Potential Transformer (PT) testers are core precision devices for high-voltage testing, power system calibration, and energy metering verification. Whether for substation routine maintenance, power grid project acceptance, industrial power system debugging, or third-party metering calibration services, selecting a professional and reliable PT tester supplier directly determines test accuracy, project safety,…

Current Transformers (CTs) are the backbone of power system measurement, metering, and relay protection. Their operational accuracy and stability directly determine the safety, efficiency, and economic rationality of power generation, transmission, and distribution systems. Unlike traditional fixed-power-frequency CT testers, a Variable Frequency CT Analyzer delivers flexible frequency adjustment, high-precision measurement,…

Introduction On-site CT and PT testing in active substations is never a clean environment. High-voltage busbars, running transformers, switching surges, and new energy inverter noise constantly disrupt low-level secondary signals. For power utilities, transformer manufacturers, and third-party testing labs, this means one common headache: fluctuating ratio errors, drifting phase angles,…

For power system operators, transformer and transformer manufacturers, third-party testing laboratories, and new energy engineering companies, CT and PT accuracy testing is a mandatory, repetitive, and high-frequency workflow. A reliable economical CT PT analyzer balances precise testing performance, reasonable procurement costs, and low long-term maintenance expenses, making it the ideal…

Solution Overview The insulation performance of electrical equipment is directly linked to operational safety and system reliability. Over long periods of operation, insulation materials may degrade due to moisture, aging, contamination, overheating, or mechanical damage. Systematic and standardized insulation testing enables the timely detection of potential hazards, helping to prevent…

The insulation absorption ratio and polarization index are important indicators for evaluating the insulation performance of electrical equipment. Both reflect the insulation state by measuring the change in insulation resistance over time, but there are significant differences in test time, applicable scenarios, and diagnostic significance. The following is a detailed…

Recently, the Ministry of foreign trade reported another good news. Indonesia customers reached a cooperation with kvtester to purchase a batch of our equipment. This batch of equipment includes zc-501a-50kv oil immersed test transformer and zc-501a-150kv oil immersed test transformer. This batch of equipment has been fully produced, strict quality…

Recently, kvtester received an order for ZC-205c three-phase DC resistance tester. Our R & D department broke down the order according to the customer's requirements and functional requirements, designed and customized on demand, and carried out the R & D and improvement of ZC-205c three-phase DC resistance tester. After continuous…

"Foreign main engine manufacturers are expected to accelerate the pace of cooperation with domestic battery enterprises, and foreign power battery enterprises are expected to accelerate the transition to China in the second quarter." On April 21, Dr. Zhang Xiaofei, chairman of high tech lithium battery, speculated in the first live…