Voltage transformer is important electrical equipment in power system,which plays pivotal role in the meas-urement of line voltage,power and protection and the connection of motors to the grid.Faults caused by secondary wiring errors of voltage transformers often occur during the operation of newly built and retrofitted power stations.This paper analyzes the cause of abnormal voltage display after changing transformer's connection mode,and reports the effective countermeasures adopted.
关键词
电压互感器/接线方式/变频起动
Key words
voltage transformer/wire connection scheme/varying frequency starting
维普
万方数据