Insulation resistance tester battery replacement
1. Battery inspection and replacement When the instrument is connected to the power supply, if...
March 2026
Operation of DC withstand voltage and leakage test
It is mainly used for DC withstand voltage and leakage test of zinc oxide arresters,...
Grounding resistance tester measuring method
The ground resistance tester is widely used in the measurement of the ground resistance of...
Precautions for testing transformer
1. When doing high-voltage test, two or more people must participate, and the division of...
The DC resistance tester exceeds its limit value
The DC resistance tester is mainly composed of precision small signal measurement circuit, high-power switching...
Three conditions of switching resistance source
A typical fHV Hipot Electric Co., Ltd.-wire measurement method is used. In order to improve...
Measuring time of DC resistance meter
Measuring DC resistance is an important item in transformer testing. Through measurement, it is possible...
Frequency response method test method
Series resonance Hertz power is a guide for you: the frequency response method test method...
Varistor and lightning protection resistance
The lightning protection standard resistance is used for the calibration of grounding resistance testers, equipotential...
Test method of battery charge and discharge tester
Discharge test procedure of battery tester: (1) Fully charge the battery first. (2) Adjust the...