Lincoln Electric 11124, 11226 manual Phase, Recommendations

B-11 OPERATION B-11

MULTIPLE ARC AC ADJUSTMENTS FOR

SYSTEMS EQUIPPED WITH K2282-1

SYSTEM INTERFACE

Phase

The phase relationship between the arcs helps to minimize the magnetic interaction between adjacent arcs. It is essentially a time offset between the wave- forms of different arcs, and is set in terms of an angle from 0 to 360°, representing no offset to a full period offset. The offset of each arc is set independently with respect to the lead arc of the system (ARC 1).

Recommendations:

•For balanced waveforms a phase relationship of 90° should be maintained between adjacent arcs.

	ARC 1	ARC2	ARC3	ARC 4
2 Arc System	0°	90°	X	X
3 Arc System	0°	90°	180°	X
4 Arc System	0°	90°	180°	270°

•For unbalanced waveforms:

–Avoid switching at same time

–Break up long periods of unchanged polarity relative to adjacent arcs

Phase Relationship
Use Phase Relation ship to minimize arc blow
	in multip le arc systems.
	(Balanced two arc system shown)
0°	90°	180°
(PULL)	(PUSH/PULL)	(PUSH)
500
ARC 1
ARC 2
0
-500
BAD	GOOD	BAD

Best results obtained by alternating and equalizing the duration of

magnetic forces between adjacent arcs.

POWER WAVE® AC/DC 1000