0
For AC motor, you can change motor RPM by changing its supply voltage or by changing supply frequency. For DC motor, you can change motor speed by controlling armatyre voltage or field current.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoBy varying the voltage applied to the motor. A rheostat could be used to vary the voltage if you wanted to do this in an analog fashion. If you wanted to do it digitally you could use pulse width modulation (PWM) where you essentially turn on and off the power at precise times so that you average the desired power over a time period.
Add your answer:
Earn +20 pts
How do you reduce the rpm of a hydraulic motor?
Reduce the output flow of the pump supplying fluid to the motor
What propeller diameter is good for trust a bycicle. the propeller operated by a gas motor 44 cc at 3000 rpm?
See Aerobicle on Youtube.It's about 20 inches.
Should angle grinder RPM should be the same with the grinding disc?
The answer is it can be less. Most grinding discs show the maximum RPM allowed, it does not necessarily mean that you have to run at those RPM it means that in order to use the disc SAFELY you should not exceed that speed.
What does RPM ipm sfm stand for in hvac?
in the plumbing world what does SFM IPM RPM stand for
How do you calculate rpm of each stand motor in a continuous re-bar rolling mill please tell me formula for this?
As we all know no one knows the formulas of continuous rolling mill....but I provide you all the formulas related to Mill speed,Elongation,Reduction per pass,each stand RPM calculation,Reverse and forward cascading ,Groove factor,Groove design,Bar and RCS formulas,Mill RPM setting,passes needed to roll a section,and many more<br /> . CONTACT ME At 9464527750 OR Mail me at jatindersgk@gmail.com
Can rpm be adjusted on a split phase motor?
No, the nameplate RPM rating is governed by the amount of poles that a stand alone motor has. There are devices in the market place that can be used to control the motors speed but these are after market devices.
Why 2900 rpm motor is less price than 1450 rpm motor?
Materials for producing 2900 rpm motor is less than 1450 rpm one
Can a 2800 rpm motor replace a 1400 rpm motor for air compressor?
No
What is the relationship between motor POLE and RPM?
Relationship between motor rpm and no of poles
What RPM can you get out of a 440 cu in motor?
I believe redline is 5,000 RPM.
What is the maximum RPM does a 3 phase motor run at?
The formula for RPM is ; RPM = Hz x (120 (constant)) divided by the # of poles. Number of poles a motor has; # of poles = Hz x (120 (constant)) / RPM.
Can 2800 rpm motor replace 1400 rpm motor for centrifugal water pump?
No. The water pump is designed for a specific RPM. It will not operate correctly, and will probably be damaged, if you attempt to operate it at twice the design RPM.
How do you build an electric motor with over 2000 RPM?
an electric motor can be build with over 2000 rpm,by increasing the supply frequency.
How much rpm for 12 volt ac motor?
The formula for RPM is, RPM = Hz x 60 x 2/# of poles the motor has. To answer this question more information needs to be stated.
How do you control rpm of single phase motor without using variable frequency drive?
By changing the voltage through a potentiometer ( eg fan regulator )
Application of feedback control system in electrical?
One application of feed back control is where the speed of a motor has to be maintained at a certain RPM and the load it drives is variable. Feedback from the load tells the VFD (Variable Frequency Drive) motor controller what to do. As the load drags the motor speed down the feedback unit sends a electrical impulse to the VFD to increases the speed of the motor. As the load drops off the feedback unit sends a electrical impulse to the VFD to decreases the speed of the motor. These interactions keep the motor RPM at a constant speed. This is a very simplified version of what happens.
Why does 2003 Mitsubishi lancer rpm drop when ac is started and when is cold started rpm do not go um.what control the rpm?
Have your servo control checked
