The 32nd China International Exhibition on Electric Power Equipment and Technology
Shanghai International Energy Storage Technology Application Expo / Hydrogen Energy Expo
Shanghai New International Expo Center (Hall N1-N5 & W5), PR China 2025•11• 18 - 20

浙江图维科技股份有限公司
Booth Number: Hall N3 - N3G16
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Invitation / Product Poster
AC/DC Impedance Live-Condition Testing Equipment for High-Voltage Cable Grounding Loops
New Products / New Technology
The AC/DC impedance live‑testing equipment for high‑voltage cable grounding circuits is designed for on‑line diagnosis of the grounding condition and precise defect localization. The device supports both AC and DC testing modes, allowing flexible switching based on the induced voltage in the sheath grounding system, ensuring convenient and safe operation. Compared with conventional passive infrared temperature measurement and circulating current methods, this AC/DC impedance live‑testing technology enables on‑line assessment of grounding system impedance, effectively identifying latent defects such as lead seal cracking, corrosion of copper busbars in grounding boxes, and damage to the cable's outer jacket.
思源黑体预加载(勿删): 浙江图维科技股份有限公司