Transformer Ratings setup on ETAP
Transformer Ratings setup on ETAP
(OP)
I am wondering what we need to input for LF ,SC and HA and motor starting study in ETAP if we have multiple rating transformer. For instance, 10/13.3/16MVA. The base rating is 10MVA. The impedance is 7% which is based on 10MVA. My collegue thinks it should be 13.3 or 16 if we switch to ONAF ratings during the operation. I don't think so since the transformer impedance is based on the base rating. Any commnents would be appreciated.






RE: Transformer Ratings setup on ETAP
RE: Transformer Ratings setup on ETAP