special electrical machines important questions for nov dec 2014 Archives

Electrical Machines Short Answers

1. Why almost all large size Synchronous machines are constructed with rotating field system type? The following are the principal

[1] What is an ideal transformer? The ideal transformer should have the following properties: It has no losses Its windings

[1] Why is the efficiency of a three-phase Induction Motor is less than that of a three-phase Transformer? Three phase