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...
Microcomputer relay maintenance tester
The main object of microcomputer relay protection and maintenance testing machine is the relay protection...
Operation method of large current generator
A large current generator (current lifter) is a separate or integrated structure based on the...
Large ground measurement analysis
When measuring grounding equipment, the error of the test results is large due to various...
Microcomputer relay protection device
Microcomputer protective device to electromagnetic interference protection measures are taken, substation, electromagnetic protection to the...
A digital megohm meter measures dc voltage
1. Transfer the dial to v. Some digital megohm meters (DMM) also include mv. If...
Select the appropriate circuit breaker tester
The circuit breaker tester is used to check the operation and condition of circuit breakers...
Operation of insulation resistance tester
Insulation diagnosis is an important means of detecting insulation defects or faults of electrical equipment....
Field test method of ground resistance tester
The ground resistance tester is a portable ground resistance tester equipped with the necessary test...