How to use the withstand voltage tester safely?
Although it is a trustworthy tester that is currently worthy of trust, it may cause...
Technical Guide
Notes on differential test
1. The setting of balance coefficient: If the setting of balance coefficient is not correct,...
How to distinguish test transformer
There are five types of test transformers according to medium or structure: oil-immersed test transformer,...
Megohmmeter insulation test
Most preparations for measurement are related to work safety. All operations must be performed carefully...
Precautions for three loop resistance tester
HTZZ-S20A three-circuit transformer DC resistance tester (hereinafter referred to as direct resistance instrument) is the...
How to measure ground resistance
There are two important parameters in the grounding device: 1. Grounding resistance value; 2. Grounding...
How does DC resistance tester measure loop
The constant current series resonance circuit is mainly composed of a sampling circuit and a...
Usage of clamp type earth resistance tester
There are many ways to use the clamp-type grounding resistance tester. How to use the...
Switchgear partial discharge detection method
Partial discharge analysis technology Specifically, commonly used partial discharge analysis technologies include the following: First,...
How to use megohm meter correctly
Megohmmeter is also called shaking table or insulation resistance tester. It is a simple and...