GE AKR-50 Installation Manual

GEI
-
86150
-
A
CODE
D
(
AKD
-
8
SWITCHGEAR
)
(
Fig
.
5
)
The
in
and
out
movement
of
the
breaker
between
CONNECTED
-
TEST
-
DISCONNECTED
positions
is
identical
to
"
A
”
type
AKD
-
6
models
with
the
exception
of
breaker
posi
-
tioning
indication
.
AKR
-
“
D
”
type
breaker
position
is
registered
directly
by
markings
on
the
left
and
right
side
of
the
escutch
-
eon
,
these
becoming
visible
as
it
emerges
through
the
door
cutout
.
This
type
drawout
breaker
is
supported
by
two
protruding
pins
on
each
side
of
its
frame
;
these
engage
slots
in
telescop
-
ing
slide
rails
(
tracks
)
mounted
to
each
sidewall
of
the
switch
-
gear
.
Unlike
AKD
-
6
Switchgear
the
door
on
AKD
-
8
switchgear
remains
stationary
and
closed
while
the
breaker
is
racked
out
from
the
connected
,
thru
test
to
disconnected
position
.
All
AKR
D
-
type
breakers
for
use
in
AKD
-
8
are
equipped
with
a
deep
escutcheon
instead
of
the
standard
escutcheon
emp
-
loyed
on
the
A
-
type
models
.
3
.
Slowly
lower
and
guide
the
breaker
so
that
the
breaker
mounting
pins
drop
into
the
slots
in
the
tracks
.
Remove
the
lifting
device
.
4
.
Push
the
breaker
into
the
compartment
until
it
reaches
the
track
stops
.
This
is
the
DISCONNECT
position
.
At
this
point
the
racking
arms
are
positioned
to
engage
the
fixed
racking
pins
in
the
compartment
,
ready
to
begin
the
racking
motion
.
5
.
Close
the
compartment
door
.
Insert
the
racking
handle
into
the
racking
screw
opening
in
the
breaker
escutcheon
.
By
clockwise
rotation
of
the
handle
,
move
the
breaker
through
the
TEST
position
into
the
CONNECTED
position
;
the
latter
is
indicated
when
the
jackscrew
comes
to
a
solid
stop
.
The
drawout
operation
features
four
discrete
positions
:
CONNECTED
—
This
is
the
breaker
’
s
“
In
-
Service
”
position
.
It
is
fully
inserted
in
its
compartment
;
the
primary
and
secon
-
dary
disconnect
contacts
are
fully
engaged
.
The
breaker
must
be
tripped
before
it
can
be
racked
into
or
out
of
this
position
.
TEST
—
In
this
position
the
primary
contacts
are
discon
-
nected
but
secondary
contacts
remain
engaged
.
This
allows
complete
breaker
operation
without
energizing
the
primary
circuit
.
DISCONNECTED
—
Both
primary
and
secondary
contacts
are
disengaged
.
WITHDRAWN
—
With
the
compartment
door
open
,
the
breaker
can
be
manually
pulled
out
to
the
WITHDRAWN
position
.
At
this
point
the
tracks
are
fully
extended
and
the
breaker
is
completely
out
of
its
compartment
,
ready
for
re
-
moval
.
Note
that
the
racking
mechanism
is
not
employed
for
movement
of
the
breaker
between
the
DISCONNECTED
and
WITHDRAWN
positions
.
1
.
With
the
door
closed
and
latch
,
trip
the
breaker
.
2
.
Insert
the
racking
handle
and
rotate
it
counterclockwise
until
the
breaker
travels
from
CONNECTED
through
TEST
to
the
DISCONNECTED
position
,
as
indicated
by
the
jackscrew
coming
to
a
solid
stop
.
This
operation
should
be
performed
with
the
door
closed
.
If
the
breaker
closing
spring
is
fully
charged
,
it
will
be
automatically
discharged
a
few
turns
before
the
end
of
the
racking
action
.
3
.
Open
the
compartment
door
.
Pull
the
breaker
out
to
the
track
travel
limit
—
this
is
the
WITHDRAWN
position
.
4
.
Before
proceeding
with
subsequent
operations
to
re
-
move
the
breaker
from
the
compartment
,
visually
check
the
breaker
’
s
spring
charge
and
close
indicators
to
verify
that
breaker
is
open
and
the
springs
are
discharged
.
5
.
Attach
the
lifting
device
and
hoist
the
breaker
until
its
mounting
pins
clear
the
track
slots
.
6
.
Swing
the
breaker
forward
until
the
primary
disconnects
clear
the
compartment
;
lower
the
breaker
onto
a
flat
surface
free
of
protrusions
that
could
damage
the
breaker
’
s
internal
parts
.
Breaker
Insertion
!
(
Code
D
)
1
.
Prior
to
lifting
a
breaker
to
its
intended
compartment
location
,
observe
the
following
precautions
:
a
.
Check
the
compartment
to
insure
that
it
is
free
of
foreign
objects
.
b
.
Verify
that
the
breaker
is
the
correct
type
for
that
compartment
.
c
.
Insure
that
the
breaker
is
OPEN
.
d
.
Apply
a
thin
,
fresh
coat
of
D
50
HD
38
lubricant
to
the
breaker
'
s
primary
disconnects
.
e
.
Insure
that
the
racking
cams
on
the
breaker
are
cor
-
rectly
positioned
for
initial
engagement
with
the
pins
in
the
compartment
.
To
do
this
,
insert
the
racking
handle
and
rotate
it
fully
counterclockwise
.
2
.
Using
a
suitable
lifting
mechanism
and
spreader
rig
,
raise
the
breaker
above
the
elevation
of
the
tracks
.
(
Use
the
forward
slots
for
non
-
fused
breakers
,
the
rear
slots
for
fused
models
.
)
10
Courtesy of NationalSwitchgear.com

GE AKR-50 Specifications

General

Brand	GE
Model	AKR-50
Category	Circuit breakers
Language	English