ABB CIRCUIT SHIELD 437W Series User Manual

Reverse Power
Relay
IB
7.8
.
1.7
-
1
Page
3
2
.
INSTALLATION
Mounting
:
The
outline
dimensions
and
panel
drilling
and
cutout
information
is
given
in
Fig
.
1
.
Connections
:
Internal
Figures
3
and
4
.
connections
are
shown
in
Fig
.
2
.
Typical
external
connections
are
shown
in
These
relays
have metal
front
panels
which
are
connected
through
printed
circuit
board
runs
and
connector
wiring
to
a
terminal
at
the
rear
of the
relay
case
.
The
terminal is
marked
"
GM
.
In
all
applications
this terminal
should be
wired
to
ground
.
External
Shorting
Link
(
237
P
/
237
F
series
only
)
:
required
from
terminal
16
to
terminal
G
.
section
on
Testing
,
for
purpose
of
this
link
,
series
437
series units
.
a
shorting
1
ink
or
jumper
is
See
paragraph
on
High
Potential
Tests
,
This
connection
is
not
required
on
For
units with
dc control
power
rating
,
proper
polarity
must
be observed
when
connecting
to
terminals
7
and
8
.
For
units
rated
for
ac
control
power
,
an
internal
isolation
transformer
is
used
,
so
polarity
need
not
be
observed
.
Control
Voltage
Selector
Plug
:
Apply
only
the
rated
control
voltage
marked
on
the front
panel
of
the
relay
.
For
relays
with
dual
-
rated
control
voltage
,
the control
voltage
selector
plug
located
on
the
lower
circuit
board
must
be
placed
in
the
correct
position
for the
system
control
voltage
.
For
units
rated for
use
on
120
vac
control
(
if
the
factory
has
not
used
a
soldered
jumper
)
the
plug
must
be
placed
in
the
24
/
48
vdc
position
:
a
transformer
-
rectifier circuit
on
the
upper
board
converts
the
120
vac
to
dc
,
the
value
depending
on
the model
.
For
relays
rated
for
use on
110
vdc
,
the
plug
should be
placed
in
the
125
vdc
position
if
not
specifically
marked
110
.
On
437
series units
rated
24
or
32
vdc
,
an
inverter
on
the
upper
circuit
board
converts
the
voltage
to
48
vdc
.
The
plug
on
the lower board should be
in
the
48
vdc
position
if
a
soldered
jumper
is
not
used
.
On
earlier versions
of
the
437
series
units
,
be
separated
to
gain
access
to
the
plug
.
the
upper
and
lower
circuit
boards
must
See
section
on
Testing
for
the
procedure
.
Phase
-
shift
Selector
Plug
:
An
internal
selector
plug
is
provided
to
set
the
relay
’
s
internal
phase
shift
to
30
°
lower
printed
See
connection
diagrams
for
notes
on
the
The
or
0
°
.
(
Not
provided
on
earlier
237
P
/
237
F
/
437
P
/
437
F
series
units with
circuit
boards
612289
-
003
,
-
002
,
-
001
.
)
proper
placement
of
this
plug
.
See
circuit
board
layouts
for
location
of
plug
,
upper
and lower
circuit
boards
will
have
to
be
separated
on some
models
to
inspect
or
position
this
link
.
Circuit
Board
Interconnection
Cable
used
to
be
sure
that
the
cable
connectors
are
properly
positioned
and seated
at
both
ends
.
(
437
W
/
437
G
series
only
)
:
connect
the
upper
and
lower
printed
circuit
boards
on
these
units
.
a
3
conductor
cable
is
to
Inspect
3
.
SETTINGS
237
P
/
237
F
/
437
P
/
437
F
Series
Units
(
Current
Directional
Types
)
Pickup
:
A
pickup
dial
is
provided
so
that
the
sensitivity
of the
relay
to
power
reversal
can
be
adjusted
to
fit
the
application
.
Pickup
is
continuously
adjustable
from
approxi
-
mately
0.025
amperes
to
0.7
amperes
.
Time
Delay
:
The
Type
32
R
is
provided
with
a
time
delay
on
pickup
.
The
delay
on
standard
units
is
continuously adjustable
from
1
to
30
seconds
(
definite time characteristic
)
.
time
delay
should be
set
to
the
time
needed
to
prevent
nuisance
operations
due
to
temporary
self
-
correcting
power
reversals
.
Relays
with
non
-
standard
delay
ranges
will
be
marked
appropriately
.
The
437
W
/
437
G
Series Units
(
Power
Measurement
Types
)
Pickup
:
A
continuously
adjustable
pickup
dial is
provided
to set
the
sensitivity
of
the
relay
to
power
flow
.
is
non
-
linear
to
provide
greater
resolution
at
the
more
sensitive
settings
,
and
can
be
set
by
test
if
desired
.
The
approximate
range
will
be
marked
on
the front
panel
.
The
dial
Courtesy of NationalSwitchgear.com

ABB CIRCUIT SHIELD 437W Series Specifications

General

Brand	ABB
Model	CIRCUIT SHIELD 437W Series
Category	Relays
Language	English