GE AKR-50 Installation Manual

GEI
-
86150
-
A
2
.
AKD
-
6
switchgear
breaker
compartments
are
factory
shipped
less
breakers
and
with
the
inner
housing
stowed
in
the
CONNECTED
position
by
ashipping
bolt
painted
yellow
.
As
the
first
step
in
preparing
for
breaker
insertion
,
remove
and
discard
this
bolt
and
its
shipping
tag
.
3
.
Pull
the
inner
housing
out
until
it
stops
.
It
will
then
be
in
the
DISCONNECTED
position
.
4
.
Rotate
the
two
track
lock
links
and
pull
the
right
track
all
the
way
out
.
5
.
Using
a
suitable
lifting
device
,
hoist
the
breaker
until
its
mounting
pins
are
approximately
one
inch
above
the
tracks
.
NOTE
:
To
avoid
damaging
the
arc
quenchers
,
a
spreader
bar
must
be
used
for
hoisting
these
breakers
.
Two
hoisting
slots
are
provided
in
each
side
frame
—
see
Fig
.
2
.
The
spreader
bar
'
s
hooks
should
be
placed
in
the
forward
slots
for
non
-
fused
breakers
and
in
the
rear
slots
for
fused
brjeakers
.
Breaker
Removal
(
Code
A
)
1
.
Trip
the
breaker
.
2
.
Insert
the
racking
handle
and
rotate
it
counterclockwise
until
it
stops
.
The
indicator
should
read
DISC
.
Toward
the
end
of
the
above
racking
movement
,
the
breaker
’
s
“
closing
spring
interlock
”
is
activated
;
this
automati
-
cally
discharges
the
closing
spring
(
if
in
a
charged
state
)
but
does
not
close
the
breaker
.
3
.
Remove
the
racking
handle
,
open
the
compartment
door
.
4
.
Rotate
the
two
track
lock
links
and
pull
the
breaker
all
the
way
out
.
5
.
Attach
the
lifting
device
and
raise
the
breaker
until
its
mounting
pins
clear
the
track
.
6
.
Push
the
tracks
into
the
compartment
,
then
lower
the
breaker
to
a
flat
surface
;
avoid
protrusions
that
could
damage
the
internal
parts
of
the
breaker
.
6
.
Pull
the
left
track
out
to
the
limit
of
its
travel
;
lower
the
breaker
onto
the
track
so
that
its
mounting
pins
drop
into
the
track
slots
.
CAUTION
:
Breakers
and
tracks
are
equipped
with
rejection
hardware
which
acts
to
prevent
the
tracks
from
accepting
a
breaker
whose
rating
does
not
match
that
of
the
compartment
.
This
rejection
system
is
separately
described
under
the
heading
INTER
-
CHANGEABILITY
starting
on
Page
14
.
7
.
Attach
the
racking
handle
to
the
racking
screw
thru
the
opening
at
the
lower
left
corner
of
the
breaker
escutcheon
.
Access
to
the
racking
screw
is
obtained
by
depressing
the
TRIP
button
and
slidingthe
racking
screw
cover
to
the
right
;
releasing
the
TRIP
button
locks
the
cover
open
.
8
.
Rotate
the
racking
handle
counterclockwise
(
if
possible
)
until
it
stops
,
then
remove
it
.
The
purpose
of
this
step
is
to
position
the
slotted
crank
arms
at
the
proper
angle
necessary
to
engage
the
fixed
racking
pins
in
the
compartment
.
9
.
Push
the
breaker
in
against
the
track
stops
.
Rotate
the
two
track
lock
links
to
lock
the
breaker
in
place
.
Close
the
door
.
10
.
Again
insert
the
racking
handle
(
as
in
Step
7
)
and
rotate
it
clockwise
until
it
stops
.
A
few
turns
before
the
stop
is
reached
,
turning
torque
will
noticeably
increase
as
the
breaker
’
s
discon
-
nect
fingers
engage
the
stationary
studs
.
The
breaker
is
now
in
the
CONNECTED
position
and
the
position
indicator
will
show
CONN
.
The
complete
racking
cycle
requires
approximately
24
turns
of
the
racking
handle
.
11
.
Remove
the
racking
handle
and
depress
the
TRIP
button
to
close
the
racking
screw
cover
.
NOTE
:
After
a
breaker
is
removed
from
its
com
-
partment
,
the
inner
house
cannot
be
manually
pushed
all
the
way
back
into
the
compartment
.
The
latches
that
rest
on
the
drawout
mechanism
pins
prevent
this
.
CODE
B
(
AKR
SUBSTRUCTURE
)
(
Fig
.
4
)
The
AKR
substructure
is
a
self
-
contained
,
open
-
type
frame
-
work
serving
as
the
stationary
receptacle
for
a
drawout
breaker
.
Featuring
closed
-
door
type
drawout
operation
,
it
is
designed
for
convenient
mounting
in
individual
breaker
compartments
of
drawout
switchgear
equipments
.
It
provides
means
for
making
the
primary
and
secondary
connections
to
the
removable
breaker
element
and
is
factory
aligned
.
All
AKR
B
-
type
breakers
for
use
in
substructures
are
equipped
with
a
“
deep
”
escutcheon
instead
of
the
standard
escutcheon
employed
on
the
A
-
type
models
.
This
configuration
allows
the
breaker
to
be
racked
between
the
CONNECTED
and
DISCONNECTED
positions
with
the
door
closed
.
The
door
is
hung
on
the
compartment
(
not
on
the
slide
rails
)
and
does
not
move
with
the
breaker
as
it
does
in
the
A
-
type
AKD
-
6
models
.
The
racking
mechanism
is
breaker
-
mounted
and
is
identical
to
that
of
the
Code
A
breaker
;
the
same
support
method
(
pins
engaging
slots
in
slide
rails
)
is
also
used
.
In
operation
,
the
substructure
traverses
the
same
four
drawout
positions
as
the
A
-
types
:
CONNECTED
—
TEST
—
DISCONNECTED
-
WITHDRAWN
.
Breaker
position
is
registered
directly
by
markings
on
the
left
side
of
the
escutcheon
,
these
becoming
visible
as
it
emerges
throught
the
door
cutout
.
6
Courtesy of NationalSwitchgear.com

GE AKR-50 Specifications

General

Brand	GE
Model	AKR-50
Category	Circuit breakers
Language	English