How to wire single phase 6 wire motor?

Walkers · Mar 26, 2023

I have a 5 horse, single phase, 230vac, capacitor start, motor that has 6 leads, going to 3 sets of windings. The wires are the same color, and any tags are long since gone. I can identify each set of windings. How do I wire this?

Thanks,

Cruzan80 · Mar 26, 2023

They are not all equal, if it is a 1ph motor. If there are three sets of windings, that usually indicates a THREE phase motor. Unless you mean two windings for run, and a start winding? Any data on the motor itself?

fitter30 · Mar 26, 2023

Take it to a motor shop.
Look on you tube

Walkers · Mar 26, 2023

Cruzan80 said:
They are not all equal, if it is a 1ph motor. If there are three sets of windings, that usually indicates a THREE phase motor. Unless you mean two windings for run, and a start winding? Any data on the motor itself?

Most definitely single phase, most definitely 3 distinct sets of windings. I have seen the motor run on single phase power, it is rated single phase. No start switch.

Dagny · Mar 26, 2023

what do you mean no start switch?

Dagny · Mar 26, 2023

can you put an ohm meter to them

Dagny · Mar 26, 2023

did you have an end off?

wyliesdiesels · Mar 26, 2023

Walkers said:
Most definitely single phase, most definitely 3 distinct sets of windings. I have seen the motor run on single phase power, it is rated single phase. No start switch.

Ummm a 3 phase motor can run on single phase. But youll eventually burn it up if the current draw isnt controlled

wyliesdiesels · Mar 26, 2023

Walkers said:
Most definitely single phase, most definitely 3 distinct sets of windings. I have seen the motor run on single phase power, it is rated single phase. No start switch.

Make and model of motor?

Cruzan80 · Mar 26, 2023

Walkers said:
Most definitely single phase, most definitely 3 distinct sets of windings. I have seen the motor run on single phase power, it is rated single phase. No start switch.

How is it rated single phase? Is there a motor plate? Seeing it run on single phase power is not mean it is set up for running like that originally.

No start switch meaning what? Almost all single phase motors (especially with start capacitors) have a way of dropping the start circuit out. Either thru something like a relay, centfrigul switch etc.

Walkers · Mar 26, 2023

Dagny said:
what do you mean no start switch?

what I mean by 'no start switch', is that there is no centrifugal start switch.

Dagny said:
did you have an end off?

both ends.

wyliesdiesels said:
Ummm a 3 phase motor can run on single phase. But youll eventually burn it up if the current draw isnt controlled

it has a single phase 230v rating plate.

wyliesdiesels said:
Make and model of motor?

have to get that next I am over there. Unfortunately nothing comes up and the company has been absorbed. I want to say it is a Seas, or seyas, something like that.

Walkers · Mar 26, 2023

Cruzan80 said:
How is it rated single phase? Is there a motor plate? Seeing it run on single phase power is not mean it is set up for running like that originally.

No start switch meaning what? Almost all single phase motors (especially with start capacitors) have a way of dropping the start circuit out. Either thru something like a relay, centfrigul switch etc.

See above.

Cruzan80 · Mar 26, 2023

Next step would be setting up a drawing showing what goes where, and getting continuity/resistance levels between sets of wires.

Worst case, label them A-F, so we can all talk the same language.

Also, what do the capacitors look like, and how many of them? I have seen 5hp 1ph motors with start caps, and with start/run caps (they looked different).

Walkers · Mar 26, 2023

Rating plate

The capacitor has no tag on itbut is about 2" around 10" long, single capacitor. It just hung of a bracket on the side.

Cruzan80 · Mar 26, 2023

Black plastic, or metal colored?

Guessing start cap, see 100uF/360V on the tag.

Walkers · Mar 26, 2023

Cruzan80 said:
Black plastic, or metal colored?

Guessing start cap, see 100uF/360V on the tag.

Aluminum case, yeah I didnt catch that on the plate.

dogdog · Mar 26, 2023

CHeck for ohms and see if all coils are same.l ohm or inductance.

From the plate, that motor most likely a 3ph motor. If you swear it ran on single phase 230v before then check and see if some one have converted it to run single phase with capacitors. One guy did that here with a posting before with lots of info. I just remember its some guy into photo.

PCustoms · Mar 26, 2023

dogdog said:
From the plate, that motor most likely a 3ph motor. If you swear it ran on single phase 230v before then check and see if some one have converted it to run single phase with capacitors. One guy did that here with a posting before with lots of info. I just remember its some guy into photo.

How you figuring that?

There's 2 pretty obvious clues on the nameplate that you aren't correct....

mike93lx · Mar 26, 2023

PCustoms said:
How you figuring that?

There's 2 pretty obvious clues on the nameplate that you aren't correct....

Lol. Like where it says 1~?

BillK · Mar 26, 2023

dogdog said:
From the plate, that motor most likely a 3ph motor.

Dont know how you are coming up with that ???? The very first line on the plate says 1 Phase.

dogdog · Mar 26, 2023

PCustoms said:
How you figuring that?

There's 2 pretty obvious clues on the nameplate that you aren't correct....

European motor
208v-230v

But you might be right. PSC motor doesn’t use centrifugal switch.

PCustoms · Mar 26, 2023

mike93lx said:
Lol. Like where it says 1~?

That was the most obvious one....

Cruzan80 · Mar 26, 2023

When I put the name into Google, saw another that had a relay on top. Guessing that is what energizes the start capacitor. Until we know more about the leads, it is all guesswork.

Only way I can make the math work in my head is if the OP is counting two run windings T1-T4, and a star winding T5/T8 to get six wires and three windings in a traditional sense. Or, Asea took a 3ph motor and de-rated it with a start capacitor, to "simulate" a 1ph. Either way, that seems an odd RPM for a 60Hz motor...

@dogdog it does say PSC on the bottom of the pic (top right line of the plate).

Norcal · Mar 26, 2023

Any info on ABB's website? ABB is the successor to ASEA, ASEA Brown Boveri.

Walkers · Mar 26, 2023

Norcal said:
Any info on ABB's website? ABB is the successor to ASEA, ASEA Brown Boveri.

I found the website, it is not very customer oriented. I did send an RFI, we shall see if the respond.

dogdog · Mar 27, 2023

Cruzan80 said:
@dogdog it does say PSC on the bottom of the pic (top right line of the plate).

LOL watching too many videos on UVW 3phase to 1phase motor conversion... those EU guy's brain are wired differently. But at least plenty of videos on how to do it.

Walkers · Mar 27, 2023

Two of the windings ohm out at .6ish, and one at 1.1

wyliesdiesels · Mar 27, 2023

mike93lx said:
Lol. Like where it says 1~?

and the capacitor rating

wyliesdiesels · Mar 27, 2023

dogdog said:
European motor
208v-230v

But you might be right. PSC motor doesn’t use centrifugal switch.

theres also a rating for the capacitor

dogdog · Mar 27, 2023

PCustoms said:
How you figuring that?

There's 2 pretty obvious clues on the nameplate that you aren't correct....

mike93lx said:
Lol. Like where it says 1~?

wyliesdiesels said:
and the capacitor rating

wyliesdiesels said:
theres also a rating for the capacitor

ok how do you wiring these up ? should be simple now right now OP have ohm out the windings.

How to wire single phase 6 wire motor?

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