Q. 3a) Each phase of delta connected load comprises a resistor of 50 ohm and a series capacitor of 50 µF. Calculate the line and phase currents when the load is connected to a 440 V, 3 phase, 50 Hz supply b) Two wattmeters are connected to measure the input to a 400 V, three phase delta connected motor whose output is 24.4 kW at a power factor of 0.4 (lag) and 80% efficiency. Find the resistance and reactance of the motor per phase and reading of cach of wattmeter.
Q. 3a) Each phase of delta connected load comprises a resistor of 50 ohm and a series capacitor of 50 µF. Calculate the line and phase currents when the load is connected to a 440 V, 3 phase, 50 Hz supply b) Two wattmeters are connected to measure the input to a 400 V, three phase delta connected motor whose output is 24.4 kW at a power factor of 0.4 (lag) and 80% efficiency. Find the resistance and reactance of the motor per phase and reading of cach of wattmeter.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:Q. 3a) Each phase of delta connected load comprises a resistor of 50 ohm and a series capacitor of 50 µF.
Calculate the line and phase currents when the load is connected to a 440 V, 3 phase, 50 Hz supply
b) Two wattmeters are connected to measure the input to a 400 V, three phase delta connected motor whose
output is 24.4 kW at a power factor of 0.4 (lag) and 80% efficiency. Find the resistance and reactance of the
motor per phase and reading of each of wattmeter.
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