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Old 02-22-2010, 12:04 PM   #1
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24v motor run on 12v


Can I run 24v dc motors with 12v dc power without damaging the motor ? Thanks

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Old 02-22-2010, 12:06 PM   #2
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24v motor run on 12v


Ayuh,... For alittle while... It'll be almost powerless,+ have overheating issues...

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Old 02-22-2010, 12:23 PM   #3
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24v motor run on 12v


You can also connect two 12 volt batteries in "series" to get 24 volts.

Or use a 12 to 24 volt DC to DC converter like these...
(Pay attention to the watts and ask if they can be used with a motor)
http://www.powerstream.com/dc24.htm
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Old 02-22-2010, 12:45 PM   #4
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24v motor run on 12v


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Originally Posted by dh 1961 View Post
Can I run 24v dc motors with 12v dc power without damaging the motor ? Thanks
Yes, it will run 1/2 speed only. It will not hurt the motor at all.
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Old 02-22-2010, 12:50 PM   #5
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24v motor run on 12v


It will work to some extent but you must be careful not to overload it.

At what point of loading the motor becomes overloaded is unpredictable.

With that much deviation from the correct voltage, any overload or overheating protection may or may not kick in soon enough to prevent damage.
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Old 02-22-2010, 02:30 PM   #6
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24v motor run on 12v


Many DC motors are designed/used to run at varying voltage, providing varying speeds for their application. It likely will not be a problem, bearing in mind the reduced speed and torque the motor will produce.
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Old 02-23-2010, 11:03 AM   #7
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24v motor run on 12v


DC motors are designed to run at slower or faster speeds than their nameplate rating (Base Speed).
DC motors also have plenty torque at reduced speeds. Thats why they are so popular over all these years and still being used in many applications.
At 1/2 speed you should get close to full torque on a DC motor.

The most important thing to consider is cooling the motor. Independent blowers are used to cool DC and AC motors that run below base speed.
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Old 02-23-2010, 07:44 PM   #8
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24v motor run on 12v


I have work on alot of DC motours and they are best suited with varibale speed espcally with low speed range where the torque really need it most case they useally called constant torque motor as well. but once you speed up above the base speed the torque do fall off pretty fast.

But with modern VSD { variable speed drive } it comming up pretty good and they can replace a bit of DC motor but not every location can benfit it.


Oh yeah.,, run 12 volts to 24 volt DC motour it do not hurt at all but it will run about half speed depending on which type of winding it have { beside shunt or compound it will be pretty much consant speed }

Merci,Marc
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Old 02-25-2010, 09:59 PM   #9
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24v motor run on 12v


The heater blower motor in your car is designed to run on 12 volts. When a lower speed is selected, a resistor is placed in series with the motor, thus reducing its voltage.

The same thing will happen with a 24 volt motor with 12 volts applied. It'll just run slower.

Since it draws less current at reduced voltage, it produces less heat, thus needing less cooling.

Rob

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