Is This A Static Converter?

[Uglydog]

After work on Friday I picked up a 1944 JD Wallace 10" Universal Saw with the original 3ph 3hp 220v motor, fence and miter gage. Table is rusty but the motor purrs.

The man I got her from never had her plugged in because shes 3ph, he just got tired of pushing it around his pole barn. Between the dark, the rusty top, and the unknown electrical status, it was an unknown if she would be operable.

Got her home and off the truck. Was cleaning out the saw dust bin and found the "can" as seen in the pic attached.

I'm wondering if this is a static converter. I've never used one, nor had a look at one. Other than markings on the cover which say 3hp I don't know what else she could be.

Any suggestions on wiring? This would save me running 3ph to the wood shop.

Thanks,
Daryl
MN

 

[4GSR]

Yep, that's a static phase converter! Might be a little light for a table saw. But before you take my word, give her a try.

 

[Ulma Doctor]

yes it's a static converter.

 

[Ulma Doctor]

where do the spliced white wires go?

 

[4GSR]

where do the spliced white wires go?

Looks like Line 1 coming in and going out, since it's only on one side of the capacitor.

 

[Uglydog]

What's really messing me up is the male plug wired into the mix.

Daryl
MN


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[John Hasler]

I see only a starting capacitor. It will probably get the motor going but with less than half of rated power.

 

[Ulma Doctor]

it's got a resistor and a taped up doohickey that signals the potential relay, aparently

 

[Uglydog]

The green thing is a light.
I got that figured out.

If I add another capacitor is it likely to be safer and more effective?

Daryl
MN


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[4GSR]

What's missing is a oil filled capacitor. Like John said, it will run, but at reduced power.
The black wire coming out of the SO cord, not going to anything, that's scary!!!
I think I would gut it and start over.