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Power cable length?

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发表于 2021-8-31 22:18:20 | 显示全部楼层 |阅读模式
I bought a   IGBT ZX7-200 DC INVERTER MMA ARC Machine. Its a 220v.What is the longest reasonable powerline from the breaker to the welder.Is 75' too long?ZZ
Reply:Depends on the max input current requirement and circuit/extension cord conductor size.  750' is possible if the conductor size is big enough.More information is needed.  I'm personally not familiar with your unit so I have no idea of its input amperage requirement at rated capacity and intended conductor size which would be needed in order to do any calculations.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:Amazon says"" single phase 220±15% 50/60 Rate input power capacity(KVA)8 ""worst case current is I  =   8000 / ( 220 * .85 )  =  43 AmpIf your supply voltage is 220 you can afford to drop to ( 220 * .85) = 187 V.Or a drop of 16 Volts in each lead.At 43 Amp this would be  16/43  =  .37 ohms in each lead.10 Ga copper wire has a resistance of .99 ohms / 1000 ft(.37/.99)* 1000 =  370 feet.However I would not push it this far.  For one thing this is not constant voltage but will vary with welders load which couldbe difficult for the inverter to handle and possibly causing it to release the smoke contained within.Having a low but still 'stiff' voltage is less dangerous than having a poorly regulated voltage.I vote for 100 ft of # 10 wire as the max I would try to use.Go to #8 and you gain a little more.millermatic 130XPharbour freight 180 amp mig with added caps.hobart stickmate ac/dcpowerarc 200
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