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