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2. If a DC motor is operated with no shaft load and its speed is controlled using a field rheostat, mathematically predict the transient effect on the armature current if: a) the motor speed is abruptly increased, and b) the motor speed is abruptly decreased.

2. If a DC motor is operated with no shaft load and its speed is controlled using a field rheostat, mathematically predict the transient effect on the armature current if: a) the motor speed is abruptly increased, and b) the motor speed is abruptly decreased.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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2. If a DC motor is operated with no shaft load and its speed is controlled using a field rheostat, mathematically predict the transient effect on the armature current if: a) the motor speed is abruptly increased, and b) the motor speed is abruptly decreased. 3. If the DC motor is operated with no shaft load and its speed is to be controlled via the armature voltage, how would you control the motor shaft speed if the source voltage is to remain fixed at its rated value of VT = 115 [V]?
Transcribed Image Text:2. If a DC motor is operated with no shaft load and its speed is controlled using a field rheostat, mathematically predict the transient effect on the armature current if: a) the motor speed is abruptly increased, and b) the motor speed is abruptly decreased. 3. If the DC motor is operated with no shaft load and its speed is to be controlled via the armature voltage, how would you control the motor shaft speed if the source voltage is to remain fixed at its rated value of VT = 115 [V]?
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