Study about synchronization brake function principle and type fault in the transformer substation

As for the integrated automation transformer substation measure-control device,the paper expounds the function principle of its manual operated synchronization brake and the setting principle of synchronization condition.Then it analyzes the secondary-loop principle of manual operated synchronization brake.Combining with the synchronization brake failure in site work,it points out the main reasons causing the failure include wrong line TV secondary voltage transfer,incorrect secondary loop connection,and irrational setting value and parameter setting.It is suggested that when a new device is fixed,simulation on the actual operation is necessary and synchronization simulation test to the best of one's abilities should be conducted,especially,synchronization secondary loop setting value should be checked.When it is put into run,the generatrix and line TV secondary voltage value and polarity should be examined in time,insuring correct synchronization brake function.