JI SWI (EPE 354) 1A DC shunt generator is rated at 10 kW, 250 V, and 1750 rpm. It has armature and field winding resistances of0.2 Q and 125 0, respectively. The no-load terminal voltage of the generator at field current of 0.75 A, andspeed of 1750 rpm is 144. If the generatpr is driven at 1000 rpm, The no-load terminal voltage in V will beA. 82.29ionO B. 252.00O C. 144.00O D. 136.40Clear my choiceNext page Prof Yaser AragrehExample 1A 3-phase, 2-pole induction motor is connectedto a 50 Hz supply. Determine the synchronousspeed of the motor in rpm.

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Example 1 A 3-phase, 2-pole induction motor is connected to a 50 Hz supply. Determine the synchronous speed of the motor in pm.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

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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.

Question

JI SWI (EPE 354) 1
A DC shunt generator is rated at 10 kW, 250 V, and 1750 rpm. It has armature and field winding resistances of
0.2 Q and 125 0, respectively. The no-load terminal voltage of the generator at field current of 0.75 A, and
speed of 1750 rpm is 144. If the generatpr is driven at 1000 rpm, The no-load terminal voltage in V will be
A. 82.29
ion
O B. 252.00
O C. 144.00
O D. 136.40
Clear my choice
Next page

Prof Yaser Aragreh
Example 1
A 3-phase, 2-pole induction motor is connected
to a 50 Hz supply. Determine the synchronous
speed of the motor in rpm.

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