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A 50 Hz, 6 pole, single phase induction motor is rotating in the clockwise direction at a speed of 940 rpm. The slip of motor in the direction of rotation and opposite direction of motor will be respectively.
  • a)
    0.06, 1.94
  • b)
    0.04, 1.96
  • c)
    0.04, 0.02
  • d)
    0.06, 0.03
Correct answer is option 'A'. Can you explain this answer?
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A 50 Hz, 6 pole, single phase induction motor is rotating in the clock...
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A 50 Hz, 6 pole, single phase induction motor is rotating in the clock...
Solution:

Given data:
Frequency (f) = 50 Hz
Number of poles (P) = 6
Speed (N) = 940 rpm

1. Synchronous speed calculation:
The synchronous speed (Ns) of the motor can be calculated using the following formula:

Ns = (120f) / P

Substituting the given values, we get:
Ns = (120 x 50) / 6
Ns = 1000 rpm

2. Slip calculation:
The slip (S) of the motor is given by the formula:

S = (Ns - N) / Ns

Substituting the given values, we get:
S = (1000 - 940) / 1000
S = 0.06

Therefore, the slip of the motor in the direction of rotation is 0.06.

3. Slip in opposite direction:
Since the motor is a single-phase induction motor, it will not rotate in the opposite direction. However, if we assume that the motor does rotate in the opposite direction, then the slip can be calculated as follows:

The synchronous speed (Ns) in the opposite direction will be:
Ns = (120f) / (2P) = (120 x 50) / (2 x 6) = 500 rpm

The slip (S) in the opposite direction will be:
S = (Ns - N) / Ns = (500 - 940) / 500 = -0.88

Since slip cannot be negative, the slip in the opposite direction is taken as 1 - |-0.88| = 1.88

Therefore, the slip of the motor in the opposite direction is 1.88.

Hence, option A (0.06, 1.94) is the correct answer.
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A 50 Hz, 6 pole, single phase induction motor is rotating in the clock...
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A 50 Hz, 6 pole, single phase induction motor is rotating in the clockwise direction at a speed of 940 rpm. The slip of motor in the direction of rotation and opposite direction of motor will be respectively.a)0.06, 1.94b)0.04, 1.96c)0.04, 0.02d)0.06, 0.03Correct answer is option 'A'. Can you explain this answer?
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A 50 Hz, 6 pole, single phase induction motor is rotating in the clockwise direction at a speed of 940 rpm. The slip of motor in the direction of rotation and opposite direction of motor will be respectively.a)0.06, 1.94b)0.04, 1.96c)0.04, 0.02d)0.06, 0.03Correct answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A 50 Hz, 6 pole, single phase induction motor is rotating in the clockwise direction at a speed of 940 rpm. The slip of motor in the direction of rotation and opposite direction of motor will be respectively.a)0.06, 1.94b)0.04, 1.96c)0.04, 0.02d)0.06, 0.03Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 50 Hz, 6 pole, single phase induction motor is rotating in the clockwise direction at a speed of 940 rpm. The slip of motor in the direction of rotation and opposite direction of motor will be respectively.a)0.06, 1.94b)0.04, 1.96c)0.04, 0.02d)0.06, 0.03Correct answer is option 'A'. Can you explain this answer?.
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