GE ML-14-0 - CONTROL POWER CHECK

Spring
-
charged Operating
Mechanism
Type
ML
-
14
-
0
GEK
7153
A
1
.
Trip
latch
wipe
(
with
trip
latch
resting
against
stop
pin
)
. .
2
.
Trip
latch
clearance
3
.
Trip
latch
nominal
clearance
4
.
Closing
prop
clearance
5
.
Closing
prop
wipe
6
.
Closing
latch
wipe
7
.
Closing
latch
monitoring
switch
(
“
CL
/
MS
”
)
clearance
.
,
8
.
Motor
limit
switches
(
“
SM
/
LS
”
)
maximum clearance
. . .
9
.
Driving
pawl
minimum
driving
clearance
10
.
Latching
pawl
minimum
latching
clearance
11
.
Latching
pawl
-
rachet wheel clearance
.
. . .
. .
. .
The
driving
pawl
and
latching
pawl
clearance
should
be
approximately
equal
.
12
.
Trip
latch
checking
switch
(
“
lc
”
)
minimum
clearance
. . . .
(
Y
Fig
.
15
)
13
.
Trip
latch
checking
switch
(
“
lc
”
)
contacts
just
make
when
the
gap
between
the
trip
latch
and
the
stop
pin
is
.
.
14
.
Trip
coil
plunger
free
travel
minimum
,
15
.
Closing
coil
plunger
free
travel
minimum
16
.
Anti
-
condensation
heater
.
(
U
Fig
.
13
)
.
(
R
Fig
.
13
)
.
(
R
Fig
.
13
)
•
(
V
Fig
.
13
)
.
(
K
Fig
.
13
)
.
(
X
Fig
.
15
)
.
.
(
T
Fig
.
13
)
.
,
(
Z
Fig
.
15
)
.
.
(
Q
Fig
.
14
)
. .
(
P
Pig
-
14
)
.
.
(
H
Fig
.
14
)
3
/
16
inch
to
1
/
4
inch
1
/
32
inch
to
3
/
32
inch
0.045
inch
1
/
16
inch
to
5
/
32
inch
3
/
16
inch
to
3
/
8
Inch
3
/
16
inch
to
1
/
4
inch
0.005
to
0.032
inch
1
/
32
inch
0.040
inch
0.040
inch
0.015
to
0.030
inch
1
/
64
inch
(
W
Fig
.
15
)
1
/
16
inch
1
/
8
inch
1
/
8
inch
functioning
continuously
(
S
Fig
.
13
)
(
F
Fig
.
15
)
the
cylinder
are
properly
lubri
-
cated
.
(
Refer
to
OPERATION
AND
MAINTENANCE
.
)
Closing
Range
Tripping
Range
J
,
Check
that
the
ground
connec
-
tions
are
properly
made
and
tightened
.
K
.
Make
certain
that
all
pipe
plugs
and
bolted connections
are
properly
tightened
and
that all
covers
and
gaskets
are
properly
installed
to
prevent
entrance
of
moisture
.
§
3
Nominal
Voltage
Mini
*
Maxi
-
mum
mum
Mini
-
Maxi
-
mum
mum
F
.
Operate
the
breaker
slowly
with
the
manual
charging
wrench
and
note
that
there
is
no
excessive
binding
or
friction
and
that
the
breaker
can
be moved
to
the
fully
opened
and
fully
closed
positions
.
36
-
52
v
d
-
c
90
-
130
v
d
-
c
180
-
260
v
d
-
c
95
-
125
v
a
-
c
190
-
250
V
a
-
c
48
v
d
-
c
125
v
d
-
c
2
S
0
v
d
-
c
115
v
a
-
c
230
v
a
-
c
28
-
60
v
d
-
c
70
-
140
v
d
-
c
140
-
280
v
d
-
c
95
-
125
v
ac
-
190
-
250
v
a
-
c
If
the
closed
circuit
voltage
at
the
terminals
of
the
coil
or
motor
does
not
fall
in
the
specified
range
,
check
the
voltage
at
the
source
of
power
and
line
drop
between
the
power
source
and
breaker
.
L
.
Reset
the
69
switch
if
remote
tripping
is
used
.
G
.
Operate
the
mechanism
electri
-
cally
and check the
following
points
:
CONTROL
POWER CHECK
a
.
Closing
,
opening
,
reclosing
and
trip
-
free
times
.
After
the
mechanism
has
been
closed
and
opened
slowly
several
times
with
the
maintenance
closing
wrench
and the
mechanism
adjustments
are
checked
as
described
,
the
closed
circuit
operating
voltages
should
be
checked
at
the
release
coil
,
trip
coil
,
and
motor
terminals
.
For
electrical
operation
of
the
mechanism
,
the
control
power
may
be
either
an
alter
-
nating
or
direct
current
source
.
The
operating
ranges
for
the
closing
and
trip
-
ping
voltages
are
given
on
the breaker
nameplate
.
The
following
ranges
are
standard
:
When
two
or
more
breakers
oper
-
ating
from
the
same
control
power
source
are
required
to
dose
simultaneously
,
the
closed
circuit
voltage
at
the
closing
coil
or
motor
of
each breaker
must
fall
within
the
specified
limits
.
Electrical
closing
or
opening
is
accomplished
by energizing
the
closing
or
trip
coil circuit
.
It
is
also
possible
to
trip
or
close the
breaker
manually by
pressing
the
manual
trip
lever
(
19
)
,
Fig
.
2
,
or
the
manual close
button
(
24
)
.
b
,
Minimum
trip
and
closing
voltage
.
H
.
vSee
that
all
points
where
the
surface of
the
paint
has
been
damaged
during
installation
are
repainted
immediately
.
I
.
Make
a
final
check
that
the
breaker is
securely
fastened
to
its
foundation
and
properly
leveled
.
21
:
Courtesy of NationalSwitchgear.com