A balanced star connected load is supplied from a symmetrical 3 phase, 400 V system. The current in each phase is 30 A and lags 30 behind the phase voltage. (a) Find the phase voltage, (b) The total power. Answer: a) 231 V, b) 18 kW
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Step 1
- The system is a symmetrical 3-phase, 400 V system. This means the line voltage (V_L) is 400 V. - It is a star (or Y) connected load, which means the phase voltage (V_Ph) is related to the line voltage by the equation V_L = √3 * V_Ph. - The current in each phase Show more…
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