What will happen if the interpoles in case of a generator have opposite polari

What will happen if the interpoles in case of a generator
have opposite polarities to that behind it in the direction
of rotation ?

Question Posted / rakesh

1 Answers
4185 Views
I also Faced
E-Mail Answers

What will happen if the interpoles in case of a generator have opposite polarities to that behind ..

Answer / rakesh

There will be delayed commutation , for the brushes are
still in interpolare axis , but due to the armatut=re
reaction the point of 0 flux density gets displaced in the
direction of rotation of the generator , hence the armature
coils after crossing the brushes wil still remain under the
polarities of the trailing poles , hence again a rotational
emf will be generated which again opposes the current
reversal in the commuted coil , thereby causing delayed
commutation , it is for this reason that the interpoles are
designed with the same polarites as the main oles behind it
in the direction of the rotation in case of generator , and
opposite is the case with a motor.

Is This Answer Correct ?

2 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

why the under of transformer platform is filled with rock stones.

10 Answers TNEB Tamil Nadu Electricity Board,

FACP Means

1 Answers RR,

what is the min and max dc voltage for a dc system (110vdc)

1 Answers ASD Lab,

What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor

0 Answers Viva,

i have 1500 kva generator how much maximum load avilable of use

1 Answers Dr Reddys,

How much current can 11KV line carry? What are the formulae used to calculate current across both side of transformer? Moreover I need to know can I connect 33KV line with transformer of 1600KVA? Details are: V=415, Pf= .9

3 Answers

how to testing the AC 3 phase motor? and what is the test procedure & kits required for testing?

3 Answers

What happen if we re-start H.T motor whose rotor is running at 40% rated speed. Is it will damage motor winding?

1 Answers

what is relation between HP & BHP

3 Answers Usha Martin,

How to calculate LT Network length in power distribution ? Service cable length considered or not?

0 Answers Torrent Power,

What is the maximum and minimum rating of UPS?

0 Answers Indiabulls,

What is power factor ?What are the benefits of improved power factor & how. Please explain with examples.?

5 Answers ABB,

For more Electrical Engineering Interview Questions Click Here