Lincoln Electric IM10119 IDEALARC AC-1200 - Manual (Page 20)

F-3 DIAGRAMS F-3
IDEALARC ® AC-1200
M10033-1
A.01
100
90
80
L2
L1
L2
L1
P1
C B A
TO GROUND PER NATIONAL
ELECTRIC CODE.
WORK
ELECTRODE
WORK
ELECTRODE
N.B.
MAIN TRANSFORMER
LEAD ARC
4/O CABLES
4/O CABLE
N.C.
TEASER TRANSFORMER
TRAIL ARC
4/O CABLES
4/O CABLE
N.C.
100
90
80
L2
L1
L2
L1
P1
C B A
TO GROUND PER NATIONAL
ELECTRIC CODE.
WORK
ELECTRODE
WORK
ELECTRODE
N.B.
N.B.
N.B.
3 PHASE SUPPLY LINE (N.A.)
NOTES:
N.B. ELECTRODE CABLES OF PARALLELED MACHINES SHOULD BE CONNECTED TO THE SAME RANGE TAP.
N.C. NUMBER OF 4/O CABLES CONNECTED: 1 ON MIN. TAP; 2 PARALLEL ON MED. TAP; 3 PARALLEL ON MAX. TAP.
TWO PARALLEL MACHINES SCOTT CONNECTED TO TWO OTHER PARALLEL MACHINES
FOR DESIRED PHASE ANGLE, INTERCONNECT MACHINES (AS SHOWN BELOW).
BOTH PHASE ANGLES MUST BE THE SAME.
N.A. TO OBTAIN NORMAL PHASE SEQUENCE AT THE WELDING ARCS, THE INPUT LINE PHASE SEQUENCE SHOULD BE A-C-B.
AC-1200 SCOTT CONNECTION DIAGRAM