水电厂继电保护的故障诊断研究

Fault Diagnosis of Power Plant Relay Protection

在水电厂实际运行的过程中,经常会因为外界因素而出现故障。这时,如果继电保护系统不能及时、准确地切除故障电路元件,就很有可能会使得其他保护装置出现错误动作,扩大故障影响范围,降低电网的运行安全性和可靠性。简要叙述了继电保护隐藏故障,并提出了水电厂继电保护故障诊断方式。

In the course of the actual operation of the hydropower plant, often fails because of external factors. Then, if the system can＇t relay timely and accurate removal of fault circuit elements, it is likely to make other protective devices malfunction occurs, expanding the scope of failure, reduce operational safety and reliability of the grid. A brief description of the hidden fault protection and fault diagnosis is proposed hydropower plant protection methods.