500kV变压器相间后备保护探讨  

Discussion on phase to phase backup protection for 500kV transformer

作　　者：张洪[1] 常凤然[1] 赵春雷[1] 

机构地区：[1]河北电力调度通信中心,河北石家庄050021

出　　处：《继电器》2000年第7期12-15,共4页Relay

摘　　要：通过分析 50 0kV变压器高、中压侧相间阻抗保护对其低压侧相间故障的保护能力 ,阐述了变压器低压侧相间故障保护配置的必要性 ,并对保护的配置方式提出了建议。The necessity of installing phase to phase fault protection on LV side of transformer is presented in this paper by analyzing the protection capability of phase to phase impedance protection on HV and MV sides of 500kV transformer against phase to phase fault on its LV side. It also gives some advice on the arrangement pattern of the protection as well.

关 键 词：单相式变压器 相间后备保护 电力系统 继电保护 

分 类 号：TM4[电气工程—电器]