Causes and hazards of partial discharge
1. The cause of partial discharge The so-called “partial discharge” refers to a discharge in...
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The role of DC resistance tester
The DC resistance measuring instrument determines the welding and connection quality of the lead wire...
How to use oil-immersed test transformer
In addition to the AC power frequency withstand voltage test, the oil-immersed test transformer can...
Troubleshooting of DC resistance tester
The DC resistance tester is often used in electrical work. This instrument is an ideal...
What is a dry test transformer?
The dry-type test transformer is a special step-up device dedicated to the AC withstand voltage...
Field test of loop resistance tester
Some common problems in field test of loop resistance tester: 1. The voltage wiring circuit...
Use high voltage test transformer
Precautions for using high voltage test transformer: 1. Connect the working circuit according to HV...
Precautions for the use of withstand voltage test
In the operation of power equipment, the insulation is subject to the effects of electric...
Method for measuring DC resistance of transformer
The method of measuring the DC resistance of a transformer is as follows: (1) Electric...
Calibration method of DC resistance tester
The DC resistance tester includes microprocessor management technology, and the measurement data accuracy requirements will...