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  • #1

    Power Factor??

    When looking at the amp specs for any given machine, it list one input amp rating then gives a lower rating figuring "Power Factor"
    What is a Power Factor rating.

    Also with my Snychro 250, in order to "stick" weld is it matter of simply connecting the work and electrode to respective lugs and weld away?
    What about turning on or off any of the controls. The manuel does not elude to this.




    Thanks
    Tags: None
  • #2
    JWELD,

    GOOD QUESTION!

    PFC is part of the machine circuit that allows it to use the incoming power more efficiently. Therefore, the PFC equipped machines draw less amperage for a given amp rating and duty cycle than their non PFC counterparts. This circuitry is typically used for single phase incoming power on constant current welding machines like your Syncro 250.

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    • #3
      JWELD
      there is some info that pretty much covers Power Factor Correction on page 2 of the Welder Wiring Safety thread..
      hope this helps
      Heiti
      .

      *******************************************
      The more you know, The better you know, How little you know

      “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

      Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

      My Blue Stuff:
      Dynasty 350DX Tigrunner
      Dynasty 200DX
      Millermatic 350P w/25ft Alumapro & 30A
      Millermatic 200

      TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

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      • #4
        So do I figure my wirng and breaker on the corrected lower amps??

        Thanks for your help.

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        • #5
          JWELD
          to the best of my knowledge the power factor correction was an extra cost option... if you have your original reciept it may tell you if it was equipped with the correction capacitors from the factory..... (most were not)... then go from there....
          hope this helps
          Heiti
          .

          *******************************************
          The more you know, The better you know, How little you know

          “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

          Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

          My Blue Stuff:
          Dynasty 350DX Tigrunner
          Dynasty 200DX
          Millermatic 350P w/25ft Alumapro & 30A
          Millermatic 200

          TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

          Comment

          • #6
            Most people do not have power factor installed. If you were a large company with many arcs or you specifically ordered power factor because of input restrictions, I would say you do not have it.

            Wire per non P.F. and you will be fine either way.

            As for stick, place your stinger on the electrode stude and turn the HF switch off, turn remote switch to standard/panel, switch polarity switch to EP (electrode positive), turn the contactor switch to on, set your amps on the front panel and burn away.

            Hope this helps

            Andy

            Comment

            • #7
              I have been wondering for some time if I could put a bunch of PF correcting capacitors inside my DA 250 and hook them up. What I would like to do is reduce the current consumption for the machine. Compared to my xmt, this thing sure uses the power. I have a bunch of them, like about 20, they are all rated 480 volt, that I salvaged. I suppose it is possible to do, but will it accomplish this purpose?

              Regards RWG

              Comment

              • #8
                RWG,

                You can use the caps for added power factor. The factory specs are 150uf and 250 VAC caps. As long as your caps are rated at 150uf... they will work. The higher voltage rating you have is just a plus. The capacitance is critical in matching the inductance difference of the transformer. Too much will cause a phase shift in the other direction and really effect transformer operation.
                203517 is the cap part # qty 4
                129201 is the mounting bracket. qty 2
                Hope this helps.
                Andy

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