Problem 1CA sinusoidal voltage having a peak value of 160 V and frequency of 50 Hz is applied to the terminals of an ac motor. The resulting current has a peak value of 7.5 A and lags 40° behind the voltage.a. Express current and voltage in term of the electrical angle.b. Calculate the value of the instantaneous power at 120°. A sinusoidal voltage having a peak value of 160 V and frequency of 50 Hz isapplied to the terminals of an ac motor. The resulting current has a peakvalue of 7.5 A and lags 40° behind the voltage.a. Express current and voltage in term of the electrical angle.b. Calculate the value of the instantaneous power at 120°.

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Problem 1C A sinusoidal voltage having a peak value of 160 V and frequency of 50 Hz is applied to the terminals of an ac motor. The resulting current has a peak value of 7.5 A and lags 40° behind the voltage. a. Express current and voltage in term of the electrical angle. b. Calculate the value of the instantaneous power at 120°.

Problem 1C A sinusoidal voltage having a peak value of 160 V and frequency of 50 Hz is applied to the terminals of an ac motor. The resulting current has a peak value of 7.5 A and lags 40° behind the voltage. a. Express current and voltage in term of the electrical angle. b. Calculate the value of the instantaneous power at 120°.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.15P: Let a voltage source v(t)=4cos(t+60) be connected to an impedance Z=230. (a) Given the operating...

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