ABB CIRCUIT SHIELD 437W Series User manual

ABB
MP
IB
7.8
.
1.7
-
1
Issue
C
INSTRUCTIONS
Reverse
Power
Relay
©
CIRCUIT
$
SHIELD
TYPE
32
R
Catalog
Series
437
W
/
437
G
Drawout
Test
Case
Catalog
Series
437
P
/
437
F
Drawout
Test
Case
Catalog
Series
237
P
/
237
F
Standard
Case
ajygjJgJT
^
irTowER
R
£
t A
>
.
,
tfRCUIT
15
TARGET
TRIP
0.5
1
'
TEST
P
i
1
m
*
0
E
‘
.
A
'
'
S
£
'
ria
P
,
CKUP
AMP
OCEINITt
CURVE
;
CONTROL
MEASURE
,
‘
4
/
M
<
fX
WOir
.
M
«
t
TY
PE
•
S
.
i
/
PM
'
5
*
7
g
.
lT
'
I
CAT
I
B
Courtesy of NationalSwitchgear.com

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
2
TABLE
OF
CONTENTS
Introduction
Precautions
Placing
the
Relay
into
Service
Application
Data
Testing
Obsolete
Units
Page
2
Page
2
Page
3
Page
4
Page
12
Page
15
INTRODUCTION
These
instructions
contain
the
information
required
to
properly
install
,
operate
,
and
test
the
ABB
Circuit
-
Shield
Type
32
R
Reverse
Power
Relay
,
catalog
series
237
P
,
437
P
,
237
F
,
437
F
,
437
W
,
and
437
G
.
The
relay
is
housed
in
a
case
suitable
for
conventional
semiflush
panel
mounting
.
All
connections
to
the
relay
are
made
at
the
rear
of
the
case
and
are
clearly
numbered
.
The
437
series
relays
provide
totally
drawout
construction
with
integral
test
facilities
.
Current
transformer
shorting
is
accomplished
by
a
direct
-
acting
spring
and
blade
assembly
upon
removal
of
the
relay
from
its
case
.
Sequenced
disconnects
prevent
nuisance
tripping
during
withdrawal
or
insertion
of
the
relay
if
the
normally
closed
contact
is
used
in
the
application
.
The
237
series
relays
are
of
partial
drawout
construction
,
with
the
input
transformers
remaining
in
the
case
upon
withdrawal
of
the
lower
circuit
board
.
Most
settings
are
made
on
the
front
panel
of
the
relay
,
behind
a
removable
clear
plastic
cover
.
The
target
is
reset
by
means
of
a
pushbutton
extending
through
the
cover
.
PRECAUTIONS
The
following
precautions
should
be
taken
when
applying
these
relays
.
Be
sure
wiring
agrees
with
the
connection
Incorrect
wiring
may
result
in
damage
,
diagram
for
the
particular
relay
before
energizing
.
1
.
Apply
only
the
rated
voltage
marked
on
the
relay
front
panel
.
For
units
rated
for
2
.
use
with
dc
control
power
,
the
proper
polarity
must
be
observed
.
For
units
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
.
boards
must
be
separated
to
gain
access
to
the
plug
.
3
.
On
earlier
437
series
units
the
upper
and
lower
circuit
4
.
For
catalog
series
237
units
,
16
to
terminal
G
.
a
shorting
link
or
jumper
is
required
from
terminal
This
is
not
used
on
series
437
units
.
Do
not
use
excessive
force
.
Drawout
elements
should
insert
in
the
case
smoothly
.
5
.
6
.
High
voltage
insulation
tests
are
not
recommended
.
A
high
-
pot
test
was
performed
on
the
relay
at
the
factory
.
See
section
on
Testing
for
additional
information
.
Follow
test
instructions
to
verify
that
the
relay
is
in
proper
working
order
.
7
.
Caution
:
since
troubleshooting
entails
working
with
energized
equipment
,
care
should
be
taken
to
avoid
personal
shock
.
Only
competant
technicians
familiar
with
good
safety
practices
should
service
these
devices
.
PLACING
THE
RELAY
INTO
SERVICE
1
.
RECEIVING
.
HANDLING
.
STORAGE
Upon
receipt
of
the
relay
(
when
not
included
as
part
of
a
switchboard
)
examine
for
shipping
damage
.
notify
your
ABB
representative
or
the
factory
.
Use
normal
care
in
handling
to
avoid
mechanical
damage
.
Keep
clean
and
dry
.
If
damage
or
loss
is
evident
,
file
a
claim
at
once
and
promptly
Courtesy of NationalSwitchgear.com

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

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
4
437
W
/
437
G
Settings
(
continued
)
Time
Delay
:
The
437
W
/
437
G
series
is
provided
with
a
time
delay
on
pickup
.
An
internal
link
must
be
positioned
to set
the
timing
function
for
a
definite
-
time
characteristic
or
for
an
inverse
characteristic
.
The
definite
delay
on
standard
units is
continuously adjus
-
The
inverse
characteristic
curve
is
shown
in
Figure
6
.
table
from
1
to
30
seconds
.
Relays
with
non
-
standard
delays
will
be marked
appropriately
.
The
time
delay
should
be
set to
the
time
needed
to
prevent
nuisance
operations
due
to
temporary
self
-
correcting
power
reversals
.
A
setting
of
10
-
15
seconds
is
typical
.
4
.
INDICATORS
LED
Pickup
Indicator
:
A
1
ight
-
emitting
-
diode
pickup
indicator
is
provided
to
assist
in
testing
and
to
provide operating
personnel
with
information
on
the
status
of the
relay
.
This
can
be
especially
helpful
when
placing
the
relay
into
service
and
making
initial
settings
.
The
relay
’
s
timer
will
be
timing
when
this indicator
lights
,
and
if
the
condition
persists
,
the
relay
will
operate
.
If
the
indicator
is
flashing
on
and
off
,
system
conditions
are near
the
relay
’
s
operating
threshold
,
however
,
the
timer
is
reset
whenever the
led
goes
out
,
and
a
relay
operation
will
not
occur
.
Target
Indicator
:
When the
relay
’
s
output
contacts
transfer
to
trip
the
breaker
,
the
target
indicator
is
signalled
electronically
to set
and
display
orange
.
The
target
retains
indication
even
on
loss
of control
voltage
,
and
must
be
reset
manually
.
In
order
to reset
the
target
,
control
power
must
be
present
and
the
inputs
to
the
relay
below
pickup
.
APPLICATION
DATA
The
most
common
application
for
ABB
Type
32
R
relays
is
the
reverse
power
(
anti
-
motoring
)
protection
of
a
generator
and
its
prime
-
mover
.
The
maginitude
of
power
required
to
motor
the
generator
varies
widely depending
on
the
type
of
prime
mover
(
diesel
,
gas
turbine
,
etc
.
)
These
relays
provide
wide
sensitivity
ranges
and
high
continuous
ratings
to
allow
full
use
of the
sensitivity
.
Only
one
single
-
phase
relay
is
required
in
this
application
,
as
the
reverse
power
will
be
essentially
equal
in
all
phases
.
A
relay
setting
of
20
-
50
%
of the
power
required
to motor
the
particular
machine
being
protected
is
suggested
,
override
temporary
self
-
correcting
power
synchronizing
,
should
be
set
.
A
time
delay
sufficient
to
reversals
,
such
as
occur
during
A
typical
setting
would be
15
seconds
.
Catalog
Series
237
P
/
237
F
/
437
P
/
437
F
:
Relays
in
this series
are
current
-
directional
relays
,
rather
than
true
power
measurement
types
.
The
operating
characteristic
is
shown
in
Figure
5
.
An
advantage
of
this
type
of
unit is
that
its
sensitivity
to current
magnitude
and
direction
does
not
change
with
the
magnitude
of
polarization
voltage
.
Although
the normal
polarization
voltage
to
the
relay
is
120
vac
,
the
relay
will
be
fully
polarized
at
voltages
down
below
10
volts
.
An
internal
phase
-
shift
circuit
provides
the
30
degree
shift
required
so
the
line
-
to
-
line
polarization
voltage
can
be
properly
compared
in
phase
to
the
line
current
.
(
If
the
phase
A
-
to
-
neutral
voltage
is
used
,
the
internal
phase
-
shift
link
should be
set
to
0
°
,
rather
than
30
°
.
)
For
unity
power
factor
conditions
,
the three
-
phase
kilowatts
to
cause
relay
operation
can
be
estimated
by
the
following
calculation
:
/
3
*
V
*
I
*
N
where
KW
V
=
system
line
to
line
voltage
in
kilovolts
.
I
=
relay
pickup
setting
in
amperes
.
CT
ratio
.
N
An
adjustable
definite
-
time
delay
characteristic
with
a
range
of
1
to
30
seconds
is
provided
on
standard
units
.
For
unusual
applications
,
special
time
ranges
including
instantaneous
operation
can
be
provided
.
Contact
the
factory
.
Reverse
VAR
Detection
:
If
this
model
is
connected
as
shown
in
Figure
4
,
and
set
-
up
with
an
internal
0
°
phase
-
shift
,
it
becomes
a
reverse var
detector
,
used
for loss
-
of
-
field
protection
in
installations
where the
cost
of
an
impedance
type
relay
,
such
as
the
ABB
Type
40
,
can
not
be
justified
,
application
.
Catalog
series
437
W
/
437
G
units
are now
preferred
for
this
Courtesy of NationalSwitchgear.com

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
5
Catalog
Series
437
W
/
437
G
:
Relays
of
this
series
are
"
true
"
directional
power
relays
in
that
they
measure
according
to
the
formula
:
power
P
V
*
I
*
cos
0
These
relays
may
be
used
for
the
anti
-
motoring
protection
of
generators
,
preferred
in
cases
where
significant
third
-
harmonic
current
may
be
present
,
relay
may
be
used
in
any
application
where
an
action
must
be
taken
at
a
set
power
level
;
for
example
,
on
a
tie
between
2
systems
where
power
flow
is
to
be
restricted
to
,
or
an
alarm
sounded
at
,
a
certain
level
in
one
direction
.
and
are
The
An
internal
link
is
provided
which
allows
the
relay
to
be
set
up
for
a
maximum
torque
angle
of
either
:
I
lag
V
by
0
degrees
;
or
,
I
lag
V
by
30
degrees
.
30
degree
position
,
the
1
ine
-
to
-
1
ine
input
voltage
is
internally
adjusted
by
a
1
/
s
/
J
factor
to
maintain
the
correct
scaling
for
single
-
phase
watts
.
When
set
in
the
Typical
connections
for
reverse
power
detection
are
shown
in
Figure
3
.
series
relays
may
be
reconnected
to
provide
reverse
VAR
detection
,
as
shown
in
Fig
4
.
437
W
/
437
G
437
W
/
437
G
series
relays
include
an
internal
link
to
select
timer
operation
to
have
a
definite
-
time
characteristic
,
or
to
have
an
inverse
timing
characteristic
.
The
definite
delay
is
adjustable
1
-
30
seconds
.
The
inverse
characteristic
is
shown
in
Figure
6
.
16
D
237
C
32
R
Std
.
Case
6.38
AB
Al
oE
o
5
O
4
03
T
T
l
212.8
1.22
6.53
6.68
31
165.9
C
t
174.8
0.63
PANEL
16
Jol
$
IH
$
13
$
12
On
X
4.88
J
OIG
Ois
124
q
T
2.44
Catalog
Series
237
P
/
237
F
62
H
x
SIOE
VIEW
FRONT
VIEW
(
4
)
OlA
.
HOLES
4
e
7
n
&
f
]
5
n
4
n
3
fi
£
fi
0
00
00
0
i
16
D
437
A
32
R
Test
Case
0
0
2.06
52.3
PANEL
CUTOUT
®
[
0
H
0
II
0
I
G
U
16
U
15
U
14
U
0
0
0
00
3.68
13
M
2
UU
10
9
93.5
£
1
OB
OS
OH
03
02
ol
i
LSi
2
_
06
*
6
,
-
7
52.3
DRAWOUT
TEST
CASE
STUD
NUMBERS
(
BACK
VIEW
)
G
J
7
°
4
i
3.19 3.19
PQL
.
m
6
IH
613
612
on
6
ID
4
q
31
81
3.31
NOTE
:
DIMENSIONS
ARE
SHOWN
AS
84
1
6.62
OlG
O
15
168.1
Figure
1
:
Relay
Outline
and
Panel
Drilling
Catalog
Series
437
P
/
437
F
JL
6
D
437
B
32
R
Test
Case
16
D
437
C
32
R
Test
Case
+
OB
o
5
O
4
03
T
T
(
SB
Al
oB
o
5
O
4
03
TT
O
1
c
c
r
°
r
-
H
-
ii
-
H
-
:
JT
°
jpi
ri
4
m
on
4
i
2
on
4
io
6
q
ri
o
oi
4
613
612
on
6
io
Oq
L
is
OlG
Ois
EXTERNAL
RESISTOR
SUPPLIED
WITH
RELAY
.
CONTACT
IS
-
1
H
CONVERTIBLE
.
CONTACT
li
-
lH
CONVERTIBLE
.
Catalog
Series
437
W
/
437
G
Catalog
Series
437
W
/
437
G
Figure
2
:
Internal
Connection
Diagrams
Courtesy of NationalSwitchgear.com

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
6
CHARACTERISTICS
OF
COMMON
UNITS
Internal
Connections
16
D
437
A
Current
Directional
Types
Type
32
R
Catalog
Numbers
Test
Case
Package
60
Hertz
50
Hertz
Max
.
Cont
.
Current
Max
.
Contin
.
Voltage
Max
.
Torque
Angle
Pickup
Range
Time
Delay
Control
Voltage
48
/
125
vdc
48
/
110
vdc
24
/
32
vdc
220
vdc
250
vdc
120
vac
437
P
4671
437
P
4601
437
P
4691
437
P
4621
437
P
4651
437
P
4661
437
F
4671
437
F
4601
437
F
4691
437
F
4621
437
F
4651
437
F
4661
I
lag
V
30
deg
.
1
-
30
sec
.
0.025
A
-
0.7
A
10
A
160
V
a
•
e
N
o
t
•
2
Notes
:
1
.
Series
237
P
/
237
F
have
the
same
electrical
characteristics
as
corresponding
437
P
/
437
F
shown
above
,
and
internal
connections
per
16
D
237
C
.
in
the
drawout
-
test
-
case
are
preferred
for
new
installations
due
to
their
improved
testing
features
.
437
series
units
2
.
These
units
now
include
an
internal
link
that
allows
the
maximum
torque
angle
to
be
set
for
either
30
°
or
0
°
,
I
lag
V
.
Earlier
versions
had
a
fixed
angle
of
30
°
(
last
digit
in
catalog
number
=
1
)
,
or
0
°
(
last
digit
in
catalog
number
=
2
)
.
Power
Directional
Types
Type
32
R
Catalog
Numbers
Test
Case
Package
60
Hertz
50
Hertz
Nominal
Rated
Voltage
*
*
Max
.
Cont
.
Current
Time
Delay
Pickup
Range
437
W
48
X
0
437
G
48
X
0
1
-
30
sec
.
10
A
5
-
60
Watts
120
v
437
W
78
X
0
437
G
78
X
0
1
-
30
sec
.
208
v
10
A
9
-
104
Watts
437
W
47
X
0
437
G
47
X
0
1
-
30
sec
.
10
A
13
-
150
Watts
120
V
437
W
77
x
0
437
G
77
X
0
1
-
30
sec
.
10
A
22
-
260
Watts
208
v
437
W
46
X
0
437
G
46
xO
1
-
30
sec
6
A
1
.
7
-
20
Watts
120
v
437
W
76
X
0
437
G
76
X
0
1
-
30
sec
6
A
3
-
35
Watts
208
v
VOLTAGE
DIGIT
SELECTION
CHART
(
437
W
or
437
G
series
units
)
:
each
of
the
catalog
numbers
listed
above
contains
an
"
x
”
for
the
control
voltage
designation
.
To
complete
the
catalog
number
you
must
replace
the
’
xf
with
the
proper
control
voltage
digit
shown
in
the
table
below
.
diagram
is
related
to
the
control
voltage
,
and
is
also
given
below
.
The
internal
connection
Internal
Connections
Code
Digit
for
>
,
x
”
Control
Voltage
24
vdc
32
vdc
48
/
125
vdc
48
/
110
vdc
220
vdc
250
vdc
120
vac
16
D
437
C
16
D
437
C
16
D
437
B
16
D
437
B
16
D
437
B
16
D
437
B
16
D
437
C
9
8
7
0
2
5
6
Other
Notes
_
for
437
W
/
437
G
Series
Units
:
with
#
Max
torque
angle
internally
adjustable
0
°
I
lag
V
,
or
30
°
I
lag
V
,
selector
link
.
Watts
are
1
ine
-
to
-
neutral
value
(
see
page
5
)
.
internal
selector
link
provided
for
inverse
delay
*
Definite
-
time
;
Figure
6
.
see
Courtesy of NationalSwitchgear.com

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
7
SPECIFICATIONS
:
INPUT
CIRCUIT
RATINGS
:
120
Vac
,
nominal
rating
:
208
Vac
,
nominal
rating
:
Potential
160
Vac
,
max
continuous
.
270
Vac
,
max
continuous
.
continuous
:
see
charts
page
6
.
390
amperes
,
1
second
(
10
amp
rated
units
)
200
amperes
,
1
second
(
6
amp
rated
units
)
Current
INPUT
CIRCUIT
BURDEN
:
Potential
Current
0.3
VA
at
120
vac
.
less
than
1
VA
at
5
Amperes
.
see
charts
on
page
6
.
SENSITIVITY
:
MAXIMUM
TORQUE
ANGLE
:
internal
link
to
set
30
°
or
0
°
IOP
lag
VPOL
.
standard
units
adjustable
1
to
30
seconds
,
definite
time
.
(
Consult
factory
if
special
range
required
.
)
OPERATING
TIME
:
437
W
/
437
G
series
units
also
include
link
to
select
inverse
delay
,
see
Figure
6
.
models
available
for
:
48
/
125
vdc
at
0.05
ampere
typ
.
standby
.
48
/
110
vdc
at
0.05
ampere
24
/
32
vdc
at
0.05
ampere
24
vdc
at
0.12
ampere
32
vdc
at
0.10
ampere
220
vdc
at
0.05
ampere
250
vdc
at
0.05
ampere
120
vac
at
0.05
ampere
CONTROL
POWER
:
(
437
P
/
437
F
)
(
437
W
/
437
G
)
(
437
W
/
437
G
)
allowable
variation
:
units
rated
110
vdc
and
above
:
+
12
%
/
-
20
%
.
units
rated
48
vdc
and
below
:
+
/
-
20
%
.
9250
vdc
OUTPUT
CIRCUIT
RATINGS
:
each
contact
91
25
vdc
9120
vac
Tripping
:
Continuous
:
Opening
Inductive
:
30
amps
30
amps
30
amps
5
5
5
0.3
0.1
2
TEMPERATURE
RANGE
:
-
20
deg
C
to
+
70
deg
C
.
Repeatability
over
temperature
range
:
237
P
/
237
F
/
437
P
/
437
F
operating
characteristic
:
+
/
-
5
degrees
.
pickup
current
at
1.0
PF
:
+
/
-
5
%
.
time
delay
:
greater
of
+
/
-
5
%
or
+
/
-
20
ms
.
437
W
/
437
G
pickup
at
1.0
PF
:
+
/
-
5
%
.
time
delay
:
+
/
-
8
%
.
2000
vac
rms
,
50
/
60
Hz
.
,
60
seconds
,
all
circuits
to
ground
.
DIELECTRIC
STRENGTH
:
Courtesy of NationalSwitchgear.com

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
8
TYPICAL
CONNECTIONS
FOR
THE
REVERSE
POWER
PROTECTION
OF
GENERATORS
FIGURE
3
:
a
TYPICAL
CONTROL
CONNECTIONS
237
P
/
237
F
b
+
12
I
C
X
32
R
Phase
Sequence
a
-
b
-
c
T
A
7
5
2
13
O
+
1
CONTROL
POWER
52
a
16
G
9
o
—
o
—
l
O
8
52
—
11
ri
+
TC
32
R
10
TYPICAL
CONTROL
CONNECTIONS
437
P
/
437
F
+
12
i
'
Z
0
H
32
R
H
T
0
H
A
7
13
u
+
I
-
A
CONTROL
POWER
2
H
+
?
1
T
*
G
32
R
O
8
52
V
L
EL
SI
TC
2
J
:
OTHER
RELAYS
TYPICAL
CONTROL
CONNECTIONS
437
W
/
437
G
+
121
32
R
T
4
7
11
-
J
+
1
..
Pickup
CONTROL
POWER
Vab
T
G
*
Si
J
TC
O
8
Cr
~
L
s
7
INTERNAL
LINK
SET
ON
30
DEG
Van
Trip
Sector
General
Notes
:
1
.
If
phase
-
sequence
is
A
-
C
-
B
,
connect
32
R
terminal
10
to
phase
C
potential
,
rather
than
to
phase
B
as
shown
above
.
2
.
If
the
potential
transformers
are
connected
Y
-
Y
instead
of
open
-
delta
as
shown
,
relay
may
be
connected
phase
a
-
to
-
neutral
if
the
internal
maximum
-
torque
-
angle
selector
plug
is
set
for
0
°
.
Notes
for
437
W
/
437
G
series
units
only
:
A
.
For
connection
shown
,
with
internal
link
on
30
degree
position
,
power
measured
is
per
the
formula
:
Single
-
phase
Watts
=
(
V
9
-
1 0
/
\
/
3
)
*
11
-
2
*
cos
fK
B
.
If
the
internal
link
is
set
on
the
0
°
position
the
measurement
is
per
the
formula
:
Single
-
phase
Watts
=
V
9
-
1 0
*
I
1
-
2
*
cos
-
6
-
.
Courtesy of NationalSwitchgear.com

Reverse Power
Relay
IB
7.8
.
1.7
-
1
Page
9
FIGURE
4
:
TYPICAL
CONNECTION FOR
REVERSE
VAR
DETECTION
a
TYPICAL CONTROL
CONNECTIONS
237
P
/
237
F
.
b
+
i
C
12
32
R
Phase
Sequence
a
-
b
-
c
0
7
5
2
13
+
CONTROL
POWER
52
a
16
Q
Q
8
Q
—
—
Q
—
[
32
—
(
1 1
*
1
TC
»
i
»
i
9
X
32
R
TYPICAL
CONTROL CONNECTIONS
437
P
/
437
F
+
i
ie
12
§
H
32
R
H
0
6
7
13
+
A
CONTROL
POWER
52
91
a
0
32
R
O
8
52
V
hM
TC
2
X
OTHER
RELAYS
TYPICAL
CONTROL
CONNECTIONS
437
W
/
437
G
+
12
32
R
6
7
11
CONTROL
POWER
52
a
IaPl
,
0
PF
G
»
Q
8
CXL
Pi
ok
up
32
INTERNAL
LINK
SET
ON
0
DEG
TC
V
_
^
/
“
Trip
w
Sector
General
Note
:
1
.
Catalog
Series
437
W
/
437
G
preferred
for
this
application
.
2
.
If
phase
sequence
is
A
-
C
-
B
,
reverse
the
connections
at
terminals
9
and
10
of the
relay
.
Notes
for
437
W
/
437
G
series
units
only
:
A
.
For
connection
shown
,
with internal
link
on
0
degree
position
,
VARS
measured
per
the
formula
:
Single
-
phase
VARS
=
V
9
-
1 0
*
1 1
-
2
*
cos
0
where
6
is
the
angle
between
I
*
and
VBC
.
»
Courtesy of NationalSwitchgear.com

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
10
437
P
/
F
,
237
P
/
F
Series
Units
Operating
Characteristic
Figure
5
:
Current
-
Directional
L
.
o
z
2.0
VO
H
U
H
J
H
0
-
W
VO
H
H
J
W
3
2
1.5
H
z
H
Z
H
W
H
1.0
>
b
<
2
H
U
U
»
Q
W
0.5
U
z
u
H
*
H
H
0
10
11
12
13
14
9
8
6
7
5
3
4
2
1
MULTIPLES
OF
PICKUP
Timing
Characteristic
For
437
W
/
437
G
Series
Units
with
Timing
Selector
Link
in
the
INV
(
inverse
)
Position
.
Figure
6
:
Courtesy of NationalSwitchgear.com

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
11
Figure
7
:
T
ypical
Lower
PC
Layout
Control
Voltage
Selector
Plug
437
P
/
437
F
237
P
/
237
F
Series
Maximum
Torque
Angle
Selector
Plug
(
not
supplied
on
earlier
units
)
Factory
Calibration
Pots
:
R
1
1
Maximum
Torque
Angle
R
17
Sector
Width
R
1
9
Time
Delay
Figure
8
:
4
4
Typical
Lower
PC
Layout
RVl
)
(
•
H
*
n
Control
Voltage
Selector
Plug
437
W
/
437
G
Series
Phase
Angle
Calibration
Pot
(
factory
adjustment
)
Maximum
Torque
Angle
Selector
Plug
Pickup
Calibration
Pot
Timing
Calibration
Pot
Time
Curve
Selector
Plug
O
Q
1
Courtesy of NationalSwitchgear.com

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
12
TESTING
1
.
MAINTENANCE
AND
RENEWAL
PARTS
No
routine
maintenance
is
required
on
the
Type
32
R
relay
.
Follow
test
instructions
to
We
recommend
that
an
inoperative
however
,
a
schematic
diagram
will
be
Renewal
parts
will
be
quoted
by
the
factory
on
request
.
verify
relay
be
returned
to
the
factory
for
repair
;
provided
on
request
.
that
the
relay
is
in
proper
working
order
.
237
P
/
237
F
Series
Units
:
Drawout
circuit
boards
of
the
same
catalog
number
are
interchangible
.
A
unit
is
identified
by
the
catalog
number
stamped
on
the
front
panel
and
the
serial
number
stamped
on
the
bottom
side
of
the
drawout
circuit
board
.
The
board
is
removed
by
using
the
metal
pull
knobs
on
the
front
panel
.
Removing
the
board
in
service
does
not
open
-
circuit
the
ct
’
s
.
is
available
for
use
in
troubleshooting
.
An
18
point
extender
board
,
cat
200
X
0018
,
437
P
/
437
F
/
437
W
/
437
G
Series
Units
:
Metal
handles
provide
leverage
to
withdraw
the
relay
assembly
from
the
case
.
Removing
the
unit
in
an
application
that
uses
the
normally
closed
contact
will
cause
a
trip
.
and
a
serial
number
stamped
on
the
bottom
of
the
board
.
assembly
is
identified
by
a
catalog
number
stamped
on
the
front
panel
The
Test
connections
are
readily
made
to
the
drawout
relay
unit
by
means
of
standard
banana
plugs
.
Current
connections
are
made
to
the
vertical
posts
at
the
blade
assembly
.
Control
power
and
output
connections
are
made
at
the
rear
vertical
circuit
board
.
This
rear
board
is
marked
for
easy
identification
of
the
connection
points
.
Should
separation
of
the
upper
and
lower
circuit
boards
be
necessary
,
remove
(
2
)
screws
that
attach
the
left
and
right
handle
assemblies
to
the
upper
printed
circuit
board
.
Certain
units
also
require
the
removal
of
the
(
2
)
screws
on
the
bottom
of
the
The
lower
circuit
board
An
18
point
access
to
this
lower
board
that
secure
the
board
to
the
backplane
board
,
can
then
be
withdrawn
forward
from
the
printed
circuit
connector
,
extender
board
(
catalog
200
X
0018
)
is
available
from
the
factory
if
assembly
is
required
for
troubleshooting
.
Note
that
on
437
W
/
437
G
series
units
there
is
a
3
conductor
color
coded
cable
that
connects
the
upper
and
lower
printed
circuit
boards
.
Carefully
remove
the
cable
from
the
connector
on
the
lower
circuit
board
before
separating
the
boards
.
Be
sure
to
restore
this
cable
before
testinQ
or
returning
the
relay
to
service
.
The
cable
must
be
reconnected
in
the
same
orientation
,
with
position
on
the
upper
board
connecting
to
position
$
1
on
the
lower
board
.
Test
Plug
:
catalog
400
X
0001
,
is
available
for
use
with
the
437
series
This
device
plugs
into
the
relay
case
on
the
switchboard
and
allows
access
to
external
circuits
wired
to
the
case
.
See
Instruction
Book
IB
7.7
.
1.7
-
8
for
A
test
plug
assembly
units
,
al
1
details
on
the
use
of
this
device
.
2
.
HIGH
POTENTIAL
TESTS
High
potential
tests
are
not
recommended
.
A
hi
-
pot
test
was
performed
at
the
factory
before
shipping
.
If
a
control
wiring
insulation
test
is
required
,
the
following
pro
-
cedures
are
given
based
on
the
catalog
series
of
the
relay
:
237
series
units
:
withdraw
the
drawout
element
from
the
case
.
Disconnect
the
link
or
jumper
between
terminals
16
and
G
on
the
rear
of
the
relay
case
.
used
to
connect
certain
internal
surge
suppression
components
to
ground
in
normal
Failure
to
remove
this
link
will
result
in
current
leakage
to
ground
Be
sure
to
reconnect
the
link
when
testing
is
completed
.
(
This
link
is
operation
.
during
testing
.
)
437
series
units
:
voltage
.
when
high
the
link
is
restored
to
its
position
to
connect
certain
surge
suppression
to
ground
for
normal
operation
.
This
link
is
labelled
"
Remove
for
Hipot
"
.
)
withdraw
the
drawout
element
from
the
case
before
applying
test
(
Note
:
a
link
provided
on
the
upper
circuit
board
is
temporarily
removed
potential
tests
are
conducted
on
the
relay
at
the
factory
.
After
testing
components
Courtesy of NationalSwitchgear.com

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
13
3
.
BUILT
-
IN
TEST
FEATURE
Tests
should
be
made
on
a
de
-
energized
main
circuit
,
energized
circuit
,
be
sure
to
take
all
necessary
precautions
,
available
to
make
this
test
.
If
tests
must
be
made
on
an
Control
power
must
be
The
built
-
in
test
is
provided
as
a
convenient
functional
test
of
the
relay
and
assoc
-
iated
trip
circuit
.
The
test
function
works
as
follows
:
when
you
depress
the
button
labelled
TRIP
,
the
pickup
circuit
of
the
relay
is
actuated
.
The
relay
then
times
out
and
the
output
contacts
transfer
to
trip
the
associated
breaker
or
auxiliary
relay
,
The
test
button
must
be
held
down
continuously
for
the
time
set
on
the
relay
in
order
to
obtain
an
operation
.
The
pickup
led
and
the
target
is
displayed
,
operating
should
light
during
this
period
,
indicating
timing
is
underway
.
Catalog
Series
237
P
/
237
F
/
437
P
/
437
F
4
.
ACCEPTANCE
TESTS
Without
Phase
-
Shifting
Source
:
A
typical
acceptance
test
circuit
is
given
in
Figure
8
.
The
control
voltage
source
should
match
the
relay
’
s
front
panel
rating
.
On
dual
-
rated
units
be
sure
the
internal
selector
link
has
been
positioned
properly
.
The
ac
source
should
be
60
Hz
.
or
50
Hz
.
to
match
relay
’
s
rating
,
and
the
voltage
and
current
outputs
must
be
essentially
in
phase
.
a
.
Set
the
PICKUP
dial
to
0.1
ampere
and
the
TIME
dial
to
1
second
.
b
.
Apply
control
voltage
.
Depress
the
TARGET
RESET
button
.
The
target
should
reset
to
black
.
Apply
approximately
120
vac
to
the
voltage
input
.
c
.
Apply
the
current
signal
and
increase
until
the
pickup
light
comes
on
solidly
and
the
contacts
transfer
.
(
The
pickup
light
may
blink
near
pickup
.
)
target
should
set
to
orange
when
the
output
contacts
transfer
,
the
operating
point
should
be
between
0.07
and
0.13
amperes
.
The
Current
at
d
.
Increase
the
input
current
to
0.5
ampere
.
Start
the
test
set
.
between
0.9
and
1.1
seconds
.
Turn
off
the
test
source
and
reset
The
relay
should
operate
to
stop
the
timer
the
timer
.
e
.
Reverse
the
current
leads
at
terminals
1
and
2
of
the
relay
,
target
.
The
relay
should
not
pick
up
.
Reset
the
Apply
voltage
and
current
and
increase
the
current
signal
to
1
amp
.
If
the
actual
settings
to
be
used
in
the
application
are
known
,
the
relay
should
be
calibrated
by
repeating
steps
(
c
)
and
(
d
)
,
except
adjusting
the
relay
dials
until
the
desired
pickup
current
and
time
delay
are
obtained
.
Timing
tests
should
be
run
with
the
current
set
at
150
%
of
pickup
or
higher
.
f
.
With
Phase
-
Shifting
Source
:
If
a
test
set
with
the
ability
to
shift
the
phase
of
the
ac
input
current
and
voltage
is
being
used
,
a
check
of
the
operating
characteristic
can
be
made
in
place
of
test
(
e
)
above
.
A
typical
test
circuit
is
shown
in
Fig
.
9
.
First
perform
the
tests
(
b
)
,
(
c
)
,
and
(
d
)
given
above
,
current
source
also
at
0
deg
)
.
(
Set
test
set
voltage
source
for
120
vac
at
0
degrees
,
Then
determine
the
operating
characteristic
:
a
.
Set
the
relay
’
s
pickup
at
0.1
ampere
and
the
time
delay
at
1
second
.
relay
is
equipped
with
a
maximum
torque
angle
selector
plug
(
see
Figure
7
)
place
the
plug
in
the
30
°
position
for
this
test
.
If
the
b
.
For
the
standard
Type
32
R
(
catalog
237
xxxx
1
or
437
xxxx
1
)
,
set
the
phase
angle
of
the
voltage
source
on
the
test
set
to
120
v
at
30
°
lead
.
Set
the
current
source
on
the
test
set
to
1
ampere
.
Vary
the
phase
of
the
current
signal
.
The
relay
should
pick
up
and
trip
for
phase
angles
from
90
°
lead
through
0
°
to
90
°
lag
.
The
relay
should
not
operate
for
phase
angles
from
90
°
lag
through
180
°
to
90
°
lead
.
The
tolerance
on
the
operating
characteristic
is
+
/
-
6
degrees
.
for
relays
without
the
30
°
internal
shift
(
catalog
237
xxxx
2
or
437
xxxx
2
)
,
or
for
the
0
°
position
of
the
maximum
torque
angle
selector
plug
(
see
Fig
5
)
set
the
voltage
source
at
120
v
,
0
°
.
Note
:
Courtesy of NationalSwitchgear.com

Reverse
Power
Relay
IB
7.8
.
1.7
-
1
Page
14
Catalog
Series
437
W
/
437
G
5
.
ACCEPTANCE
TESTS
Important
:
see
note
at
top
of
page
15
regarding
test
connections
.
Important
:
catalog
series
437
W
/
437
G
units
are
power
measurement
relays
;
therefore
,
variations
in
the
voltage
magnitude
,
current
magnitude
,
and
phase
angle
between
them
will
have
an
effect
on
the
operating
point
of
the
relay
.
Important
:
With
the
max
torque
angle
selector
link
in
the
0
°
position
,
the
relay
operates
on
the
quantity
:
V
9
-
1 0
*
I
1
-
2
*
cos
0
.
Power
With
the
max
torque
angle
selector
link
in
the
30
°
position
,
the
relay
operates
on
the
quantity
:
where
0
is
the
angle
by
which
the
applied
voltage
leads
the
current
.
(
v s
-
i o
/
y y
)
*
1 1
-
2
*
cos
(
e
-
3
o
°
)
,
Power
Without
Phase
-
Shifting
Source
:
A
typical
acceptance
test
circuit
is
given
in
Figure
8
.
The
voltage
and
current
outputs
of
the
test
set
must
be
in
phase
.
The
control
voltage
source
should
match
the
relay
’
s
front
panel
rating
.
On
dual
-
rated
units
be
sure
the
internal
selector
link
is
positioned
properly
.
The
ac
source
should
be
60
Hz
.
or
50
Hz
.
to
match
the
relay
’
s
rating
.
Set
the
internal
selector
links
for
0
degree
phase
shift
and
definite
time
delay
.
a
.
Set
the
front
panel
PICKUP
and
TIME
DELAY
dials
to
minimum
.
b
.
Apply
control
voltage
.
Depress
the
TARGET
RESET
button
.
The
target
should
reset
to
black
.
Apply
69
vac
to
the
voltage
input
.
c
.
Apply
the
current
signal
and
increase
until
the
pickup
light
comes
on
and
the
contacts
transfer
.
The
target
should
set
to
orange
when
the
output
69
Volts
X
Amps
.
Calculated
power
Power
in
watts
contacts
transfer
.
should
be
within
+
/
-
10
%
of
the
relay
’
s
minimum
pickup
rating
.
d
.
Increase
the
current
setting
to
two
times
the
value
required
for
pickup
.
Turn
off
the
source
and
reset
the
timer
.
Start
the
test
set
.
The
relay
should
pick
up
and
time
out
,
stopping
the
timer
.
Time
delay
should
be
within
+
/
-
10
%
of
the
time
dial
setting
.
e
.
Reverse
the
current
input
leads
at
terminals
1
and
2
of
the
relay
.
Apply
five
amperes
current
.
The
relay
should
not
pick
up
.
If
the
actual
settings
to
be
used
in
the
application
are
known
,
the
relay
should
be
calibrated
by
repeating
steps
(
c
)
and
(
d
)
,
except
adjusting
the
relay
’
s
front
panel
dials
until
the
desired
pickup
and
operating
time
are
obtained
.
f
.
Note
:
if
the
30
degree
internal
phase
shift
is
required
for
the
application
,
reposition
the
internal
selector
link
for
30
°
.
The
applied
ac
input
voltage
should
be
increased
to
120
vac
.
The
current
level
must
be
increased
by
a
factor
of
1.15
to
account
for
the
30
degree
internal
phase
shift
.
Power
measured
(
V
/
73
"
)
*
I
*
cos
30
°
.
(
cos
30
=
.
866
)
Note
:
if
the
inverse
timing
curve
is
to
be
used
,
reposition
the
internal
selector
link
.
Refer
to
the
timing
characteristic
in
Figure
6
for
expected
operating
times
.
Timing
tests
should
be
performed
with
the
input
power
set
at
2
multiples
of
pickup
or
higher
.
Additional
Checks
With
Phase
-
Shifting
Source
:
If
a
test
set
with
the
ability
to
shift
the
phase
of
the
ac
input
current
and
voltage
is
being
used
,
additional
checks
of
the
operating
characteristics
can
be
made
:
g
.
If
the
30
°
phase
shift
selection
is
made
,
test
(
f
)
above
can
be
performed
at
unity
power
factor
by
setting
the
voltage
to
lead
the
current
by
30
degrees
,
and
power
measured
becomes
:
P
=
(
V
/
N
/
T
)
*
I
.
Courtesy of NationalSwitchgear.com

Reverse Power
Relay
IB
7.8
.
1.7
-
1
Page
15
5
.
Testing
437
W
/
437
G
Series
Units
(
continued
)
Important
Note
:
in
order
to
test
the
drawout
units
of
relays
which
have
an
external
resistor
(
per
internal
connection
diagram
16
D
437
B
)
,
a
resistor
must
be
temporarily
be
connected
between
terminals
15
and
16
on
the
drawout
unit
.
The
value
of
this
resistor
depends
on
the
control
voltage
rating
of
the
relay
,
sufficient
.
220
vdc
unit
:
5000
ohms
;
250
vdc
unit
:
6000
ohms
.
resistor is
1500
ohms
;
A
25
watt
The
value
to
be
used
is
:
125
vdc
unit
:
2000
ohms
;
110
vdc
unit
:
TEST
SET
i
.
nn
l
a
120
TIMER
#
START
VOLTS
AMPS
STOP
TIMER
9
+
Q
0
+
Q
Figure
8
:
Typical
Test
Circuit
Without
Phase
-
Shifting
Source
.
CONTROL
VOLTABE
for
437
W
/
437
G
series units
output
contact
is
11
-
12
.
Note
:
S
’
S
'
08
05 01
03
f
t
Y
Y
.
t
/
vl
G
Connect
proper
resistor
15
-
16
if
relay
is
per
note
at
top
of
this
page
.
P
O
i
r
*
h
i
OIE
<
-
>
15
OIH
913
912
on
910
!
R
TEST
SET
I
1.00
G
ISO
TIMER
<
3
>
START
AMPS VOLTS
a
3
D
LEflO
5
T
0
P
TIMER
PHASE PHASE
+
+
oT
o
o
CONTROL
VOLTABE
Figure
9
:
Typical
Test
Circuit
With
Phase
-
Shifting
Source
.
05
OS
OR
03
r
r
Note
:
for
437
W
/
437
G
series units
output
contact
is
11
-
12
.
C
P
o
Connect
proper
resistor
15
-
16
if
relay
is
per
note
at
top
of
this
page
.
<
-
>
15
015
OlH
913
912
<
-
>
ll
910
5
6
.
OBSOLETE
RELAYS
:
Various
earlier
versions
of
the
type
32
R
relay
are
obsolete
and have
been
superseded
by
the
improved
series
covered
by
this
instruction
book
.
The
following
is
a
guide
to
the
replacement
of
the
earlier
units
.
Connections
for
all
of
the
earlier
units
are
per
internal
connection
diagram
16
D
237
C
on
page
5
,
EXCEPT
237
C
9171
.
Replace
with
"
Old
”
Catalog
Number
2
3
7
S
41
7
1
,
237
R
41
7
1
,
23
7
R
93
7
7
60
Hertz
System
50
Hertz
System
437
P
4671
437
F
4671
237
S
4191
,
237
R
4191
,
237
R
9397 437
P
4691 437
F
4691
237
C
9171
(
change
in
connections
required
)
437
Wxx
70
437
GXX
70
Courtesy of NationalSwitchgear.com