Answer / viren

IT CONVERT THE ALTERNATIG CURRENT GENTRATED IN THE WINDING
OF MACHINE INTO DIRECT CURRENT.

Answer / sumit maitra

commutator is a mechanical rectifier which converts ac to dc

Answer / sunil guru

COMMUTATORS IS USED ALONGWITH THE BRUSH TO PROVIDE UNI-
DIRECTIONAL CURRENT AND TORQUE FROM THE ARMATURE

AND IT CONVERS AC TO DC IN DC MOTOR OR GENERATOR

Answer / arun kumar

ACTUALLY COMMUTATOR WAS USED TO ENERGISE THE WINDING FOR DC MOTORS
AND FOR GENERATORS COLLECTS THE EMF FROM ROTOR

Answer / kalaimagal

In dc motor actually dc supply will be given as source for
excitation.the function of commutator is to convert the ac
supply to dc supply,it same as rectifier function.

Answer / anil bhatia

commutator is basically a midiam by which current is passed
through from fixed conductor to rotating field of rotor or
vise versa.

Answer / desingurajan

First answer is moreover correct

But 4th is 100% wrong answer
(In DC motor we do not give AC supply)

Desingh
Rajapalayam
Ramco Cements

Answer / bhagya

sir actually the function of the motor is to convert
electrical to mechnical energy but wat is the purpose of
commutator in dc motor.if we ll not give ac supply

Answer / anbuselvan.g

Motor is always convert Electrical power into Mechanical Power.

Here in DC motor, we just give AC supply as Electrical
Power, the Commutator will convert or rectify the AC into DC
to its windings.

It is also called as Rotating Rectifier.

The same function happen in DC generator which convert
Induced AC power in Armature into DC power to their loads.

Answer / udhaya kumar

commutator reverses the flow of current.In order to develop
mechanical force.

what is the fullform of mccb

10 Answers   Thermax,

what is lightning arester?generaly which type of used in industeries? why its used?

7 Answers   Essar,

what is the calculation involved to design the heater to heat 10KL of water in temperature control unit?

0 Answers  

Can we use generator transformer as step down transformer? How?

3 Answers  

what is meant by GD2 ?

1 Answers   Kirloskar,

What is meant by IP55 motor.Where it is used?

2 Answers   Zuari,

In Battery Charger - What is the meaning of End Cell Voltage and Float Voltage.

9 Answers   FLSmidth, Focus, PSEB,

Why 1500 rpm of deasel generator please explain to me?

1 Answers   Integral BioSciences,

why C.T secondary are rated 5A generally?

13 Answers   ABC, Bhel,

what is RR number Abbreviation energy meter

2 Answers   Trimax,

write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.

0 Answers  

hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

0 Answers