GE AK-1-15 Maintenance Instructions

Low
Voltage
Power
Circuit
Breakers
GEK
-
7303
ELECTRICAL
TRIPPING
The
breaker
may
be
tripped
electrically
by
any
of
the
electrical
tripping
devices
described
in
these
instructions
,
tripped
by
the automatic
overcurrent
or
reverse
current
tripping
devices
,
if
so
equipped
,
these
devices
trip
the
breaker
in
a
similar
manner
,
i
.
e
.
the
device
trip
arm
moves
against
the
trip
paddles
fastened
on
the
trip
shaft
,
thus
rotating
the
trip
shaft and
displacing
the
trip
latch
.
The
most
commonly
used
tripping
device
is
the
shunt
trip
device connected
in
the control circuit
as
shown
in
Fig
.
1
.
When
a
tripping signal
is
given
,
the shunt
trip
coil is
energized through
a
norftially
-
open
auxiliary
switch
"
a
”
contact
,
thus
tripping
the
breaker
.
The
breaker
may
also
be
All
MAINTENANCE
BEFORE INSPECTION OR
ANY
MAINTENANCE
WORK IS
DONE
BE
SURE
THAT
THE
BREAKER
IS
IN
THE
OPEN POSITION
.
ALL
ELECTRICAL
POWER
,
BOTH
PRIMARY
AND
CONTROL
SOURCES
,
SHOULD
ALSO
BE
DISCONNECTED
.
Fig
.
3
(
8039670
)
View
showing
operation
of
AK
-
2
-
50
breaker
with
manual
maintenance
handle
and
installation
of
safety
pin
Warning
:
ergy
closing
mechanisms
,
care
must
be
taken
when the
circuit
breaker
is
being
installed
and when
any
inspection
or
maintenance
work
is
being
done
so
that
the breaker
is
in
the
open
position
and the
closing
springs
are
being
restrained
by
the
safety
pin
.
The
proce
-
dure
for
inserting
the
safety
pin
is
given
below
.
INSERTING
SAFETY
PIN
AK
-
50
,
-
75
and
-
100
(
Fig
.
3
)
The
closing
spring
should
be
charged
with
the
maintenance
handle
(
1
)
so
that
the
safety
pin
(
3
)
can
be
placed
in
the hole
of
the
push
rod
(
2
)
.
Continue
to
operate
the maintenance handle
,
clos
-
ing
the breaker
.
This is done
so
that
the
safety
pin
takes
the
spring
force
.
To
install the
safety
pin
of
the
manual
stored
-
energy
mechanism
refer
to
the section entitled
STORED
-
ENERGY
MANUAL
MECHANISM
on
page
17
of
these
instructions
.
With
the
safety
pin
restraining
the
closing
spring
force
,
the
contacts
will close
slowly
when
the
breaker
is
manually
operated
allowing
the
operation
of
the mechanism and the
contact
align
-
ment to
be
visually
observed
.
On
breakers
employing
stored
-
en
-
1
.
Manual maintenance Handle
2
.
Push Rod
3
.
Safety
Pin
INSPECTION
Periodic
inspection
of
the circuit breaker is
recommended
at
least
once
a
year
.
More
fre
-
quent
inspections
are
recommended
if
severe
load conditions
,
dust
,
moisture
or
other
unfavor
able conditions
exist
,
of
the breaker
,
including
contacts
and
arc
quenchers
,
should
always
be made
after
the breaker
has
in
-
terrupted
a
short
-
circuit
.
At
regular
inspection
periods
the
breaker
should
be
operated
manually
;
(
stored
energy
mechanisms
with the
safety
pin
restraining
the
closing
spring
force
)
to
observe the
contact
alignment
and
to
make
sure
all
mechanism
parts
move
freely
without
binding
or
excessive
friction
.
If
the
breaker remains
open
or
closed
for
a
period
of
six
months
or
more
,
it
is recommended
that
arrangements
be
made
to
open
and close
it
several
times
in
succession
,
preferably
under
load
.
A
complete
inspection
Following
the
inspection
period
,
the
closing
springs
must
be
recharged
,
the
safety
pin
removed
from
the
push
rod
,
and
the
pin
placed
in
the retain
-
ing
spring
clip
adjacent
to
Hie
push
rod
.
If
overheating
,
not
caused
by
overcurrent
,
is
observed
,
a
complete
inspection
of
the breaker
should be
made
including
connections
and
contacts
.
5
Courtesy of NationalSwitchgear.com

GE AK-1-15 Specifications

General

Brand	GE
Model	AK-1-15
Category	Circuit breakers
Language	English