750kV变压器三相绕组参数不对称对完全对称系统过电压的影响  

The Impact of 750kV Transformer Three-phase Winding Parameter Asymmetry on Overvoltage of the Symmetrical System

作　　者：马振祺[1] 温定筠[1] 潘臻[1] 王津[1] 江峰[1] 

机构地区：[1]国网甘肃省电力公司电力科学研究院,兰州730050

出　　处：《电气技术》2016年第2期67-71,92,共6页Electrical Engineering

摘　　要：750k V变压器作为750k V电网中的重要设备,在电网安全运行中发挥着重要作用。本文通过分析750k V变压器三相绕组参数不对称产生原因,以西北某750k V输电系统为模型,应用电磁暂态仿真计算程序(ATP-EMTP),重点研究了在几种典型操作方式下,三相绕组参数不对称对系统操作过电压的影响。750kV transformer is important in 750kV power grid and plays a major role in safe operation of power grid. The paper analyzes the causes of asymmetric three-phase winding parameters of 750kV transformer and establishes research model of Northwest 750kV transmission system, applies electro-magnetic transient simulation program to focuses on the impact of operating overvoltage caused by Three-phase Winding Parameter Asymmetry through several typical operating modes.

关 键 词：变压器 绕组参数 不对称 过电压 

分 类 号：TM403.2[电气工程—电器]