Numerical Protection Relay
GR-Series
POWER SYSTEM PROTECTION
GRZ 100 Distance Protection
GRL 100 Line Differential Protection
GRL 150 Line Differential Protection
（Pilot Wire Protection）
Transformer Protection
Low-Impedance Busbar Protection
High-Impedance Differential
Frequency, Voltage Protection
Circuit Breaker Failure Protection
Autoreclosing and Synchronism Check
GRT 100
GRB 100
GRB 150
GRF 100
GRC 100
GRR 100
DISTRIBUTION SYSTEM PROTECTION
GRD 110 Overcurrent Protection
GRD 130 Under/Overvoltage Protection
GRD 140 Directional Overcurrent Protection
GRD 150 Feeder Manager Relay
GR-Series
Numerical Protection Relay
POWER SYSTEM PROTECTION
◆ GRZ100
◆ GRL100
◆ GRL150
◆ GRT100
◆ GRB100
◆ GRB150
GRZ100
◆ GRF100
◆ GRC100
◆ GRR100
Distance Protection
Line Differential Protection
Line Differential Protection
(Pilot Wire Protection)
Transformer Protection
Low-Impedance Busbar Protection
High-Impedance Differential
Frequency, Voltage Protection
Circuit Breaker Failure Protection
Autoreclosing and Synchronism Check
●
●
-
●
-
●
-
DISTRIBUTION SYSTEM PROTECTION
◆ GRD110
◆ GRD130
◆ GRD140
◆ GRD150
GRD110
Overcurrent Protection
Under/Overvoltage Protection
Directional Overcurrent Protection
Feeder Manager Relay
GR
M
T
G
G
G
G
G
Si
T
G
G
G
G
Di
GRD150
2
T
G
G
G
G
y
FEATURES
● Fully numerical protection
● Metering and recording functions
● High performance
- Metering of electrical values
- High speed operation
- Fault & Disturbance records
- Improved selectivity and stability
- Event records
- Multi-functions
●Configurable binary inputs, outputs and
● High reliability
- Automatic supervision
- Fault Detector (Option)
● Low cost
- Low power consumption
- Compact size
programmable logic
● Menu-driven human interfaces
● Two serial ports for a local PC
and a remote PC
● Communication with Substation Automation System
● IRIG-B port for external clock
PRODUCT LINE-UP
GR-Series offers the solution for protection of power transmission and distribution systems.
Multi - Function relays
Type
GRZ100
GRL100
GRL150
GRB100
GRT100
Description
Distance Protection
Line Differential Protection
Line Differential Protection（Pilot Wire Protection）
Low-Impedance Busbar Protection
Transformer Protection
Simple-Function relays
Type
GRB150
GRR100
GRC100
GRF100
Description
High-Impedance Differential
Autoreclosing and Synchronism Check
Circuit Breaker Failure Protection
Frequency, Voltage Protection
Distribution System Protection Relays
Type
GRD110
GRD130
GRD140
GRD150
Description
Overcurrent Protection
Under/Overvoltage Protection
Directional Overcurrent Protection
Feeder Manager Relay
3
GR-Series
Features of Multi Function Relays
GRZ100
Application
Distance Protection
Current Differential Protection
Direct F.O. communication
Mulutiplexer communication
Pilot wire communication
Transformer/Reactor Protection
Busbar Protection
21
Distance, Phase fault
21N Distance, Earth fault
Command Protection（PUP, POP, UOP, BOP）
87
Phase-segregated differential
87N Zero-sequence differential
GPS-based synchronized sampling
87T Current differential with stability
against inrush and overexcitation
87H High-set differential overcurrent
REF Restricted earth fault
87
Current differential with enhanced
stability against CT saturation
REF with directional characteristics
Check zone element and discriminating zone element
51
Phase fault Time-O/C
51N Earth fault Time-O/C
50
Phase fault O/C
50N Earth fault O/C
67N Directional Earth fault
（DEF）
DEF using telecommunication
50BF Breaker Failure Protection
49
Thermal overload
27
Under voltage
59
Over voltage
81
Overfrequency, Underfrequency
24
Overexcitation
Out of step trip
Switch on to fault
Stub Protection
Power swing block
27Z Phase selection element
Broken conductor detection
Inrush currcut detection
85
Direct inter tripping
VT failure supervision
79
Autoreclosing (Single, Multi-pole)
25
Synchronism check
Zero sequence current elimination
Independent Fault detector
Fault location
Metering & Monitoring
Disturbance record
Event record
Fault record
Programmable logic controller (PLC)
Front : RS232C
Rear : RS485-1（＊1）
Rear : RS485-2（＊2）
Communication port
Rear : Fibre Optic（＊2）
Rear : 100BASE-TX（＊3）
Rear : 100BASE-FX（＊3）
IRIG-B port
Fe
GRL100
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GRL150
GRT100
GRB100
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（＊1）for communication with RSM for all types or IEC60870-5-103 except GRB100
（＊2）for communication with IEC60870-5-103
（＊3）for communication with IEC61850
● Standard
●
○ Model option
A
8
5
8
F
2
5
7
2
M
D
E
F
C
I
（＊1
（＊2
Fe
5
5
5
3
4
4
B
I
5
C
5
2
5
4
6
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8
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7
2
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C
M
C
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D
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C
（＊1
（＊2
4
0
ion
Features of Simple Function Relays
GRB150 GRC100 GRF100 GRR100
Application
Busbar Protection
Circuit Breaker Failure Protection
Restricted Earth Fault
Frequency, voltage relay
Autoreclosing
87
High-impedance differential
50BF Breaker Failure Protection
81
Underfrequency/ Overfrequency
Frequency rate-of-change
27
Undervoltage
59
Overvoltage
79
Autoreclosing
25
Synchronism check
Metering & Monitoring
Disturbance record
Event record
Fault record
Front : RS232C
Rear : RS485-1（＊1）
Communication port
Rear : RS485-2（＊2）
IRIG-B port
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● Standard
（＊1）for communication with RSM100
（＊2）for communication with IEC60870-5-103
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○ Model option
Features of Distribution System Protection
GRD110
50P/51P Phase Fault O/C
50N/51N Earth Fault O/C
50N/51N Sensitive Earth Fault
37P Phase Undercurrent
49
Thermal Overload
46
NPS Overcurrent（IDMTL, DTL）
Broken conductor detection
Inrush current detection
50BF Circuit Breaker Fail
Cold Load Protection
59
Phase O/V
（IDMTL, DTL）
27
Phase U/V
（IDMTL, DTL）
59N ZPS O/V（IDMTL, DTL）
47
NPS O/V（IDMTL, DTL）
67
Directional Phase Fault O/C（IDMTL, DTL）
67N Directional Earth Fault O/C（IDMTL, DTL）
67N Directional SEF（IDMTL, DTL）
67/46 Directional NPS Overcurrent（IDMTL, DTL）
81U/81O Under/Overfrequency
Frequency rate-of-change
79
Autoreclosing
25
Synchronism check
Fault Locator
CT Supervision
VT Supervision
Trip circuit supervision
Self supervision
CB State Monitoring
Trip Counter Alarm
ΣIy Alarm
CB Operate Time Alarm
Multi settings groups
Circuit Breaker Control and Monitoring
Disconnect Control and Monitoring
Earthing switch Control and Monitoring
MIMIC Display
Metering
Fault records
Event records
Disturbance records
Programmable logic controller (PLC)
Front : RS232C
Communication port
Rear : RS485-1（＊1）
Rear : RS485-2（＊2）
GRD130
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（＊1）for communication with RSM100 for all types or IEC60870-5-103 except GRD150
（＊2）for communication with IEC60870-5-103
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GRD140
GRD150
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● Standard
○ Model option
5
GR-Series
APPLICATION EXAMPLES
Transmission line
GRZ100
EHV
GRL100, GRZ100, GRL150
Line protection
GRL100
GRC100
GRB150
Breaker failure protection
GRT100
Transformer protection or
Reactor protection
GRC100
GRB150
Busbar protection
GRB150
(High-impedance differential)
GRB100
Busbar protection
(Low-impedance differential)
Fi
Th
mi
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co
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inp
de
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an
sig
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pu
are
sta
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co
an
GRD110-140
Feeder protections
GRT100
GRT100
GRD150
Feeder manager relay
Cu
Vo
Ext
clo
GRB150
GRD130
GRT100
HV
LV
Loc
GRD150
GRD110
GRL100
GRB100
GRZ100
Transmission line
6
or GRD140
GRL150
Distribution feeder
Th
co
HARDWARE
50
)
l)
METERING AND RECORDING
Figure 1 shows the hardware block diagram of the relay.
The relay has a multiple microprocessor design. The
microprocessors perform the software functions such as signal
processing, protection algorithm, scheme logic, output relay
control and handling of the human interface.
Analog inputs include phase current inputs, residual current
inputs and phase voltage inputs. The number of analog inputs
depends on the type of the relay.
The internal auxiliary transformers are used to isolate, step down
and condition the inputs from the VT and CTs. Their output
signals are then converted into digital data for further processing.
The front panel contains a liquid crystal display (LCD) and
pushbutton keys to provide local access to the relay menu. There
are also light emitting diodes (LED) for visual indication of the
status of the relay.
The relay provides three communication ports, RS232C for
connection of a local PC, RS485 for a remote PC and IRIG-B for
an external clock.
Transformer
module
Current
Voltage
External
clock
-CT
-VT
-IRIG-B
Signal
processing
module
Binary input
output
module
-Analog filter
-DC/DC
converter
-Binary input
-A/D converter
-MPU
-Binary output
(trip)
-Binary output
(signal)
-RS485
Metering and Monitoring
The following power system data is an example of what is
measured continuously and displayed on the LCD, on the relay
fascia, at the local PC, and the remote PC when connected.
- Voltages (phase, phase to phase, symmetrical components)
- Currents (phase, phase to phase, symmetrical components)
- Active power and reactive power
- Frequency
Currents and voltages can be indicated in LCD or local/remote
PC as primary or secondary values. Active power and reactive
power are indicated as primary values.
It depends on the type of the relay which power system data
could be measured and displayed.
The user can monitor the following output and status indications
on the LCD and at local/remote PCs.
- Relay element output
- Binary input/output
Event Record
DC supply
Input
Output
Remote PC
Time-tagged events are stored with 1ms resolution.
Events recorded are as follows.
- Tripping operations
- Alarms
- Change of state of binary inputs/outputs
- Change of relay setting
- Failure detected by automatic supervision
- Other events defined by user
Fault Record
0
LV
0
0
Local PC
-LCD
Human
-LED
machine
-Operation key interface
-RS232C I/F
Fig.1 Hardware block diagram
The terminal blocks are located at the rear of the relay providing
connections for all input and output circuits.
A relay trip initiates fault recording. Records are stored for the 8
most recent faults, time-tagged to 1ms resolution. The fault
record is available on the relay fascia LCD and at a local or
remote PC. Fault records include the following data:
Date and time of trip operation.
Operating phase.
Protection scheme responsible for trip.
Measured current data.
Disturbance Record
The relay can record analog and binary signals initiated by
relay tripping. The post-trigger recording time can be set, and
the maximum number of records which can be stored is
dependent on the recording time chosen.
Calendar and Time
The relay provides a date and time for tagging of records.
7
GR-Series
USER INTERFACE
Relay Front Panel
A user friendly interface is provided on the relay front panel. A
menu-based system provides for easy programming of relay
functions and access to real-time and stored data. The front
panel includes LCD with backlight, LEDs, operation keys and
RS232C port for a local PC.
Local PC Connection
The user can communicate with the GR-relay from a local PC
via the RS232C port on the front panel. Using RSM100 software,
the user can view and modify settings, monitor real-time
metering and analyse recorded data.
Me
Remote Setting and Monitoring (RSM)
GR-relays can be connected to the RSM system via the rear
mounted serial communications port, using either RS485 or fibre
optic connections (specified at time of order). Using RSM100
software, the user can view and modify settings, monitor
real-time metering and analyse recorded data.
A maximum of 8×32 relays can be connected to the remote PC in
multi-drop mode, through a protocol converter, with a maximum
data transmission rate of 64kbps. GR-relays are compliant with
the IEC60870-5-103 transmission protocol.
The figures below show the configuration of the RSM system and
typical displays from the RSM100 software.
Ev
PROTOCOL CONVERTOR
G1PR2 (Option)
RS232
COMMUNICATIONS
NETWORK
RS232
1
4
5
8
TOSHIBA
TOSHIBA
TOSHIBA
TOSHIBA
1
2
32
256
OPTICAL/RS485
INTERFACE
TOSHIBA
226
225
TOSHIBA
OPTICAL/RS485
INTERFACE
Fa
TOSHIBA
TOSHIBA
Metering 1
Metering 1
TOSHIBA
TOSHIBA
R
97
98
128
160
130
129
Fig.2 Relay setting and monitoring system
IEC61850 Communication
Some of the relay types can support data communication
according to the IEC 61850 standard. Station bus communication
as specified in IEC 61850-8-1 facilitates integration of the relays
within substation control and automation systems via Ethernet
LAN, either 100BASE-TX or 100BASE-FX.
8
Th
the
Pa
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Co
GR
nu
PC DISPLAY
A
ay
ont
nd
PC
re,
me
Vector record
Metering
ear
bre
00
tor
in
um
ith
nd
Event record
Data analysis
S485
S485
on
on
ays
net
Fault record
PLC editor
Relay Setting
Binary Inputs
The user can input or change settings using the operation keys on
the relay fascia or via a local or remote PC with the RSM system.
Password protection is provided to change settings.
Four to eight active setting groups are provided.
The number of setting groups depends on the relay type.
GR-relays provide programmable binary inputs.
The number of inputs varies according to the relay type.
Configurable Binary Output Contacts
GR-relays provide programmable binary output contacts. The
number of outputs varies according to the relay type.
PLC Function
Some GR-relays are provided with a PLC (Programmable Logic
Control) function allowing user-configurable sequence logics on
binary signals. Configurable binary inputs, binary outputs and
LEDs are programmed by the PLC function.
9
GR-Series
TYPICAL TECHNICAL DATA
The following data varies according to the relay type. The detailed data could be referred to each brochure
of the relay type.
Ratings
AC current In:
AC voltage Vn :
Frequency:
DC auxiliary supply:
Superimposed AC ripple on DC supply:
DC supply interruption:
Binary input circuit DC voltage:
Burden
AC phase current inputs:
AC earth current inputs:
DC power supply:
1A or 5A
100V, 110V, 115V, 120V
50Hz or 60Hz
110/125Vdc (Operative range: 88 - 150Vdc)
220/250Vdc (Operative range: 176 - 300Vdc)
48/54/60Vdc (Operative range: 38.4 - 72Vdc)
24/30Vdc (Operative range: 19.2 - 36Vdc)
12%
50ms at 110V
110/125Vdc (Operative range: 88 - 150Vdc)
220/250Vdc (Operative range: 176 - 300Vdc)
48/54/60Vdc (Operative range: 38.4 - 72Vdc)
24/30Vdc (Operative range: 19.2 - 36Vdc)
0.1VA (1A rating)
0.3VA (5A rating)
0.1VA (1A rating)
0.3VA (5A rating)
10-16W (quiescent)
15-25W (maximum)
0.5W per input at 110Vdc
Binary input circuit:
Communication port - local PC (RS232)
Point to point
Connection:
Multi-core (straight)
Cable type:
15m (max.)
Cable length:
RS232C 9pin D-subminiature connector female
Connector:
Communication port - remote PC (RS485 for IEC60870-5-103 or RSM)
Multidrop (max. 32 relays)
Connection:
Twisted pair cable
Cable type:
1200m (max.)
Cable length:
Screw terminals
Connector:
1kVac for 1 min.
Isolation:
64kpbs for RSM system
Transmission rate:
9.6, 19.2kbps for IEC60870-5-103
Communication port - remote PC (Fibre Optic for IEC60870-5-103)
Cable type:
50/125 or 62.5/125μm fibre
Cable length:
2km (max.)
Connector:
ST type connector
Transmission rate:
9.6, 19.2kbps for IEC60870-5-103
Communication port - Substation Automation Systems (IEC61850)
Ethernet LAN Interface
10BASE-T: RJ-45 connector
100BASE-TX: RJ-45 connector
100BASE-FX: SC connector
RELAY OUTLINE
TYPE
GRZ100
GRL100
GRL150
GRB100
GRT100
GRB150
GRR100
GRC100
GRF100
GRD110
GRD130
GRD140
GRD150
10
DESCRIPTION
Distance Protection
Line Differential Protection
Line Differential Protection (Pilot Wire Protection)
Low-Impedance Busbar Protection
Transformer Protection
High-Impedance Differential
Autoreclosing and Synchronism Check
Circuit Breaker Failure Protection
Frequency, Voltage Protection
Overcurrent Protection
Under/Overvoltage Protection
Directional Overcurrent Protection
Feeder Manager Relay
RELAY CASE
A or B
A or B
D
B
A
C
C
C
C
D
D
D
E
Relay Case Type-A
re
IN SERVICE
TRIP
VIEW
ALARM
TESTING
266
RISET
A
B
7
8
9
4
5
6
1
2
0
.
OV
ENTER
3
END
CANCEL
254
276.2
32
Relay Case Type-B
LINE DIFFERENTIAL PROTECTION
IN SERVICE
VIEW
TRIP
ALARM
TESTING
266
RISET
A
B
OV
7
8
9
4
5
6
1
2
0
3
.
ENTER
END CANCEL
345.4
364
276.2
Relay Case Type-D
Relay Case Type-C
IN SERVICE
TRIP
ALARM
TESTING
VIEW
ALARM
RISET
A
B
32
258
258
OV
CANCEL
ENTER
END
104
243.5
15.6
104
32
15.6
185.2
32
Relay Case Type-E
FEEDER MANAGER
IN SERVICE
ALARM
TRIP
TEST
266
LOCAL
L/R
SELECT
VIEW
REMOTO
ENTER
A
RISET
END
B OV
CANCEL
F1
254
F2
30
205
30
11
Numerical Protection Relay
GR-Series
G
P
G
G
G
G
G
G
G
G
G
D
G
G
G
G
Power Systems Company
1-1,SHIBAURA 1-CHOME,MINATO-KU, TOKYO 105-8001,JAPAN
PHONE;+81-3-3457-3644 FAX;+81-3-5444-9168
http://www.toshiba-relays.com
The data given in this catalog are subject to change without notice.
6643-3 0803T1