建设初期500kV主接线可靠性分析论证

目前 50 0kV变电所主接线采用 1个半断路器接线已得到国内电力同行们的一致认同。而对于 50 0kV变电所在建设初期采用何种主接线 ,通过工程实践和理论分析认为 :对于 2线 1变 ,采用方案 1,即线路 -变压器 (2台断路器 )接线 ,主变停运时间最短 ,停运率最低 ,投资最少 ,是一个既安全可靠 ,又经济合理的接线方案 。

Analysis and Demonstration of Reliability of 500 kV Main Wiring at the First Stage of Construction

At present application of one and a half circuit breaker connection f or the main wiring at 500 kV substation has been identified by the colleagues in domestic power industry. The main wiring to be adopted for 500 kV substation at the first stage of construction should be the scheme 1(2 lines 1 transformer), that is, connection of line to transformer (2 circuit breakers), which has been proved through engineering practice and theoretic analysis. Because the shutdown time of the main transformer is the shortest, shutdown rate is the lowest and t he investment is the least, the wiring scheme is safe, reliable and economic.