变压器和应涌流对继电保护的影响及对策研究

Research on Influence and Countermeasure of Transformer Sympathetic Inrush on Relay Protection

针对变压器空载合闸或外部故障切除后电压恢复期间,可能会产生相关继电保护误动作问题,对变压器和应涌流对继电保护的影响及对策进行研究。分析变压器和应涌流产生的机理,利用Matlab/Simulink对变压器和应涌流进行仿真分析,探讨和应涌流对继电保护的影响,并提出防止继电保护误动作的解决策略。该研究可为相关继电保护研究提供参考。

In view of no-load closing or removal of external faults of the transformer in voltage recovery period, it may lead to malfunction problems of related differential protection, researches on influences and countermeasures of transformer sympathetic inrush on relay protection. Analysis of transformer sympathetic inrush generation mechanism and simulation analysis of transformer sympathetic inrush base on Matlab/Simulink, discussion on influences of transformer sympathetic inrush on relay protection and appropriate countermeasures of anti-malfunction of relay protection were proposed. This research provides reference to research of related relay protection.