Withstand voltage test steps and result judgment
Pressure test steps for oil-immersed test transformers During the test, the following steps should be...
Dry-type transformer operating environment
Dry-type transformers are a kind of transformers. For the use of dry-type transformers, attention should...
Why is DC resistance not equal to AC resistance
1. From a microscopic point of view, many physical properties of media, including conductivity, permittivity,...
Electrical system grounding resistance
Electrical grounding: Grounding refers to the neutral point of the power system and electrical installations,...
Oil-immersed transformer insulation material
Commonly used insulating materials for oil-immersed transformers include insulating cardboard and transformer oil. Liquid insulation...
Three test methods of ground resistance tester
The ground resistance tester should be used in the ground resistance test. During use, not...
Differential protection of dry-type transformer
There are many types of dry-type transformer protection. For dry-type transformer protection, there is a...
The influence of dry-type transformer shell
If you carefully observe the dry-type transformer, you can see the shell of the dry-type...
Principle analysis of insulation resistance tester
Insulation resistance refers to the resistance between two parts of conductors separated by insulating materials,...
Transformer measuring short-circuit impedance
To measure the short-circuit impedance of a transformer, a special instrument is needed. Transformer low-voltage...