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A 3 - transmission line has a resistance per phase of 5 and an inductive reactance per phase of 12 and the line voltage at the receiving end is 33KV. (a) Determine the voltage at the sending and when the load at the receiving end is 20MVA at 0.8 P.f. lagging. (b) The voltage at the sending end is maintained constant at 36KV by means of a synchronous phase modifier at the receiving end, which has the same rating at zero load at the receiving end as for. The full load of 16MW. Determine the p.f. of the full load output and the rating of synchrous phase modifier.


A 3



- transmission line has a resistance per phase of 5 and an inductive reactance per phase of 12 and the line voltage at the receiving end is 33KV.

(a) Determine the voltage at the sending and when the load at the receiving end is 20MVA at 0.8 P.f. lagging.


(b) The voltage at the sending end is maintained constant at 36KV by means of a synchronous phase modifier at the receiving end, which has the same rating at zero load at the receiving end as for. The full load of 16MW. Determine the p.f. of the full load output and the rating of synchrous phase modifier.



Grade:Upto college level

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