模拟短路试验核对变电所保护极性的方法探讨

Discussion on Simulation Short Circuit Test Method for Verification of Protection Polarity of Substation

近几年,因保护回路接线错误造成保护拒动、误动的事件频发。通过实际案例,从理论、实际多角度分析故障发生的原因,提出一种新型短路试验方法,并应用于实际验证其可靠性,以期为变配电设备运维、新线开通提供参考。

In recent years,incidents of failure of protection and misoperation have occurred frequently due to incorrect wiring of protection circuits.Through practical cases,on the basis of the analyzing the causes of faults from both theoretical and practical perspectives,a new short-circuit test method is put forward,and it is applied in practice to verify its reliability so as to provide reference for the operation and maintenance of substation and distribution substation equipment and the putting into operation of the new lines.