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Which of the following statements about synchronous-induction motors is incorrect? | |
A. | It is basically a wound rotor induction motor wïth fewer and larger slots on rotor. [Wrong Answer] |
B. | It has a very small air gap as expected in a plain induction motor. [Correct Answer] |
C. | It is connected to 3-phase ac supply on stator side and to dc on rotor side. [Wrong Answer] |
D. | It starts as an induction motor and runs as a synchronous motor. [Wrong Answer] |
E. | It is provided with a heavy rotor winding. [Wrong Answer] |