Multi-layer helical windings are commonly used in the transformers as high voltage windings_______________?

Related Mcqs:

Electrical machines having a power output up to about 750 W may be called__________machines?

A. small size B. medium size C. large size D. any of the above...

__________is extensively used for those portions of magnetic circuit which carry steady flux and need superior mechanical properties ?

A. Grey cast-iron B. Cast steel C. High carbon steel D. Stainless steel...

The slot leakage can be calculated by making which of the following assumptions ?

A. The current in the slot conductors is uniformly distributed over their cross-section B. The leakage path is straight across the slot and around the iron at the bottom C. The permanence of air paths is only considered. The reluctance of iron paths is assumed as zero D. All of the above...

Which of the following in an application of D.C. motors?

A. Traction B. Drives for process industry C. Battery driven vehicles D. Automatic control E. All of the above...

The flash point of transformer oil should be higher than_______________?

A. 40°C B. 60°C C. 80°C D. 104°C...