why the desirable efficiency for a motor is 60%, but in case of transformer, it

why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?

Question Posted / himumama11

1 Answers
4042 Views
I also Faced
E-Mail Answers

why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?..

Answer / swapnil hete

Motor is the dynamic device so, frictions losses& windage losses is include in the total losses.
on the other hand trnasformer is the static device hence there is no frictions losses & windage losses

Is This Answer Correct ?

11 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

can we connect 2.2kw star motor in delta passion?

1 Answers Zuari,

how we can varying the speed of dc motor ?

6 Answers

How to control motor gearbox speed and friquency? If length of cable and dia given, how to measure the voltage drop?

0 Answers

Where can I get Iidian straderd specifications for electrical items or works in web? please help me.

0 Answers

why we use primary delta connectin in hight voltage transformer

2 Answers

during installation time of transformer and alternator which points we have to observed?

0 Answers

If NO contact of relay gets supply from other sources or other part of circuit and at a time relay coil activates,then current will flow in which direction & will it cause to damage relay??

1 Answers

what are the steps involved in generator load test?

0 Answers

why electric shock due to dc is dangerous than that of ac

44 Answers

what happens in the short circuited secondary transformer,if the resistance of the short circuit is increased gradually?

0 Answers IIT,

why Copper loss is represented as I square R ?

5 Answers L&T,

can we run the home fan both clock and anticlockwise direction

1 Answers

For more Electrical Engineering Interview Questions Click Here