| 一次直流系统接地故障分析 |
| |
| 引用本文： | 彭飞.一次直流系统接地故障分析[J].企业科技与发展,2011(11):24-26. |
| |
| 作者姓名： | 彭飞 |
| |
| 作者单位： | 梧州供电局,广西梧州543002 |
| |
| 摘 要： | 变电站直流系统是变电站二次设备的运行及保护装置得以正确动作的极其重要的保证。文章结合110kV变电站直流系统接地事件，详细分析了事件故障的排查过程，最后确认是由于变电站内刀闸操作机构控制电源不同及技术改造过程中施工不当等综合因素，导致交流系统窜入直流系统，致使直流系统对地绝缘下降。严重影响变电站二次系统的正常运行，并提出了具体的整改措施和设备技术改造过程中应注意问题。
|
| 关 键 词： | 直流系统 接地故障 隔离开关≯交流窜入直流 |
A Case of DC System Ground Fault |
| |
| Authors: | PENG Fei |
| |
| Institution: | PENG Fei ( Wuzhou Power Supply Bureau, Wuzhou Guangxi 543002) |
| |
| Abstract: | DC system of substation is the key guarantee to operate the secondary equipment and some protection devices. Connected with the ground fault of 110 kV substation DC system, the paper elaborates the inspection course of the accident and holds that because of operation switches that control different power and incorrect construction during technical transformation, AC system will influence DC system, which causes to lower ground insulation and affects the secondary system. Furthermore, the paper puts forward some improvement methods in detail and some problem should be marked during equipment technical transformation. |
| |
| Keywords: | DC system ground fault disconnector AC Intrusion into DC System |
| 本文献已被 维普 等数据库收录！ |
