richard pando
Member
- Location
- La Mirada, CA.
how is transformer internal impedance calculated?
Thanks,
Richard
Thanks,
Richard
steve66 said:For example, for a 480V transfomer, if 16.8 volts applied to the primary causes full load secondary current, the impedence is 16.8/480 = 3.5%.
ramsy said:Isn't this measured-Z formula for SCC = E / [Z*Sqrt(?)], not for the calculated formula SCC = E / [(%Z*E) / (VA/E)*Sqrt(?)], which uses %Z (Nameplate value)?
ramsy said:Isn't this measured-Z formula for SCC = E / [Z*Sqrt(?)], not for the calculated formula SCC = E / [(%Z*E) / (VA/E)*Sqrt(?)], which uses %Z (Nameplate value)?