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Advantages of AC MOTORS (1 Viewer)
- Thread starter ffsasuke
- Start date
me121
Premium Member
AC Advantages
* Voltage can be stepped up and down.
* Can be transmitted at high voltage.
* Less energy loss in transmission.
* Simple slip ring commutator is used.
AC Disadvantages
* Back emf opposes supplied emf.
* Emits EMR, so wires need insulation and shielding.
* Frequency must be sent to consumer at 50Hz. This has to be maintained and monitored.
Source: Biki, http://www.boredofstudies.org/wiki/...d_DC_generators_and_relate_these_to_their_use
* Voltage can be stepped up and down.
* Can be transmitted at high voltage.
* Less energy loss in transmission.
* Simple slip ring commutator is used.
AC Disadvantages
* Back emf opposes supplied emf.
* Emits EMR, so wires need insulation and shielding.
* Frequency must be sent to consumer at 50Hz. This has to be maintained and monitored.
Source: Biki, http://www.boredofstudies.org/wiki/...d_DC_generators_and_relate_these_to_their_use
twilight1412
Member
AC Advantages
* Voltage can be stepped up and down.
This is an advantage of using AC current over DC and not a reason why you should use a AC MOTOR over a DC one
* Can be transmitted at high voltage.
* Less energy loss in transmission.
same with these
reasons should look more like this
*less moving parts = less wear
AC Disadvantages
* Back emf opposes supplied emf.
DC also has this
it is also more difficult for AC to be converted between a motor/generator
* Voltage can be stepped up and down.
This is an advantage of using AC current over DC and not a reason why you should use a AC MOTOR over a DC one
* Can be transmitted at high voltage.
* Less energy loss in transmission.
same with these
reasons should look more like this
*less moving parts = less wear
AC Disadvantages
* Back emf opposes supplied emf.
DC also has this
it is also more difficult for AC to be converted between a motor/generator
Last edited:
Advantages of AC
- AC can be transformed
- AC generators have fewer moving parts and are thus easier and cheaper to maintain
- AC produces less heat, friction and are lighter and more efficient than their DC conterparts
- DC does not need as much insulation as DC has no high frequency electromagnetic radiation.
- DC generators also produce a back emf, but the transmission of DC has no energy loss due to induction in adjacent lines and metal structures
- AC will produce eddy currents due to the production of a back emf
- AC needs thicker insulation to minimise interference with other electronic equipment
- DC cannot be transformed
- DC generators are not as reliable due to sparking and wear across the split ring commutators.
- Ac motors are brushless and develop a higher torque.
- The speed and the power developed can be varied with the aid of a controller.
- They can operate at higher voltages hence reducing the size of wire.
I think ac motors are better than dc.
Thanks for your information.
- The speed and the power developed can be varied with the aid of a controller.
- They can operate at higher voltages hence reducing the size of wire.
I think ac motors are better than dc.
Thanks for your information.