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What is the important of brush in DC machine?
The slip rings are the most important brush in DC machine.
What is the function of a split ring commutator?
The split rings cause the direction of the magnetic field in the armature to change direction as the motor rotates. If this didn't happen the motor would not rotate. Slip rings can be used for an AC motor which causes the direction of the magnetic field to change with the AC waveform.
Does a ac generator have a brush?
AC generators (alternators) usually have a dc supply to the rotor coils, supplied through slip-rings with carbon brushes. Because the slip-rings can be made very smooth the life of the brushes is greatly extended when compared with brushes on the commutator of a dc motor or an ac commutator motor. Cars generate electrical power with a three-phase AC alternator, connected directly to the battery through rectifier diodes. The alternator voltage is controlled by the voltage regulator, which works by controlling the dc supply to the rotor.
What will happen if slip rings are removed from a DC motor?
It won't work. The slip rings work in conjunction with the brushes to connect a rotating part of the unit with the stationary part. We need to couple current into and out of the rotor, and without the slip rings for the brushes to ride on, we can't do that, and the motor won't work.
What the main different between shunt motor and induction motor and AC motors?
induction motor is AC motor also synchronic motors are AC motors but second one has not slip but first one has slip . shut motor is DC motor
Which of the following isn't a component of DC motor?
slip rings
How many Slip rings in synchronous motor?
If the synchronous motor is single phase then there are two slip rings & if this motor is three phase so the slip rings are three in number. Correction; I have never seen a single phase synchronous motor. It would cost more that it was worth. A synchronous motor has a separately excited field. If the excitation comes from a stationary DC source it has 2 slip (collector) rings. A brushless induction motor has no slip rings because the exciter armature rotates and so do the rectifiers. A permanent magnet motor, used with variable frequency drives, is another type of synchronous motor that has no slip rings. A three phase motor with 3 slip rings is a Wound Rotor motor. Wound rotor motors are variable speed motors that were used for such applications as bridges and cranes before variable speed drives.
Slip rings and split rings?
Slip rings are used in AC while split rings are used in DC generators
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 is the basic difference between carbon brush of AC slip ring motor and carbon brush of Direct current commutator motor?
The main difference is in how the carbon brushes are used. In an AC slip ring motor, the brushes transfer power to the rotor through slip rings, whereas in a DC commutator motor, the brushes switch the current direction on the rotating armature to maintain torque and rotation. Additionally, the design and composition of the brushes may vary to accommodate the specific requirements of each motor type.
What is the differences between the slip and split rings?
Split rings are in AC generators ( alternating current) while slip rings are in DC current (direct current).
What is the important of brush in DC machine?
The slip rings are the most important brush in DC machine.
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
Do dc motors and generators has slip ring if so for what?
Yes a slip ring motor is there. There is a slip ring and a brush in the motor to add external resistance to the motor inorder to be able to control its speed.
What is DC generator?
because DC generator generates generally generate DC power but as it has slip rings which convert it into ac output power
When the slip ring induction motor is preferred?
larger synchronous motors start with a squirrel cage and run when dc is applied thru the slip rings small motors can have magnets in the rotor these can accelerate from rest to synchronous speed in a few seconds
Why a DC motor is called DC motor?
DC, in DC motor, is an acronym for Direct Current, which means that it works on direct electrical supply by a battery. In an AC motor, the motor runs on Alternating Current Supply from other sources other than batteries, such as electricity from your house.No, d.c. is not an acronym. It is simply an abbreviation."a word formed from the initial letters or syllables taken from a group of words"http://www.thefreedictionary.com/acronymYes, a word. "dc" is not a word.
