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Slip ring motor is preferred over Squirrel Cage motor when
1. High starting torque is required
2. Load torque is heavy
3. Heavy pull out torque is required
  • a)
    Only 3
  • b)
    Only 1
  • c)
    Only 1 and 2
  • d)
    Only 2 and 3
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Slip ring motor is preferred over Squirrel Cage motor when1. High star...
  • Starting torque is directly proportional to rotor resistance
  • Squirrel cage induction motor has very low starting torque due to its rotor resistance of very low value
  • We can’t add any external resistance as its rotor is short circuited through end rings
  • But in case of slip ring motor, we can add external rotor resistance
  • By increasing rotor resistance, we can shift the slip for max torque towards 1 slip, so, for a particular value of external resistance it is possible to achieve max torque during starting
  • Slip ring motor is preferred over Squirrel Cage motor when high starting torque is required
  • Squirrel cage motor has better running torque compared to slip ring motor
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Community Answer
Slip ring motor is preferred over Squirrel Cage motor when1. High star...
  • Starting torque is directly proportional to rotor resistance
  • Squirrel cage induction motor has very low starting torque due to its rotor resistance of very low value
  • We can’t add any external resistance as its rotor is short circuited through end rings
  • But in case of slip ring motor, we can add external rotor resistance
  • By increasing rotor resistance, we can shift the slip for max torque towards 1 slip, so, for a particular value of external resistance it is possible to achieve max torque during starting
  • Slip ring motor is preferred over Squirrel Cage motor when high starting torque is required
  • Squirrel cage motor has better running torque compared to slip ring motor
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Slip ring motor is preferred over Squirrel Cage motor when1. High starting torque is required2. Load torque is heavy3. Heavy pull out torque is requireda)Only 3b)Only 1c)Only 1 and 2d)Only 2 and 3Correct answer is option 'A'. Can you explain this answer?
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Solutions for Slip ring motor is preferred over Squirrel Cage motor when1. High starting torque is required2. Load torque is heavy3. Heavy pull out torque is requireda)Only 3b)Only 1c)Only 1 and 2d)Only 2 and 3Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE). Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
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