知识与财富的链接
目前,应用于国家电网特高压交流示范工程1 100 kV GIS设备有两种不同的技术方案:一种GIS设备是带合闸电阻的双断口断路器,隔离开关带电阻;另一种GIS设备则是带合闸电阻的四断口断路器,隔离开关不带电阻.笔者主要从气室压力、绝缘尺寸、灭孤单元的选择、断路器带合闸电阻的定尺、隔离开关的设计等方面介绍了两种不同技术方案,同时介绍了两种技术方案在特高压GIS和HGIS变电站的布置上的不同之处.结果表明,两种技术方案都有各自的特点,都可以满足特高压变电站在技术参数和布置结构等方面的要求.
There exist two technical solutions for a 1 100 kV GIS in the State Grid of China Ultra High Voltage AC Pilot Project.One adopting a double-break circuit breaker with a closing resistor,whose disconnector has a resistor;the other adopting four-break circuit breaker with closing resistor,whose disconnector has no resistor.This paper introduces the two technical solutions from such aspects as gas pressure,dielectric dimension,choice of interrupting units,specification of a circuit breaker with a closing resis...
