EBK POWER SYSTEM ANALYSIS AND DESIGN
6th Edition
ISBN: 9781305886957
Author: Glover
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Figure shows the block diagram of a feedback control system with a disturbance signal N(s). Obtain the output Y(s) due to both R(s) and N(s).
A 3-phase, 6-pole induction motor is con-
nected to a 60 Hz supply. The voltage in-
duced in the rotor bars is 4 V when the ro-
tor is locked. If the motor turns in the same
direction as the flux, calculate the approxi-
mate voltage induced and its frequency:
a. At 300 r/min
b. At 1000 r/min
c. At 1500 r/min
Make a drawing of the magnetic field cre-
ated by a 3-phase, 12-pole induction motor.
How can we change the direction of rota-
tion of a 3-phase induction motor?
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