How to distinguish test transformer
There are five types of test transformers according to medium or structure: oil-immersed test transformer,...
April 2026
Megohmmeter insulation test
Most preparations for measurement are related to work safety. All operations must be performed carefully...
The necessity of battery internal resistance test
The internal resistance is currently recognized as the most effective and most convenient performance parameter...
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...
Research background of DC resistance tester
Small resistance can be seen everywhere in various electrical equipment, such as the contact resistance...
What are the pitfalls of megohm meter operation?
Abstract: For the measurement of the insulation value of a 10kV transformer, ZC series portable...
How to choose the insulation resistance tester
The user can choose the suitable high-voltage insulation resistance tester according to the characteristics of...
Analysis of Clamp Earth Resistance Tester
Reducing the grounding resistance of the power line pole tower can improve the lightning resistance...