Interpoles are meant for
Increasing the speed of the motor
Increasing counter emf
Strengthening the main field.
Reducing sparking at the commutator.
Reducing sparking at the commutator.
Interpoles
are used to reduce the effect of armature reaction in the inter polar regions
and also to nullify the effect of induced emf generated in the coil undergoing
commutation. Due to this emf, the sparking occurs and interpoles help in
reducing the sparking occurring at the commutator.
Hence,
the correct option is (D).
Preparing students for success in a changing World.
We care about our students
RPSC-AE, RSMSSB-JE, SSC-JE, RRB-JE, PSU's