1/3 h p ,120 v , 60 hz split phase 1 ph I m has the following parameters : R main = 4.5 ohm , Ra = 9.5 ohm , xa= 3.5 ohm , Xm=3.7 ohm Find the appropriate value of the starting capacitance? Draw the starting phasor diagram relating V, I, I main, and I aux.

1/3 h p ,120 v , 60 hz split phase 1 ph I m has the following parameters : R main = 4.5 ohm , Ra = 9.5 ohm , xa= 3.5 ohm , Xm=3.7 ohm Find the appropriate value of the starting capacitance? Draw the starting phasor diagram relating V, I, I main, and I aux.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter21: Resistive-capacitive Series Circuits

Section: Chapter Questions

Problem 7RQ: An RC series circuit is connected to a 120-V, 60-Hz power source. The resistor is 25 and has a...

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Concept explainers

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.

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