What happens if we give ac supply to dc shunt and series motors individually

What happens if we give ac supply to dc shunt and series
motors individually

Question Posted / teja

4 Answers
9392 Views
Essar, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What happens if we give ac supply to dc shunt and series motors individually..

Answer / tanmay goon

motor will continue to rotate in same direction bcoz in ac
supply direction of current in both field and armature
changes simultaneously bcoz of which direction of resultant
field thus torque remains same.

Is This Answer Correct ?

11 Yes

2 No

What happens if we give ac supply to dc shunt and series motors individually..

Answer / sri

in addition with ans 2

the losses in the motor will be high
ref any text book for ac series motor

Is This Answer Correct ?

4 Yes

0 No

What happens if we give ac supply to dc shunt and series motors individually..

Answer / kdharanya

both the motors will not rotate
when the teminal voltage supply for a dc motor is changed
its direction of rotation changes.
With a ac supply to its terminals there will the change in
the direction of supply every 20ms(in case of 50hz freq)
Due to this very high change in the direction of terminal
voltage and inertia of the motor the rotor does not rotate.

Is This Answer Correct ?

13 Yes

16 No

What happens if we give ac supply to dc shunt and series motors individually..

Answer / ganika

shunt motor won't rotate because alternating field developed in the both field and armature and peak voltage is more so takes more current and fuse blow out, due to over current.
series motor rotate as repulsion motor with over current and commutation, but the core are not laminated, so it produce more heat.

Is This Answer Correct ?

1 Yes

4 No

Post New Answer

More Electrical Engineering Interview Questions

A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why

0 Answers

If any cable burnt how can we identify it burnt by high current of high voltage?

0 Answers

salam, hi, how to calculate british temperature unit (B.T.U)?

1 Answers

a 230v transformer with step down ratio 19:1.it has 2000turns on primary and rated 25va calculate max primary current no of secondary turns volts/turn

0 Answers

What are the different condition monitoring techniques for a motor?

1 Answers DAE,

If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")

0 Answers

What is the Ramping rate of Generator. What mena Ramping rate

2 Answers Siemens,

what would happen nif we increase or decrease the capacitor of a flood light.

1 Answers

How can we do megger test of cable??

2 Answers

If the earth is a good conductor of electricity, why don't people get shocked every time they walking on earth?

0 Answers Reliance,

how we can set the IDMT relay.

0 Answers Suzlon,

how much Amp we can put in 1200kva generator?

11 Answers MacLellan,

For more Electrical Engineering Interview Questions Click Here