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SECTION 2
-
INTRODUCTION
Model
Rated
Welding
Current
Amperes
100%
Duty Cycle
Max.
Open-
Circuit
Voltage
Input
At
Rated
Load
Output
60
Hz.
Three-Phase
-
Amperes
At
230V
460V
575V
kva
kw
Dimensions
Weight
Net
Ship
1000
1000
@76
Volts
85
224
112
90
89
85
Height
-
41-1/8
in.
(1045 mm)
Width
-
27-1/4
in.
(692 mm)
Depth
-
46
in.
(1168 mm)
898
lbs.
(406
kg)
986 lbs.
(447
kg)
1500
1500
@76
Volts
85
330
165
132
131
123
Height
-
41-1/8 in. (1045 mm)
Width
-
27-1/4 in. (692 mm)
Depth
-46 in.
(1168 mm)
1068 lbs.
(484
kg)
1158 lbs.
(525
kg)
Figure
2-1.
Specifications
2-1. GENERAL
-
This
manual
has
been
prepared
especially
for
use
in
familiarizing personnel
with the
design,
installation,
operation,
maintenance,
and
troubleshooting
of
this
equipment.
All
information
presented
herein and
on
various
labels,
tags,
and
plates
on
the unit should be
given
careful consideration
to
assure
optimum performance
of
this
equipment.
2-2.
RECEIVING-HANDLING
-
Prior
to
installing
this
equipment,
clean all
packing
material from around
the unit and
carefully inspect
for any
damage
that
may
have occurred
during shipment. Any
claims for loss
or
damage
that
may
have occurred in transit
must
be filed
by
the
purchaser
with the carrier. A
copy
of the bill
of
lading
will be furnished
by
the manufacturer
on re
quest
if occasion
to
file claim arises.
When
requesting
information
concerning
this
equip
ment,
it is essential that Model
Description
and/or
Stock Number and Serial
(or
Style)
Numbers of the
equipment
be
supplied.
2-3.
DESCRIPTION
-
This
welding
power
source
in
corporates
a
three
phase
Delta
connected,
constant
potential
(CP)
type
main power transformer
to
provide
the
constant
voltage
output
required
to
operate
the
resistance
grid welding
stations connected
to
the unit.
2-4. SAFETY
-
Before
the
equipment
is
put
into
operation,
the
safety
section
at
the front of this manual
should be read
completely.
This
will
help
avoid
possible injury
due
to
misuse
or
im
proper
welding applications.
The
following
definitions
apply
to
CAUTION,
IMPOR
TANT,
and
NOTE
blocks
found
throughout
this
manual:
Is1~tUblIs1~ Under
this
heading,
installation,
operating,
and
maintenance
procedures
or
practices
will
be found that if
not
carefully
followed
may
create
a
hazard
to
personnel.
IMPORTANT:
_______
Under
this
heading,
installation,
operating,
and maintenance
procedures
or
practices
will
be found that if
not
carefully
followed
may
result in
damage
to
equipment.
I~Is1il~
Under this
heading, explanator,
statements
will be found that need
special
emphasis
to
obtain the
most
efficient
operation
of the
equipment.
SECTION 3
-
INSTALLATION
3-1.
LOCATION (Figure
3-1)
-
A proper installation
site should be selected for the
welding
power
source
if
the unit is
to
provide dependable
service,
and remain
relatively
maintenance free.
A proper installation site
permits
freedom of air
move
ment
into and
out
of the
welding
power source, and
also least
subjects
the unit
to
dust, dirt, moisture,
and
corrosive
vapors. A
minimum of 18 inches
(457 mm)
of
unrestricted
space
must
be maintained between the
welding
power
source
front and
rear
panels
and the
nearest
obstruction.
Also,
the underside of the
welding
power
source
must
be
kept completely
free of obstruc
tions.
The installation site should also
permit
easy
removal of
the
welding
power
source
outer
enclosure
for maintenance functions.
IMPORTANT: Do
not
place
any
filtering
device
over
the intake air passages of the
we/ding
power
source as
this would restrict the
volume
of intake air and
thereby
subject
the
welding
power
source
internal components
to
an
overheating
condition
and
subsequent
failure.
Warranty
is void if any
type
of
filtering
device is used.
Holes
are
provided
in the
welding
power
source
base for
mounting
purposes.
Figure
3-1
gives
overall
dimensions
and the base
mounting
hole
layout.
OM-267
Page
13
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