Abnormal noise from the DC resistance tester
When the transformer DC resistance tester is in normal operation, it will emit a continuous...
March 2026
hvhipot Potential drop method of ground resistance tester
To measure resistance, we use a ground resistance tester to apply a voltage between its...
Reasons for the change in insulation value
Reasons for the change of the insulation value when the insulation resistance tester performs the...
Rules for the use of DC high voltage generators
Rules for the use of DC high voltage generators: 1. The tester should be checked...
How to choose a relay protection tester
Flexible combination of voltage and current output, output up to six-phase voltage and six-phase current....
Why use a power quality analyzer
Power quality refers to the quality of AC power supplied to users through the public...
The core device of the DC resistance tester?
I. Overview The transformer DC resistance tester is based on a high-speed microcontroller, using high-speed...
Insulation resistance tester battery replacement
1. Battery inspection and replacement When the instrument is connected to the power supply, if...
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...