GE ML-14-0 - CLOSING OPERATION

Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
GEK
7153
remain
energized
until
the
springs
are
fully
charged
and
the
control
and
motor
limit
switch
(
17
)
,
Fig
.
4
,
contacts
are
reset
.
The
closing
springs
may
be
charged
manually
if
control
voltage
is
lost
.
A
standard
5
/
8
inch
ratchet
wrench
should
be
used
to
rotate
the
eccentric
in
a
counterclockwise
direction
until
the
indicator
reads
“
CHARGED
”
and
the
driving
pawl
no
longer
engages
the
ratchet
wheel
.
The
use
of
the
ratchet
wrench
provides
for
maximum
safety
in
the
event
that
control
power
is
suddenly
restored
without
warning
.
In
this
event
,
the
motor
drive
will
take
over
again
and
continue
to
'
charge
the
springs
while
the
ratchet
wrench
harmlessly
turns
in
the
unloaded
direction
.
Removing
the
fused
pullouts
(
4
)
,
Fig
.
4
,
will
prevent
the
power
from
being
applied
when
it
is
not
required
.
CLOSING
OPERATION
Closing
the
breaker
is
accomplished
by
energizing
the
closing
coil
(
20
)
,
Fig
.
3
,
or
by
manually
pressing
the
close
button
(
24
)
,
Fig
.
2
.
In
either
case
,
the
closing
latch
(
8
)
,
Fig
.
9
,
is
rotated
away
from
the
closing
latch
roller
(
29
)
,
Fig
.
9
,
per
-
mitting
the
springs
to
discharge
.
The
energy
of the
springs
is
applied
to
the
rotation
of
a
cam
(
39
)
,
Fig
.
10
,
which
closes
the
breaker
through
a
simple
link
-
age
that
remains
trip
free
at
all
times
.
A
monitoring
switch
(
3
)
,
Fig
.
6
,
operated
by
the
closing
latch
(
8
)
,
Fig
*
9
,
will
start
the
spring
-
charging
motor
(
34
)
,
Fig
.
9
,
after
it
is
fully
reset
.
Fig
.
18
Position
of
Linkage
-
Mechanism
Open
Undotted
cam
indicates
closing
spring
charged
*
Dotted
cam
indicates
closing
spring
discharged
.
m
When
the
breaker
is
closed
without
power
to
the
spring
or
charging
motor
,
the
cam
(
39
)
,
Fig
,
10
,
is
in
the
position
of
the
dotted
cam
shown
in
Fig
.
16
.
This
is
due
to
the
motor
not
forcing
the
cam
into
the
undotted
cam
position
shown
in
Fig
,
16
since
the
motor
did
not
start
charging
the
springs
immediately
upon
closing
the
breaker
as
it
does
during
a
normal
closing
operation
when
the
motor
is
energized
.
DO
NOT
OPERATE
THE
MANUAL
CLOSE
BUTTO N
WHEN
THE
BREAKER
IS
CLOSED
.
If
the
button
is
'
pushed
,
the
energy
stored
in
the
springs
will
be
dissipated
against
the
stop
pin
Fig
.
19
Position
of
Linkage
-
Mechanism
Going
Open
23
Courtesy of NationalSwitchgear.com