A 415V, 3-phase, 4 wire, star-connected system supplies three resistive loads, a is 20kw, b is 15kw, c is 18kw, as shown below. Determine (a) the current in each line and (b) the current in the neutral conductor. Sketch the phasor diagram.

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A: As per Bartleby guidelines we are allowed to solve only three subparts, please ask the rest again.

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Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.