08-17-2017, 12:40 AM
Hi everybody in this useful page
imagine that you have a 180 MVA 230 / 63 KV transformer with this detail for CT rating
HV side CT rating:1000 / 1
HV side (neutral) :2000 / 1
Why we get fault in configuration of protection and blocking of HV REF?
Is there any formula for calculating range of ct rating according to HV side CT for choosing HV neutral CT?Or any criteria for calculating the best range ct rating for HV REF in this sample?