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1. A 500kW 0.75 lagging load is supplied from a power source at 20 kV through...

1. A 500kW 0.75 lagging load is supplied from a power source at 20 kV through a transformer (630 kVA, 20/0.4 kV ), a circuit breaker and cables. The length of the line is 5 km. ( electrical conductivity of copper is 56 m/ohm.mm2 ) a. Find the apparent power supplied from the transformer by considering the losses on the line. (10 pts) b. Is there any problem with the system? Explain. (10 pts) c. To improve the load power factor to 0.93, find the rating of the capacitor bank. (10 pts) d. After this improvement, find the apparent power supplied from the transformer by considering the losses on the line. (5 pts)

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