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Can a rheostat be used to control speed on a capacitor run motor?
Wiki User
∙ 11y ago
No. If you attempt to reduce the voltage to a cap start motor by using a rheostat, you can destroy the motor.
Wiki User
∙ 11y ago
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Does a start capacitor control speed?
No. A starter capacitor is just that....for start up purposes only. It does not control speed....this is done by selecting different phases of the running motor wired individually. Motors that rev up and down are called stepper motors and can be controlled by dedicated operating control boards that constantly monitor amps and load resistance.
How regulator controls the speed of AC motor?
the motor should only rotate in a rated speed,if the speed is more than rated speed then the motor will be damaged........to control the speed of motor a rheostat should be connected to the field side of motor......by variying the rheostat we can control the speed of motor......
What is vf speed control?
It is used for sensorless motor control. With vf speed control u can control speed of any induction motor.
What is a split phase motor with relay and capacitor called?
A capacitor start motor is a split phase motor that uses a capacitor in series with the start winding to cause a greater phase shift, resulting in greater starting torque. It uses a centrifugal switch to switch out the start winding and capacitor once the motor is up to speed. I assume this switch is what you're referring to as a "relay".
What are ceiling fan capacitors for?
There are a variety of capacitor sizes in ceiling fans. The capacitor is dependant upon the characteristics of the fans motor. Whether it is a single speed, two speed or three speed. If you think it is the capacitor at fault for the fan not operating, take the fan down and open it up. This will give you the exact sizing for your fan.See sources and related links below.
Can you use a rheostat on ac motor?
Yes you can use a rheostat to control the speed of an ac motor as long as it is correctly sized (power). A better way would be to use a triac control.
How do you you control the speed of a dc motor?
A Potentiometer, an adjustable resistor, is connected between the power source and the motor. An AC motor would use a Rheostat .
How do you change the speed of a motor in a circuit?
By varying the Resistance to the motor. These Devices are called RHEOSTAT'S
Can a volume control switch act as a variable control switch for a AC fan motor or a similar motor household only?
Putting a rheostat in series with a motor is not necessarily the best way to control the motor speed. The rheostat works by converting what electricity would have been going to the motor into heat. An audio rheostat would need to be sized appropriately. Putting a rheostat in series with a synchronous motor that is found in some fans is not particularly good, either. Since the motor is phase-locked with the alternating current would simply make the motor turn with less power at the same speed until it starts 'tripping over itself'. That leads to overheating. A better option is to use a solid-state motor controller. That delivers full voltage to the motor but rapidly cycles on and off. As you turn the controller up the power is more on than off.
Does a start capacitor control speed?
No. A starter capacitor is just that....for start up purposes only. It does not control speed....this is done by selecting different phases of the running motor wired individually. Motors that rev up and down are called stepper motors and can be controlled by dedicated operating control boards that constantly monitor amps and load resistance.
What are 2 mathod of speed regulation in DC motor?
The speed of a dc motor can be regulated by the following means:By varying the supply voltage and byUsing a variable rheostat.
How regulator controls the speed of AC motor?
the motor should only rotate in a rated speed,if the speed is more than rated speed then the motor will be damaged........to control the speed of motor a rheostat should be connected to the field side of motor......by variying the rheostat we can control the speed of motor......
What is vf speed control?
It is used for sensorless motor control. With vf speed control u can control speed of any induction motor.
What is speed controller?
It is used for sensorless motor control. With vf speed control u can control speed of any induction motor.
How do you connect capacitor to a capacitor start motor?
A start capacitor is wired in series with the motor's start winding via a centrifugal start switch. The switch disconnects the capacitor and start winding once the motor has reached a pre-determined minimum speed. The motor then continues to run on its main field winding. A different design uses a "start-and-run" capacitor which remains in circuit whilst the motor is running.
What is the common application for capacitors in electric motors?
There are 2 types of capacitor including starting capacitor and running capacitor running capacitor are used to improve the power factor of motor. starting capacitor used in split phase induction motor . starting capacitor may isolate from motor,s starting winding through of centrifugal switch after getting motor 90% of it,s rated speed.
What is a split phase motor with relay and capacitor called?
A capacitor start motor is a split phase motor that uses a capacitor in series with the start winding to cause a greater phase shift, resulting in greater starting torque. It uses a centrifugal switch to switch out the start winding and capacitor once the motor is up to speed. I assume this switch is what you're referring to as a "relay".
