Answer / kalai anand

commutator converters the input diret currenr(DC) to
alternating current(AC) and properly distributes it to each
winding in the armature

Answer / waqas iftikhar

To keep the torque on a DC motor from reversing every time
the coil moves through the plane perpendicular to the
magnetic field, a split-ring device called a commutator is
used to reverse the current every 180 degree at that point.

Answer / amit bhardwaj

In a dc moter comutator distribute the dc to conductor.who coductor row touch b comutator's pich in them flow current and then it genrat tourq

Answer / hitesh

it is true ,commutator converts dc to ac because here we are
applying dc supply and dc has no frequency so it is not
possible production of flux so commutator is required to
convert dc to ac.

Answer / anamika verma

commutator is a mechanical rectifier which converts ac to dc.
when a voltage is generated in armature coils which is ac ,commutator converts it in dc with the help of brushes in gives dc voltage or current.
commutator is always rest on shaft and insulated with it.

Answer / vikram

it converts ac current produced in machien to dc current
so,its also called as mechanical rectifier.
A commutator is a rotary electrical switch in certain types
of electric motors or electrical generators that
periodically reverses the current direction between the
rotor and the external circuit

Answer / abhijeet

commutator convert ac in to dc in dc generators

Answer / pravin sathalpara

dear all friends commutator is not use in dc motor.it is
use in dc generator and its function is ac induce emf
converts into dc emf.

Answer / manreet

Function of commutator in DC motor is to convert AC(alternating current) into DC(direct current).

Answer / rahul kumar

In dc motor commutator helps to convert the DC signal to AC
signal,A segmented of copper sleeve is called a commutator.
As the motor turns, carbon brushes slide over the commutator,
coming in contact with different segments of the commutator.
The segments are attached to different rotor windings,
therefore, a dynamic magnetic field is
generated inside the motor when a voltage is applied
across the brushes of the motor.

why open circuit test is conducted on hv side and short circuit test is conducted on lv side of a transformer ?what is the reason for it ?

3 Answers   HCL, NTPC,

WHAT IS LOAD CELL

0 Answers   AP, TATA,

when an induction motor runs on load.at that time if we reduce the supply voltage the current increases.But when it runs without load,if we reduce the supply voltage the current also reduced.why?.i checked it practically also.

1 Answers   Birla,

how to calculate the current carrying capacity of a conductor. How it is related to diameter of cable or conductor

3 Answers   AGC, BARC,

Why GRR starts from 60% of motor speed why not less than 60%?

0 Answers  

which type of motor is suitable for water pump?

1 Answers   IIM,

How shall i select the value of capacitor or inductor in a system?

0 Answers  

WHAT HAPPENED HT MOTOR FEED WITH LT SUPPLY

1 Answers  

Factory acceptance test. FAT. For 132 kv transmisstion towers what is that meaning and what are the tests commonly companies perform now days.

0 Answers   PKR,

In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

0 Answers  

lead acid battery electrolity?

2 Answers  

What is the maximum load of 240mmsequre single core cable can carry?

1 Answers