Apr 13th 2017, 12:46 PM
Join Date: Apr 2015
Location: Somerset, England
Was this the whole question?
It seems a bit short on information.
Impedance is measured in Ohms, not percentages.
If 5.75% was mentioned I would guess this referred to the % regulation at fault conditions.
Without further information I further guess that the fault is a secondary short circuit.
In a secondary short circuit, the secondary output voltage is zero so the whole of the primary applied voltage is used in sending current through both the primary and secondary windings.
Last edited by studiot; Apr 14th 2017 at 01:25 AM.