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Copyright © Nelson <strong>Stud</strong> <strong>Welding</strong>, Inc.<br />
Power Factor & efficiency – Drawn<br />
Arc<br />
In idle: transrec<br />
consumes<br />
70X more kVA<br />
(1.145KW savings)<br />
In welding:<br />
N1500i<br />
consumes half<br />
the kVA<br />
(2.25KW savings)<br />
N800i<br />
Inverter<br />
N1500i<br />
Inverter<br />
N6000<br />
Trans-<br />
Rec<br />
S5000<br />
Trans-<br />
Rec<br />
KW idle 0.05 0.06 1.2 1.2<br />
KVA idle 0.06 0.08 5.9 2.2<br />
PF idle 0.4 0.3 0.2 0.5<br />
Load<br />
800A<br />
27V<br />
800A<br />
42V<br />
800A<br />
27V<br />
800A<br />
27V<br />
KW load 29.2 28.4 31 35.6<br />
kVA load 40 39 81 59.8<br />
PF load 0.72 0.71 0.35 0.57<br />
Efficiency 0.74 0.76 0.70 0.61<br />
May 8, 2012<br />
<strong>NSRP</strong> <strong>Welding</strong> Panel Meeting Fort Collins 2012<br />
7
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