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DC motors generally use commutators. Also some single phase AC motors use commutators. They are the type which which have their field windings connected in series with their armatures and they can typically be found in home vacuum cleaners, DIY-type ac electric drills, etc.
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What are the disadvantages of DC motor?
It depends entirely on the motor design. The only universal disadvantage of a DC motor (vs. an AC motor) is the need for a DC power supply (DC power is more difficult to transmit efficiently over long distances, hence the use of AC for typical power grids). Typical brushed DC motors (the cheapest and hence one of the most common type of DC motor) tend to wear out eventually due to friction and draw MUCH higher current when stalled than when turning, which can cause overheating. They are also typically heavier than AC motors with similar specs. Of course all of these problems can be eliminated by using a (slightly more complex) brush-less motor design.
What type of ac motor will operate at a constant speed from no load to full load?
The Synchronous motors will operate at a constant speed from noload to fullload. Even it is classified as an AC motor, we have to fed the motor both AC and DC supplies. That we have to supply DC to the Field (Normally Rotor) and AC to the Armature (Normally Stator).
What are the disadvantages of servo motors?
Top Ten DC Servo (brush type) Disadvantages (besides higher relative cost):1) Requires "tuning" to stabilize feedback loop.2) Motor "runs away" when something breaks. Safety circuits required.3) Complex. Requires encoder.4) Brush wear limits life to 2,000 hrs. Service is then required. This system causes friction between the brush and commutator, which requires replacing and maintenance5) Peak torque is limited to a 1% duty cycle.6) Motor can be damaged by sustained overload.7) Bewildering choice of motors, encoders, servo drives.8) Power supply current 10 times average to use peak torque. See (5).9) Motor develops peak power at higher speeds. Gearing often required.10) Poor motor cooling. Ventilated motors are easily contaminated.
Can a motor work as a generator?
Turn the shaft ;)A brushed-commutator dc motor can be turned into a generator by connecting its shaft to another source of power to make it turn at the correct speed.A diesel or gas engine - or another type of electric motor, such one that runs on 120V or 240V single phase ac - could be suitable.
What type of motor is used in watch?
mini stepping motor
Which type of motor uses a commutator?
Commutator is a device in a motor through which supply is fed.
How rotar rotates of DC motor?
The rotor in a DC motor rotates because the magnetic field in either the rotor or the stator is constantly changing. If it is a brush type DC motor, then the rotor field changes as the rotor moves to a new position on the commutator. If it is a brush-less type DC motor, then there is some circuitry associated with the stator that changes the stator field.
Which type of electrical motor is used in room clenar?
Vacuum cleaners require a high power to weight ratio in the motor and for that reason a commutator motor is used although the lifetime is relatively short for this type of motor before the brushes need replacing.
Who is discovered motor?
As a motor refers to the electric verison (petrol is an engine) the first commutator-type direct current electric motor capable of turning machinery was invented by the British scientist William Sturgeon in 1832
What type of motor is a Johnson series J0005530?
The type of motor which is known as the Johnson series J0005530, is a fuel-injected motor which uses pistons to operate.
What happens if the motor operate but is noisy?
You didn't say what type of motor. If an electric motor it could be the shaft bearing(s) are worn.
What is meant by sychronous motor?
This type of motor is electrically identical with alternaner that means ac generator and it is operate at constant speed.
What type of alternative energy is used to operate the windmill?
A motor is used to power a windmill.
Where is the pancake motor normally used?
A pancake motor is a type of electric motor, with a flat commutator and vertical shaft, used typically in slot cars. Typically, the pancake motor is found mostly in Aurora HO cars, and today is used mostly in reproductions of 1960s and 1970s Aurora HO cars.
What the applecation of universal motor?
universal motor r mostly used for domestic purpose applicatios like the vaccum cleaner,foodprocessors and mixeshair driers,coffee grinders,electric shavers etc....another applications for blowers.
Which type of motor is used in wet grinders?
A universal motor is used to operate a food mixer.
What type of motor is used in a 110V ac drill?
The motor for a 110v ac drill is a 14 amp motor. The 110v drill is used for household products and construction work. This is a tool that is not limited to wholesale purchases.
