铁岭500kV系统取消断路器合闸电阻的过电压计算  

Overvoltage Calculation for Elimination of Closing Resistors in Tieling 500k V Power System

作　　者：施围[1] 牛晓民[1] 陈亚伦[2] 李志国[2] 

机构地区：[1]西安交通大学,710049 [2]东北电力设计院,沈阳110006

出　　处：《高压电器》1994年第5期27-31,共5页High Voltage Apparatus

摘　　要：计算了铁岭500kV系统中5条线路在不同年代、不同接线、不同运行方式下的工频过电压、潜供电流以及仅用不同型号MOA限制这些线路的合闸及重合闸(单重)过电压.This paper calculates the overvoltage in Tie -Ling 500kV system (including five 500kV lines) in different years ,with various connections and under all kinds of operation conditions. The result shows that temporary overvoltage level accords with SD 119-84 and secondary arc current of all lines meets the engineer-ing requirement, except Tie - Tong line. It also demonstrates that when closing and reclosing overvoltages are only limited by different type MO As, terminal switching overvoltage of each line is below 2.0 p. u, and the capacity of energy ab-sorbed in MOA leaves a wide margin .

关 键 词：断路器 过电压 电阻 计算 

分 类 号：TM561.03[电气工程—电器]