d_ aby zapewnić wysoką precyzję, wysoką stabilność i niezawodność podczas długotrwałych pomiarów Tester uziemienia online (GERM) Wiedzieć więcej Najnowocześniejsze urządzenie do monitorowania online stanu krytycznego systemu uziemienia Monitor rezystancji uziemienia sieci (Germ ) to stan urządzenia art, które Online monitoruje w czasie rzeczywistym wartość rezystancji uziemienia dołów uziemiających i uruchamia alarm, gdy wykryje jakąkolwiek awarię . Wszystkie informacje z witryny są bezpiecznie przesyłane na serwer za pomocą zaawansowanych metod komunikacji. Często zadawane pytania ( FAQ ) FAQ about Earth testing : 01 Difference between Clamp and Spike Method? Earth Resistance Testing: Clamp vs. Spike Method : The Clamp Method and the Spike (Fall-of-Potential) Method are two commonly used techniques for measuring earth resistance, each with distinct use cases. The Spike Method (also known as the three-point or fall-of-potential method) is considered the most accurate and is typically used during installation or scheduled maintenance when it’s feasible to disconnect the grounding system. It requires driving two auxiliary spikes into the ground at set distances from the earth electrode and measuring the voltage drop created by a test current. This method provides a true earth resistance value but is time-consuming, invasive, and requires open ground access. In contrast, the Clamp Method (or Stakeless method) is a quick, non-intrusive test ideal for live systems where disconnecting the earth rod is not possible. Using a special clamp meter, the method induces a test signal and measures current flow through parallel earth paths. It’s convenient and fast but is only applicable when multiple grounding paths exist (e.g., in mesh or grid systems). The Clamp Method does not provide accurate results for isolated earth rods or when there is only a single grounding point. In summary, the Spike Method is best for accurate baseline testing during commissioning, while the Clamp Method is ideal for routine checks on operational systems without disrupting service. 02 How to Ensure Compliance With Earth Testing in Renewable Sites? Ensuring Compliance with Earth Testing in Renewable Sites : To ensure safety and meet regulatory standards in solar, wind, or hybrid renewable energy systems, proper earth resistance testing is essential. Key Steps: Follow Standards: Comply with IEC 60364, IEEE 80, BS 7430, or local codes. Test Soil Early: Conduct soil resistivity surveys during design to select the right grounding method. Use Proper Methods: Apply the Fall-of-Potential method for commissioning and Clamp Method for periodic checks. Keep Records: Log all test data with method, instrument, and environmental details. Test Regularly: Schedule annual or biannual resistance tests to catch degradation early. Use Remote Monitoring (if available): SCADA or sensors can track resistance levels continuously. Train Personnel: Ensure field staff know correct testing procedures and safety protocols. Third-Party Verification: For audits or large projects, use certified inspectors for compliance reporting. 03 What will be seasonal Impact on Ground Resistance Measurements? Seasonal Impact on Ground Resistance Measurements Ground resistance values can vary significantly with seasonal changes due to environmental factors affecting soil conditions: Soil Moisture: During wet seasons (rainy or winter), soil moisture increases, lowering ground resistance by improving conductivity. Conversely, dry seasons cause soil to dry out, increasing resistance. Soil Temperature: Colder temperatures can increase soil resistivity as water in soil may freeze, reducing conductivity. Warmer temperatures generally improve conductivity. Soil Composition Changes: Seasonal changes in organic matter decomposition and salt concentration may also affect soil resistivity. Vegetation and Ground Cover: Plant growth during certain seasons can affect soil moisture retention and contact with grounding electrodes. Implications Testing during different seasons may yield varying results; hence, baseline measurements should be taken in both dry and wet conditions to understand worst-case scenarios. For accurate monitoring and compliance, schedule tests consistently or adjust acceptable resistance thresholds based on seasonal variation.

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 - Centrum Rozwoju Transformatorów Instrumentalnych KPM Engineering ( Wiodący sprzęt testowy S/S Company , obsługujący S/S do poziomu 765KV ) _cc781905-5cde-3194-bb3b-136bad5c Producent CT PT do 132KV ) współpracuje, tworząc aCentrum Rozwoju Transformatorów Instrumentalnych ( DCIT ) z najnowocześniejszymi urządzeniami i standardami testowymi. Jest to inicjatywa służąca Power Sector Customers z niezrównaną jakością i precyzją produktów. DCIT koncentruje się na trzech głównych aspektach Instrument Transformers 1) Conductor 2) Insulation_cc781905 -5cde-3194-bb3b-136bad5cf58d_ _cc781905-5cde-3194- bb3b-136bad5cf58d_3) Core Kilka kluczowych obszarów badań i rozwoju w DCIT to -: Charakterystyka napięcia przekładniki przyrządowe w warunkach niesinusoidalnych Zastosowanie instrument transformers in ocena jakości energii Właściwości metrologiczne napięcia i prądu instrument transformers w pomiarach harmonicznych Wykrywanie i korekcja błędów systematycznych w transformatorach instrument Skontaktuj się z nami

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 - Projects |https://kpmtek.wixsite.com/website/pl/pd-projects Projekty częściowego rozładowania Generating Sets at QEC, Vietnam PD & VW Test System for Surge Arrester at Siemens, China 15kVA/120kV PD & VW Test for Instrument Transformer at Xishang Electric 10kVA-120kV VW test for Electric Components at Hangzhou Yunuo Technology Shielding Room of PD and VW test for Switch Cabinet at Pinggao Electric Group Power Transfomer Comprehensive Tests for Power Transformer at Ningbo Gerace Electric 5kVA/150kV Digital PD test for 35kV Switch Cabinet at China Energy Engineering Group Partial Discharge Equipment for 35kV Dry type Power Transformer at Dongmeng Electric Partial Discharge Shielding Room for Power Transformer PD test at Dongfang Electronics Co., Ltd. 50kVA/50kV Power Frequency Voltage WIthstanding Test for Various Electrical Equipment at Shanghai El 150kV Partial Discharge & Voltage Withstanding Test for Switch Cabinet at ABB, China

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 Pojemnościowy dzielnik napięcia (bez PD)

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 Calibrator |https://kpmtek.wixsite.com/website/pl/pdcalibrator Kalibrator PD

Advanced EV battery testing solutions by KPM for service centers. Ensure precise diagnostics, battery health analysis, and efficient maintenance Rozwiązania do testowania akumulatorów pojazdów elektrycznych Testowanie i wyrównywanie komórek Kliknij teraz Konserwacja dużej mocy Kliknij teraz Badanie rozładowania HV Kliknij teraz Moduł / Pack Wyrównanie Kliknij teraz Anchor 1 Testowanie i wyrównywanie komórek 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 Testowanie i wyrównywanie komórek KPM LI80L Tester wycieku powietrza Tester szczelności akumulatorów Zobacz więcej KPM LI80L Tester wycieku powietrza Tester szczelności akumulatorów Zobacz więcej KPM LI80L Tester wycieku powietrza Tester szczelności akumulatorów Zobacz więcej KPM LI80L Tester wycieku powietrza Tester szczelności akumulatorów Zobacz więcej Anchor 3 Mierniki i inne 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 Miernik napięcia ogniw litowych AL-80L Battery Leakage Tester is the latest high-accuracy nondestructive testing equipment developed by KPM. KPM-24BV Miernik napięcia ogniw litowych AL-80H is the latest high-accuracy nondestructive testing equipment developed by KPM, with the highest sensitivity and stability in the new energy industry. Często zadawane pytania ( 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. ZESTAW TESTOWY ODGROMOWNIKA (LCM) Tester odgromników 1-fazowych online (z pomiarem napięcia i prądu) Katalog Tester odgromników firmy KPM (KPM LA-100+) to specjalny przyrząd służący do wykrywania właściwości elektrycznych odgromników (LA/MOSA). KPM LA-100+ is zdolność do testowania LA online przy użyciu pomiaru prądu upływowego LA i napięcia PT bezpośrednio dla najbardziej wiarygodnych wyników IEC . Cechy produktu of Test odgromnika (KPM LA-100+) Duży ekran LCD, menu użytkownika w języku angielskim, łatwy w użyciu. Korzystaj z technik precyzyjnego próbkowania i analizy harmonicznej Fouriera, aby uzyskać wiarygodne dane. Mierzy prąd rezystancyjny trzeciej harmonicznej , Całkowity prąd rezystancyjny , Całkowity prąd upływu ,_cc781905-5cde-3194-bb3b-136bad5cf58 Akumulator, zegar z kalendarzem, wbudowana mikrodrukarka, może przechowywać 120 grupowych danych pomiarowych Online 3 Ph LA Tester (z bezprzewodowym czujnikiem E i pomiarem prądu) Katalog KPM's 3-fazowy tester odgromników(KPM LA-103+) to specjalny przyrząd do wykrywania właściwości elektrycznych odgromników (LA/MOSA). KPM LA-103+ is zdolny do testowania LA online przy użyciu sześciu głównych metod zgodnie z IEC -: 1. Duży ekran LCD, pełna obsługa menu w języku angielskim, łatwy w użyciu. 2 Korzystanie z precyzyjnych obwodów próbkowania i przetwarzania, zaawansowane techniki analizy harmonicznej Fouriera w celu zapewnienia wiarygodności danych. 3. Instrument wykorzystuje sygnały napięcia i prądu bezpośrednio przechwytywane i wprowadzane przez unikalny szybki cyfrowy czujnik izolacji magnetycznej, aby zapewnić niezawodność i bezpieczeństwo danych 4. To urządzenie może wykorzystywać indukowane pole elektryczne lub metodę transmisji bezprzewodowej zamiast wtórnego okablowania PT. 5. Przyrząd nie musi łączyć wtórnego PT i może bezpośrednio mierzyć prąd rezystancyjny. 6. Istnieje sześć metod testowania, zapewniających wiele możliwości wyboru dla osoby na miejscu. ( PT metoda wtórna, metoda indukcyjna, metoda transmisji bezprzewodowej, metoda synchronizacji pojedynczego prądu, metoda synchronizacji wtórnej pt) Online 3 Ph LA Tester (z bezprzewodowym czujnikiem E i pomiarem prądu) Katalog KPM's 3-fazowy tester odgromników(KPM LA-103+) to specjalny przyrząd do wykrywania właściwości elektrycznych odgromników (LA/MOSA). KPM LA-103+ is zdolny do testowania LA online przy użyciu sześciu głównych metod zgodnie z IEC -: 1. Duży ekran LCD, pełna obsługa menu w języku angielskim, łatwy w użyciu. 2 Korzystanie z precyzyjnych obwodów próbkowania i przetwarzania, zaawansowane techniki analizy harmonicznej Fouriera w celu zapewnienia wiarygodności danych. 3. Instrument wykorzystuje sygnały napięcia i prądu bezpośrednio przechwytywane i wprowadzane przez unikalny szybki cyfrowy czujnik izolacji magnetycznej, aby zapewnić niezawodność i bezpieczeństwo danych 4. To urządzenie może wykorzystywać indukowane pole elektryczne lub metodę transmisji bezprzewodowej zamiast wtórnego okablowania PT. 5. Przyrząd nie musi łączyć wtórnego PT i może bezpośrednio mierzyć prąd rezystancyjny. 6. Istnieje sześć metod testowania, zapewniających wiele możliwości wyboru dla osoby na miejscu. ( PT metoda wtórna, metoda indukcyjna, metoda transmisji bezprzewodowej, metoda synchronizacji pojedynczego prądu, metoda synchronizacji wtórnej pt) Test teoretyczny piorunochronu Theory - LA Tester Piorunochron – Teoria Odgromnik to urządzenie stosowane w systemach elektroenergetycznych i systemach telekomunikacyjnych w celu ochrony izolacji. i przewodniki instalacji przed szkodliwym działaniem wyładowań atmosferycznych. Typowy odgromnik ma zacisk wysokiego napięcia i zacisk uziemienia. Gdy wyładowanie atmosferyczne (lub przepięcie przełączające) przemieszcza się wzdłuż linii energetycznej do ogranicznika, prąd z przepięcia jest kierowany przez ogranicznik, w większości przypadków do ziemi. Jeśli ochrona zawiedzie lub jej nie ma, piorun, który uderza w instalację elektryczną, wprowadza tysiące kilowoltów, które mogą uszkodzić linie przesyłowe, a także mogą spowodować poważne uszkodzenie transformatorów i innych urządzeń elektrycznych lub elektronicznych. Wytwarzane przez wyładowania atmosferyczne ekstremalne skoki napięcia w przychodzących liniach energetycznych mogą również uszkodzić elektryczne urządzenia domowe, dlatego jest to cholernie ważne dla integralności odgromnika. Obecnie monitorowanie całkowitego prądu upływu (prądów pojemnościowych i rezystancyjnych) jest wykorzystywane przez wiele zakładów energetycznych. Monitory prądu upływu służą do pomiaru prądu upływu ochronników przepięciowych, aw przypadku wysokiego prądu upływu ochronniki przepięciowe są wymieniane. Jednak uważa się, że ta metoda nie jest metodą niezawodną, ponieważ całkowity prąd upływowy, który jest czysto pojemnościowy, nie oznacza dokładnie stanu ograniczników przepięć. Zdarzały się przypadki, gdy ograniczniki przepięć wybuchały, mimo że całkowita wartość prądu upływu była poniżej limitu określonego przez producentów. Prąd rezystancyjny stanowi 15-30% prądu całkowitego, a ponieważ prądy pojemnościowe i rezystancyjne są przesunięte o 90 stopni, nawet znaczna zmiana prądu rezystancyjnego powoduje bardzo mały wzrost prądu całkowitego. Dlatego monitorowanie całkowitego prądu upływu może nie wskazywać na degradację krążka ZnO. Degradacja długiego liniowego krążka ZnO generalnie prowadzi do powstawania harmonicznych w prądzie upływu, gdy przyłożone jest napięcie systemowe o częstotliwości podstawowej. Pomiar rezystancji trzeciej harmonicznej polega na odfiltrowaniu składowej trzeciej harmonicznej z całkowitego prądu upływu. Prąd upływu rzędu około 500 mikroamperów jest ogólnie uważany za bezpieczny. Część rezystancyjną prądu upływu lub stratę mocy można określić kilkoma metodami podanymi poniżej: Używanie sygnału napięciowego jako odniesienia Kompensacja składowej pojemnościowej za pomocą sygnału napięciowego Kompensacja pojemnościowa poprzez połączenie prądu upływu trzech faz Analiza harmoniczna trzeciego rzędu Bezpośrednie wyznaczanie strat mocy Analiza harmonicznych trzeciego rzędu z kompensacją harmonicznych w napięciu Zaawansowany system monitorowania z obliczeniami składowych „prądu rezystancyjnego”. Zastosowanie zaawansowanych metod diagnostycznych znacznie zmniejsza ryzyko awarii, a tym samym pozwala uniknąć strat ludzkich i finansowych. Dlatego pożądane jest sprawdzanie stanu ograniczników przepięć w regularnych odstępach czasu, poprzez pomiar składowej rezystancyjnej ciągłego prądu upływu podczas pracy bez odłączania ogranicznika od napięcia. Wiarygodne pomiary są osiągane przez przyrządy oparte na zasadzie „sygnału napięcia” jako odniesienia. Regularne monitorowanie LA zapobiegło wielu awariom w stacjach od 66 kV do 765 kV. Wartości tego prądu zwykle wahają się od ułamków miliamperów do kilku miliamperów i charakteryzują się wahaniami prądu rezystancyjnego, których wartość jest wskaźnikiem zużycia ogranicznika przepięć. Składowa rezystancyjna tego prądu upływowego może wzrosnąć z powodu różnych naprężeń powodujących starzenie się i ostatecznie powodujących awarie ograniczników. Często zadawane pytania ( 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.