Usage and precautions of clamp ammeter
The clamp ammeter is an instrument that integrates the current transformer with the ammeter. Its...
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How about the dielectric loss tester?
Dielectric loss: energy loss caused by dielectric conductivity and hysteresis of dielectric polarization under an...
The function of relay protection device
The main function of the relay protection device is to automatically cut off the power...
Ground resistance detector reading
(1) in the detection of gas and liquefied petroleum gas station and high-rise buildings and...
Overheat treatment of resistance tester
The insulation resistance tester is a kind of transformer dc resistance tester which is small...
Why contact resistance testing?
The contacts in the circuit breaker need to be checked periodically to ensure normal operation...
Dc high voltage generator test procedure
The dc high voltage generator has the characteristics of large output power, small size and...
Operation method of large current generator
A large current generator (current lifter) is a separate or integrated structure based on the...
A digital megohm meter measures dc voltage
1. Transfer the dial to v. Some digital megohm meters (DMM) also include mv. If...
Large ground measurement analysis
When measuring grounding equipment, the error of the test results is large due to various...