A 3 phase induction motor draws active power P and reactive power Q from grid. If it is operating as a generator, P and Q will respectively be
- A. Positive and negative
- B. Positive and positive
- C. Negative and negative
- D. Negative and positive
Answer: B. Positive and positive
Explanation: Under normal motoring operation, an induction motor consumes real power P to perform mechanical work and draw reactive power Q to establish its rotating magnetic field, so both P and Q are positive.