power transformer short circuit impedance voltage
power transformer short circuit impedance voltage
(OP)
hi,
I would like to know the physical meaning of transformer short circuit impedance voltage written on the name plate of transformer as %
Best regards.
I would like to know the physical meaning of transformer short circuit impedance voltage written on the name plate of transformer as %
Best regards.





RE: power transformer short circuit impedance voltage
“The voltage required to circulate rated current through one of two specified windings of a transformer when the other winding is short-circuited, with the windings connected as for rated voltage operation.” (IEEE C57.12.80)
You might also Google "open circuit test" + transformer and "short circuit test" + transformer.
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RE: power transformer short circuit impedance voltage
If you have a 110 KV/11 KV trafo with 10% impedance, you apply 11 KV on the 110 KV winding with 11 KV winding shorted across the three phases to get 100% rated current on both windings.
RE: power transformer short circuit impedance voltage
The impedance a transformer is measure by the method described by scottyuk above..
RE: power transformer short circuit impedance voltage
RE: power transformer short circuit impedance voltage