GE Magne-Blast AM-13.8-1000-3H - Page 12

GEI
-
88766
Opening
and
Closing
Speeds
w
.
-
The
closing
speed
of the
arcing
contact
of the
breaker
should
be
a
mini
-
mum
of
11
feet
per
second
.
This
represents
the
average
speed
of the
movable
arcing
contact
over
1
”
of
travel
before
engaging
the
stationary
contact
.
The
opening
speed
of
the
arcing
contact
should
be
a
minimum
of
15
feet
per
second
.
This
represents
the
average
speed
over
3
"
of
travel
after
contact
parting
.
Control
Power
Check
i
:
'
S
-
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
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
alternating
or
direct
cur
-
rent
source
.
The
operating
ranges
for the
closing
and
tripping
voltages
are
given
on
the breaker
nameplate
.
The
following
ranges
are
standard
;
Nominal
Voltage
Closing
Range
Tripping
Range
Min
.
Min
.
Max
.
Max
.
\
:
'
(
M
48
v
d
-
c
llOv
d
-
c
125
v
d
-
c
220
v
d
-
c
250
v
d
-
e
115
v
a
-
c
230
v
a
-
c
34
28
60
v
d
-
c
125
v
d
-
c
—
l
40
v
d
—
c
250
v
d
-
c
2
§
Ov
d
-
c
125
v
a
-
c
250
v
a
-
c
50
v
d
-
c
115
v
d
-
c
130
v
d
-
e
230
v
d
-
c
2
§
0
v
d
-
c
125
v
a
-
c
250
v
a
-
c
80
60
90
70
160
120
180
140
95
95
190
190
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
pow
-
er
and
line
drop
between
the
power
source
and
breaker
.
When
two
or more
breakers
operating
from the
same
control
power
source
are
required
to
close
simultaneously
,
the closed
circuit
voltage
at
the
closing
coil
or
motor
of each
breaker
must
fall
within
the
specified
limits
.
SR
r
/
Electrical
closing
or
opening
is
accomplished
by
merely
"
energizing
the
closing
or
trip
coil
circuit
.
Control
switches
are
provided
for
this
purpose
on
the raetal
-
elad
unit
.
It
is
also
possible
to
trip
or
close
the breaker
manually
by
pressing
the
manual
trip
lever
(
ll
)
Fig
.
2
or
the
manual
close
button
(
7
)
.
4
w
11
Courtesy of NationalSwitchgear.com