Lincoln Electric K2803, Руководство оператора

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Figure: Frequency
Phase Adjustment for Multiple Arc
Systems
Phase

The phase relationship between the arcs helps to
minimize the magnetic interaction between adjacent
arcs. It is essentially a time offset between the
waveforms 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.

For unbalanced waveforms:
–
Avoid switching at same time.
–
Break up long periods of unchanged polarity
relative to adjacent arcs.
TABLE B.1 - PHASE RELATIONSHIP
ARC 1 ARC 2 ARC 3 ARC 4 ARC 5 ARC 6
Lead Trail Trail Trail Trail Trail
2 Arc
System
0° 90° X X X X
3 Arc
System
0° 90° 180° X X X
4 Arc
System
0° 90° 180° 270° X X
5 Arc
System
0° 90° 180° 270° 0° X
6 Arc
System
0° 90° 180° 270° 0° 90°
Phase Relationship
Use Phase relation ship to minimize arc blow in multiple
arc systems. (Balanced two arc system shown)
Best results obtained by alternating and equalizing the
duration of magnetic forces between adjacebt arcs.