Determin the total line current drawn from the supply

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Reference no: EM13265457

A 415V 50 Hz three phase supply has been divided into three balanced loads, as follows:

LOAD 1 (STAR): 15 kVA at a power factor of 0.60 lagging;
LOAD 2 (DELTA): 24 kW at a power factor of 0.55 lagging;
LOAD 3 (DELTA): ZRW = ZWB = ZBR = Unknown impedance, but components are known to be balanced.

The system draws a total apparent power of 44kVA at a power factor of 0.82 lagging from the supply.

Determine:

(i) the STAR capacitance required to correct the overall supply Power Factor to 0.87 lagging.
(ii) The total line current drawn from the supply before power factor correction and after.

Reference no: EM13265457

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