What will happen if we give AC supply to DC motor?

Question Posted / f1_match

4 Answers
14222 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What will happen if we give AC supply to DC motor?..

Answer / rahul

depends on type of d motor..i.e. it's construction.
A PMDC motor will not run on AC.
A shunt wound motor will not run on AC. There will b heavy
heating that may cause damage.
A series motor functions as Universal Motor and hence will
run satisfactorily on AC.

Is This Answer Correct ?

21 Yes

2 No

What will happen if we give AC supply to DC motor?..

Answer / f1_match

k but in this case, what will happen to the motor
windings? how about the protection system whether it will
act during this condition?

Is This Answer Correct ?

6 Yes

1 No

What will happen if we give AC supply to DC motor?..

Answer / rahul

luk...of course the performance is gonna b inferior as u may
know the differences b/w universal motor and dc
motor...Eb(back emf) will b less for ac..so less o/p power

Is This Answer Correct ?

6 Yes

1 No

What will happen if we give AC supply to DC motor?..

Answer / velpula.nagarjuna

in dc motor when we give ac supply to the armature then the motor is not run. because the direct flux produce from the permanent magnets, but from the armature winding the alternating flux is produced.that means the flux is rotated continuously.the the polarity of the armature flux continuously changes... the the aiding of the flux is not possible..with out aiding of the flux no torque will be produce..no torque means no rotations...that means the hunting will be processed........

Is This Answer Correct ?

6 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

Why USe In -48 DC Volt !

3 Answers

for star delta connection,,why the contactor star not burn,when red,yellow and blue cable is looping.

2 Answers Mahindra Water Utilities,

Bhel supervision exam question: If 2 generators are working in a network. And if suddenly the field of anyone generator weakens. What will happen in the network? 1. The generator will run as motor 2. The generator will run as motor in reverse direction 3. The generator will take lighter load 4. The generator will take more load

9 Answers Bhel,

WHY THAT THREE COLORS CHOOSEN IN 3 PHASE? WHAT IS MEAN BY RYB?

2 Answers

what r the preventive maintenance of air compressor

1 Answers Jindal,

how to increase or decrease speed in DC shunt motor by DC convertor

0 Answers

On what principle electric motor works?

0 Answers

What will be the full load current of 60KVA UPS. Suggest for this formula.

8 Answers ABC, Sodexo,

what are the differance between neutral and earthing?

3 Answers

how to protect transformer

2 Answers

if we going for high voltage usages what are the considering factors, why those factors are effected.... please give me an answer related motor factors like wnidnig, frame, temp etc

1 Answers ABB,

Define availability (operational)?

0 Answers

For more Electrical Engineering Interview Questions Click Here