"A single phase transformer rated 11/7.2 kV has an impedance of 10.0%. During a factory short circuit test done at rated current, the voltage (kV) applied to the HV terminals will be most nearly:"
Answer: 10% of 100 kV = 10 kV.
Do you multiply by 10% because of the impedance or because 10% of transforer HV is the standard amount when doing a short circuit test on a transformer, and, if so, what standard is that? I don't see a specific value in any of my books, it just says in all of them that a low voltage is needed to be applied...
Answer: 10% of 100 kV = 10 kV.
Do you multiply by 10% because of the impedance or because 10% of transforer HV is the standard amount when doing a short circuit test on a transformer, and, if so, what standard is that? I don't see a specific value in any of my books, it just says in all of them that a low voltage is needed to be applied...