Testers who have conducted insulation tests on water-cooled generators on site know that the insulation resistance test of a generator in a shutdown state is never purely a measurement of dielectric insulation, but rather a contest with the "parasitic circuit" of the water-cooled circulati
In many remote outdoor sites where newly built substations have not yet been powered on or have power outages for maintenance, searching for a usable 220V maintenance power socket often requires pulling a temporary cable reel of hundreds of meters, which not only slows down the maintenance pace, but
The most painful part of conducting a 10 hour rate battery capacity discharge test at a substation is staying up late on duty: starting to discharge during the day, it often takes until midnight or even early morning to complete the discharge. Under traditional operation, the tester must stay on sit
In the SF6 equipment inspection reports of substations, two units often appear simultaneously: dew point temperature (°C) and moisture content (μl/l or ppm). For the same instrument, these two values refer to the same thing but are expressed differently. Understanding the relationship between them
HZJF-9041D adopts the pulse current method (compliant with IEC 60270 standard), which is currently the most classic, accurate, and only quantitative measurement method with international standards in partial discharge detection. By understanding the path of transmitting signals from the inside of th
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