摘要
线路绝缘子发生覆冰闪络故障,对线路安全运行造成了威胁。绝缘子发生冰闪的主要原因是冰凌桥接绝缘子串裙边,而融冰水电导率高,则造成冰闪电压大为降低。阻隔导电率高的融冰水形成闪络通道的水帘,是提高覆冰绝缘子串冰闪电压的基本措施和方法。
The menace of transmission line safe operation is the ice flashover accident of transmission line insulator. The cause of insulator ice flashover is the ice bridge. But the melting ice water of high electric conductivity reduced ice flashover voltage. Separating the water curtain of the melting ice water is the measure and method of raising ice insulator flashover voltage.
出处
《电力设备》
2003年第5期32-34,共3页
Electrical Equipment
关键词
绝缘子串
融冰
闪络
污秽
冰闪电压
insulator chain
melting ice
flashover
pollutant
