摘要
通过ＥＭＴＰ程序计算了广州蓄能水电厂５００ｋＶ ＧＥＳ电气设备在雷电流沿导线侵入时产生的过电压，结果表明所产生的过电压低于设备的雷电冲击绝缘水平，证明了雷电侵入波并不是１号主变压器损坏的直接原因。
In view of the main transformers' faults in Guangzhou Pumped-storage Power Station, this paper, using the electromagnetic transient program (EMTP), calculates the over-voltage in gas insulated switchgear (GIS) when lightning invades through the two 500 kV lines. The results show that the over-voltage is lower than the lightning impulse insulation level of the equipment and the lightning was not the immediate cause of the transformers' faults.
出处
《广东电力》
2000年第2期22-24,共3页
Guangdong Electric Power
