Causes and treatment of floating potential
Important causes and treatment and management methods of high-voltage test transformer suspension potential Reason: The...
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Troubleshooting of Insulation Resistance Tester
Detection method: the unbalance rate of three-phase DC resistance greatly exceeds 4% or a certain...
Principle of Insulation Resistance Test
Insulation resistance refers to the resistance between two parts of conductors separated by insulating materials,...
Common faults of transformer capacity tester
Common troubleshooting 1. No display when power on: power off first and open the fuse...
Reasons for excessive circuit breaker resistance
Test standards for circuit resistance of high-voltage circuit breakers and the reasons for excessive resistance....
How to set the DC high voltage generator
The instrument generally meets the DC withstand voltage test of cables below 220KV voltage level...
Common fault treatment of DC resistance tester
The DC resistance tester often has the following faults: the pointer of the ground resistance...
Difference in insulation and ground resistance
The difference between insulation resistance and ground resistance: Insulation resistance is to test the degree...
Disadvantages in the test of DC resistance tester
Disadvantages in the field test of the DC resistance tester: 1. Problems with existing test...
Several reasons for transformer burning
1. Overvoltage 1. Suffered from lightning, most of the high and low voltage control circuit...