Answer / mohammad farman khan-abu dhabi

Primary current injection test require at time of
commissioning to distrubution switchgear.High pot theory.

Answer / brijesh

Primary current injection test require at the time of
commissioning to the current transformer.

The purpose of it is to check the ratio of C.T.

and for checking of C.T. circuit.

The test is conduct by means of primary injection test set.
In test set there is a current transformer and variac.

Answer / arvind negi

Primary current injection test require at circuit
protection equipment throw.

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