What is the difference between AC and DC motors?
Quick Answer
Ohio Electric Motors indicates that the main difference between AC and DC motors is the power source. AC motors are powered by an alternating current while DC motors use a direct current as a power source.
Continue ReadingFull Answer
AC and DC motors also differ in their construction. AC motors do not use brushes. DC motors use brushes. The use of brushes tends to increase maintenance, shorten the life expectancy and limits the speed of the motor. AC motors can withstand wear and tear and have a longer life span. DC and AC motors have differing means of speed control. While DC motors are controlled by varying the armature winding's current, AC motors simply vary the frequency.
An induction motor and a synchronous motor are two types of AC motors. An induction motor uses a magnetic field on a rotor that is created by an induced current. A synchronous motor is powered by a current through slip rings or a permanent magnet. Synchronous motors usually run much faster than induction motors because of the presence of slip rings. DC electric motor repair is much more expensive than AC electric motor repair. Paper producing machines and steel mill rolling machines are a few examples of a DC electric motor.
Learn more about ElectricityRelated Questions
-
Q:
How do you get replacement AC power cords?
A: You can get replacement AC power cords by contacting the device or appliance's authorized service center and asking if they carry replacement power cords f... Full Answer >Filed Under: -
Q:
How does a voltage stabilizer work?
A: A voltage stabilizer is connected to a power source that charges internal capacitors and batteries, which then supply power to connected devices rather tha... Full Answer >Filed Under: -
Q:
What is an LED voltage drop?
A: An LED voltage drop describes the diminishing of the brightness of LED lights on a strip the farther the lights are from the power source. This is because ... Full Answer >Filed Under: -
Q:
How do you control the speed of an electric motor?
A: Control the speed of an electric motor in a DC series circuit by placing a potentiometer or a rheostat between the motor and the power source. Adjusting th... Full Answer >Filed Under:
