短路暂态过程对距离保护的影响

The Effects of Short-Circuit Transient Process on the Distance Protection

电力系统短路暂态过程对距离保护的影响,与短路过程中出现的暂态分量、保护的工作原理、继电器的型式等一系列因素有关。本文就短路暂态过程中各种暂态分量产生的原因及对距离保护的影响,进行了详细地分析和讨论,从而得出影响距离保护正确工作的因素,以及减轻其不利影响应采取的措施。

Effects of short-circuit transient process on distance protection are dependent on various facts such as transient components occured in short-circuit process, operation principle of the protection system, types of relays applicated in the system and so on. This paper deals with the causes for occurrence of transient components when short-circuit process develops and the effects of these components on distance protection, with some means for mitigating the effects proposed.