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The following columns present various modes of induction machine operation and the ranges of slip A Mode of operation a. Running in generator mode b. Running in motor mode c. Plugging in motor mode B Range of Slip p) From 0.0 to 1.0 q) From 1.0 to 2.0 r) From -1.0 to 0.0 The correct matching between the elements in column A with those of column B is

1. a-r, b-p, and c-q
2. a-r, b-q, and c-p
3. a-p, b-r, and c-q
4. a-q, b-p, and c-r

Correct answer: a-r, b-p, and c-q

Solution

The correct option matches running in generator mode (a) with a negative slip range (r), indicating the machine is supplying power back to the grid. Running in motor mode (b) corresponds to a positive slip range (p), where the machine consumes power to operate. Plugging in motor mode (c) involves a higher slip range (q) as it represents a rapid deceleration or reversal of the motor's direction.

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