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目前在电力系统中大量采用了双微机线路保护配合使用的模式,在内蒙古220kV电网中普遍采用都是不同厂家的保护,多数是一套南瑞和一套四方,因为如果两套重合闸动作时间有先后,容易造成开关在短时间内两次重合,不利于安全运行。为了避免两次重合的危险,根据有关要求重合闸采用两套功能把手都投入,而出口压板只投入其中一套。从而对于不同厂家的两套重合闸是否能很好地配合工作是一个很重要的问题。本文对220kV线路配备RCS931B保护和CSC 103B保护的两套重合闸在配合应用中易被忽视的一个问题进行简要分析。
Currently in the power system, a large number of pairs of microcomputer lines used in conjunction with the protection of the model used in Inner Mongolia 220kV power grid are generally used by different manufacturers to protect the majority of a NARI and a set of Sifang because if the two reclosing action time There are successively, it is easy to cause the switch to overlap twice in a short time, which is not conducive to safe operation. In order to avoid the risk of two coincidences, according to the relevant requirements of reclosing with two sets of functional handles are put in, and the export of pressure plate into only one of them. Thus it is a very important issue whether the two sets of recloser from different manufacturers can work well with each other. This article briefly analyzes a problem that two sets of recloser with 220kV line equipped with RCS931B protection and CSC 103B protection are easily neglected in cooperation application.