特高压变压器保护简述

Discussion on Ultra-high Voltage Transformer Protection

阐述了特高压变压器的结构不同于500 kV变压器结构,采用中性点调压方式,增加了独立的调压变压器部分。详细介绍了特高压变压器一次结构的新特点以及相应的二次保护配置的变化情况,具体分析了主体和调压变压器及补偿变压器主保护、主体后备保护、非电量保护的配置和特点。

UHV transformer＇ s structure is different from 500 kV transformer＇, which adopts neutral point voltage regulating method, and adds the independent voltage regulating transformer. The cbaracteristic of UHV transformer structure and variety instance of second protection configurarion are introduced, and the configuration and characteristic on primary protection of main body transformer and voltage regulating transformer and compensating transformer, and back-up protection of main body transformer, and non-electric-parameter protection are analyzed.