ABB TMC User manual

Ann
APV
IB
7.1
.
1.7
-
10
Issue
A
INSTRUCTIONS
Ground
Fault
Monitor
TYPE
TMC
Monitor
without
Sensor
Test
Feature
TYPE
TMS
Monitor
with
Sensor
Test
Feature
For
Use
with
Type
GRC
Ground
Relay
GRP
,
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ABB
POWER
T
&
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COMPANY
INC
.
ALLENTOWN
,
PENNSYLVANIA
,
USA
Courtesy of NationalSwitchgear.com

16
7
.
M
.
7
-
10
PAGE
2
GROUND
FAULT
MONITOR
TABLE
OF
CONTENTS
Page
2
Page
2
Page
3
Page
k
Page
6
Page
11
Int
roduction
Precautions
Placing
Monitor
into
Service
Application
Data
Operation
Testing
INTRODUCTION
These
instructions
contain
the
information
required
to
properly
install
,
operate
,
and
test
the
Ground
-
Shield
ground
fault
test
and
monitor
panel
,
Types
TMC
and
TMS
semi
-
flush
and
surface
mounted
.
The
TMC
and
TMS
monitors
are
optional
accessories
for
use
with
the
Type
GRC
surface
case
ground
fault
relays
to
provide
operation
indicators
and
testing
features
.
Standard
features
include
:
Flush
mounting
case
.
Memory
type
operation
target
.
Lamp
,
to
indicate
availability
of
control
power
.
Relay
testing
with
or
without
tripping
of
disconnect
means
.
Sensor
testing
with
or
without
tripping
of
disconnect
means
(
Type
TMS
only
)
.
a
.
b
.
c
.
d
.
e
.
Optional
features
:
Auxiliary
contact
output
for
tripping
or
alarm
,
or
to
prevent
reclosing
of
circuit
b
reakers
.
a
.
See
Instruction
Book
IB
7.1
.
1.7
-
5
for
information
covering
the
Type
GRC
ground
relay
and
Type
GS
ground
sensors
.
The
Type
TMS
monitor
can
be
used
only
with
those
ground
sensors
that
include
a
test
winding
(
Terminal
nTn
)
.
Earlier
versions
of
the
TMC
Monitor
,
catalog
number
202
T
3010
and
202
T
321
^
(
120
VAC
/
125
VDC
dual
-
rating
)
have
slightly
different
connections
than
the
units
shown
in
this
instruction
book
.
See
"
MAINTENANCE
"
on
Page
11
or
refer
to
IB
7
*
1
*
1.7
-
&
.
See
Instruction
Book
IB
7
*
1.1
.
7
-
9
for
recommendations
for
Field
Testing
of
Ground
Fault
Systems
.
PRECAUTIONS
The
following
precautions
should
be
taken
when
applying
this
equipment
:
Incorrect
wiring
may
result
in
damage
,
gram
for
the
particular
unit
before
the
unit
is
energized
.
Be
sure
wiring
agrees
with
the
connection
dia
-
1
.
If
a
control
wiring
Do
not
apply
high
voltage
tests
to
solid
-
state
relays
or
monitors
,
insulation
test
is
required
,
bond
all
terminals
together
before
applying
test
voltage
.
2
.
I
f
a
monitor
Follow
test
instructions
to
verify
that
unit
is
in
proper
working
order
,
is
found
to
be
defective
,
we
suggest
that
it
be
returned
to
the
factory
for
repair
.
Immediate
replacement
can
be
made
available
from
the
factory
;
identify
by
catalog
num
-
We
suggest
that
a
complete
spare
unit
be
ordered
as
a
replacement
,
and
the
inop
-
erative
unit
be
repaired
and
retained
as
a
spare
.
entails
working
with
energized
equipment
,
caution
should
be
taken
to
avoid
personal
shock
.
3
*
ber
.
CAUTION
:
Since
t
roub
1
eshooting
Only
competent
technicians
familiar
with
good
safety
practices
should
service
these
devices
.
4
.
Do
not
hold
the
TEST
SWITCH
in
the
test
position
for
more
than
2
seconds
.
Courtesy of NationalSwitchgear.com

IB
7.1
.
1.7
-
10
PAGE
3
GROUND
FAULT
MONITOR
PLACING
THE
MONITOR
INTO
SERVICE
RECEIVING
,
HANDLING
,
STORAGE
1
.
Upon
receipt
of
the
unit
(
when
not
included
as
part
of
a
switchboard
)
examine
for
ship
-
ping
damage
.
nearest
BBC
Brown
Boveri
Inc
.
Sales
Office
,
damage
.
Keep
reasonably
clean
and
dry
.
the
operation
indicator
(
target
)
display
showing
orange
.
If
damage
or
loss
is
evident
,
file
a
claim
at
once
and
promptly
notify
the
Use
normal
care
in
handling
to
avoid
mechanical
The
ground
fault
monitor
is
normally
shipped
with
2
.
INSTALLATION
Mounting
The
panel
drilling
and
cutout
information
is
given
in
Figure
1
.
A
rectangular
panel
cutout
and
(
A
)
mounting
holes
are
required
.
The
outline
of
the
Type
TMC
is
shown
in
Figure
2
A
,
and
the
Type
TMS
is
shown
in
Figure
2
B
.
The
monitor
is
completely
enclosed
.
The
upper
part
of
the
front
plate
provides
space
for
user
’
s
identification
markings
of
associated
circuits
or
disconnect
means
.
If
stencil
-
ling
is
desired
,
remove
the
switch
guards
and
(
4
)
screws
(
3
inches
apart
)
to
detach
the
front
plate
.
Connections
Use
only
copper
wire
when
making
connections
.
Special
care
must
be
taken
to
connect
control
power
of
proper
voltage
and
polarity
.
See
monitor
nameplate
for
voltage
rating
.
Typical
external
connection
diagrams
of
TMC
and
TMS
monitors
and
GRC
relays
are
shown
in
Figures
3
"
6
.
AM
monitor
leads
connected
to
the
ground
fault
relay
should
be
routed
to
-
gether
.
See
Application
Data
section
for
control
and
test
power
requirements
.
Remove
the
jumper
between
relay
terminals
4
and
5
of
the
GRC
relay
when
the
is
wired
in
.
monitor
NOTE
:
IF
THE
MONITOR
IS
DISCONNECTED
OR
REMOVED
FROM
THE
CIRCUIT
FOR
ANY
REASON
,
YOU
MUST
REINSTALL
A
JUMPER
BETWEEN
TERMINALS
4
AND
5
ON
THE
GRC
RELAY
(
JUMPER
COMPLETES
TRIPPING
CIRCUIT
)
.
3
.
CONTROLS
AND
INDICATORS
The
Type
TMC
or
TMS
monitor
does
not
contain
adjustments
which
require
field
settings
.
The
following
controls
and
indicators
are
provided
:
Indicates
presence
of
control
power
.
CONTROL
POWER
LIGHT
NO
-
TRIP
SWITCH
-
Holding
the
spring
-
return
toggle
in
the
up
position
temporarily
disconnects
the
trip
coil
(
and
auxiliary
output
relay
if
provided
)
.
TEST
SWITCH
-
For
Type
TMC
,
tests
relay
with
or
without
tripping
of
circuit
breaker
.
Type
TMS
,
tests
sensor
and
relay
with
or
without
tripping
circuit
breaker
.
For
GROUND
FAULT
TARGET
-
Orange
target
indicates
relay
operation
under
ground
fault
or
test
conditions
.
Indication
is
retained
even
if
control
power
is
lost
after
operation
.
RESET
PUSHBUTTON
-
Resets
target
to
black
(
and
resets
auxiliary
output
relay
if
provided
)
.
4
.
INITIAL
CHECK
After
wiring
is
completed
and
checked
,
apply
control
power
and
note
if
lamp
is
lit
.
Then
attempt
to
reset
the
operation
indicator
.
If
the
indicator
cannot
be
reset
,
recheck
connections
,
voltage
and
polarity
.
Do
not
attempt
any
other
tests
until
wiring
errors
are
corrected
.
Courtesy of NationalSwitchgear.com

IB
7.1
.
1
-
7
-
10
PAGE
A
GROUND
FAULT
MONITOR
APPLICATION
DATA
The
Types
TMC
or
TMS
Test
and
Monitor
Panel
is
an
optional
,
flush
mounted
unit
for
use
with
the
standard
GRC
Ground
Fault
Relay
System
.
Standard
Features
include
:
1
)
A
CONTROL
POWER
LAMP
to
indicate
the
presence
of
control
power
to
the
relay
system
.
2
)
A
ground
fault
OPERATION
IN
-
DICATOR
which
maintains
indication
even
on
loss
of
control
power
.
3
)
A
TEST
SWITCH
for
perform
-
ing
an
operational
test
on
the
GRC
ground
relay
,
A
)
A
NO
-
TRIP
switch
to
prevent
the
disconnect
from
tripping
when
the
operational
test
is
performed
,
if
continuity
of
service
must
be
maintained
.
5
)
A
RESET
pushbutton
to
reset
the
target
from
orange
to
black
.
An
auxiliary
output
relay
can
be
provided
as
an
option
for
remote
alarm
or
other
purposes
.
Its
contacts
are
reset
after
a
relay
operation
by
the
RESET
pushbutton
.
TYPE
TMC
MONITOR
This
monitor
allows
testing
of
the
GRC
relay
and
the
disconnect
device
operation
.
If
the
sensor
includes
the
MT
"
Any
of
terminal
,
the
Type
GS
Ground
Sensors
may
be
used
in
this
system
,
it
must
be
jumpered
to
the
SI
terminal
.
TYPE
TMS
MONITOR
The
Type
TMS
monitor
is
provided
with
test
circuits
and
current
limiting
resistors
to
inject
a
test
current
into
the
sensor
test
winding
(
3
“
5
amperes
maximum
)
.
Thus
the
test
power
transform
-
er
should
be
sized
accordingly
to
supply
the
test
current
at
120
VAC
for
1
-
2
seconds
.
A
minimum
rating
of
250
VA
is
recommended
.
Note
that
the
monitor
test
and
control
circuits
are
isolated
,
hence
could
be
connected
to
different
sources
.
However
,
the
monitor
terminal
2
should
be
connect
-
ed
to
the
ungrounded
end
of
the
120
VAC
test
source
,
and
terminal
S
2
of
the
sensor
must
be
wired
to
the
grounded
terminal
of
the
same
source
.
Also
,
the
optional
trip
or
alarm
contacts
are
iso
-
lated
and
could
be
connected
to
another
circuit
.
The
Type
TMS
monitor
is
designed
for
use
with
Type
GS
sensors
that
have
provisions
for
test
-
ing
(
terminal
T
)
.
The
test
circuit
requires
that
the
T
-
Sl
jumper
supplied
on
the
sensor
be
removed
.
See
the
GRC
relay
instruction
book
IB
7.1
.
1.7
”
5
for
a
list
of
available
sensors
.
CONTROL
SOURCE
CONNECTIONS
The
primary
of
a
control
transformer
,
if
provided
and
supplied
from
the
power
circuit
,
must
be
connected
line
to
line
.
When
control
power
is
taken
from
the
power
circuit
ahead
of
the
main
disconnecting
means
or
from
a
separate
source
,
the
control
circuit
conductors
should
have
overcurrent
protection
,
trol
circuit
overcurrent
protective
devices
should
have
an
interrupting
rating
adequate
for
the
short
-
circuit
current
available
,
should
be
kept
as
short
as
possible
.
Con
-
Conductors
ahead
of
the
control
circuit
overcurrent
protection
RATINGS
Major
ratings
appear
on
the
front
panel
or
labels
.
See
nameplate
for
nominal
control
voltage
.
Main
Control
Voltage
:
Available
control
voltage
models
:
120
VAC
125
VDC
A
8
VDC
2
A
/
32
VDC
Monitor
must
have
the
same
control
voltage
rating
as
the
associated
GRC
relay
.
Maximum
voltage
is
nominal
plus
10
%
.
Minimum
operating
control
voltage
:
55
%
of
nominal
for
AC
monitors
,
80
%
of
nominal
for
DC
monitors
.
Negligible
on
stand
-
by
;
15
-
50
ma
on
operation
of
auxiliary
relay
.
Control
Source
Drain
:
Output
Contacts
at
125
VDC
:
5
amps
RMS
continuous
1
amp
break
(
resistive
)
0.3
amp
break
(
inductive
)
30
amps
RMS
for
0.33
seconds
12.5
amps
RMS
for
0.25
seconds
7
-
5
amps
RMS
for
1
second
Courtesy of NationalSwitchgear.com

IB
7.1
.
1.7
-
10
PAGE
5
GROUND
FAULT
MONITOR
SENSOR
TEST
SOURCE
(
Type
TMS
Only
)
:
120
VAC
(
+
10
,
-
20
%
)
Sensor
Test
Drain
:
The
test
current
provided
by
the
TMS
Monitor
must
be
related
to
the
pick
-
up
current
range
of
the
GRC
Ground
Relay
used
in
the
application
.
Resistors
in
the
monitor
are
sized
to
provide
sufficient
current
to
operate
the
particular
GRC
Relay
for
all
pickup
settings
.
See
Table
1
for
a
listing
of
TMS
Monitors
.
Table
1
also
indicates
the
range
of
current
drain
to
be
expected
for
each
model
.
The
control
transformer
must
provide
this
current
.
The
actual
value
of
current
drawn
will
depend
on
the
particular
sensor
being
used
in
the
system
and
the
line
voltage
.
TABLE
1
:
SUMMARY
OF
COMMON
UNITS
Monitor
Catalog
Number
Sensor
Test
Drain
Auxi
1
iary
Contact
For
Use
Wi
th
GRC
Range
Monitor
Type
202
T
30
x
0
202
T
30
x
4
Ai
1
TMC
No
Yes
202
T
58
x
0
202
T
58
X
4
24
A
0
.
1
-
0.2
A
TMS
2
No
Yes
0.2
-
0.4
A
60
A
202
T
57
x
0
202
T
57
x
4
No
5
Yes
202
T
56
X
0
202
T
56
X
4
20
-
240
A
0.7
-
1
A
No
Yes
202
T
55
x
0
202
T
55
x
4
3
-
5
A
100
-
1200
A
No
Yes
The
"
x
"
in
the
above
catalog
numbers
MUST
be
replaced
with
the
proper
digit
in
-
These
are
:
IMPORTANT
:
dicating
the
main
control
voltage
value
to
completely
specify
the
unit
.
4
"
for
125
VDC
"
0
“
for
24
/
32
VDC
“
6
"
for
120
VAC
3
“
for
48
VDC
1 1
1 1
Test
current
drain
shown
exists
For
the
Type
TMS
,
the
sensor
test
voltage
source
is
always
120
VAC
.
only
during
operation
of
the
Sensor
Test
(
should
be
1
-
2
seconds
in
duration
)
.
4.00
*
*
3.625
^
0.1875
0.625
1.812
1.812
i
^
(
)
4
.
I
Fig
.
Is
Panel
Cutout
for
FLUSH
MOUNTED
MONITOR
(
dimensions
in
inches
)
2.50
<
r
-
-
x
4.875
5.00
.
w
2.50
e
-
U
v O
y
'
/
t
(
4
)
0.1563
or
0.188
mounting
holes
0.0625
Courtesy of NationalSwitchgear.com

IB
7.1
.
1.7
-
10
PAGE
6
GROUND
FAULT
MONITOR
OPERATION
The
CONTROL
POWER
light
should
normally
be
lit
,
indicating
the
availability
of
control
power
.
If
it
is
off
,
control
power
fuses
or
wiring
should
be
checked
.
If
the control
power
transformer
is
on
the
load side
of
the circuit
protective
device
,
the
light
will
not
be
on
until
the
discon
-
nect
is
closed
.
Should
the
light
be
burned
out
it
is
easily
replaced
.
Upon
a
ground
fault
or
a
test
operation
,
the FAULT
indicator
will
change
state to
orange
,
and
the
optional
auxiliary
contact
(
if
provided
)
will
pick
up
and
seal
in
.
The
GRC
Ground
Fault
Relay
'
s
thyristor
(
SCR
)
output
is restored
to
functional
status
upon
the
opening
of
the
circuit
protective
device
auxiliary
contact
(
52
a
)
and does
not
require
manual
reset
.
The
FAULT
target
is
a
memory
type
and
will
retain
its indication
even
if
the
control
power
transformer
is
on
the
load side
of
the
disconnect
,
thus
resulting
in
loss
of
control
power upon
operation
.
The
RESET
pushbutton
resets
the
target
and the
auxiliary
contact
(
if
provided
)
.
Reclosing
on
a
fault
may
increase
arcing damage
;
therefore
,
it
is
recommended
that
a
ground
fault
condition be
located and corrected
before
the
disconnect
is
reclosed
.
The
types
TMC
and
TMS
Monitors
allow
GRC
Relay testing
with
or
without
tripping
the
circuit
disconnect device
.
For
the
Type
TMS
,
actuation
of
the
TEST
switch
disconnects
one
of
several
sensor
windings
from
a
parallel
arrangement
and
connects
it
to
a
120
VAC
source
through
resistors
which
set
the
test current
level
.
The
test
sequence
,
which
is
also
printed
on
the
front
panel
of
the monitor
,
is
:
1 1
FOR
"
NO
-
TRIP
TEST
FOR
"
TRIP
TEST
1 1
Operate
NO
-
TRIP
switch
UP
and
HOLD
.
1
.
1
.
Operate
TEST
switch
UP
for
1
-
2
seconds maximum
,
RELEASE
.
Operate
TEST
switch
UP
for
1
-
2
seconds
maximum
.
2
.
2
.
Press
target
RESET
button
.
RELEASE
.
RELEASE
NO
-
TRIP
switch
.
3
.
b
.
Press
RESET
button
.
If
the
relay
or
monitor
oper
-
Do
not
hold
the
TEST
switch
on
for
more
than
2
seconds
.
CAUTION
:
ation is
improper
,
recheck
wiring
,
voltages
,
and interconnected devices
before
resuming
tests
.
NOTE
:
Control
power
must
be
present
to reset
the
target
.
DOUBLE
ENDED
APPLICATIONS
To
verify
the
operation
of
the
GRC
Relay
'
s
"
No
-
Trip
"
Interlock
used
on
the main breakers
in
double
-
ended
applications
,
the
following
procedure
may
be used
:
close the
interlocking
device
or
the tie
circuit
breaker
,
or
temporarily
short
circuit
GRC
Relay
terminals
9
and
10
.
Perform
the
TRIP
TEST
.
The
relay
should
NOT
trip
.
If
terminals
9
and
10
were
shorted
to
run
the
test
,
BE
SURE
to
remove
the
short
at
the
end
of
the
tests
.
Courtesy of NationalSwitchgear.com

I B
7.1
.
1.7
-
1 0
PAGE
7
GROUND
FAULT
MONITOR
3
4
»
(
4
)
DIA
.
MTG
.
HOLES
6
-
32
HARDWARE
16
5
4
*
16
<
>
TB
2
7
8
9
10
II
12
3
5
=
O
8
7
3
i
16
]
AI
8
4
=
8
12
3
4
5
6
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.
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T
TBI
fo
i
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4
32
I
21
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I
3
k
4
k
2
2
32
REAR
VIEW
SIDE
VIEW
FRONT
VIEW
FIGURE
2
A
:
TMC
MONITOR
OUTLINE
Al
1
Dimensions
In
Inches
HEAT
SINK
*
3
6
-
32
HAROWARE
<
4
)
(
^
DIA
.
MTG
.
HOLES
5
4
16
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}
ib
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(
I
F
*
s
*
F
r
0
TB
2
7
8
9
1 0
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M
2
I
3
]
o
8
7
3
i
16
o
1
7
4
i
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8
4
k
a
1 2
3
4
5
6
JL
c
TBI
"
,
«
1
.
1
13
i
:
-
*
4
l
<
-
32
I
31
3
i
«
•
—
2
~
2
32
4
«
REAR
VIEW
SIDE
VIEW
FRONT
VIEW
FIGURE
2
B
:
TMS
MONITOR
OUTLINE
Courtesy of NationalSwitchgear.com

IB
7.1
.
1.7
-
10
PAGE
8
GROUND
FAULT
MONITOR
GRC
RELAY
-
TMC
MONITOR
INTERCONNECTION
DIAGRAMS
Notes
for
Figures
3
and
4
:
If
terminal
T
is
provided
on
the
type
GS
sensor
,
jumper
J
(
T
-
$
1
)
is
required
.
Wiring
of
earlier
versions
of
the
TMC
,
catalog
numbers
302
T
3010
and
302
T
3214
,
is
slightly
different
than
shown
below
.
1
.
2
.
See
note
under
MAINTENANCE
on
Page
11
.
ItO
VAC
1
DOUBLE
-
CM
)
*
*
"
-
1
I
,
—
li
-
ne
CD
sue
I
I
I
A
IK
.
I
&
1
9
n
l
7
TJjg
,
In
BftC
C
K
r
~
n
N
z
1
.
.
K
I
?
'
9
'
V
I
THY
I
52
110
4
T
~
•
t
No
-
nr
;
'
J
"
i
(
PIE
i
S
2
TEST
tv
,
*
*
I
i
x
-
’
Is
SENSOR
9
mart
-
a
s
6
PS
112
I
J
?
—
—
-
O
—
NO
-
TRIP
SW
4
t
-
-
Ai
<
£
=
0
—
0
I
I
2
OPTIONAL
I
-
L
MB
-
L
S
2
A
A
S
C
k
LOAD
i
*
FIGURE
3
:
GRC
/
TMC
with
120
VAC
Control
Power
I
I
TC
)
52
B
0
RD
HO
DC
CONTROL
PWR
.
T
OOUBLE
—
ENO
II
SUB
TIE
CB
A
-
o
9
V
-
91
—
L
.
CS
T
B
5
-
6
1
l
7
TMC
6
RC
I
,
.
C
=
K
O
N
T
.
.
K
I
)
)
)
Q
'
Q
'
O
'
0
=
K
THY
I
52
110
4
r
~
T
J
-
<
NO
-
TRIP
;
:
„
’
'
sw
I
SI
(
pm
i
K
52
TEST
t
\
>
s
*
I
i
SENSOR
I
e
4
,
o
<
?
RESET
e
6
i
12
I
PS
NO
-
TRIP
$
W
4
*
-
<
2
=
0
—
0
I
2
OPTIONAL
-
L
52
A
-
L
52
B
A
B
C
N
LOAD
FIGURE
4
:
GRC
/
TMC
wi
th
DC
Control
Power
i
•
0
I
I
TC
)
52
B
TC
)
S
2
A
<
-
)
Courtesy of NationalSwitchgear.com

120
VAC
52
Q
DOUBLE
-
END
11
-
TIE
CB
SUB
i
I
I
A
l
9
9
|
3
JU
CS
.
V
B
1
T
5
~
6
1
6
RC
C
7
S
=
S
=
K
r
*
?
1
N
i
1
I
K
I
o
I
i
i
I
30
O
)
)
)
Q
'
O
'
O
'
CRT
0
=
=
K
THY
I
I
30
52
m
REMOVE
T
-
SI
LINK
>
I
4
110
-
<
r
-
1
250
VA
T
OR
-
I
N
0
-
TR
1
P
]
l
-
H
SI
2
CD
I
LARGER
(
y
c
-
o
-
SENSOR
302
L
to
30
K
o
2
c
:
^
5
C
^
A
.
0
T
\
>
sw
2
o
z
TEST
I
z
o
I
H
T
|
le
>
o
c
:
30
ft
V
OR
R
|
SET
jq
z
8
6
302
T
2
I
2
l
J
?
—
-
O
NO
-
TRIP
SW
o
m
z
30
4
o
0
?
r
?
:
O
o
z
z
30
I
l
m
o
OPTIONAL
1
o
z
-
L
52
B
-
L
52
A
A B
C
N
LOAD
o
0
0
>
a
30
1
>
2
t
/
>
TC
)
526
TCJ
52
A
#
GRD
GO
FIGURE
5
:
GRC
/
TMS
WITH
120
VAC
CONTROL
AND
120
VAC
TEST
POWER
-
o
—
>
•
cry
*
^
1
m
1
vo
©
Courtesy of NationalSwitchgear.com

120
VAC
TEST
PWR
.
{
+
)
DC
CONTROL
PWR
.
52
a
DOUBLE
-
END
II
—
TIE
CB
SUB
A
91
CS
9
B
"
I
T
5
ii
ir
i
6
RC
C
TMS
II
7
K
O
t
N
T
x
I
K
I
I
0
)
0
)
0
)
0
/
0
'
0
'
0
CPT
K
THY
I
I
52
lie
REMOVE
T
-
Sl
LINK
I
4
110
r
-
T
250
VA
-
1
NO
-
TRIP
i
>
I
T
-
SW
ill
OR
GC
SI
I
I
o
LARGER
(
¥
'
^
-
o
-
SENSOR
302
L
z
t
\
3
S
*
£
TEST
o
I
5
z
:
I
8
3
ft
<
9
OR
Ll
_
8
6
302
T
|
9
I
NO
-
TRIP
SW
jr
—
PB
o
-
O
z
3
4
o
M
-
0
cc
o
I
OPTIONAL
-
1
-
52
A
-
L
52
B
A
B
C
N
LOAD
a
a
I
(
rc
)
52
A
(
TC
)
52
B
(
-
)
o
#
GRD
i
r
»
»
•
o
FIGURE
6
:
GRC
/
TMS
WITH
DC
CONTROL POWER
AND
120
VAC
TEST
POWER
r
*
.
ui
o
00
<
—
a
.
Courtesy of NationalSwitchgear.com