220 kV变电站变压器运行分析及继电保护策略研究

Analysis of Transformer Operation and Research on Relay Protection Strategies in 220 kV Substation

在220 kV变电站运行中,常常会出现部分运行问题,导致电力资源无法满足人们工作、生活实际需求。为保障变电站边电压器安全稳定运行,阐述220 kV变电站运行,然后给出变压器故障问题与变电器继电保护策略,借助复压过流保护、零序过流保护及间隙保护等措施实现对220 kV变电站变压器的保护,提高变电站稳定性、安全性。

In the operation of 220 kV substation,some operation problems often occur,resulting in power resources unable to meet the actual needs of people′s work and life.In order to ensure the safe and stable operation of substation side voltage devices,the operation of 220 kV substation is described,and then the transformer fault problem and transformer relay protection strategy are given.With the help of complex voltage overcurrent protection,zero sequence overcurrent protection and gap protection,the protection of 220 kV substation transformer is realized,and the stability and safety of substation are improved.