GE AK-1-15 Series User manual

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INSTRUCTION
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AIR
CIRCUIT
BREAKERS
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Typos
AK
-
l
-
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lS
and
AK
-
1
-
25
Electrically
Operated
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SWITCHGEAR
DEPARTMENT
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GENERAL
ELECTRIC
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PHILADELPHIA
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Courtesy of NationalSwitchgear.com

PAGE
.
03
'
Lt
c
/
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o
gui
CONTENTS
PAGE
INTRODUCTION
RECEIVING
,
HANDLING
AND
STORAGE
INSTALLATION
LOCATION
’
MOUNTING
'
'
CONNECTIONS
OPERATION
MANUAL
ELECTRICAL
. .
.
.
.
.
..
.
8
3
4
i
4
4
6
6
C
MAINTENANCE
.
.
INSPECTION
Tools
,
LubrioattOn
.
.
Trouble
Shooting
.
,
BASIC
BREAKER
COMPONENTS
ARC
QUENCHER
.
POLE
UNIT
ASSEMBLY
OPERATING
MECHANISM
.
.
.
AUXILIARY
SWITCH
ELECTRICAL
CLOSING
DKVICES
AND
CONTROLS
6
*
4
0
t
7
7
«
r
L
7
.
J
i
9
S
’
9
9
12
17
17
i
»
PROTECTIVE
DEVICES
TIME
DELAY
UNDERVOLTAGE
TRIPPING
DEVICE
,
.
,
INSTANTANEOUS
UNDERVOLTAGE
TRIPPING
DEVICE
SERIES
OVERCURRENT
TRIPPING
DEVICE
REVERSE
CURRENT
TRIPPING
DEVICE
19
20
20
n
u
SF
MISCELLANEOUS
SHUNT
TRIPPING
DEVfcfe
,
BELL
ALARM
.
AND
LOCKOUT
DEVICES
u
.
.
.
.
.
.
.
.
.
GENERAL
PURPOSE
INDOOR
ENCLOSING
CASE
.
.
WEATHER
RESISTING
ENCLOSING
CASE
!
DRAWOUT
BREAKER
TYTK
AK
-
:
Uir
>
Tl
«
3
ANb
AK
*
l
-
2
m
4
BREAKER
RENEWAL
PARTS
*
u
«
0
ra
24
20
&
W
20
27
t
«
'
27
29
8
*
k
29
*
>
i
1
i
s
'
2
i
Courtesy of NationalSwitchgear.com

PAGE
04
“
tu
-
ru
W
W
I
W
V
W
J
.
f
I
/
/
WWW
"
I
F
'
AIR
CIRCUIT
BREAKERS
ELECTRICALLY
OPERATED
Ij
AK
-
lilS
-
3
THROUGH
AK
-
1
-
15
-
9
INTRODUCTION
rup
^
r
difference
in
the
upper
Mtud
and
later
-
AU
Of
theet
?
models
are
essentially
the
game
breaker
.
As
various
danign
Improvements
and
new
features
were
added
,
the
suffix
digit
of
the
type
number
was
progressively
Increased
,
Mainly
,
Changes
made
ware
of
A
very
minor
nature
.
These
are
tabulated
below
!
AK
-
1
-
15
/
25
-
3
Basic
model
AK
-
1
-
15
/
25
-
4
Improved
"
Y
"
relay
In
sole
-
noid
control
system
.
res
RATINGS
"
HIM
Continuous
Current
Rating
Interrupt
-
ing
Voltage
Breaker
Type
Rating
RMS
Amperes
'
^
-
TTYH
RMJ
3
Ampereis
AC
DC
AK
"
Jw
16
AK
-
l
-
lB
AK
-
I
-
lh
10
to
229
30
,
000
.
25
,
000
15
,
000
240
and
below
241
-
400
481
-
C
00
A
&
>
l
-
15
/
25
~
c
stationary
primary
disconnect
<
and
cable
clamp
raUmignod
,
(
Only
endowed
breakers
at
-
,
footed
*
)
.
AK
>
!
Ul
$
/
85
-
i
7
New
type
of
front
escutcheon
and
dosing
handle
,
Trip
but
-
ton
relocated
on
©
scutcheon
and
reset
lever
of
bell
alarm
and
lockout
breaker
#
changed
,
1302
overload
trip
device
used
Instead
of
the
KC
-
1
device
ex
-
cept
on
units
requiring
the
short
time
delay
feature
.
i
,
AK
-
l
-
15
/
2
Ii
-
B
New
drawout
frame
Introduced
.
15
to
2213
15
to
2215
200
AK
-
1
-
28
35
to
«
00
50
,
000
35
,
000
25
,
000
240
and
below
241
-
400
451
-
000
K
>
1
-
26
»
.
-
1
-
28
30
to
000
35
to
800
250
i
!
Those
circuit
breakers
are
generally
used
for
protection
and
control
of
apparatus
and
branch
circuits
,
Including
equipment
in
,
buildings
,
indus
-
tries
,
power
stations
and
for
inorbie
applications
within
the
ratings
designated
.
The
AK
-
1
-
15
and
AK
-
1
-
25
differ
in
that
the
AK
-
1
-
26
has
one
extra
contact
per
pole
with
cor
-
r
RECEIVING
,
.
HANDLING
Am
STORAGE
Immediately
upon
receipt
of
the
circuit
breaker
,
any
dirt
or
particles
of
packing
material
that
may
an
examination
should
be
made
for
any
damage
have
accumulated
on
the
breaker
parte
.
,
or
loss
sustained
In
transit
,
,
Jf
iniury
or
rough
}
handling
is
evident
,
a
damage
ertaim
should
bo
filed
at
once
with
tm
transportation
company
and
the
nearest
General
Kiefctrie
Solos
Office
should
be
promptly
notified
.
The
circuit
breaker
should
be
unpacked
as
possible
after
being
received
,
Caro
should
in
unpacking
to
avoid
damaging
any
of
tho
Be
sure
that
ho
loose
parte
are
missing
or
left
in
the
patting
malarial
.
Blow
out
If
the
circuit
breaker
is
not
installed
at
once
,
it
should
be
stared
in
a
clean
dry
place
and
pre
-
ferably
placed
in
;
a
vertical
position
.
It
should
be
pnorted
to
prevent
bending
of
studs
or
damage
the
breaker
parts
.
It
is
advisable
not
to
cover
the
breaker
with
any
packing
or
oilier
material
that
absorbs
moisture
which
may
cause
corrosion
of
breaker
parts
.
i
A
covering
of
paper
will
prevent
dust
*
from
settling
on
the
breaker
parts
.
ffU
to
soon
as
be
used
breaker
ports
.
7
/
twe
Wrucffcwu
do
sot
juwporf
to
cover
off
detoff
?
or
vorfof
/
orw
h
cqvipnmt
nor
tv
provkfo
for
every
fxwfbfo
contingency
to
be
me
*
m
connection
with
fnsfaffafiom
,
opmrtion
or
maintenance
*
$
!
joo
#
d
further
/
nfonmrfksi
be
dey
/
red
iw
diouk
/
parikutar
prob
/
emi
ariie
which
are
not
covered
nuffidantfy
for
the
pUmttfw
'
f
parptweit
,
the
matter
fthooJd
be
referred
to
ttw
»
Gemrttff
Vi
+
drk
Company
,
1
3
Courtesy of NationalSwitchgear.com

PAGE
05
4
OHO
UW
I
u
?
{
t
,
w
*
t
GKH
-
1807
Air
Circuit
Breaker
Typo
AK
-
1
-
16
and
AIM
-
2
6
INSTALLATION
©
.
Before
being
rtlpfMXl
,
*
U
broker
adjustments
imd
setting
*
have
been
carefully
made
and
checked
bv
experienced
factory
personnel
.
At
the
.
time
W
motkliaiiou
^
it
should
only
be
necoBeary
to
observe
the
operation
of
the
breaker
to
eetafolliwh
that
no
unobservable
damage
has
occurred duxlnr
ohlpmenL
*
LOCATION
The
air
circuit
breaker
should
be Installed
In
a
clean
dry
place
where
it
.
in
readily
accessible
tor
operation
,
inspection
and
proper
maintenance
.
Special
enclosures
are
available
for
the
inataUa
-
Uon
of
circuit
breakers
which
may
be
subjected
to
dust
and
moisture
or
other
unfavorable
locations
!
.
MOUNTING
DEAD
FRONT
BREAKERS
2
.
Remove
two
bolts
haloing
breaker
in
place
.
3
.
Remove
breaker
,
4
.
Mount
case
.
B
,
Make
power
,
control
and
ground
noctWms
,
d
,
Install
breaker
in
case
and
replace
two
mounting
bolts
and
enclosure
cover
,
(
b
)
Weather
Resisting
1
.
Opun
enclosing
case
door
,
2
.
Withdraw
breaker
(
sec
"
Weather
Re
-
sisting
Endowing
Case
"
)
,
3
»
Mount
case
.
4
.
Make
power
,
control
and
ground
eon
*
neotiona
,
6
,
Insert
breaker
(
see
"
Weather
Resist
-
ing
Enclosing
Case
"
)
,
con
-
BONNKCTION
*
Dead
front
circuit
,
breakers
are
designed
for
mounting
In
a
Switchboard
or
an
enclosing
case
.
The
connections
to
the
circuit
breaker
studs
mounting
of
«
foad
front
brettkers
consists
in
should
be
firmly
clamped
or
bolted
In
place
to
placing
the
breakers
within
tee
enclosed
structure
prevent
excessive
heating
.
The
connecting
cables
win
connecting
tee
power
buses
or
cables and
rank
-
or
bus
bara
should
have
a
current
-
carrying
capac
-
ing
the
necessary
control
conneettone
.
The
standard
lty
sufficient
to
limit
their
temperature
rise
to
mounting
depth
from
tee
back
nurfaec
of
tee
breaker
that
specified
for
the
breakers
.
If
these
connecting
base
to
the
back
aid
?
of
the
front
panel
le
8
-
3
/
4
"
.
cables
or
bus
bars
are
not
of
sufficient
size
,
heat
will
bo
conducted
from
them
to
the
breaker
so
that
The
front
cover
of
dead
front
breakers
consists
tec
breaker
cannot
carry
normal
rated
current
.
Aft
'
her
of
a
hinged
doc
»
r
with
cut
-
out
or
a
plate
without
exceeding
tee
specified
temperature
rise
.
Wr
Xtcd
to
tlm
panel
.
Connecting
cables
or
bus
bars
stiould
brsupported
so
teat
the
breaker
studs
will
not
be
subjected
to
unnecessary
strains
.
The
,
A
terminal
board
on
the
right
side
of
the
reaker
is
used
for
making
various
control
con
-
nections
with
breaker
devices
.
An
auxiliary
switch
on
the
left
side
of
the
breaker
is
used
for
some
WIRING
DIAGRAM
control
connections
and
for
connecting
various
*
"
-
auxiliary
accessories
.
wiring
diagram
,
Fig
.
1
,
shows
a
typ
elementary
and
itypfoftl
connection
diagram
with
the
breaker
in
the
open
position
.
When
normal
voltage
is
supplied
to
the control
circuit
,
either
by
closing
a
remote
switch
or
by
preening
the
push
button
PB
,
the
closing
contactor
X
coll
will
become
energized
through
contacts
When
disconaectfi
,
Fig
.
28
,
jure
used
,
the
break
-
bb
(
1
-
2
)
and
Y
:
(
4
-
3
)
.
The
X
contacts
will
close
,
er
is
placed
against
the
panel
so
that
the
disconnects
sealing
in
the
X
cou
through
contact
X
(
1
-
2
)
and
fit
over
the
stationary
studs
to
which
the
power
energizing
the
breaker
closing
coil
through
contacts
sflk
circuits
are
connected
.
Four
1
/
i
!
"
mounting
bolte
X
(
3
-
4
)
,
X
(
8
~
3
)
i
;
and
X
0
-
8
)
.
The breaker
will
than
w
'
are
teen
inserted
into
tee
holes
for
bolting
the
close
,
thereby
opening
the bb
contact
and
closing
breaker
to
the
pan
®
!
,
When
disconnects
fixe
not
the
aft
contact
,
of
the
prop
switch
,
Prop
switch
bb
used
,
the
power
circuits
are
bolted
'
,
to
tee
breaker
contact
will
open
tee
circuit
through
the
X
contactor
studs
after
bolting
tee
breakor
to
tea
panel
by
using
coil
,
thus
do
-
energising
the breaker
closing
coil
the
four
1
/
2
"
mounting
bolts
.
Breakers mounted
In
through
contacts
X
(
8
-
4
)
,
X
(
8
-
6
)
,
and
X
(
7
-
8
)
.
drawouts
or
an
enclosing
case
(
see
below
)
are
Prop
switch
aa
contact
will
cause
tee
permissive
equipped
with
disconnects
.
relay
Y
coll
to
become
energized
providing
contact
is
maintained
on
the
closing
switch
.
The
Y
relay
ENCLOSED
BREAKER
will
also
open
the
circuit
of
tee
X
contactor
coll
,
thereby
providing
an
anti
-
pump
feature
.
Hie
enclosed
air
circuit
breaker
is
shipped
in
,
_
.
. .
,,
,
.
.
.
„
an
enclosing
cage
.
To
install
the
enclosed
breaker
,
Operating
tee
remote
trip
switch
with
the
*
oceed
ns
follows
;
breaker
closing
will
cause
the
shunt
trip
eoil
.
be
*
,
,
_
,
n
„
„
come
energized
and
Will
trip
the
breaker
.
The
trip
(
a
)
General
Purpose
Indoor
Impulse
is
interrupted
by
an
"
ft
"
contact
of
the
1
.
Remove
sever
from
enclosure
.
auxiliary
switch
.
;
The
leal
The
structural
xmrface
to
’
which
the
breaker
U
\
bolted
must
be
flat
through
-
out
mid
the
supporting
structure
uuuflt
be
of
eumcient
strength
to
nold the
breaker
firmly
in
place
*
Minimum
cut
-
out
dimen
*
slons
muet
be
maintained
in
order
lo have
propftr
electrical
clearance
*
i
Courtesy of NationalSwitchgear.com

r
WIG
.
Air
Circuit
Breakers
Type
AK
-
l
-
lO
and
AK
-
1
-
26
OKH
-
IOOT
I
NOTTS
WHEN
SKMRATK
POWER
SOURCE
HW
CLOSING
got
B
im
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JUMPERS
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POWER
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'
ti
-
TERMINAL
OOARD
-
LOOATEP
UNDER
-
A
.
F
-
ANTMTIMI
?
PERMISSIVE
RELAY
,
0
-
(
GO
-
bb
)
-
MECHANISM
SWITCH
*
-
r
5
¥
r
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I
u
X
TRIP
t
oiose
till
Hh
-
-
-
Bfc
AS
.
»
•
I
S
/
WK
.
W
.
«
«
«
»
«
M
-
OfM
-
SHONT
TRIP
DEVICE
.
N
-
WAp
SOLENOID
OLOSING
COIL
.
P
-
wVl
'
OLOBINO
SWITCH
ON
BREAKER
.
T
~
TRANSFORMER
.
K
>
;
lit
iwx
,
*
«
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it
*
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-
.
^
rx
*
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e
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=
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.
U
.
£
%
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'
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>
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fir
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*
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DliffrMMt
5
i
Courtesy of NationalSwitchgear.com

PAGE
07
.
VlfZffZm
4
!
(
H
5
H
-
1007
Air
Circuit
Breakers
Type
AK
-
1
-
18
and
AK
-
l
-
SB
I
i
OPERATION
SSI
^
S
F
|
0
a
;
«
«
us
>
"
ai
"
I
?
ir
£
HT
-
«
«
the
maintenance
handle
is
shown
In
Fig
.
8
,
Use
of
B
!
tho
handle
in
an
upside
-
down
position
can
result
in
'
damage
to
the
breaker
parts
and
should
be
avoided
,
i
If
die
escutcheon
(
9
)
Fig
.
S
has
been
removed
from
the
breaker
,
the
maintenance
handle
can
no
longer
be
used
.
However
,
the
breaker
still
may
be
closed
manually
by
inserting
a
screw
driver
In
the
position
shown
In
Figs
,
E
and
6
A
,
and
then
rotating
its
lumdlo
upwards
and
towards
the
roar
of
the
breakert
The
breaker
may
be
tripped
manually
by
mmm
of
the
trip
button
or
automatically
by
any
of
the
trip
devices
with
which
it
la
equipped
*
.
i
•
m
r
‘
l
t
•
•
a
ai
in
i
i
r
“
H
m
iM
*
ft
*
&
S
3
n
R
«
A
uii
'
ELECTRICAL
m
*
•
T
'
cn
K
iM
u
-
ttilh
[
s
;
I
The
breaker
1
^
cio
@
ed
elegtricaiiy
by
mew
o
:
t
a
push
button
,
located
on
fixe
front
of
the
breaker
,
or
by
a
remote
switch
.
When
the
closing
contact
is
pade
the
x
contactor
becomes
energized
,
thereby
closing
the
x
contacts
and
energizing
the
breaker
cloning
solenoid
,
which
causes
the
breaker
to
clone
,
the
breaker
closer
?
,
the
prop
switch
causes
the
-
breaker
closing
solenoid
to
be
de
-
energized
*
#
5
*
MAtNTfiM
&
hGE
HANDLE
Fig
,
2
:
Utc
#
lag
Breaker
With
Manual
Ntltitonanc
*
When
\
:
*
*
MAINTENANCE
Always
Inspect
the
breaker
alter
a
short
circuit
Current
lias
been
interrupted
.
At
the
time
of
periodic
inspection
,
the
following
chock
#
should
bo
made
after
the
breaker
has
been
do
-
onorgiv
.
cd
,
:
INSPECTION
BEFORE
INSPECTION
OR
ANY
MAINTE
-
NANCE
WORK
IS
DONE
,
BE
SURE
THAT
THE
BREAKER
IS
IN
THE
OPEN
POSITION
.
ALL
ELECTRICAL
POWER
,
BOTH
PRIMARY
AND
CON
-
TROL
SOURCES
,
SHOULD
ALSO
BE
DISCON
-
NECTED
.
Periodic
inspection
of
the
circuit
breaker
is
recommended
at
least
once
a
year
.
More
frequent
Inspections
are
recommended
,
if
severe
load
condi
-
tions
,
dust
,
moisture
,
or
other
unfavorable
condi
-
tions
exist
.
2
.
Electrically
operate
the
breaker
several
'
tunes
to
ascertain
whether
the
electrical
attaclimenta
are
functioning
properly
.
3
,
Arc
trencher
(
See
Section
Quencher
”
)
,
1
,
Manuu
check
f
on
"
Arc
4
,
Contact
condition
,
wipe
,
and
pressure
(
See
'
Section
ion
"
Pole
unit
Assembly
”
)
,
0
.
Latch
engagement
(
See
Adjustments
under
"
Operating
Mechanism
"
)
,
0
.
Overload
device
tripping
(
See
Adjustments
W
under
1
"
Series
Overcurrent
Tripping
Device
'
!
)
.
If
the
breaker
remains
open
or
closed
for
a
long
period
of
time
,
,
It
le
recommended
that
arrangements
be
made
to
open
and
close
it
several
times
in
succession
,
,
preferably
under
load
.
At
all
tliuee
It
Is
important
not
to
permit
pencil
lines
,
paint
,
oil
or
other
foreign
materials
to
remain
ion
the
insulating
surfaces
of
the
breaker
as
they
'
may
cause
low
resistance
between
points
of
different
,
potential
and
result
in
eventual
electrical
breakdown
.
H
6
Courtesy of NationalSwitchgear.com

;
j
PAGE
08
A
,
tr
Circuit
Breakers
Type
AK
-
I
-
15
and
AK
-
1
-
25
GEH
-
1807
TOOLS
5
/
8
"
8
/
8
"
H
/
3
SJ
»
.
0
/
1
flv
open
End
Wrench
•
sSEsVSKSSKSs
#
1
BUiiupa
Screw
Driver
Brtver
with
8
"
shaft
#
3
Phillips
Screw
Driver
JrRrtr
"
?
^
(
Short
)
Screw
Driver
2
Cre
?
^
wt
(
Lonij
Thin
)
Screw
Driver
K
.
30
G
Crescent
(
Standard
)
Screw
Driver
H
-
28
8
"
Gas
Pliers
*
6
?
f
Fliers
$
JXaWee
£
arc
Pliers
Straight
f
#
2
Waldea
Truarc
PHcrs
9
(
r
&
an
V
/
W
AUen
Jie
»
d
wrench
for
{
§
l
-
nw
?
&
*
Allen
Bead
Wrench
for
#
10
Serov
i
/
8
Alkiii
Head
Wrench
for
1
/
4
"
Screw
5
/
10
’
Straight
shank
Allen
Head
Wrench
for
8
/
0
»
ecrerw
,
with
adapter
for
1
/
2
"
drive
ratchet
8
OK
*
Bail
pooh
hammer
5
/
0
H
8
point
open
box
wrench
3
/
0
"
Spintite
*
lg
-
lc
Ratchet
Socket
Wrench
1
/
2
"
7
/
i
8
n
-
1
/
2
"
Drive
Socket
9
/
16
»
•
5
/
8
»
LUBRICATION
Drive
.
:
-
.
V
?
H
Drive
Socket
~
1
/
2
"
Drive
Socket
3
/
4
»
~
1
/
2
»
Drive
Socket
13
/
10
»
-
1
/
2
»
Drive
Socket
16
/
16
"
,
-
1
/
2
"
Driver
Socket
10
"
Extension
Bar
1
/
2
"
Drive
6
"
Extension
Bar
1
/
2
"
Drive
In
general
,
the
circuit
breaker
requires
moderate
lubrication
.
Bearing
points
and
latch
Surfaces
should
;
be
Lubricated
at
the
regular
in
-
spection
periods
with
a
thin
film
of
extreme
temperature
,
Mgh
^
preesure
.
light
grease
similar
to
*
E
,
Spec
*
NO
.
|
DB
0
J
9
L
15
,
Hardened
grease
and
dirt
should
be
remended
from
latch
and
bearing
surfaces
by
using
kerosene
,
ALL
EXCESS
LUBRICANT
SHOULD
BE
HEMOVED
WITH
A
CLEAN
CLOTH
IN
ORDER
TO
AVOID
ANY
ACCUMULATION
OF
DIRT
OR
DUST
*
O
8
"
.
Adjustable
End
Wrench
,
$
»
:
S
"
oSftJwSL
?
*
E
,
ul
Wra
,
ch
TROUBLE
SHOOTING
%
In
'
-
rr
*
i
•
.
TROUBLE
CAUSE
REMEDY
I
Overheating
Contacts
not
aligned
*
I
;
Adjust
contacts
-
j
i
Contacts
dirty
,
greasy
or
coated
with
dark
film
-
;
|
Clean
contact
#
,
;
is
Replace
contacts
.
Contacts
badly
burned
or
pitted
.
Current
carrying
surfaces
dirty
.
!
Clean
surfaces
of
current
carrying
porta
.
i
lighten
,
but
do
not
exceed
iclosUc
limit
of
bolts
or
fittings
,
•
Decrease
toad
,
rearrange
circuit
or
Install
larger
breaker
.
Provide
adequate
ventilation
.
Bolts
and
nubs
at
terminal
connections
not
tight
.
Current
in
Excess
of
breaker
rating
.
Excessive
ambient
temperature
.
Travel
of
tripping
device
docs
not
provide
positive
release
of
tripping
latch
,
Worn
or
damaged
trip
unit
parts
.
Binds
in
overload
device
.
’
fT
’
Pf
'
TTT
*
'
Rfc
-
adjuat
or
replace
trip
unit
.
Failure
to
Trip
»
Replace
trip
twit
Replace
overload
device
.
nrn
-
fwn
Change
adjustment
or
replace
with
higher
rated
device
.
Change
adjustment
or
replace
Mth
higher
rated
device
.
Overload
pick
-
up
too
low
.
Faleo
Tripping
Overload
time
-
setting
too
short
.
Replace
devi
.
ee
.
Re
-
aligu
and
adjust
attachments
*
Bind
in
Oyerload
device
.
Binding
in
attachments
preventing
resetting
of
latch
.
Chipped
or
worn
latch
*
Latch
out
of
Adjustment
.
Failure
to
Close
and
Latch
*
Replace
latch
.
Adjust
latch
.
r
+
v
*
"
*
“
1
T
-
'
vtr
I
7
:
i
Courtesy of NationalSwitchgear.com

\
rr
^
u
.
*
.
Uwfi
-
'
lO
07
i
Mr
Circuit
Breakers
Type
AK
-
l
-
16
ana
AK
-
l
-
SB
I
i
i
2
I
•
126
N
5
"
A
•
rt
,
*
.
6
~
7
—
9
-
icm
r
*
—
»
©
f
:
iTir
-
•
a
»
H
S
HrtlL
-
’
•
H
,
10
‘
T
“
v
o
o
I
(
I
I
I
L
'
rr
-
i
!
I
!
i
f
(
i
'
ft
4
i
v
~
^
^
l
I
i
§
!
TIWlWH
\
M
IE
1
WTW
$
13
/
J
•
\
t
21
.
Stud
22
.
ttovfehU
Ckmt
«
«
t
2
$
.
Fihmr
Str
*
^
SMI
.
Rear
Support
StftdL
H
«
m
«
125
$
.
P
&
1
*
Unit
16
.
ttairt
Sinait
17
.
Cap
IS
.
fttrAtlf
1
»
*
lMw
.
lmt
.
iR
*
Llhfe
20
,
Stationary
Owitaet
7
-
Operating
tyftCliiltilMt
B
«
Mtx
^
tiof
Itormr
IH
mx
9
.
Ftimt
Kscutdm
10
.
Ki
4
>
U
*
trip
Rut
ft
12
.
Stop
ttut
13
.
(
Eraiuurrant
Trip
Xjwlc
*
14
.
bow
*
Stud
15
.
Sari
»
«
Oil
1
*
Muffler
2
-
rnuidc
Barrier
3
.
Outaido
Harriot
4
.
Front
Op
5
.
CllRMp
6
.
Ptr
*
p
FI
®
,
$
Rifrtit
tIdo
Vim
/
of
Br
®
ak
«
r
:
;
.
s
!
:
I
i
r
Courtesy of NationalSwitchgear.com

-
J
«
u
i
rrvn
-
*
Air
Circuit
Breakers
Type
AK
-
X
-
XO
and
AK
-
1
-
25
TROUBLE
(
SHOOTING
GEH
-
1007
N
TROUBLE
CAUSE
REMEDY
Failure
to
Close
and
Latch
jissft
?
s
&
swsss
bearing
and
latoh
Mrium
,
Clpeini
?
:
nolenold
burned
out
,
Solenoid
control
device
not
fimcUontny
Replace
spring
.
Clean
bearing
and
latch
ffurfaccs
*
.
Replace
solenoid
coil
,
Ke
-
udjuat
or
replace
device
.
on
\
BASIC
©
REAKER
COMPONENTS
ARC
QUENCHER
J
contact
carrier
(
IB
)
with
a
spring
(
17
)
which
pro
-
vldes
continuous
contact
between
the
contact
arms
and
pin
(
IB
)
,
-
A
clamp
(
14
)
secures
pin
(
IB
)
to
the
contact
support
(
IB
)
,
A
flexible
connection
(
12
)
is
provided
to
prevent
pitting
at
thd
pivot
point
of
the
movable
contact
arms
when
carrying
high
moment
.
ibry
currents
.
T
-
The
movable
;
contact
assembly
is
connected
to
the
main
abaft
(
IB
)
,
Fig
,
3
,
by
an
insulating
link
(
7
)
for
operating
the
contact
*
when
the breaker
closes
*
A
definite
amount
of
contact
pressure
(
see
"
Mea
©
~
wring
Contact
Pressure
"
)
must
be exerted
by
the
movable
contacts
against
the
stationary
contact
©
.
A
definite
amotini
of
contact
wipe
,
or
the
distance
stationary
contacts
are
pushed
to
the
rear
by
the
movable
contacts
(
see
"
Measuring
Contact
wipe
"
)
,
must
recmlt
during
the
closing
operation
.
Both
contact
pressure
and
contact
wipe
should
be
checked
at
the
regular
inspection
period
*
-
Ja
arsfcf
?
,
ns
number
of
perforations
and
two
outside
barriers
(
]
}
)
without
perforation
.
?
,
a
«
well
aa
a
front
cap
(
4
)
and
a
rear
support
(
24
)
held
in
place
by
a
fiber
stop
(
23
)
*
A
damp (
5
)
is
attached
to
the
breaker
bane
by
two
bolts
.
Clamp
(
Si
)
hold
*
all
the
arc
quencher
“
•
nsemblioe
to
their
respective
pole
units
.
A
muf
-
fler
(
1
)
ia
located
on
top
of
the
compound
barriers
.
The
compound
harriers
and
the
muffler
,
together
with
the
slots
between
the
barrier
*
!
,
serve
to
ex
-
tinguish
the
arc
,
,
v
'
Tbfe
arc
quenchers
should
be
inspected
at
the
regular
iftspootion
period
and
partii
replaced
,
if
badly
burned
or
corroded
*
’
•
PLACEMENT
,
FIG
*
3
;
that
the
%
L
Remove
clammy
(
6
)
by
removing
two
bolta
,
,
)
2
»
Unclasp
fiber
strap
(
23
)
,
'
3
,
Remove
front
Cap
(
4
)
,
muffler
(
1
)
,
outside
barriers
(
3
)
,
inside
barriers
(
2
)
and
rear
support
(
24
)
,
4
*
Install
new
or
disassembled
parts
hi
re
-
verse
order
*
MEASURING
CONTACT
PRESSURE
,
FIG
.
0
1
.
Romove
arc
quencher
.
(
gee
"
Replacements
"
under
Arc
Quencher
)
.
2
.
Place
a
push
-
typo
scale
against
the
upper
end
of
m
<
)
stationary
contact
tip
(
3
)
with
the
breaker
closed
.
3
.
Exert
pressure
against
the
push
-
typo
scale
until
the
contacts
Just
part
.
When
the
con
-
part
ithe
scale
should
register
between
0
pounds
,
4
.
Re
-
assemble
parts
In
reverse
order
.
NOTE
:
In
re
-
assembling
the
rear
support
(
24
)
to
the
breaker
,
be
sure
and
push
the
rear
support
toward
the
top
of
the
.
pole
unit
so
that
the
clearance
in
the
rear
support
will
accommodate
the
screw
-
head
of
the
back
plate
.
tacts
4
and
MEASURING
CONTACT
'
WIRE
,
FIG
.
6
POLE
UNIT
ASSEMBLY
The
contact
assembly
of
each
pole
unit
con
-
sists
of
a
stationary
and
a
movable
contact
sub
-
,
assembly
.
Refer
to
Fig
.
0
.
1
.
Remove
(
trie
quencher
(
see
’
’
Replacements
’
4
under
Arc
Quencher
)
.
,
it
,
,
,
2
.
Measure
ti
.
tie
dimension
between
the
inside
surface
of
the
pole
base
and
the
top
edge
of
stationary
contact
Up
(
3
)
,
(
a
)
with
the
breaker
open
,
(
b
)
with
the
breaker
closed
.
3
.
The
difference
,
between
ibese
Wo
Measure
-
ments
should
be
within
the
limits
of
3
/
32
and
1
/
4
"
.
'
If
not
within
this
range
,
the
con
-
tact
wipe
;
adust
be
adjusted
.
4
.
With
the
breaker
closed
,
the
.
stationarycon
-
tacts
should
have
a
minimum
of
1
/
16
overtravel
,
measured
at
the
contact
tips
,
before
reaching
the
limit
of
their
movement
in
the
direction
of
closing
.
t
>
,
Replace
arc
quencher
,
stationary
contact
assembly
consisin
of
araliel
contact
fingers
(
3
)
with
silver
alloy
tips
,
0
.
upper
stud
(
20
)
and
nine
(
4
)
with
comprenalon
springs
(
lfl
)
which
provide
continuous
contact
pres
-
sure
between
the
contact
finger
*
*
smd
the
upper
stud
(
20
)
.
A
shunt
(
21
)
IS
used
to
prevent
,
pitting
at
the
pivot
point
of
the
stationary
fingers
when
carrying
high
momentary
currents
,
,
The
station
-
ary
conWt
fingers
are
held
in
place
by
the
upper
>
A
cap
(
6
)
.
The
movable
contact
assembly
consist
®
of
parallel
contact
arms
(
S
)
with
sliver
alloy
tips
,
a
The
the
B
9
Courtesy of NationalSwitchgear.com

r
fvat
.
i
l
GEB
-
1007
Air
Circuit
Breakers
Typo
AK
-
1
-
3.5
and
AK
-
1
-
23
ADJUSTING
CONTACT
WIPE
AND
CONTACT
PRESSURE
,
FIG
.
G
G
.
Remove
Insulating
link
(
7
)
by
removing
tru
-
aro
and
drifting
out
pin
(
11
)
,
A
7
.
Rernpvo
clamps
(
14
)
by
removing
fastening
57
*
hardware
.
0
*
Remove
series
coil
terminal
bolts
.
Movable
contact
unit
Is
now
free
and
may
be
removed
.
9
,
Breako
*
may
now
be
reassembled
with
new
contact
assembly
by
reversing
the
above
described
procedure
*
In
remounting
mech
-
anism
,
;
be
sure
that
dowels
in
mechanism
side
frames
are
well
seated
in
dowel
holes
in
the
pole
unit
bane
,
(
See
Fig
.
a
,
)
It
will
also
be
]
necessary
to
compress
the
opening
spring
and
cap
in
the
recess
In
the
mech
-
anism
glide
frame
in
order
to
obtain
clear
*
*
anoe
for
replacement
of
the
main
shaft
,
10
,
Check
contact
wipe
and
pressure
and
adjust
if
necessary
.
1
.
Remove
arc
quenchers
(
nee
'
’
Replacements
"
under
Arc
Quencher
)
*
2
.
Remove
tru
-
arc
retaining
ring
from
main
shaft
(
1
(
5
)
,
Fig
,
3
,
nearest
the
Insulating
link
and
contact
assembly
to
be
adjusted
,
3
.
Loosen
clamp
(
9
)
which
secures
eccentric
bushing
{
&
)
.
4
.
Turn
the
eccentric
bushing
in
the
Insulating
Unk
(
7
)
tJireby
.
moving
the
insulating
.
link
closer
or
farther
away
from
the
stationary
contacts
,
a
«
required
to
obtain
proper
wipe
*
h
.
Reassemble
porta
in
the
reverse
order
after
making
adjustments
,
NOTE
:
To
adjust
the
insulating
link
in
the
center
pole
unit
,
first
,
push
the
main
shaft
through
the
right
Iiand
insulating
link
and
into
the
center
Unk
a
$
described
in
item
2
and
3
above
.
Opening
spring
and
cap
will
drop
out
.
Adjust
center
in
-
sulating
link
as
described
in
item
4
above
,
He
*
assemble
ports
in
reverse
order
being
careful
to
replace
opening
spring
and
cap
in
their
proper
position
.
;
MEGJWYISM
MOU
^
NO
If
any
of
the
contacts
are
badly
corroded
or
pitted
,
thereby
making
It
impossible
to
adjust
for
proper
-
contact
pressure
'
or
contact
wipe
,
such
stationary
contacts
or
movable
contact
assemblies
Should
be
replaced
*
See
"
Replacement
*
"
below
.
If
the
proper
contact
pressure
does
not
exist
^
ep
the
wipe
is
within
its
limits
,
the
stationary
ntact
springs
must
be
replaced
.
’
'
^
PLACEMENTS
movable
Contact
Assembly
,
Fig
.
0
c
,
INTERLOCK
LEVEC
^
V
'
v
,
^
a
»
"
,
:
ay
.
u
:
V
HANDLE
-
•
SOCKET
r
,
‘
Kii
ArQ
Quencher
*
md
-
Handle
Socket
ftoActfftd
from
Dr
«
M
>
u
-
t
Breaker
X
*
Remove
arc
quenchers
(
see
"
Replacement
"
under
"
Arc
Quencher
"
)
,
2
.
Remove
main
shaft
from
breaker
by
re
-
moving
tru
-
arc
retainer
from
owe
end
and
pushing
abaft
through
insulating
links
(
7
)
.
As
shaft
clears
the
mechanism
side
frame
®
,
5
,
„
,
(
17
)
and
(
IS
)
Out
of
their
re
-
•
a
*
FI
H
>
*
m
«
o
s
•
>
rr
!
?
#
*
&
opening
springs
and
caps
3
,
will
probably
drop
cesses
in
the
side
frames
*
If
breaker
is
of
the
drawout
typo
,
handle
socket
,
Interlock
lever
,
bushing
and
nut
must
be
removed
on
side
from
which
the
main
shaft
,
is
to
be
removed
*
(
See
Figs
,
4
and
B
.
)
3
.
Remove
upper
mechanism
mounting
screws
(
refer
to
Fig
.
4
)
.
4
.
-
Loosen
lower
mechanism
mounting
screws
by
using
screw
driver
in
slot
provided
on
threaded
end
of
screw
which
projects
through
back
frame
of
breaker
*
(
See
Fig
,
7
.
)
5
*
Mechanism
and attached
components
may
now
be
lifted clear
of
the
breaker
*
n
breaker
is
of
the
drawout
type
,
movement
;
of
the
mechanism
will
be
somewhat
,
re
-
stricted
by
control
wires
.
There
will
be
enough
freedom
,
however
,
to
allow
dm
mech
-
anism
to
be
lifted
to
the
top
of
the
drawout
frame
,
whore
it
can
bo
secured
by
tying
*
(
Sue
Fig
*
6
.
)
the
va
I
.
•
Vu
.
Fig
.
MAIN
SHAI
?
T
11
fefii
'
<
?
ft
"
'
.
-
/
1
1
*
i
*
Wi
l
!
r
>
1
*
1
w
feff
’
i
"
V
»
nr
-
si
/
'
U
*
1
iRETAININ
^
iWfe
^
W
^
^
.
'
FI
«
.
5
taovsl
of
N
*
ln
Shaft
Urn
Drawout
Break
str
10
;
\
Courtesy of NationalSwitchgear.com