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Parvalux motor

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larry phelan 104/07/2020 12:49:30
770 forum posts
14 photos

Good afternoon all,

I need a 24 v dc supply to operate a Parvalux motor.

Any ideas how to go about it since I have only AC to hand 110,230 380 v

I do not have a 24v battery, nor any means of charging one.

Thanks in advance for any advice.

Frances IoM04/07/2020 12:54:30
781 forum posts
26 photos
simplest is two 12V batteries in series - however it depends on what current is required (car batteries will supply 40+ Amps but not for long - utility batteries will tolerate deeper discharges) and for what operation you need the motor for
Ian Parkin04/07/2020 13:00:51
806 forum posts
198 photos

Just get a 240v in 24dc SMPS ( switch mode power supply) off eBay you should only need a 5 amp

Ian Parkin04/07/2020 13:23:30
806 forum posts
198 photos

Such as

Ian Parkin04/07/2020 13:25:10
806 forum posts
198 photos

Or this style

Robert Atkinson 204/07/2020 13:26:01
705 forum posts
16 photos

Most, if not all Parvalux "DC" motors are brushed "universal" motors. This means they will run fine on AC, You just need a 24 V transformer (a dual 12V will do too).
A SMPS is overkill and may not actually work depending on the size of the motor and the design of the SMPS. Many do not like the inrush current of a DC motor with a heavy load. I'm not sure how Ian determined a 5A requirement.

Robert G8RPI

Robert Atkinson 204/07/2020 13:36:26
705 forum posts
16 photos
Posted by Ian Parkin on 04/07/2020 13:25:10:

Or this style

Personally I would not touch that with a barge pole (unless it was certified as insulating )

Clearly not compliant with regulations, it does not even have a part number. I would be concerned about it' safety.

Robert G8RPI.

Ian Parkin04/07/2020 13:37:17
806 forum posts
198 photos

Well assuming its the one i linked to the other day 5 amps is plenty

the motor will run fine on either of those PS

That motor is a PM ( permanent magnet ) motor so wont run on ac

Edited By Ian Parkin on 04/07/2020 13:42:03

John Haine04/07/2020 13:58:49
3183 forum posts
172 photos
Posted by Robert Atkinson 2 on 04/07/2020 13:26:01:

Most, if not all Parvalux "DC" motors are brushed "universal" motors. This means they will run fine on AC, You just need a 24 V transformer (a dual 12V will do too).

Robert G8RPI

Rather unlikely I think. A 24V motor is most likely to be a PM type or possibly shunt wound field.

Martin Kyte04/07/2020 14:05:39
1903 forum posts
34 photos

One piece of advice is just ask the question you want to have answered. Like I need a 24 DC supply at around 5 Amps. That way you won't get everyone and his dog second guessing what your motor is.



larry phelan 104/07/2020 14:21:27
770 forum posts
14 photos

OK Martin, that,s what I need.

ega04/07/2020 15:21:34
1752 forum posts
152 photos

If, as suggested, you used two 12V batteries you would need some way of charging these. Could this be a conventional car battery charger and is there some better way of maintaining charge in a car battery off the vehicle?

Edited By ega on 04/07/2020 15:22:07

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