what will hapen if we give ac supply to dc motor?

Question Posted / guest

2 Answers
5649 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

what will hapen if we give ac supply to dc motor?..

Answer / apoorv

It depends on whether the field winding of the dc motor is connected in series or in shunt with the armature winding.If it is connected in series,the motor will rotate since the torque,which varies as the product of the armature and field current is always positive.Thus,a positive average torque causes the motor to rotate,however the pulsating nature may cause the commutator segments and brushes to wear out.
Thus only small sized dc motors may be used with ac supply.

Read more: http://wiki.answers.com/Q/What_will_happen_if_you_give_AC_supply_to_a_DC_motor#ixzz1PFQibbRO

Is This Answer Correct ?

8 Yes

0 No

what will hapen if we give ac supply to dc motor?..

Answer / akki

Simple as always the dc motor in most cases would not even
start but if it does the load capacity would be like
pathetic

Is This Answer Correct ?

3 Yes

6 No

Post New Answer

More Electrical Engineering Interview Questions

what is ten delta test? what is the significanse of it

1 Answers

how we are measuring the winding temperature of the transformer?

11 Answers

which type of breaker sould be used for different level of voltage ? (i.e at 11 Kv, 33 Kv, 66 Kv....

8 Answers

is it necessarry to charge the battery of ups always??

3 Answers

1hp= how much rpm

0 Answers

how commomn gate triggering is given for TRIAC ? other thyristor wont be efffected?

0 Answers BARC,

power requirement of an l.e.d?

2 Answers

what r the checklist while installing 500 kva transformer

0 Answers Pepsi,

We are using Powerica make 100 KVA DG set. Whenever i connect compressor on DG load (Compressor Make Atlas Copco 5.5 kva) that time we face the lot of fluctuation on Dg output. Can you please suggest me how can prevent this fluctuation?

6 Answers

how to select the power contactor in Diffrent AC motors.

6 Answers Titan,

Hi friends I am a service engineer in electrical field i plan to shift design engineer in same field, so i request your suggestion for what software or course i want to learn ?

5 Answers

What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

0 Answers HAL,

For more Electrical Engineering Interview Questions Click Here