GE ML-14-0 - OPERATION; SPRING CHARGING

GEK
7153
Spring
-
charged
Operating
Mechanism
Type
ML
-
14
*
0
OPERATION
#
The
ML
-
14
operating
mechanism
is
of
the
stored
-
energy
type
designed
to
give
high
speed
closing
and
opening
.
The
mechanism
will
operate
on
a
-
c or
d
-
c
voltage
.
The
operating
voltage
is
indicated
on
the
breaker
nameplate
.
Closing
and
opening
operations
are
controlled
elec
-
trically by
the
remote
relaying
,
and
mechanically
by
the
manual
close
and
trip
levers
located
behind
the
front
door
of
the
mechanism
house
.
>
&
X
£
<
D
*
r
*
H
>
SPRING
CHARGING
T
-
-
<
o
Q
The mechanism
consists
of
a
high
speed
gear
motor
(
11
)
,
Fig
.
2
,
that
compresses
a
set
of
closing
springs
(
12
)
,
and
(
28
)
,
through
the
action
of
a
simple
eccentric
(
25
)
,
a
ratchet
wheel
(
22
)
,
and
pawl
(
4
)
,
Fig
.
5
,
assembly
.
The
rotary
action
of
the
motor
is
converted
to
a
short
straight
stroke
pumping
action
through
the
eccentric
and
a
driving
link
(
8
)
,
Fig
.
5
,
that
carries
a
spring
-
loaded
driving
pawl (
4
)
,
Fig
.
5
.
CN
CO
CO
o
\
o
W
)
Hi
oe
»
ra
Fig
.
16
Position
of
Linkage
-
Mechanism
Closed
Undotted
cam
indicates
closing
spring
charged
.
Dotted
cam
indicates
closing
spring
discharged
.
t
The
driving
pawl
(
4
)
,
Fig
.
5
,
advances
the
ratchet
wheel
(
17
)
,
Fig
.
3
,
only
a
few
degrees
each stroke
where
it
is
held
in
position
by
the
latching
and
safety
pawls
(
16
)
,
Fig
.
3
.
When
the
ratchet
wheel
has
been
rotated
approximately
180
degrees
the
closing
springs
(
11
)
and
(
22
)
,
Fig
.
3
,
will be
fully
compressed
.
As
the
ratchet
wheel
continues
to rotate
,
the
spring
load
will
shift
overcenter
and
attempt
to
discharge
,
but
will be
prevented
from
discharging
by
the
closing
latch
(
8
)
,
Fig
.
9
.
After
only
a
few
degrees
of
rotation
,
the
closing
latch roller
(
29
)
,
Fig
.
9
,
will
engage
the
closing
latch
(
8
)
,
Fig
.
9
,
and
the
compressed
springs
will be
held
in
repose
until
a
closing
operation
is
required
.
During
the last
few
degrees
of
the
ratchet
wheel
rotation
the
motor
limit
switches
(
17
)
,
Fig
.
4
,
are
released
and
the
driving
pawl
(
4
)
,
Fig
.
5
,
is
raised
from
the
ratchet
wheel
surface
.
This
allows
the
motor
and
driving
mechanism
to
coast
to
a
natural
stop
expending
all
residua
!
energy
.
(
N
>
<
U
K
—
I
X
%
&
(
/
3
5
O
Q
<
N
ro
00
s
.
$
P
PH
During
the time
the
springs
are
being
compressed
the
cutoff
and
,
anti
-
pump
relay
52
Y
(
22
)
,
Fig
.
4
,
locks the
closing
power
circuits
open
.
The
52
Y
relay
will
i
awrn
JOT
Fig
.
17
Position
of
Linkage
-
Mechanism
Going
Closed
22
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