变压器过励磁保护误动作的探讨

Discussion on Mal-operation of Transformer Over-Excitation Protection

针对陕西电网近年来330 kV变压器过励磁保护发生的多起误动作,分析了其误动作的原因,提出了当前变压器过励磁保护运行中应采取的措施,并对变压器过励磁保护动作原理的改进进行了讨论。

In recent years many malfunctions occurred in over-excitation protection of 330kv transformer of Shaanxi power grid,this thesis analyses the situation of malfunction, bring forward the emergency measures in over -excitation protection of present transformer, and make a discussion on improving the principle of over-excitation protection.