 HomeNewsTransformer iron core correct grounding method and multi-point grounding fault diagnosis method

Transformer iron core correct grounding method and multi-point grounding fault diagnosis method

2022-03-04

The transformer is the core equipment in the power system and plays a key role in the power supply and distribution enterprise.Once the transformer fails,it will greatly affect the safe and stable operation of the system.This article will be a common fault of the transformer-the multi-point grounding of the Iron Core.Speaking in detail from the three aspects of diagnosis,analysis,and elimination,the reader will eventually learn a little about transformer knowledge.

Transformer core multi-point ground fault will directly lead to overheating of the transformer core,burning the coil.Because the iron core is grounded at multiple points,a circulation will be formed at these points,resulting in local overheating.The long-term operation will cause the iron core to heat,so the transformer can only be grounded at one point.The multi-point grounding of the iron core is divided into two types,one is multi-point grounding of core instability,and the other is multi-point grounding of core stability.It is necessary to study the multipoint grounding of the transformer core.

From the defects of the Harbin Electric Power Bureau's internal faults and discoveries in recent years,basically there are two aspects:First,the DC resistance of the transformer coil is unqualified,and the transformer core is grounded at multiple points.

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 HomeNewsTransformer iron core correct grounding method and multi-point grounding fault diagnosis method

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