Preparation for insulation resistance tester
The insulation resistance tester is used to measure the insulation resistance of insulating structural materials,...
March 17, 2026
High voltage test for current limiting resistor
The purpose of the DC high voltage generator test is mainly to check whether the...
Technical Problem of Circuit Breaker Tester
1. When the on-site instrument is used to control closing and opening operations, the switch...
Precautions for partial discharge detection test
The partial discharge detector is used to detect the partial discharge series resonance in medium...
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....
Causes and treatment of floating potential
Important causes and treatment and management methods of high-voltage test transformer suspension potential Reason: The...
Troubleshooting of Insulation Resistance Tester
Detection method: the unbalance rate of three-phase DC resistance greatly exceeds 4% or a certain...
Several reasons for transformer burning
1. Overvoltage 1. Suffered from lightning, most of the high and low voltage control circuit...