On the Torque/Speed curve of an induction motor shown in the figure, four points of operation are marked as A, B, C and D.

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Which one of them represents the operation at a slip greater than 1?

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  1. A
  2. B
  3. C
  4. D

Answer (Detailed Solution Below)

Option 1 : A
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Detailed Solution

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The torque slip characteristics are shown in the figure below.

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From the given diagram in the question,

  • Point A represents the operation at a slip greater than 1.
  • Points B and C represent the operation at a slip between 0 to 1.
  • Point D represents the operation at a negative slip.
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