Answer / rachana

all current carrying conductors produce magnetic field , the
magnetic field produced by current in the armature of a DC
generator affects the flux pattern and distorts the main
field. This distortion causes a shift in neutral plane ,
which affects commutation. this shift of neutral plane is
known as armature reaction.

Answer / abdullah-al-zubaer imran

The current in the armature produces a flux,and it is the
interaction between this flux and the field flux that is
called armature reaction.

Answer / ramesh pachamal

The effect of armature flu to main flux is called armature
reaction. The armature flux may support main flux or
opposes main flux.

Answer / kishor s.chikane.

Armature reaction means when the give supply to motor field
winding then flux is produce.After that flux is passes into
airgap the this flux cuts by armature conductor and current
flow that conductor.This current produce flux and apposes
(cuts)to main field winding flux.This apposes prosses known
as Armature reaction.

Answer / tanweer

the current flows in the armature conductors which produces
a magnetic field surrounding the conductors.the armature
flux reacts with the main flux .the effects of armature
flux on the main field flux is known as armature reaction.

Answer / ravi sankar g

The effect of Armature Flux upon the Main feild Flux is
called the Armature Reaction

Answer / g.v.suresh kumar

THE INTERACTION BETWEEN MAINFIELD FIUX AND ARMATUREFIELD
FLUX

Answer / nitin

the effect of magnetic field set up by the armature current on the distribution of the flux under the main poles is known as armature reaction.....!

Answer / b.bhaskar reddy

The effect of armature conductors flux on main field flux
is called armature reaction.due to armature reaction
(i)reduction of mainfield flux and distorion of flux in to
air gap perifery.

Answer / pallavi

The effect of magnetic field set up by armature current on
the distributon of flux under main poles of a generator.
The armature magnetic field has two effects (i) it
demagnetises or weakens the main flux and (ii)it cross-
magnetises or distors it. The first effect leads to
reduced generated voltage and the second to the sparking at
the brushes.

if you short the any 2phase(R,Y,B),why fuse get blown?

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why electron produce magnetic field when it is in motion?

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List the materials required for Pipe Earthing.

2 Answers  

i am confused about generator. i have generator of 380 KVA that is 304 KW by that formula KW=KVA*0.8... then by this formula I=KW/V*1.732*0.8 the amperes are 528.673. so that is the load which i put on one phase of generator or this is total 3 phase load on Generator.......

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1 Answers  

I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?

0 Answers  

For Synchronisation of DG Sets Sometimes we people use NIC (Neutral Isolation Contactor) Instead of 4-pole ACB or any switchgerar..Please guide me why is it so????

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KVAR Kilovolt-Ampere-Reactance

2 Answers  

Dear sir, iam completed iti ncvt electrician 2000-2002 & diploma electrical eng completed 2008-2010 distance education in rvd university, still i got B licences only but my working company want C licences, how to i get c licencese pls reply me iam in critical situation thank you karthick 9841637803

0 Answers