Use of microcomputer relay protection tester
The microcomputer relay protection tester is an important power testing instrument to ensure the safe...
February 6, 2026
Interference in partial discharge test
Before the partial discharge test, the transformer should be vented and allowed to stand for...
Loop resistance tester to test contact resistance
In order to ensure the safety of the circuit operation, we need to accurately measure...
Relay protection and overcurrent protection
Relay protection is a very important test in power system testing. It is an important...
The purpose of contact resistance test
During the operation of the circuit breaker, it is not only subject to mechanical force,...
The use effect of ground resistance tester
Since the ground resistance tester is to test the ground resistance of the circuit, it...
Use of insulation resistance tester
Insulation resistance testers are usually called megohmmeters or megohmmeters. It can be widely used to...
Partial discharge tester waveform
The principle of the partial discharge tester is the pulse current method principle, that is,...
How to reduce the DC resistance tester
How to reduce the measurement time of a DC resistance tester Measuring DC resistance is...
Loop resistance tester to find resistance voltage
If there is a problem with the resistance voltage of a device, there is no...