Giles
Retired tool & Die and Mechanic
Can I use a variable speed switch with this type motor?
http://www.surpluscenter.com/item.asp?item=16-1403&catname=electric
http://www.surpluscenter.com/item.asp?item=16-1403&catname=electric
Can I use a variable speed switch with this type motor?
http://www.surpluscenter.com/item.asp?item=16-1403&catname=electric
Can I use a variable speed switch with this type motor?
http://www.surpluscenter.com/item.asp?item=16-1403&catname=electric
What type of switch was you going to use ?
It can be operated at a lower speed but you would have to use the correct controller.
DonL
If one used the correct controller would it be a switch?
Would it be a VFD controller?
You can vary the air output and reduce the amp draw by restricting the air inlet. Cardboard is cheaper than a VFD.
JW:If one used the correct controller would it be a switch?
Would it be a VFD controller?
And a VFD to control the linear actuator motor!
It would be a metal or cardboard restrictor. So says the smart a&% student.
Lest anyone doubt my point, here is a Fasco rig that has ALREADY heard my idea and put it into production.
http://www.surpluscenter.com/item.asp?item=16-1404&catname=electric
Remember the first and second rule of design : KISS
On an electric motor to control the speed one has to control both voltage and frequency thus no switch but a variable frequency drive is used to control the speed.
I have a variable motor speed controller that I have used for 20+ years to change the speeds infinitely on a die grinder. Full speed is fine using a carbide cutter.....but switch to a paper roll with an extension and it's way to fast.....
I will test it for you and see if your correct....I am somewhat skeptical as to the HZ being reduced with the voltage on the item I have due to it's small size....and the fact that is at least 20 years old and there are likely no "hi-tech" components in it....
I have a Fluke meter that reads frequency.....or HZ as it is usually called these days. I use it all the time on generators.
I'll report back tomorrow on what I see on my meter...
The company that offered the speed controllers may not be still making them......Their business went down as almost all electric hand tools started to come with built in speed control.....Their products were advertised as being able to control speed without a loss of torque or drive power and they work very well.....I don't recall where I bought it but it might have been Grainger.....It is fused and has a rocker switch for full speed or variable and a dial for speed......It is small ...maybe twice the size of a pack of cigarettes.....I will have to look at it's current rating.....My guess is 10 @ 120volts.......I have used more than one and they were all the same in size and operation........and cost under $100.....
I don't think so Tim.On an electric motor to control the speed one has to control both voltage and frequency thus no switch but a variable frequency drive is used to control the speed.
Can I use a variable speed switch with this type motor?
http://www.surpluscenter.com/item.asp?item=16-1403&catname=electric
You can change speeds on a motor by varying the frequency or the voltage, but you don't need to do both.