Wuhan HKV test Electrical Equipment Manufacturing Co., Ltd
Wuhan HONGZHI High-Voltage Measurement Electrical Technology Co., Ltd. takes its name from the lofty ideal of "the ambition of a swan". Since its establishment in 2010, we have been deeply engaged in the power industry for 16 years. We are a high-tech enterprise specializing in the R&D, production, sales and supporting services of power testing instruments, and have also expanded into the new ...
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18/06/2026
How to Perform AC Withstand Voltage Testing Using an Oil-Immersed High Voltage Test Transformer (Field Application Guide
Introduction AC withstand voltage testing is a fundamental insulation verification method widely used in power systems, electrical manufacturing, and substation commissioning. It is designed to evaluate whether electrical equipment can safely operate under overvoltage conditions without insulation ...
How to Perform AC Withstand Voltage Testing Using a Variable Frequency Series Resonance System
How to Perform AC Withstand Voltage Testing Using a Variable Frequency Series Resonance System Introduction AC withstand voltage testing is one of the most important insulation verification methods in high-voltage power systems. It is widely used in substations, power plants, and transmission ...
220kV Substation Cable AC Withstand Voltage Test Case Using Series Resonance System
220kV Power Cable AC Withstand Voltage Test in Substation 1. Project Background In modern power transmission systems, 220kV high-voltage cables are widely used in urban substations and long-distance power delivery networks. Before commissioning, these cables must undergo strict AC withstand voltage ...
Remote-Control Cable Piercing Test for Underground Power Cable Maintenance
Project Background In August 2025, a cable piercing test was carried out in Panlongcheng Economic Development Zone for an underground power cable modification project. Due to local subway construction, the existing cable lines needed to be upgraded and modified. According to safety regulations, the ...