Numerical Relay S Series
Feeder Protection Relay
Description
S Series is a numerical type protection relay product with a microprocessor for protecting
high/extra-high-voltage electric power system.
This series of protection relay will allow stable and effective control and monitoring of
electric power systems as well as provide high-reliable protection.
Features
・Highly Accurate Digital Computation The digital computation using high-speed sampling minimizes the effect of harmonics,
etc., and result in highly accurate protection.
・Self-diagnosis
The continuaously monitoring electronic circuits from input to output can detect
internal failure before that failure causes damage on the power system, thereby
improving reliability.
・Operation time characteristics
Sixteen sorts of operation time characteristics are installed as a time-delayed element.
The optimal operation time characteristic can be chosen with the coordinated
characteristic of the overcurrent relay at the sending distribution substation.
・Compactly
Various relay elements are contained compactly. It is the best for replacement of
existing.
・Energy saving
It is a low power consumption article. The miniaturization of CT and VT is realizable.
Data display
In service monitor
(RUN) indicator
Display item
selecting switch
Alarm indicator
Alarm hold mode
setting switch/
Frequency setting
switch
Relay settings
Indicator
reset switch
Forced operation switch
Operation
indicator
Front view (cover removed)
Common Technical Data
I T E M
DESCRIPTION
Ambient operating
temperature
Environment Ambient storage and
transport temperature
Damp heat
Auxiliary power supply
Operative range of
auxiliary power supply
Ratings
Burden
Thermal
withstand
Contact
capacity
Frequency
VT
CT
Auxiliary power supply
VT
CT
VT
CT
Open contact
Impulse voltage test
Highfrequency
disturbance
test
Common mode
Differential mode
Electrostatic discharge test
Radiated electromagnetic field
disturbance test
Fast transient disturbance test
IEC60255-6
−25℃ to ＋70℃
IEC60255-6
＋40℃,95%RH,4days
110VDC,110VAC
(Applicable to any
voltage above)
DC:−15% to ＋10%
(Temporarily −20% to ＋30%)
AC:−15% to ＋10%
(Temporarily −15% to ＋15%)
50/60Hz
IEC60068-2-78
IEC60255-6
IEC60255-6
See manual of each relay type
(L/R=0)
(L/R≦40ms)
(COSφ=0.4)
(L/R=0.007s)
1)Between each circuit and the
exposed conductive parts, the
terminals of each independent
circuit being connected
together
2000VAC,1min
2)Between independent circuits,
the terminals of each
independent circuit being
connected together
Between open contact poles
1000VAC,1min
1)Between each circuit and the
exposed conductive parts, the
terminals of each independent
circuit being connected
5kV, 1.2μs/50μs
together
2)Between independent circuits,
the terminals of each
independent circuit being
connected together
2.5kV peak,1MHz with 200Ω Between independent
source impedance for 2s
Circuits, and between
independent circuit and earth
1.0kV peak,1MHz with 200Ω Across terminals of the
source impedance for 2s
same circuit
8kV
Contact discharge
15kV
Air discharge
38 to 87MHz 146 to 174MHz
420 to 470MHz
2.0kV,5ns/50ns,1min
Refer to class 1
Shock response
Refer to class 2
Shock withstand
Refer to class 1
Bump
Refer to class 1
Enclosure protection
IEC60255-6
See manual of each relay type
Vibration test
VN : Rated voltage
STANDARD
−10℃ to ＋55℃
1.15VN,3h
40IN,1s
110V DC:15A,0.5s
Make
220V DC:10A,0.5s
For trip
110V DC:0.3A
Break
220V DC:0.15A
10VA
Break
10W
For signaling and alarm
Max.
5A
current
Max.
380VAC/125VDC
Voltage
Circuit of 60V or below 500VAC,1min
Dielectric test Circuit of more than
60V and 500V or below
CONDITION
IP51
IN : Rated current
IEC60255-5
IEC60255-5
IEC60255-22-1
class 3
IEC60255-22-2
class 4
IEC60255-22-3
class 3
IEC60255-22-3
IEC60255-21-1
class 1
IEC60255-21-2
class 2
IEC60255-21-2
class 1
IEC60255-21-2
class 1
IEC60529
!
Operation Time characteristics of Overcurrent Element
500
NI01：Normal inverse time-lag characteristic
0.14
M
(s)
t＝ 0.02
×
I −1
10
100
Operation time“ t ”(s)
VI01：Very inverse time-lag characteristic
13.5
M
(s)
t＝
×
I−1
10
EI01：Extremely inverse time-lag characteristic
80
M
(s)
t＝ 2
×
I −1
10
10
LI01
NI01
DT01
1
VI01
EI01
LI01：Long inverse time-lag characteristic
54
M
(s)
t＝
×
I−1
10
DT01：Difinite time-lag characteristic
M
(s)
t＝ 2 ×
10
ｔ：Oreration time
Ｉ：Input current multiplying factor
against set value
Ｍ：Operation time multiplier(times)
0.1
1
2
5
10
20
Current (multiple against setting value) “I”
"
500
NI11：Normal inverse time-lag characteristic
0.0515
M
(s)
t＝ 0.02
＋ 0.114 ×
I −1
10
（ ）
100
EI11：Extreme inverse time-lag characteristic
19.61
M
(s)
t＝ 2
＋ 0.491 ×
I −1
10
Operation time“ t ”(s)
（ ）
EI12：Extremely inverse time-lag characteristic
28.2
M
(s)
t＝ 2
＋ 0.1217 ×
I −1
10
（ ）
10
NI21：Normal inverse time-lag characteristic
2.4
M
(s)
t＝ 0.4
＋ 1.2 ×
I −1
10
（ ）
LI21
NI21
VI21
NI11
1
EI11
EI12
0.1
1
2
5
10
20
Current（multiple against setting value）“I”
VI21：Very inverse time-lag characteristic
16
M
(s)
t＝
＋ 0.4 ×
I−1
10
（ ）
LI21：Long inverse time-lag characteristic
60
M
(s)
t＝
×
I−1
10
ｔ：Oreration time
Ｉ：Input current multiplying factor
Against set value
Ｍ：Operation time multiplier
500
MI31：Moderately inverse time-lag characteristic
NI31：Normal inverse time-lag characteristic
100
VI31：Very inverse time-lag characteristic
Operation time“ t ”(s)
EI31：Extremely inverse time-lag characteristic
t ＝M
10
MI31
B
D
E
＋
＋
I −C
(I −C)2
(I −C)3
ｔ：Oreration time
Ｉ：Input current multiplying factor
against set value
Ｍ：Operation time multiplier
NI31
VI31
1
EI31
0.1
A＋
1
2
5
10
20
EI31
NI31
VI31
A
MI31
0.1735
0.0399
0.0274
0.0615
B
0.6791
0.2294
2.2614
0.7989
C
0.8000
0.5000
0.3000
0.3400
D
−0.0800
E
0.1271
3.0094 −4.1899 −0.2840
0.7222
9.1272
4.0505
Current（multiple against setting value）“I ”
#
Operation time“ t ”(s)
1
DT(INST): Definite time-lag characteristic
t < 0.04 (s)
t: Operation time
I: Input current multiplying factor
against set value
0.1
DT(INST)
0.01
1
2
5
10
20
Current（multiple against setting value）“I ”
Specifications
Name
Overcurrent Relay
Type
COC4-A01S1
CBV2-A01S1
CBV3-A01S1
50Hz or 60Hz
50Hz or 60Hz
50Hz or 60Hz
5A
110V/220V
110V/220V
−
−
１１０/１９０V
Phase fault Time-lag (51)
Operation value:
LOCK−１.０−１.５−２−２.５−３−
３.５−４−５−６−７−８−１０−１２A
Time multiplier:
０.２５−０.５−１−１.５−２−２.５−３−
３.５−４−５−６−７−８−９−１０−２０
Operation characteristic
Extremely inverse
Very inverse
Normal inverse
Long inverse
Definite time
Phase fault Instantaneous(50)
Operation value:
LOCK−１０−１５−２０−３０−４０−６０−８０A
Operation Time:
INST（４０ms or less）
Earth fault Time-lag (51N)
Operation value:
LOCK−０.２５−０.３５−０.５−０.６−０.７−
０.８−１.０−１.５−２.０−２.５−３.０−４.０A
Time multiplier:
０.２５−０.５−１−１.５−２−２.５−３−
３.５−４−５−６−７−８−９−１０−２０
Operation characteristic
Extremely inverse
Very inverse
Normal inverse
Long inverse
Definite time
Earth fault Instantaneous(50N)
Operation value:
LOCK−２−２.５−３−４−５−７−
１０−１５−２０ A
Operation Time:
INST（４０ms or less）
Under Voltage (27)
Operation value:
LOCK−６０−６５−７０−７５−８０−
８５−９０−１２０−１３０−１４０−１５０
−１６０−１７０−１８０V
Operation Time:
INST−０.１−０.２−０.３−０.４−０.５
−０.６−０.７−０.８−０.９−１.０−１.５
−２.０−３.０−４.０−５.０s
Over Voltage (59)
Operation value:
LOCK−１２０−１２５−１３０−１３５
−１４０−１５０−２４０−２５０−２６０V
Operation Time:
INST−０.１−０.２−０.３−０.４−０.５
−０.６−０.７−０.８−０.９−１.０−１.５
−２.０−３.０−４.０−５.０s
Under Voltage (27)
Operation value:
LOCK−６０−６５−７０−７５−８０−
８５−９０−１２０−１３０−１４０−１５０
−１６０−１７０−１８０V
Operation Time:
INST−０.１−０.２−０.３−０.４−０.５
−０.６−０.７−０.８−０.９−１.０−１.５
−２.０−３.０−４.０−５.０s
Over Voltage (59)
Operation value:
LOCK−１２０−１２５−１３０−１３５
−１４０−１５０−２４０−２５０−２６０V
Operation Time:
INST−０.１−０.２−０.３−０.４−０.５
−０.６−０.７−０.８−０.９−１.０−１.５
−２.０−３.０−４.０−５.０s
Earth fault Overvoltage (64)
Operation value:
LOCK−５−１０−１５−２０−２５
−３０−４０−５０−６０V
Operation Time:
INST−０.１−０.２−０.３−０.４−０.５
−０.６−０.７−０.８−０.９−１.０−１.５
−２.０−３.０−４.０−５.０s
Frequency
Ratings
CT・VT
ZCT・EVT
Settings
Specifications
$
(５１)
(５０)
(５１N)
(５０N)
Voltage Relay
Protection
Elements
３I >
３I >>
Io >
Io >>
Measurement
・Current
･Voltage
･Voltage
･Zero−phase voltage
Applications
Containes 3-phase overcurrent
element and an earth fault overcurrent element; phase fault
and earth fault protection of a
３-phase circuit in a resistance
earthed neutral system can be
achieved with 1 relay.
See figure 1.
Contains ３-phase undervoltage
element and ３-phase overvoltage element, being used to detect abnormal voltage between
lines.
See figure 2.
Contains an undervoltage, an
overvoltage, and an earth fault
overvoltage element, being
used to detect bus voltage abnormalities.
See figure 3.
Remarks
Draw out type with automatic
CT shorting mechanism is also
available. (Type COC4-A01SD)
Refer to Fig.1
Draw out type is also available.
(Type CBV2-A01SD)
Refer to Fig.2
Draw out type is also available.
(Type CBV3-A01SD)
Refer to Fig.3
３U <
３U >
(２７)
(５９)
U < (２７)
U > (５９)
Uo > (６４)
Connection Diagram
A B C
Auxiliary
＋
Power supply
01
07
Y
Self-diagnosis output
08
03
X0
09
17
10
IA
18
X1
11
19
IB
X2
12
20
Contact
common
Phase fault
time-lag
I＞
Control
contacts
Phase fault
instantaneous
I ＞＞
Earth fault
I ＞
21
IC
22
13
X4
Trip contact
14
15
I0
16
E
Automatic CT shorting
and draw-out mechanism
are available for only type
COC4-A01SD.
E
Figure1 COC4-A01S1
A B C
Auxiliary
power supply
＋
07
01
Y
03
X0
X1
16
V AB
09
10
15
VT
08
11
Self-diagnosis output
Contact
common
Undervoltage
U＜
Control
contacts
Overervoltage
U＞
%
17
18
V BC
19
V CA
X3
13
Trip contacts
14
20
E
E
Draw-out mechanism is
available for only type
CBV2-A01SD.
Figure2 CBV2-A01S1
＋
A
B
C
Auxiliary
power supply
01
03
Y
07
08
X0
EVT
09
10
X1
17
Contact
common
Undervoltage
U＜
11
Overvoltage
U＞
12
Earth fault
U ＞
X2
V AB
Self-diagnosis output
Control
contacts
18
X3
ｆ
ａ
R
15
V0
E
13
Trip contact
14
16
E
Figure3 CBV3-A01S1
Draw-out mechanism is
available for only type
CBV3-A01SD.
Numerical Relay
S Series
Mounting and Dimensions
158
20
101
150
85
Front view
Side view
Panel cutout
HEAD OFFICE
CAUTION
TO PREVENT IT FROM THE RISK OF DAMAGE AND MAL FUNCTION,
BE SURE TO READ OPERATING AND MAINTENANCE (SERVICING)
INSTRUCTIONS BEFORE USING.
Please note that specifications are subject to change without notice.
180
155
20
180
202
2-Ｍ5 screw
2-φ6 holes
: 7-3 MARUNOUCHI 2-CHOME, CHIYODA-KU
TOKYO, 100-8310, JAPAN
We are waiting your technical contacts by FAX.
ATTN. Protective relay technimal service
FAX NO. JAPAN +81-78-996-7044
60515−3 04−12Y 20