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2024
Transformer Impact Closing Test

Transformer Impact Closing Test

I. The impact closing test of the transformer does not necessarily have to be conducted from the high voltage side, which is related to the application of the transformer. Generally, this test is combined with the operation of the transformer. Since most of the transformers we use are step-down tran

2024
What Are the Causes of Damage to Transformer Winding Insulation?

What Are the Causes of Damage to Transformer Winding Insulation?

The winding is the heart of the transformer and the core of the transformer transmitting and converting electrical energy. Reliable winding insulation is the basic guarantee for the long-term safe operation of the transformer. Winding insulation becomes particularly important for high voltage transf

2024
Analysis of Abnormal Grounding Current in Transformer Core

Analysis of Abnormal Grounding Current in Transformer Core

I. Causes of multi-point grounding faults in transformer iron cores1) The iron core is connected to the outer shell. Loose displacement of the iron core and metal components left at the lower part of the iron core (such as screw caps, metal powder and wires from the grinding of submersible pump bear

2024
What requirements does high-quality transformer oil need to meet

What requirements does high-quality transformer oil need to meet

1. The viscosity should be moderate. If it is too high, it will affect convective heat dissipation, while if it is too low, it will lower the flash point.2. The density of transformer oil should be kept as low as possible to facilitate the precipitation of moisture and impurities in the oil.3. The f

2024
The American customer has sent feedback on the use of HZZGF-Z DC hipot tester from Huazheng Electric

The American customer has sent feedback on the use of HZZGF-Z DC hipot tester from Huazheng Electric

Recently, a US customer of Huazheng Electric used HZZGF-Z DC hipot testeron site and sent us feedbackIt is understood that HZZGF-Z DC hipot testerfrom Huazheng Electric is a high-voltage testing equipment widely used in power generation and supply departments, transmission and transforma

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