OCV and CV Machines

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I think I understand the relationship with OCV and CC stick machines as it relates to arc length.  I am trying to understand how this related to CV wire welders.  I understand, that on the old transformer based CC units, amperage will change as arc length changes.  Since CC units typically have an OCV of around 80V and CV wire welders have an OCV of aroun 40V, would this mean that the effect of amperage change with arc length would be less with a CV unit?
Reply:http://www.hobartwelders.com/weldtal...ire-Feed-SpeedPost # 3 should have the answerEd Conleyhttp://www.screamingbroccoli.com/MM252MM211 (Sold)Passport Plus & Spool gunLincoln SP135 Plus- (Gone to a good home)Klutch 120v Plasma cutterSO 2020 benderBeer in the fridge
Reply:Thanks Brocolli.  That helps.
Reply:Originally Posted by morgaj1I think I understand the relationship with OCV and CC stick machines as it relates to arc length.
Reply:This article on Miller's site explains it very well:http://www.millerwelds.com/education...rticle108.htmlAlso covered in the Procedure Handbook of Arc Welding, AKA the "Bible".JohnA few weldersA lot of hammersA whole lot of C-clamps
Reply:Originally Posted by morgaj1II understand, that on the old transformer based CC units, amperage will change as arc length changes.