Ql-phase step down transformer 1250 KVA, 110002200 V, 50 Hz. The resistance iphase and leakage reactance phase of the primary winding are 0.78 N and 4.82 and the corresponding values for the secondary winding are 0.01N and 0.06N respectively if the primary winding is connected in delta and secondary in star calculate: )The voltage to be applied at normal frequency to the primary to circulate full-load through it when the secondary is short-circuited Ii) The full load copper loss

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Ql-phase step down transformer 1250 KVA, 110002200 V, 50 Hz. The resistance iphase
and leakage reactance phase of the primary winding are 0.78 N and 4.82 and the
corresponding values for the secondary winding are 0.01N and 0.06N respectively if
the primary winding is connected in delta and secondary in star
calculate:
)The voltage to be applied at normal frequency to the primary to circulate
full-load through it when the secondary is short-circuited
Ii) The full load copper loss
Transcribed Image Text:Ql-phase step down transformer 1250 KVA, 110002200 V, 50 Hz. The resistance iphase and leakage reactance phase of the primary winding are 0.78 N and 4.82 and the corresponding values for the secondary winding are 0.01N and 0.06N respectively if the primary winding is connected in delta and secondary in star calculate: )The voltage to be applied at normal frequency to the primary to circulate full-load through it when the secondary is short-circuited Ii) The full load copper loss
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