I'm trying to convert a hand crank meat grinder into an electric one. I know that the motor and grinder need to be connected by 2 pulleys and a wheel. The motor I have is 1/3 HP, 3450 rpms and comes from a dishwasher. There is some kind of coil in the wiring before the current gets to the motor. Do I need this coil/capacitor for the motor to work or can I just splice the motor to an electric cord and add an on/off switch? I just want to make an electric meat grinder and want to know how to properly make the motor turn.
2006-11-29 02:51:59 · 5 answers · asked by paul67337 7 in Science & Mathematics ➔ Engineering
Whether or not a motor needs a capacitor depends on the type of motor. There are at least 5 or 6 different types of single phase motor, some requiring capacitors, some not (pf correction aside).
It is likely that the device wired to the motor in the dishwasher is required where ever you use it. It is also usual for start capacitors to be mounted on the side of the motor but may not always be the case. A capacitor is normally cylindrical and will have a value in micro farad.
Take a look at the link below and see if any of the options on it resemble what you have.
http://www.tcf.com/TCFBlower/pdfs/engr_data/ED1100.pdf
They don't mention another type that is often used in domestic appliances but is clear to identify by the fact it has brushes and commutator, this type would not normally need any separate control
I have even found a dc motor in a standard washing machine, obviously a dc motor requires some other circuitry to use on the mains. I don't know how common this would be to find since I don't take apart too many domestic appliances.
2006-11-29 13:54:09 · answer #1 · answered by Poor one 6 · 1⤊ 0⤋
Some motors require a "Starter Capacitor", it give that extra Thump to get it spinning. Usually this when a motor in under a heavy load as in a Dishwasher. It should work OK without it for your meat grinder. The only thing is it may start up like a Shop Grinder; slowly getting up to speed. Also, it may have to wind down once you turn it off, if, you not have like a little brake to apply a stopping force.
2006-11-29 03:03:17 · answer #2 · answered by Snaglefritz 7 · 0⤊ 0⤋
maximum dishwasher autos want a initiate capacitor(from my experience as an equipment technician) they move in sequence with between the windings,as for the cost of that capacitor-it ought to nicely be something-likely between 10 to twenty-5 MFD.
2016-11-27 21:03:01 · answer #3 · answered by kennie 4 · 0⤊ 0⤋
The motor will have an inbuilt capacitor for starting which will be on a separate field winding to the main winding. The component you are describing is something else - possibly to suppress power surges during starting & stopping.
It is advisable to keep it - but not essential.
2006-11-29 13:09:26 · answer #4 · answered by Ben O 6 · 0⤊ 0⤋
Single phase ac motors (which I assume is what this is) need that starting capacitor mentioned already.
Capacitors can also be used to make a motor more efficient (power factor correction).
Leave the thing on there.
2006-11-29 12:20:03 · answer #5 · answered by B W 2 · 0⤊ 0⤋