Ground resistance continuity test
All Class I equipment undergoes this specific test to ensure that the connection between the...
March 2026
Detection process of loop resistance tester
The loop resistance tester is a special test equipment for measuring the contact resistance and...
Wiring work of loop resistance tester
The contact resistance and loop resistance of switch control equipment often need to be tested...
Dynamic characteristics of high voltage switch
High-voltage switches are also called circuit breakers, generally referring to electrical equipment with a rated...
Choose transformer: dry type and oil immersed type
Transformers are common and useful devices that receive high-voltage electricity directly from power stations and...
Introduction of three-loop DC resistance tester
After the test of the three-circuit DC resistance tester is completed, the transformer sometimes has...
Common problems of relay protection?
Why should one-point grounding and two-point grounding protection be installed in the excitation circuit? The...
Factors affecting test transformer
The main factors that affect the test results of the test transformer in the field...
DC high voltage generator test method
In the daily work process, power workers often need to use DC high-voltage generators. This...
Steps of DC withstand voltage test
The DC high voltage generator is mainly used for the DC withstand voltage and leakage...