水力发电厂直流系统故障分析与处理

Direct Current System of Hydropower Plant Malfunction Analysis and Treatment

水力发电厂直流系统是控制系统、继电保护及自动装置的工作电源,是机组安全稳定运行的重要保证。通过对直流系统接地检测原理的比较,探索直流系统接地故障的查找分析方法,以及如何处理发电厂直流系统的接地故障等问题。本文从直流系统接地检测原理出发,结合具体案例探讨了运用现有检测手段对直流系统接地故障查找的可行性,对直流系统安全稳定运行具有重要意义。

The direct current system is a key equipment for control system,relay protection device and automatics in the power plant system, and also keep the units running safety and stable. By comparing the testing principle of the direct current system, we find the method about the earth fault, and how to handle the earth fault problem. In this thesis, the concrete analysis and particular case is used to optimization measure analysis. The results showed that, by this method the earth fault can be found quickly. There are important significance in the hydropower plant.