An Idea and Method for Analyzing the Action of Complex Relay Protection
The analysis of protection action behavior is an important part of finding the cause of action,locking the fault location,dealing with equipment defects and restoring power supply.The article takes a 110 kV main transformer backup protection complex action case as an example to start the analysis,starting from the grid operation mode before the action,monitoring the timing of background message information,on-site testing and inspection of the state of the primary and secondary equipment,etc.,through the layer-by-layer analysis of the complicated protection action process,to analyze the reasons for the protection action,accurately locking the location of the fault,accurately evaluating the behavior of the protection action,and summarize the experience,summarize the ideas and methods of the analysis of the complex relay protection after action.The idea and method of analyzing after the action of complex relay protection is summarized by summarizing the experience.
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