Siemens GMI Series

Interrupter
/
Operator
Description
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Figure
28
b
:
AC
and
DC
Control
Power
(
Reclosing
)
.
Figure
28
a
:
DC
Control
Power
(
Non
-
Reclosing
)
.
Symbols
52
/
a
*
Aux
.
Switch
,
Open
when
Brk
.
is
Open
52
/
b
•
Aux
.
Switch
,
Closed
when
Brk
,
is
Open
52
Y
•
Anti
-
Pump
Relay
52
T
•
Opening
Solenoid
(
Trip
)
52
SRC
*
Spring
Release
Solenoid
(
Close
)
52
X
•
Reclosing
Control
Relay
4
88
•
Spring
Charging
Motor
SD
•
Secondary
Disconnect
CS
/
C
•
Control
Switch
Close
T
CS
/
T
•
Control
Switch
Trip
R
•
Red
Indicating
Lamp
G
•
Green
Indicating
Lamp
W
‘
White
Indicating
Lamp
,
Notes
on
Schematic
Arrangement
Schematics
are
shown
with
:
1
.
Closing
Springs
Discharged
2
.
Breaker
Open
3
.
Breaker
Located
in
Test
,
Con
-
nect
or
Withdrawn
Position
Note
that
,
in
this
condition
,
the
trip
latch
is
free
to
reset
,
but
is
tempo
-
rarily
blocked
until
the
closing
springs
are
partially
recharged
.
Prior
to
full
spring
charge
,
LS
3
(
NO
)
closes
,
and
LS
3
(
NC
)
opens
.
LS
1
•
Motor
Cutoff
Switch
LS
2
•
Spring
Charged
Switch
LS
3
•
Checks
Trip
Latch
Reset
and
Blocks
Electric
Close
while
Racking
"
Test
"
to
“
Connect
"
LS
4
•
Spring
Dump
Switch
Typical
Remote
Devices
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SRC
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LSI
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DCL
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0
NC
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6
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4
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6
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FUSE
Figure
28
c
:
AC
Control
Power
(
with
Capacitor
Trip
)
.
18
Courtesy of NationalSwitchgear.com