摘要
根据电力行业标准以及改进电气几何模型算法,对山西北部电网一起因雷击引起的220kV输电线路跳闸故障进行了分析计算,结果表明是一起典型的大电流绕击跳闸故障。并根据计算结果对两种算法进行了比较,进而提出改进措施,并用改进电气几何模型算法对改进措施进行了分析计算。
Based on the standard of Electric Power Industry and improved EGM, a lightning shielding failure of 220 kV transmission line of North grid of Shanxi was analysised and calculated, the result of which reveals that it is a typical high current shielding failure flash-over. The result was also compared with method from Electric Power Industry Standard, then a measure was put forward and analysised using improved EG-M method.
出处
《山西电力》
2010年第3期5-7,37,共4页
Shanxi Electric Power
关键词
改进电气几何模型
绕击跳闸率
电力行业标准
Improved EGM
shielding failure flash-over rate
Electric Power Industry Standard
