SUPPLEMENT to Form 15-071
SVI-450i cv/cc POWER SOURCE FOR 50 HZ SERVICE
ESAB Part No. 31960
L-TEC Part No. 35617
F-15-073-A
March, 1995
I. General
This supplement covers the SVI-450i Export Power Source
specifically designed for220/380/416 Volt — 50 Hertz service. It is identical to the standard SVI-450i, P/N 31950
unit covered in Form 15-071 except for the following
IMPORTANT
As shipped from the factory, all Export units are hooked-up to
operate from a 415 volt input. If your input requirements do
not match the factory-shipped provisions, the following data
should be heeded.
— You must change the input voltage links connections (for
the main and control transformer) to match your actual input voltage, as described in Section Il-C of this insert.
A. Replacement Parts:
Main Transformer Assy. (MTR) - P/N 31693 replaces P/N
31133
Control Transformer Assy. (CTR) - P/N 31694 replaces
P/N 31134
Voltage Changeover Terminal Board Assy (TB) - P/N 31697
replaces P/N 31142
II. Form 15-071 is applicable to this unit except as
follows:
A. See Revised Specification Table following.
B. See Revised Table for Recommended Input Conductors
and Line Fuses.
Note that the customer can either use the factory- supplied input power cable (No. 6 AWG, 4/c, type SO, 90° C
12-ft. Ig.), or provide his own leads per the Input Table.
Rated Input Input & Gnd. Time-Delay
Volts Amps CU/AWG Amps
220 61 6 90
380/415 42/39 8 60
l Sized per National Electnc Code for 90 C rated copper conductors @ 30 C ambient. Not
more than three conductors in raceway or cable. Local codes should be followed if they
specify sizes other than those listed above.
SPECIFICATIONS
Rated Output @60% Duty ............................... 450 amps @ 38 vdc
Open Circuit Voltage (Max. @ 220 v. Input) .......................... 80 vdc
Input Voltage ..................................... 220/380/415 vac, 3 ph, 50 Hz
Input Current @ Rated Load ........................... 61 amps @ 220 vac
......................................................................... 42 amps @ 380 vac
............................................................................. 39amps@415vac
Dimensions:
........... 14.25" (362 mm) w x 23.0" (584 mm) d x 15.5" (394 mm) h
Weight .......................................................................115 Ibs (52 kg)
Conductor Fuse Size
C. Primary Voltage Changeover Connections.
As mentioned in Section I, the primary windings of the main
and control transformer are factory-connected for 415- volt
operation. These connections are located on the terminal
board under the top cover, and are made using reconnectable
links. To accommodate the other input voltages available, the
links must be repositioned as marked on the terminal board
(see illustration following).
380
5
10
220
4
415
9
220
DOUBLE LINKS
3
220
2
380
415
8
1
220
6
7
INPUT VOLTAGE TERMINAL BOARD (TB)
D. Changes To Troubleshooting section Vl, as follows:
1. Reference the “Power Boards, PB1/PB2, Troubleshooting”
chart, and change the “voltage measurement” readings of
the “Voltage Checks” data as follows;
Voltage Checks (T.S. deenergized)
(+) Probe (-) Probe Measurement
TB-1(+) TB-8(-) (220/380/415v,50Hz)
TB-2(+) TB-9(-) 311/269/294 vdc
Gate-1 Source-1 -12 vdc
Gate-2 Source-2 -12 vdc
P1-1 P1-3 24 vac
P1-1 P1-2 12 vac
P1-2 P1-3 12 vac
P1-8 P1-10 24 vac
P1-8 P1-9 12 vac
P1-9 P1-10 12 vac
H.V.
2. Reference the “Input Bridge, IBR, Troubleshooting” chart,
and change the “voltage measurement” readings of the
“Voltage Checks” data as follows;
Voltage Checks
TB-l (+) TB-9(-) 358-280 vdc @ 220 vac (+15%/-10%)
H.V.
618-484 vdc @ 380 vac (+15%/-10%)
675-528 vdc @ 415 vac (+15%/-10%)
E. Revised Wiring Diagram Contained Herein.
F. Revised Schematic Diagram Contained Herein.
Be sure this information reaches the operator.
You can get extra copies through your supplier.
Schematic Diagram - SVI-450i/50 Hz (Dwg. 31961)
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