电力直流系统中绝缘故障的分析研究

Analysis and Study on Insulation Failure in the Power DC System

在电力系统当中,直流电源应用的场所是越来越多,不仅有变电站和发电厂,还有通信部门、计算机房、医院、矿井、宾馆以及高层建筑等。其主要作为直流控制保护电源和合闸操作电源使用,负荷种类较多,导致了整个直流系统网络分布较广和工作环境比较恶劣的特点,因此较易出现绝缘降低的问题。本文就直流系统的绝缘故障展开分析讨论,并提出一些建议。

The application of DC power supply is more and more in the-power system. Not only in transformer substations and power plants, but also in communications, the computer rooms, hospitals, mines, guesthouses and high-rise buildings, etc. The DC power supply, whose loads＇ types are so many, is used as control and protection power supply and used as switchin operational power supply. So the network＇s distribution is extensive of the total DC system, and whose working condition is poor. As a result, the insulation fault is easier to come out. This text gives a discussion and an analysis on the insulation fault of DC system, and it makes some suggestions.