suppose we using 3 phase motor of 440 v means what range
of C.T. is require for measuring current ?
Answer Posted / engr, abdul barek
Mr. Naresh: Motor rating is always kW and transformer rating is KVA.
Alternator no depends on power factor.
For CT design, Should be need KW & voltage lavel.
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A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?
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