GE POWER/VAC GEK 86132A - Page 9

r
the
spring
load
is
held
by
the
closing
latch
,
the
spring
indicator
(
8
,
Fig
,
2
)
will
change
from
“
DISCHARGED
”
to
“
CHARGED
”
,
and
a
positive
snap
will
be
heard
as
the
spring
travels
over
center
,
After
the
spring
is
completely
charged
,
as
indicated
above
,
further
forcing
the
charging
handle
may
cause
damage
to
the
closing
latch
and
its
associated
parts
.
5.4
,
TRIP
-
FREE
OPERATION
.
(
REFER
TO
FIG
.
9
)
The
linkage
is
mechanically
trip
-
free
in
any
location
on
the
closing
stroke
.
Electrically
energizing
the
trip
coil
while
closing
will
,
after
the
auxiliary
switch
contacts
change
po
-
sition
,
rotate
the
trip
latch
and
permit
the
circuit
breaker
to
open
fully
.
The
linkage
will
reset
as
in
a
normal
open
operation
and
the
closing
spring
will
recharge
as
described
under
SPRING
CHARGING
.
7.3
.
CLOSING
SPRING
GAG
Insert
the
closing
spring
gag
plate
(
1
,
Fig
.
4
)
by
opening
the
closing
spring
gag
hole
cover
and
inserting
the
tip
of
the
,
gag
plate
between
the
end
of
the
spring
and
the
spring
guide
and
engaging
the
detentes
on
the
gag
plate
into
the
slots
In
‘
the
closing
spring
guide
.
Note
that
when
the
closing
spring
'
guide
is
exposed
for
gagging
,
an
interference
angle
is
exposed
on
the
left
side
of
the
breaker
(
I
,
Fig
.
II
)
.
With
the
closing
spring
in
the
gagged
position
,
this
angle
will
provide
interference
preventing
use
of
the
lift
truck
and
racking
of
the
breaker
element
.
No
attempt
should
be
made
to
alter
,
,
modify
-
or
othewise
make
inoperative
this
safety
feature
.
With
the
gag
plate
in
position
,
depress
the
manual
close
button
.
This
action
will
partially
discharge
the
closing
spring
and
also
partiaiiy
close
the
vacuum
interrupter
contacts
.
Do
not
energize
tjie
secondary
control
circuit
at
this
time
.
6
.
CONTROL
CIRCUIT
A
typical
POWER
/
VAC
circuit
breaker
ML
-
18
mechan
-
ism
wiring
diagram
is
shown
in
Fig
.
10
.
Check
the
wiring
diagram
supplied
with
the
actual
circuit
breaker
for
its
wiring
.
The
close
spring
charging
motor
circuit
is
established
through
the
CL
/
MS
switch
if
the
close
latch
is
reset
and
the
SM
/
LS
switch
if
the
closing
spring
is
discharged
,
When
the
closing
spring
is
charged
,
the
SM
/
LS
interrupts
the
circuit
.
The
close
coil
circuit
is
established
through
two
normally
closed
52
Y
relay
contacts
,
and
the
latch
checking
switch
LCS
,
if
the
trip
latch
is
reset
.
An
auxiliary
switch
contact
52
b
is
also
in
series
with
the
close
coil
and
closes
when
the
breaker
is
open
and
opens
when
the
breaker
is
closed
.
During
a
,
close
operation
,
cam
rotation
closes
the
SM
/
LS
contact
allowing
the
52
Y
relay
to
be
energized
opening
its
contacts
in
the
close
coil
circuit
and
sealing
itself
in
through
one
of
its
own
contacts
to
the
close
signal
.
This
seal
-
in
action
prevents
reclosing
on
a
sustained
close
command
as
the
close
signal
must
be
removed
to
drop
out
the
Y
relay
and
reestablish
the
closing
circuit
,
thereby
providing
an
anti
-
pump
feature
.
Circuit
breaker
mounted
auxiliary
switch
contacts
not
used
in
the
control
circuit
are
brought
out
for
control
and
indication
functions
.
The
metalclad
equipment
may
provide
a
breaker
-
operated
stationary
auxiliary
switch
for
addtional
contacts
.
S
'
'
\
7
,
4
.
SLOW
CLOSING
To
manually
slow
close
the
breaker
contacts
,
put
the
manual
charge
handle
on
the
manual
charge
lever
and
move
the
handle
up
and
down
.
The
breaker
will
be
fully
closed
when
the
spring
charge
indicator
shows
“
CHARGED
;
(
CA
UT
10
N
:
WITH
THE
GAG
PLATE
INSTALLED
.
THt
BREAKER
CLOSED
AND
OPENING
SPRINGS
CHARGED
,
THE
BREAKER
CAN
BE
TRIPPED
AT
FULL
SPEED
.
y
•
\
7.5
.
GAG
PLATE
REMOVAL
To
remove
the
gag
plate
,
the
closing
spring
must
be
ftillv
charged
.
If
the
spring
charge
indicator
does
not
show
“
CHARGED
"
in
the
window
,
manually
charge
the
spring
until
it
does
.
Lift
up
and
push
in
on
the
gag
plate
to
clear
the
detentes
on
the
gag
plate
from
the
slots
in
the
closing
spring
guide
.
While
holding
the
gag
plate
up
,
remove
it
from
the
opening
.
Close
the
gag
hole
cover
.
For
safety
,
first
close
the
breaker
by
depressing
the
manual
“
CLOSE
”
button
and
then
depress
the
manual
“
TRIP
"
button
.
All
stored
energy
is
'
tiSW
v
^
$
r
'
7
.
MECHANICAL
CHECKING
AND
SLOW
CLOSING
7
*
1
.
VISUAL
INSPECTION
Visually
inspect
the
circuit
breaker
for
any
signs
of
damage
or
loose
hardware
.
7.2
.
CLOSING
SPRING
CHARGING
Manually
charge
the
breaker
closing
spring
using
the
charging
handle
provided
(
l
,
Fig
,
5
)
,
The
closing
spring
is
charged
by
a
ratcheting
mechanism
that
advances
by
one
ratchet
tooth
at
a
time
.
When
the
spring
is
fully
charged
and
removed
from
the
breaker
.
5
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