应用备自投装置简化内桥接线方案的技术探讨

Technical Discussion on using standby power supply auto-input unit to simplify inner-bridge connection mode

近年来在对110kV高压电缆接线时,为简化设备、压缩建筑面积,进一步降低工程投资,往往将110kV母线PT和线路PT合一。如果PT二次回路接线质量不高,就会造成备自投装置无法工作。文中对该问题进行了深入的探讨,并提出了较好的解决方法。

In recent years,during 110 kV high-voltage cable connection,to simplify equipment,reduce building area and further reduce project investment,110 kV busbar PT and circuit PT were often combined. If the secondary circuit connection quality of PT is poor,it will make the standby power supply auto-input unit impossible to work. The paper made an in-depth discussion on this problem and put forward good solution.