一起10kV线路跳闸扩大至接地变保护动作事件分析

Analysis of a Case for the 10kV Feeder’s Tripping Expands to the Grounding Transformer Protection Action

随着社会发展,用户对供电可靠性要求越来越高,供电企业需不断提高供电可靠性管理。10kV线路直接与用户相连,如何保证10kV线路连续可靠供电是供电企业必须解决的问题。由于10kV线路运行环境较差,故障跳闸概率较高,当10kV线路故障跳闸后,如何快速隔离故障设备,恢复用户送电,是考验供电企业管理水平的一项重要指标,关系供电企业形象问题。就一起10kV线路跳闸扩大至接地变保护动作处理过程进行分析,探讨10kV线路跳闸的处理模式,为10kV线路跳闸快速处理提供参考。

With the development of society, the power supply reliability has become important gradually, the power supply enterprise needs to improve the reliability of power supply management. Because of the lOkV feeder connects to the user directly, the power supply enterprise must solve the problem of the continuous and reliable power supply. Due to poor operating environment, the probability of the 10kV fecder＇ s tripping is much higher. When the lOkV feeder has tripped, it＇ s an important indicator for the power supply enterprise to isolate the faulty device and resume the power supply for the user. This treatise analyzes a case for the lOkV feeder＇ s tripping expands to the grounding transformer protection action, investigates a method to the deal with the lOkV feeder＇ s tripping.