Generator question?

I just talked to a seller of a 3 phase generator that is currently running
110 volt (I talked to him on the phone) It is a Hobart generator with a 4
cylinder hercules motor, he said it has poles that can be changed but he
knows nothing and isn't sure if it can be used to put out 220 volt. I was
thinking it would be nice if I could use it for 220 three phase for some
welding stuff. Anyone know anything about these sorry no model #
Reply to
wayne mak
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If it's a 12 lead reconnectible type there are a number of possible configurations. Check on the Onan or Kohler sites and you should be able to find and explanation of the connection options.
Basically for each of the three poles you have two sets of windings brought out separately. Connect parallel for low voltage, high current or series for high voltage, low current, can connect on delta or Y configurations and an odd "zig-zag" configuration to get single phase.
Pete C.
Reply to
Pete C.
If that's the typical Hercules flat-4 gas (spark) engine, as commonly seen in the mil-surplus gensets; it is a GAS HOG. And noisy too.
If you're only running it an hour here, an hour there; then fuel consumption obviously isn't an issue. But for heavy or daily usage, you'll find the $$$ mounting up fast.
And by the way, Hobart was one of the mfg's who supplied those commonly-seen mil gensets...
Hercules made a series of inline diesels too; which were fine little engines. If it's one of those, it's a gem.
You already got a reply regarding the wiring. If it's a 12-lead alternator; it's 99.9% certain to be a 110/220 capable unit.
Reply to
Can I take a guess, is it a MEP-018A?
If so, I had one similar (MEP-017A) briefly before I resold it. It is a gas hog, like someone else said. Also very heavy. The plus is that it is utterly reliable and will last forever and starts in bad weather. For 3 phase, it is much better to make a phase converter than it is to run a genset.
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