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starter is used in dc motor to reduce the initial starting torque...so that the dc machine could be protected from damage....
..and to avoid max ..current flowing ..from it it can damage whole ..moter structure
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∙ 11y ago
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Why commutator are not used in ac motors?
Because, the commutator segments are used for converting AC to DC.
What is reason for armature over voltage in 450 kw dc motors?
Here we used dcon digital dc drive
Type of motor used by electric train?
dc series motors are used because of torque vs speed characteristics.
What are brushes with reference to DC motors?
Bushes, with reference to DC motors is a brushed DC motor which is a motor that designed to run from a direct current (DC) power source. This type of motor is an internally committed electric motor.
Which is better a AC or DC motor for an EV?
I'd like to know the arguments in favor of AC & DC motors to be used in EV's Art Sestak asestak@roadrunner.com
Where do you find dc motors?
Examples of DC electric motors are the starter in your car and the motor in a DC controlled elevator, to name just two.
What is the best type of DC motor for use with DC?
Basically anything that works with batteries usually works with DC motors, i.g. your hard drive, your cellphone vibrator, toys, etc. Also, even for large motors, the DC motor has the advantage of being easily controlled by input voltage. Induction motors, on the other hand, can use controlled input voltage but they will have to deal wth low torque when the voltage is low. DC motors are used for those little fans in your computer. Also, CD players also use DC motors to spin the discs. DC motors are important where absolute speed control and feedback are necessary. For your household appliances, including fan motors, those are AC motors, cheaper for the industrial strength and more efficient.
Why dc series motors cannot be used in home?
DC series motors run on DC power. Homes have AC power, not DC power. You could use DC motors in homes if you have a power supply or use a battery, but it is usually more cost effective to use an AC motor.
Which motor is used to drive metro rail?
DC Motors.
What type of motor is used in a conveyor?
dc shunt motors
Where is a DC motor used?
I know of fridges that have DC motors. Beyond that, I'd hate to guess.
Are DVD DC motors and DC motors same?
actually dc motors are of several types in which one of them are 1).brushed 2).brushless ...so the motor present in DVD are the brushless dc motors ...
Why DC motors are not used for irrigation purposes?
because dc supply is not available at house hold applications.
What type of DC motor used by fan?
DC motors are commonly used in cars and normally run on 12 v. DC motors can be broadly classified as series-wound and parallel-wound and for fans the parallel-wound version is used with the field winding placed in parallel with the armature (for domestic use AC fans using induction motors are normally used).
Which type of motor is used for traction applications?
DC series motors...
Are the fan motors on fanuc ac spindle motors ac or dc?
usually ac 110v even on the dc motors
Why use resistor grids in DC motors?
resistor grids were used in DC MOTORS during dynamic braking. in this method of braking a resistance ( variable) is connected across armature winding so as to dissipiate the energy. the energy thus dissipiated is used for braking of motors.
