When the three identical star-connected coils are supplied with 400 V, 50 Hz, 3-phase supply, the 1-phase wattmeter whose current coil is connected in line R and pressure coil across the phase Rand neutral reads 6 kW and the ammeter connected in R-phase reads 30 Amp. Assuming RYB phase sequence find: (i) the power factor, of the load, (ii) resistance and reactance of the coil (iii) reactive power of 3-phase load and (iv) Apparent Power Power Factor, of the Load Reactance Resistance Reactive Power Apparent Power

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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.