Didn't see this the first time.Still unsure if it's 1 or 3 phase power. Any easy way to tell?
If you had to disconnect three wires from the motor then it is a three phase.
Didn't see this the first time.Still unsure if it's 1 or 3 phase power. Any easy way to tell?
Didn't see this the first time.
If you had to disconnect three wires from the motor then it is a three phase.
Don't forget earthing conductors when you count. It's 3 actives.
Induction motors are easily recognized - https://www.electrical4u.com/construction-of-three-phase-induction-motor/
Didn't see this the first time.
If you had to disconnect three wires from the motor then it is a three phase.
Counting the number of wires from the motor is not a clear cut way of deciding whether the motor is single or three phases. Most lathes have the ability to run in reverse. Reversing a three phase motor is easy by swapping two phases over. With a single phase motor you need to reverse either the run winding or the start winding to get the motor to reverse.I was thinking the same thing .... 4 wires including earth. however if you have the cover off the wiring as in this case, you can ignore which ever wire is screwed to the body of the motor
Counting the number of wires from the motor is not a clear cut way of deciding whether the motor is single or three phases. Most lathes have the ability to run in reverse. Reversing a three phase motor is easy by swapping two phases over. With a single phase motor you need to reverse either the run winding or the start winding to get the motor to reverse.
If there is a cylinder looking thing on the outside of the motor which is capacitor, the motor will be a single phase motor.
Counting the number of wires from the motor is not a clear cut way of deciding whether the motor is single or three phases. Most lathes have the ability to run in reverse.
Nah, you'll check if you have it, find its not there, buy a roll ..... then put it there beside the roll that has now magically appeared ... or is that just me ?Not really a tool per se, but I went to my mate's "collectibles" shop for a coffee, and he asked me if I wanted an "old stand" that he was throwing away.
"Does the Pope wear a funny hat"?
It's all metal, it's Australian, but given it has the word "emission" on it I'm guessing from the late '70s early '80s?
I only keep a few sizes of hose (no emissions stuff) so I'm thinking I'll use the top two bars for rolls of electrical wire.
It might stop me from buying sh#t I've already got, if I can actually see what I've already got.
View attachment 239476
I've put 3 rolls of green wire on It so far.Nah, you'll check if you have it, find its not there, buy a roll ..... then put it there beside the roll that has now magically appeared ... or is that just me ?
Yes, many of us do that sort of thing. Me included.I've put 3 rolls of green wire on It so far.
That VSD should do the job OK.You guys are cleverer than I.
Got a few pics of cut wires and motor. Apparently the lathe fell over, and landed on the motor. Managed to bang the cover in shape (as per someone's advice) and the fins now spin well. Spins freely with no observable faults. Have all the stuff to remount.
Though, need to sort out the power.
1. Reckon I can just 'twist, solder and shrink' where it's been snipped?
2. Again, thanks to someone's advice, motor's a 3-phase so I think I'll get one of these rather than rewire the place: https://www.vevor.com.au/variable-f...0v-1-or-3-phase-in-3-phase-out-p_010276894883 . Look about right (motor is apparently 0.75kW/1hp)?
Goal #1 is to see it spin. Also missing key, and hoping emergency stop button isn't stuck in 'off'...
There some interesting motors out there, both in single and three phase. Before VSD's and soft starters there was also some interesting ways to change the speed and torque as well.The motor in my lathe (a Blomqvist, a Swedish South Bend model A copy) is even more complicated than that. Not only can it be reversed, it is also two speed.
Roger