ABB CO User manual

Instruction
Leaflet
A
IIII
nm
»
ABB
Power
T
&
D
Company
Inc
.
Relay
Divisions
Coral
Springs
,
FL
33065
41
-
103
H
Type
CO
Circuit
Opening
Overcurrent
Relay
Effective
:
May
1984
Supersedes
I
.
L
41
-
103
G
,
Dated
June
1976
O
Denotes
Change
Since
Previous
Issue
CAUTION
ELECTROMAGNET
Before
putting
relays
into
service
,
remove
all
blocking
which
may
have been
inserted
for
the
purpose
of
securing
the
parts
during
shipment
,
make
sure
that
all
moving
parts operate
freely
,
inspect
the
contacts
to
see
that
they
are
clean
and close
properly
,
and
operate
the
relay
to
check
the
settings
and
electrical
connections
.
The
electromagnets
for
the
types
CO
-
5
,
CO
-
6
,
CO
-
7
,
CO
-
8
and
CO
-
9
relays
have
a
main
tapped
coil
located
on
the
center
leg
of
an
“
E
"
type
laminated
structure
that
produces
a
flux
which
divides
and
returns
through
the
outer
legs
.
A
shading
coil
causes
the
flux
through
the
left
leg
to
lag
the
main
pole
flux
.
The
out
-
of
-
phase
fluxes
thus
produced
in
the
air
gap
cause
a
contact
closing
torque
.
APPLICATION
The
electromagnets
for
the
types
CO
-
2
and
CO
-
ll
relays
have
a
main
coil
consisting
of
a
tapped
primary
winding
and
a
secondary winding
.
Two
identical
coils
on
the
outer
legs
of
the
lami
-
nation
structure
are
connected
to
the
main
coil
secondary
in
a
manner
so
that
the
combination
of
all
the
fluxes
produced
by
the
electromagnet
result
in
out
-
of
-
phase
fluxes
in
the
air
gap
.
The
out
-
of
-
phase
air
gap
fluxes
produced
cause
a
con
-
tact
closing
torque
.
These
induction
overcurrent
relays
are
used
to
disconnect
circuits
or
apparatus
when the
current
in
them
exceeds
a
given
value
.
When
no
suitable
station
battery
is available
,
the
circuit
opening
type
relay
in
conjunction
with
a
-
c
series
trip
coil
is
used
to
trip
the
circuit
breaker
.
CONTENTS
This
instruction
leaflet
applies
to
the
following
types
of
circuit
opening
relays
:
DE
-
ION CONTACTOR
SWITCH
(
CS
)
Type
CO
-
2
Short
Time
Relay
Type
CO
-
5
Long
Time
Relay
Type
CO
-
6
Definite
Minimum
Time
Relay
Type
CO
-
7
Moderately
Inverse
Time
Relay
Type
CO
-
8
Inverse
Time
Relay
Type
CO
-
9
Very
Inverse
Time
Relay
Type
CO
-
l
1
Extremely
Inverse
Time
Relay
This
switch
is
a
small
a
-
c
solenoid switch
whose coil
is
energized
from
a
small
transformer
connected
in
the
main
current
circuit
.
A
cylin
-
drical
plunger
operates
a
spring
leaf
arm
with
a
silver
contact
surface
on
one
end
and
rigidly
fixed
to
the
frame
at
the other
end
.
The
overcurrent
unit
contacts
are
in
the
con
-
tactor
switch
coil circuit
and
when
they
close
,
the
solenoid
plunger
moves
upward
to
open
the de
-
ion
contacts
which
normally
short
circuit
the
trip
coil
.
These
contacts
are
able
to
transfer
the
heavy
current
due
to
a
short
circuit
and
permit
this
cur
-
rent to
energize
the breaker
trip
coil
.
CONSTRUCTION
AND
OPERATION
The
type
CO
relays
consist
of
an
overcurrent
unit
(
CO
)
,
a
de
-
ion
contactor
switch
(
CS
)
.
an
op
-
eration
indicator
(
01
)
and
an
indicating
instan
-
taneous
trip
(
IIT
)
when
required
.
All
possible
contingencies
which
may
arise
during
installation
,
operation
or
maintenance
,
and
all details
and
variations
of
this
equipment
do
not
purport
to
be
covered
by
these
instructions
.
If
further information
is desired
by
purchaser
regarding
this
particular
installation
,
operation
or
maintenance
of
this
equipment
,
the local
ABB
Power
T
&
D
Co
.
Inc
.
representative
should
be contacted
.
Printed
in
U
.
S
.
A
.
Courtesy of NationalSwitchgear.com

I
.
L
.
41
-
103
H
INTfMAl
SCHEMATIC
INTIMIAL
SCHEMATIC
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-
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UNIT
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FHOHT
VIEW
Sub
2
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A
055
Sub
3
183
AO
54
ROH
:
TERM
.
2
AMO
a
ARE
TO
RE
JUMPERED
AT
RELAY
CASE
ROTE
:
TERM
.
2
AMD
0
ARE
TO
RE
JUMPERED
AT
RELAY
CASE
Internal
Schematic
of
the
Circuit
Opening
Type
CO
Relay
,
with
Indicating
Instantaneous
Trip
,
in
Type
FT
-
21
Case
Fig
.
1
.
Internal
Schematic
of
the
Circuit
Opening
Type
CO
Relay
in
Type
FT
-
21
Case
Fig
.
2
.
OPERATION INDICATOR
(
01
)
CHARACTERISTICS
The
operation
indicator
is
a
small
clapper
type
device
.
A
magnetic
armature
is
attracted
to
the
magnetic
core
upon
energization
of
the
switch
.
When
the
switch
closes
two
fingers
on
the
arma
-
ture
deflect
a
spring
located
on
the
front
of
the
switch
,
which allows
the
operation
indicator
target
to
drop
.
The
relays
are
available
in
the
following
current
range
:
TAPS
RANGE
4
5
6
7
8
10
12
4
-
1 2
The
front
spring
,
in
addition
to
holding
the
target
,
provides
restraint
for
the
armature
and
thus controls
the
pickup
value
of
the
switch
.
The
circuit
-
opening
relay
is
recommended
only
in
the
4
to
1
2
ampere
range
.
A
lower
range
is
not
desirable
because
the
burden
of
a
low
-
range
trip
coil is
too
heavy
on
the
current
transformer
.
One
trip
coil is
required
for
each
relay
.
INDICATING
INSTANTANEOUS
TRIP
UNIT
(
IIT
)
The
burden
of
the
auxiliary
current
trans
-
former
at
4
amps
,
is
4.6
VA
with
contacts
IIT
or
CO
closed
and
5.7
VA
with
contacts
open
.
The
instantaneous
trip
unit
is
a
small
a
-
c
oper
-
ated
clapper
type
device
.
A
magnetic
armature
,
to
which
leaf
-
spring
mounted
contacts
are
attached
,
is
attracted
to
the
magnetic
core
upon
energiza
-
tion
of
the switch
.
When
the
switch closes
,
the
moving
contacts
bridge
two
stationary
contacts
completing
the
trip
circuit
.
Also
,
during
the
op
-
eration
.
two
fingers
on
the
armature
deflect
a
spring
located
on
the
front
of
the
switch which
allows
the
operation
indicator
target
to
drop
.
The
time
vs
.
current
characteristics
are
shown
in
Figs
.
3
to
9
.
These characteristics
give
the
con
-
tact
closing
time
for
the
various
time
dial
settings
when the
indicated
multiples
of
tap
value
current
are
applied
to
the
relay
.
A
core screw
accessible
from
the
top
of
the
switch
provides
the
adjustable
pickup
range
.
2
Courtesy of NationalSwitchgear.com

I
.
L
.
41
-
103
H
ENERGY
REQUIREMENTS
TYPE
CO
-
2
RELAY
60
HERTZ
VOLT
AMPERES
* *
(
XA
FOR
50
HZ
)
AT
3
TIMES
TAP
VALUE
CURRENT
(
A
=
0.88
)
AT
10
TIMES
TAP
VALUE
CURRENT
(
A
=
0.9
)
AT AT
20
TIMES
TAP
VALUE
CURRENT
(
A
=
0.91
)
CONTINUOUS
RATING
TAP
(
AMPERES
)
ONE SECOND
RATING
*
(
AMPERES
)
POWER
FACTOR
ANGLE
0
TAP
VALUE
CURRENT
(
A
=
0.86
)
Q
AMPERE
RANGE
58
39.6
256
760
0.5 0.91
28
4.8
0.6
57
39.8 270
851
0.96
28
4.9
53
5.0 42.7
0.8
1.18
28
308
1024
1220
1740
0.5
/
2.5
5.3 45.4
50 348
1.0
1.37
28
40
6.2 54.4
435
1.5 1.95
28
7.2 65.4
2.24
28
580
2.0
36 2280
2850
7.9
73.6 700
2.5 2.50
28
29
59
5.04 38.7
262
2.0
3.1
no
800
5.13 39.8
920
2.5
55
280
4.0 110
5.37
3.0
110
51
42.8
312
4.4
1008
2
/
6
3.5 5.53
4.8
110
42.8
47
329
1120
5.72
4.0
5.2
45
46.0
no
360
1216
5.90
50.3
5.0 5.6
41
420 1500
no
6.0
6.54
6.0
37
no
54.9
474
1800
65
4.92
4.0
7.3
230
39.1
268 848
5.0 5.20
8.0
50
42.0
305
230
1020
6.0
8.8
5.34
230
47
44.1
330 1128
4
/
12
7.0
9.6 5.35 45.8
1260
230
46 364
8.0
49.9
10.4
230
5.86
400
1408
43
10.0
11.2
230
37
55.5
470
1720
6.6
62.3
12.0
12.0
230
7.00
528 2064
34
Thermal
capacities
for
short
times
other than
one
second
may
be
calculated
on
the
basis
of
time
being inversely
proportional
to
the
square
of
the
current
.
Degrees
current
lags
voltage
at
tap
value
current
.
Voltages
taken with
Rectox
type
voltmeter
.
•
*
3
Courtesy of NationalSwitchgear.com

I
.
L
.
41
-
103
H
ENERGY
REQUIREMENTS
CO
-
5
LONG
TIME
AND
CO
-
6
DEFINITE
MINIMUM
TIME
RELAYS
60
HERTZ
VOLT
AMPERES
*
*
(
XA
FOR
50
HZ
)
AT
10
TIMES
TAP
VALUE
CURRENT
(
A
=
0.9
)
AT
20
TIMES
TAP
VALUE
CURRENT
(
A
=
0.91
)
AT
3
TIMES
TAP
VALUE
CURRENT
(
A
=
0.88
)
AT
CONTINUOUS
RATING
TAP
(
AMPERES
)
ONE
SECOND
RATING
*
(
AMPERES
)
POWER
FACTOR
ANGLE
0
TAP
VALUE
CURRENT
(
A
=
0.86
)
Q
AMPERE
RANGE
69
(
0.5
20.6
88
3.92
103
270
2.7
(
0.6
68
88
3.96
20.7
106
3.1
288
(
0.8
67
3.7
88
21
3.96
114
325
0.5
/
2.5
(
1.0
66
4.07
21.4
88
122
4.1
360
0.5
62
88
4.19
23.2 147
5.7
462
(
2.0
60
24.9
4.30
168
88
548
6.8
(
2.5
58
88
4.37
26.2
180
7.7
630
230
(
2
67
21
3.88
8
110
308
230
(
2.5
66
21.6
8.8
3.87
118
342
230
(
3
64
9.7
22.1
3.93
126
381
230
2
/
6
(
3.5
63
10.4 23.1
4.09
136
417
230
(
4
62
11.2
23.5
4.08
144
448
230
(
5
59
12.5
4.20
24.8
162
540
230
(
6
57
13.7 26.5
4.38
183
624
460
(
4
16 65
4.00 22.4
126
376
460
(
5
63
18.8
23.7
4.15
143
450
460
(
6
19.3
61
4.32
25.3
162
531
4
/
12
460
(
7
20.8
59
4.35
26.4
183
611
460
(
8
22.5
56
27.8
4.40
4.60
204
699
460
GO
53
25
30.1
247
880
460
(
12
28
47
4.92 35.6
288
1056
CO
-
7
MODERATELY
INVERSE
TIME
RELAY
60
HERTZ
VOLT
AMPERES
*
*
(
XA
FOR
50
HZ
)
AT
3
TIMES
AT
10
TIMES
TAP
VALUE
TAP
VALUE
CURRENT
CURRENT
(
A
=
0.88
)
AT
20
TIMES
TAP
VALUE
CURRENT
(
A
=
0.91
)
AT
ONE
SECOND
RATING
*
(
AMPERES
)
POWER
FACTOR
ANGLE
0
TAP
VALUE
CURRENT
(
A
=
0.86
)
CONTINUOUS
RATING
(
AMPERES
)
O
AMPERE
RANGE
(
A
=
0.9
)
TAP
(
0.5
68
2.7 3.88
20.7
103
278
88
(
0.6
67 20.9
3.1
3.93
107
288
88
(
0.8
3.7
66
3.93
21.1
320
114
88
0.5
/
2.5
(
1.0
64
21.6
356
4.00
122
4.1
88
(
1.5
5.7
61
22.9
4.08
148
459
88
(
2.0
58
4.24 24.8 174
552
6.8
88
(
2.5
56
7.7
4.38 25.9
185 640
88
230
(
2
8
4.06
66
21.3
111
306
(
2.5
230
8.8
63
4.07
21.8
120 342
(
3
9.7
230
63
4.14 22.5
366
129
2
/
6
(
3.5
230
10.4
62
4.34
23.4
141
413
(
4
11.2
230
61
23.8
149
4.34
448
(
5
12.5
230
59
25.2
530
4.40
163
(
6
13.7
230
58
4.62
624
27
183
460
(
4
16
64
4.24
22.8 392
129
(
5
460
18.8
61
4.30 24.2
149
460
4
/
12
(
6
19.3
460
60
4.62 25.9
168 540
(
7
460
20.8
58
4.69
27.3
187
626
(
8
22.5
460
55
4.80 29.8
688
211
(
10
25 460
51
5.20
33 860
260
(
12
28 460
5.40
46
37.5
1032
308
Thermal
capacities
for
short
times
other
than
one
second
may
be calculated
on
the
basis
of
time
being
inversely
proportional
to
the
square
of
the
current
.
*
Degrees
current
lags voltage
at
tap
value
current
.
Voltages
taken
with
Rectox
type
voltmeter
.
* *
4
Courtesy of NationalSwitchgear.com

I
.
L
.
41
-
103
H
ENERGY
REQUIREMENTS
CO
-
8
INVERSE
TIME
AND
CO
-
9
VERY
INVERSE
TIME
RELAYS
60
HERTZ
VOLT
AMPERES
* *
(
XA
FOR
50
HZ
)
AT
20
TIMES
TAP
VALUE
CURRENT
(
A
=
0.91
)
AT
10
TIMES
TAP
VALUE
CURRENT
(
A
=
0.9
)
AT
3
TIMES
TAP
VALUE
CURRENT
(
A
=
0.88
)
AT
CONTINUOUS
RATING
TAP
(
AMPERES
)
ONE
SECOND
RATING
*
(
AMPERES
)
POWER
FACTOR
ANGLE
0
TAP
VALUE
CURRENT
(
A
=
0.86
)
Q
AMPERE
RANGE
2.38
350
72
21
132
88
(
0.5
2.7
71
2.38
365
88
21
134
(
0.6
3.1
2.40
69
142
400
88
21.1
(
0.8
3.7
2.42
0.5
/
2.5
88
67
150
440
21.2
4.1
(
1.0
2.51
62
530
22
170
(
1.5
88
5.7
2.65
88
57
23.5
200
675
6.8
(
2.0
2.74
53
24.8
800
228
88
(
2.5
7.7
2.38
70
136
360
21
230
(
2
8
2.40
66
21.1
142
395
230
(
2.5
8.8
2.42
64
430
230
149
9.7
(
3
21.5
62
2.48
470
157
2
/
6
230
22
(
3.5
10.4
2.53
60
500
230
22.7
164
11.2
(
4
2.64
58
580
12.5
230
24
180
(
5
2.75
56
198
660
230
25.2
(
6
13.7
2.38
68
21.3
146
420
16 460
(
4
2.46
63
21.8
158
480
(
5
460
18.8
2.54
60
172
550
460
22.6
(
6
19.3
2.62
4
/
12
57
190
620
460
23.6
(
7
20.8
2.73 700
54
207
22.5
460
24.8
(
8
3.00
248
850
460
48
27.8
25
(
10
45
3.46
292
1020
460
(
12
28
31.4
TYPE
CO
-
11
RELAY
60
HERTZ
VOLT
AMPERES
**
(
XA
FOR
50
HZ
)
AT
20
TIMES
TAP
VALUE
CURRENT
(
A
=
0.91
)
AT
3
TIMES
AT
10
TIMES
TAP
VALUE
TAP
VALUE
CURRENT
(
A
=
0.9
)
AT
POWER
FACTOR
ANGLE
o
TAP
VALUE
CURRENT
(
A
=
0.86
)
CONTINUOUS
RATING
(
AMPERES
)
ONE
SECOND
RATING
*
(
AMPERES
)
Q
AMPERE
RANGE
CURRENT
(
A
=
0.88
)
TAP
250
0.5 1.7
56 36
0.72
6.54 71.8
56 34
75.0
267
0.6
1.9
0.75
6.80
56
298
0.8
2.2
30
0.81
7.46
84.0
0.5
/
2.5
1.0 3.5
56
27 8.30
330
0.89
93.1
56
22
411
1.5
3.0
1.13
10.04
11.95
13.95
115.5
136.3
160.0
2.0
56
502
17
3.5
1.30
3.8
56
2.5
16
610
1.48
7.0
230
2.0
32
0.73
6.30
264
74.0
7.8
2.5
230 30
78.5
285
0.78
7.00
8.3
230
3.0
27
309
0.83
7.74 84.0
9.0
230
3.5
24
89.0
340
2
/
6
0.88
8.20
10.0
230
4.0
23
372
0.96
9.12
102.0
109.0
129.0
5.0
11.0
230 20
9.80
430
1.07
230
20
6.0
12.0
1.23
11.34
504
460
29
0.79
4.0
14
7.08 78.4
296
460 25
5.0
16
0.89
8.00
90.0
340
460
22
378
6.0 17
1.02
101.4
110.0
124.8
131.6
180.0
9.18
20
7.0
18 460
4
/
12
1.10
10.00
454
8.0
20
460
18
1.23
480
11.1
22
460
17
600
1.32
14.9
10.0
26
460 16
720
1.8 16.3
12.0
*
Thermal
capac
ities
for
short
times
other
than
one
second
may
be
calaculated
on
the
basis
of
time
being
inversely
proportional
to
the
square
of
the
current
.
if
.
Degrees
current
lags voltage
at
tap
value
current
.
* *
Voltages
taken
with
Hectox
type
voltnte
ter
.
5
Courtesy of NationalSwitchgear.com

I
.
L
.
•
1
-
103
H
O
Fig
.
3
.
Typical
Time
Curve
of
the
Type
CO
-
2
Relay
6
Courtesy of NationalSwitchgear.com

I
.
L
.
41
-
103
H
Fig
.
4
.
Typical
Time
Curve
of
the
Type
CO
-
5
Relay
1
Courtesy of NationalSwitchgear.com

I
.
L
.
41
-
103
H
Fig
.
5
.
Typical
Time
Curve
of
The
Type
CO
-
6
Relay
8
Courtesy of NationalSwitchgear.com

I
.
L
.
41
-
103
H
Fig
.
6
.
Typical
Time
Curve
of
the
Type
CO
-
7
Relay
9
Courtesy of NationalSwitchgear.com

I
.
L
.
41
-
103
H
Fig
.
7
.
Typical
Time
Curve
of
the
Type
CO
-
8
Relay
10
Courtesy of NationalSwitchgear.com