Megohmmeter test
The megohmmeter test or insulation resistance pass test is a method that can be analyzed...
April 2026
Oil immersion test transformer leakage test
Operation steps of oil immersion test transformer leakage test: 1. Before testing, check whether the...
Notes on operation of DC resistance tester
Note for DC resistance tester: 1. Be sure to reset before measuring the reverse tapping...
Working Principle of Clamp Earth Resistance Tester
Working Principle of Clamp Ground Resistance Tester 1. Principle of resistance measurement The basic principle...
Several main points of test transformer test
Preventive tests of electrical equipment can be carried out through the following aspects. 1. Measure...
How to use the withstand voltage tester safely?
Although it is a trustworthy tester that is currently worthy of trust, it may cause...
Notes on differential test
1. The setting of balance coefficient: If the setting of balance coefficient is not correct,...
Precautions for three loop resistance tester
HTZZ-S20A three-circuit transformer DC resistance tester (hereinafter referred to as direct resistance instrument) is the...
How does DC resistance tester measure loop
The constant current series resonance circuit is mainly composed of a sampling circuit and a...
How to distinguish test transformer
There are five types of test transformers according to medium or structure: oil-immersed test transformer,...