What will happen if the interpoles in case of a generator
have opposite polarities to that behind it in the direction
of rotation ?
Answer Posted / 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 View All Answers
What products have you designed which have entered high volume production?
i m electrical diploma holder i want to do plc $ Scada some body tell me which insitute is best for me near chandigarh
how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???
rajha power sector details
how to select electronic timer(Star-Delta) setting for diff. rating motors
Graphs of measuring power and speed on dc motor
stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate
1.what is meaning of curve into a mcb. 2.what is basic reason changing of curve
1. Design a counter which counts 0, 4, 8, 2, 6, and repeats using: 1.a using JK flip flops 1.b using T flip flops 1.c using D flip flops
How the capacitance og capacitor volatage transformer is decided?
how calculate the electrical load for industry and office
What is difference between YNyn0 and YNyn ??
How to know the following data of synchronous generator 1. D-Axis Unsaturated Reactance 2. D-Axis Unsaturated Transient Reactance 3. D-Axis Unsaturated Sub - Transient Reactance
WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.
why we setting 95 deg and 105 deg in wti and oti of distibution transformer ? give the reson for that ?