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Holy. Crap.

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Re: Holy. Crap.

Postby ryanjames170 » Wed Feb 01, 2017 11:46 am

Rupes wrote:Channel sponsor. Nice

Well done to him to get them on board.

Its a $1200 inverter stick welder, yes tig too but lift tig and most of those little welders can get set up that way. A long way off the usual stuff he has on there.

I think he just needs to bump up the research/info bit on his videos and it would go a long way. Like why is it so expensive? VRD? target market i.e. mining, plant equipment maintenance on site etc.


i would say going off the specs.. its got top of the line stuff inside.. also i think the company is one of the top of the line ones in Europe..
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Re: Holy. Crap.

Postby ldbtx » Wed Feb 01, 2017 12:47 pm

Although Lanse didn't explain it as such, to me the amazing part of the demo was that the welder was still functioning properly given the inevitable voltage drop in 250' of cable between the generator and the welder. That speaks very well of the tolerance of the unit for operating on low voltage.
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Re: Holy. Crap.

Postby Oscar » Wed Feb 01, 2017 6:37 pm

ldbtx wrote:Although Lanse didn't explain it as such, to me the amazing part of the demo was that the welder was still functioning properly given the inevitable voltage drop in 250' of cable between the generator and the welder. That speaks very well of the tolerance of the unit for operating on low voltage.


Exactly. He kinda inferred it by his amazement of how it was still welding at 120A over such a long extension. I wouldn't doubt if the unit was seeing 100V or so.
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Re: Holy. Crap.

Postby PeteM » Wed Feb 01, 2017 7:40 pm

Here's a voltage drop calculator. I used [120v., single phase AC @ 60hz].,[ 6awg., @ 77F, pvc conduit, single set of conductors, @ 150 ft.] with a load of 30 amps. The result was .4% voltage drop, which equals 119.52 volts to the machine.

http://www.nooutage.com/vdrop.htm
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Re: Holy. Crap.

Postby PeteM » Wed Feb 01, 2017 8:07 pm

On the other hand,

using [ DC at 20v.] [4/0 awg. @ 77degrees, pvc conduit, single set of conductors, @150 ft.] [load= 120 amps]

gives 9.2% drop or 18.16 volts.
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Re: Holy. Crap.

Postby Oscar » Wed Feb 01, 2017 9:32 pm

Those numbers are mathematically correct, but how do they apply to the scenario depicted in the video?
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Re: Holy. Crap.

Postby PeteM » Wed Feb 01, 2017 9:46 pm

Because the drop on ac voltage is negligible.

The machine could be next to his truck, plugged into a wall or 150 feet away. With AC circuitry, it makes almost no difference.

Hence my comment that it is a good demonstration of extension chords.
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Re: Holy. Crap.

Postby Oscar » Wed Feb 01, 2017 10:08 pm

PeteM wrote:Because the drop on ac voltage is negligible.

The machine could be next to his truck, plugged into a wall or 150 feet away. With AC circuitry, it makes almost no difference.

Hence my comment that it is a good demonstration of extension chords.


Not quite. He was not using 6 gauge AC extension cords. I would bet that most were 14 or 12 gauge. It's only as good as the weakest link. Also, he was at, what, 200+ ft away? I'm telling you, ~100V. :) Try the same calculation with 12awg wires, 250 ft, and see what you get. AC is great, but it is in no way shape or form insusceptible to voltage loss over long lengths. If it was insusceptible, AC voltage drop calculators wouldn't exist. ;)
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Re: Holy. Crap.

Postby PeteM » Wed Feb 01, 2017 10:29 pm

Ah, ya got me. :lol:

Either you control it, or you don't. If you under-size the leads to begin with then that is applied handicap, not an inherent one.


Still great for welders all the way around though. No longer needing to run a bunch of lead from the truck to the work is a big advantage, and cost savings if they haven't already done so.
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Re: Holy. Crap.

Postby sedanman » Wed Feb 01, 2017 10:41 pm

I want one, but I also want the new one coming from HTP. And my Esab 161 is all that l really "need". How many machines is "too many"?
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