不对称断线故障对继电保护的影响分析

Analysis of the influence of asy mmetrical disconnection fault on relay protection

不对称断线故障是继电保护领域研究较少的问题,通过对该类故障的分析,可知一次侧断线会影响变压器保护和发电机保护,电压互感器二次侧断线可能会使电压量相关保护误动,以此为基础可以进一步提高保护原理的完备性和整定的可靠性。

Asymmetrical disconnection fault is a less researched problem in the field of relay protection. Through the analysis of this type of fault, it can be obtained that the primary side disconnection can affect the transformer protection and generator protection, and secondary side disconnection of the voltage transformer may cause malfunction of voltage-related protection.The conclusion can further improve the completeness of the protection principle and the reliability of the setting.