A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resi

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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