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A 'commutator' has several functions. The three main functions are: (a) to interconnect the individual armature windings, (b) to provide a means of connecting the rotating windings to the fixed, external, conductors, and (c) to act as a rotary rectifier -i.e. to change the a.c. voltage naturally induced into the rotating armature into a d.c. voltage at its terminals.
Roxane Bode
Wiki User
∙ 12y agoA commutator is used to ensure the correct direction of current flow is maintained through the windings within the rotor of a direct current motor or generator.
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Wiki User
∙ 11y agoA commutator, together with its brushes, is a rotary switch which acts to ensure that the current flowing through the armature windings acts in the same direction relative to the magnetic field, so that the motor will continuously rotate.
Wiki User
∙ 12y agoA commutator applies power to the best location on the rotor, and in a generator, picks off power similarly.
Wiki User
∙ 7y agoIts a switch. With the brushes, it controls which winding get what current in which direction.
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What are the jobs of the gears in an electric pencil sharpener?
the basic Boston pencil sharpeners are really very simple you have a pretty much simple ring and pinion system the pinion (motor)spins at 15 revolutions to 1 revolution of the ring (sharpener) to turn said sharpener
When you heat a metal ring does the hole become larger or smaller?
It expands; example/ If you take a bearing for a ( motor shaft-not an engine, an electric MOTOR ) to install a new bearing after removing the others simple heat the new one to a moderate temperature with gloved hands slide it onto the shaft. It cools rapidly and is on the shaft as though it was pressed on.
Wire gauze functions?
Wire gauze can be used to support a container (such as a beaker or flask) during heating. When the Bunsen burner flame is beneath it, with a tripod, the wire gauze helps to spread the flame (and heat) out evenly over the container. It is frequently used in combination with an iron ring and ring stand with a Bunsen burner underneath it (see the Related Questions for more information about an iron ring, ring stand, and Bunsen burner & tripod). A clay triangle serves a similar purpose, except that a clay triangle is used for a crucible instead.
What part of compass surrounds a piece of glass with a short luminous line etched in its surface?
the bezial ring
What has more mass greatest to least gold ring balloon wooden yo-yo and a pillow?
The answers depend on the sizes of these objects.
A split metal ring that acts as a switch in an electric motor is called a?
commutator
How do you change an ac motor to a DC motor?
Ac motor have slip ring, to remove the slip ring,connected to the commutator its a dc motor.
What does the split ring commutator do in a motor?
It generates a alternating current to keep the motor rotating in the same direction.
How does the commutator reverse the current in a motor?
Commutator is a split ring which reverses the current .when the commutator turns around due to magnetic force and because of it even the current gets reversed
What is a reversing switch that rotates with the coil in am electric motor and reverses the direction of the current every half turn?
It's called a 'split-ring commutator'. It changes the naturally-produced a.c. into d.c.
What does the brushes and commentator in a D C motor do?
i have never heard of a commentator in a motor, think you may be mistaking that word. inside an electric motor you have a stator and windings, as polarity changes it spins the stator and the brushes transfer the charge to the device being used.. I think they meant commutator. If you break an electric motor down to 2 parts, you have a commutator and an armature. the armature being the shaft that basically floats on bearings, and the commutator being the hull where the stator is. (and there is such thing as a brushless electric motor.) the stator does not spin. that is the term used for the magnets that pull the electric field supplied by the brushes. To make even more simple, imagine a shaft floating on bearings with 2 magnets on it, one positive and one negative ( the armature) and this shaft is inside of a ring of electricity the is flowing in one direction, its going to pull the negative and push the positive (the commutator) and cause the armature to spin.
What is the basic difference between carbon brush of AC slip ring motor and carbon brush of Direct current commutator motor?
The only difference between slip rings and commutator is that commutator can change the frequency where as the slip rings can not do it.
Purpose of slip rings?
slip ring is connect on shaft of motor to collect current from commutator without any complicate connection and with use of it resistors can be insert in circuit and therefore speed control of motor can easily achive
How do you ring out an electric motor?
Put the wires in your but!
How does torque reverse in a dc motor after half a revolution?
The point is that, with a d.c. motor, we don't want the torque to reverse every half-revolution, if the motor is to continue running in the same direction. To achieve this, we use a split-ring commutator/brushes, which rotates with the armature coil. Essentially, a split-ring commutator has twofunctions: (1) to enable us to connect the rotating coil to an external supply circuit and (b) to act as a rotating switch, ensuring that the armature current always flows in the same direction relative to the motor's magnetic field. Thanks to (b), the machine will continue to rotate in the same direction.Without a split-ring commutator, after half a revolution, the armature current will reverse direction relative to the magnetic field, the torque will reverse, and the motor will reverse direction.
Switch that regularly reverses the current in some motors?
A switch that reverses the direction of the current in a motor is called a forward reverse drum switch. It is a single phase motor that turns from clockwise to counter clockwise.
What is the purpose of using slip rings?
This is the standard answer for both split ring commutator and slip ring. A split ring commutator is to reverse the current direction through an armature every half turn A slip ring is to ensure that the current continue to flow to the external circuit Last bit of additional information. Carbon brush ensure that the slip ring are in contact with the circuit containing the external load *Note: Do not get confused with split ring commutator(d.c.generator) & slip ring(a.c. generator)
