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A six-pole three-phase induction motor is operating at 480 r/min from a 25-Hz, 230-V supply. The voltage induced in the rotor when blocked is 90 V. determine: A) Slip speed. B) rotor frequency and...

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A six-pole three-phase induction motor is operating at 480 r/min from a 25-Hz, 230-V supply. The voltage induced in the rotor when blocked is 90 V. determine:
A) Slip speed.
B) rotor frequency and rotor voltage at 480 r/min.
Answered Same Day Dec 31, 2021

Solution

Robert answered on Dec 31 2021
106 Votes
A six-pole three-phase induction motor is operating at 480
min from a 25-Hz, 230-V supply.
The voltage induced in the rotor when blocked is 90 V. determine:
A) Slip speed.
B) Rotor frequency and rotor voltage at 480
min.
(a) Synchronous speed,
s
120f 120 25
n
p 6
ï‚´
  = 500...
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