The short circuit test in a transformer is performed on

The short circuit test in a transformer is performed on

Right Answer is:

High voltage side

SOLUTION

The short circuit test in a transformer is performed on the High voltage side.

  • A short circuit test is conducted to find the copper loss.
  • It is calculated under the assumption that core loss is neglected.
  • When the SC test is conducted on the LV side it would require a larger voltage to get the rated current.
  • Hence core loss cannot be neglected in this case and the wattmeter doesn’t give the copper loss alone.
    Therefore to get accurate results that test is done on the HV side.
  • The advantage of conducting the short-circuit test on the HV side is that the rated current value on this side is lesser. This will permit the use of ammeter and wattmeter with a lesser current range
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