The winding where dummy coils are used is sometimes called______________?
Correct answer: C. forced winding
- A. duplex winding
- B. triplex winding
- C. forced winding
- D. none of the above
Explanation
A dummy coil is inserted in a wave winding when the slot or coil number does not satisfy the normal wave-winding condition; this arrangement is called a forced winding. Duplex and triplex describe multiple-circuit lap windings, not dummy-coil use.
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