The transformer is the essential equipment in the electrical power system. Its breakdown might bring the serious influence to the power supply reliability and the system safely operation.At the same time the large capacity power transformer is the extremely precious equipment. Therefore.We must install the reliable relay protection installment according to the transformer capacity rank and the important degree.
The article is about the relay protection of the transformer.I had consulted many experts and teachers before I finished the article.At the same time the massive specialized materials was consulted by me.
It is not diffcult to understand the logical organiztion of the article for readers. And the article will bring the usful help to the comrades who is working as a electrical engineer.
Keywords Power System Fault Condition, Power Transformer, Relay Protection, Setting Calculation