• PHISHING SCAM attempt TARGETING HOBBY-MACHINIST members. It has been brought to our attention that a pop-up survey is soliciting userfeedback from H-M members. In exchange for survey information, the user is given an opportunity to win a prize if they pay for shipping charges. This is NOT a Hobby Machinist program, survey or contest. DO NOT click through the links. Close your browser immediately and restart your computer. Clear cookies, cache and log back into Hobby Machinist. Again, this is NOT a Hobby Machinist contest or survey - IT IS a PHISHING SCAM attempt to get your credit card information.To close this notification, click the "X" in the top right corner of this box.

4 Ways to Start a Single Phase Motor

Ulma Doctor

Infinitely Curious
H-M Platinum Supporter
Joined
Feb 2, 2013
Messages
1,277
i made a short video to demonstrate starting a small single phase motor.
these principles can be used to start just about any single phase motor, but these are NOT the only ways of getting the work done :grin:

in demonstration, there are 2 latching circuits, a latching switch and a toggle switch respectively, coupled with different relays.
so, if you got nothing better to do for the next 5:38 , have a look!



if there is interest,
i'll provide additional information.


thanks for reading, watching and participating in the exchange of information
 

Tinkertoy1941

H-M Supporter - Sustaining Member
H-M Platinum Supporter
Joined
May 10, 2012
Messages
137
Can you show us how to also reverse a single phase small motor with a video and sketches!
Thanks
 

C-Bag

Ned Ludd's bro
H-M Supporter Gold Member
Joined
Feb 9, 2017
Messages
1,669
thanks for reading, watching and participating in the exchange of information
Thanks Doc! Looking fwd to more. Dunno if there's going to be much of an exchange as with me it's going to be all one direction :) But of course I've got a weird one. I've got a 1/3hp Dayton Split Phase 40rpm gear motor my brother gave me. After putting our heads together we finally got it to go. I mounted an extra diamond wheel on it and wanted to make it into tool bit hone and it worked fine. But it seemed to have a buzz about it last I used it and now won't start, only buzz. I suspect a start cap but it doesn't have a cap on the exterior like on my old Atlas 7b motor had. This motor can be wired also for reverse which would be handy.
 

Ulma Doctor

Infinitely Curious
H-M Platinum Supporter
Joined
Feb 2, 2013
Messages
1,277
Can you show us how to also reverse a single phase small motor with a video and sketches!
Thanks
thanks for looking!


I did a video like that about 2 years ago, with a Square D drum switch and a Leeson motor
If you can post a picture of the switch and motor you have, i’m sure i can make it run.

 
Last edited:

Ulma Doctor

Infinitely Curious
H-M Platinum Supporter
Joined
Feb 2, 2013
Messages
1,277
Thanks Doc! Looking fwd to more. Dunno if there's going to be much of an exchange as with me it's going to be all one direction :) But of course I've got a weird one. I've got a 1/3hp Dayton Split Phase 40rpm gear motor my brother gave me. After putting our heads together we finally got it to go. I mounted an extra diamond wheel on it and wanted to make it into tool bit hone and it worked fine. But it seemed to have a buzz about it last I used it and now won't start, only buzz. I suspect a start cap but it doesn't have a cap on the exterior like on my old Atlas 7b motor had. This motor can be wired also for reverse which would be handy.
i'm happy you find interest, thank you!
Sorry C-Bag, your gear motor motor may be toast :mad:.
your start winding may have a fault, or possibly a fault in the centrifugal switch or associated wiring
split phase motors don't have start capacitors.
it won't hurt to take it apart before you go get another.
sometimes the gear reduction units can be transferred to other motors of similar manufacture.
 

Ulma Doctor

Infinitely Curious
H-M Platinum Supporter
Joined
Feb 2, 2013
Messages
1,277
here is a easy to follow drawing of the first switch presented in the video as i wired it



Latching Switch.jpg
 
Last edited:

Ulma Doctor

Infinitely Curious
H-M Platinum Supporter
Joined
Feb 2, 2013
Messages
1,277
here is the drawing for the second starting method in my video

Latching Circuit 1.jpg
 
Last edited:

Ulma Doctor

Infinitely Curious
H-M Platinum Supporter
Joined
Feb 2, 2013
Messages
1,277
and here is the drawing for the 4th method as shown in the video


TOGGLE SWITCH LATCH CIRCUIT.jpg
 
Last edited:

Ulma Doctor

Infinitely Curious
H-M Platinum Supporter
Joined
Feb 2, 2013
Messages
1,277
here is a video for the circuit in post 7 above

 

Dabbler

Administrator
Staff member
H-M Supporter Gold Member
Joined
Oct 11, 2016
Messages
1,434
Mike you have a great youtube channel! thanks for making those videos!
 

extropic

Active User
Registered
Joined
Nov 24, 2014
Messages
727
Thanks for the tutorial Mike. The video, combined with the schematics, makes it useful for me. Good Job.
 
It can take up to an hour for ads to appear on the page. See our code implementation guide for more details. If you already have Auto ad code on your pages there's no need to replace it with this code
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock