GR series revb 6643 3

Numerical Protection RelayGR-Series POWER SYSTEM PROTECTION GRZ 100 Distance Protection GRL 100 Line Differential Protection GRL 150 Line Differential Protection （Pilot Wire Protec

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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）

GRT 100 Transformer Protection

GRB 100 Low-Impedance Busbar Protection

GRB 150 High-Impedance Differential

GRF 100 Frequency, Voltage Protection

GRC 100 Circuit Breaker Failure Protection

GRR 100 Autoreclosing and Synchronism Check

DISTRIBUTION SYSTEM PROTECTION GRD 110 Overcurrent Protection

GRD 130 Under/Overvoltage Protection

GRD 140 Directional Overcurrent Protection

GRD 150 Feeder Manager Relay

The data given in this catalog are subject to change without notice 6643-3 0803T1

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Numerical Protection Relay

GRZ100 Distance Protection GRL100 Line Differential Protection GRL150 Line Differential Protection (Pilot Wire Protection) GRT100 Transformer Protection GRB100 Low-Impedance Busbar Protection GRB150 High-Impedance Differential

GRF100 Frequency, Voltage Protection GRC100 Circuit Breaker Failure Protection GRR100 Autoreclosing and Synchronism Check

POWER SYSTEM PROTECTION

DISTRIBUTION SYSTEM PROTECTION

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GRZ100

GRD110

GRD150

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PRODUCT LINE-UP

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Fully numerical protection High performance

High speed operation Improved selectivity and stability Multi-functions

High reliability

Automatic supervision Fault Detector (Option)

Low cost

Low power consumption Compact size

FEATURES

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-Metering and recording functions

Metering of electrical values Fault & Disturbance records Event records

Configurable binary inputs, outputs and 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

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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

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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)

Communication port

IRIG-B port

Features of Multi Function Relays

GRZ100 GRL100 GRL150 GRT100 GRB100

Front : RS232C Rear : RS485-1 （＊1）

Rear : RS485-2 （＊2）

Rear : Fibre Optic （＊2）

Rear : 100BASE-TX （＊3）

Rear : 100BASE-FX （＊3）

● Standard ○ Model option

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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

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（＊1） for communication with RSM100 for all types or IEC60870-5-103 except GRD150

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（＊1） for communication with RSM for all types or IEC60870-5-103 except GRB100

（＊3） for communication with IEC61850

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Features of Simple Function Relays

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 Communication port IRIG-B port

GRB150 GRC100 GRF100 GRR100

Rear : RS485-2 （＊2）

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（＊1） for communication with RSM100

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) Communication port

Features of Distribution System Protection

GRD110 GRD130 GRD140 GRD150

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Rear : RS485-2 （＊2）

（＊1） for communication with RSM100 for all types or IEC60870-5-103 except GRD150

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GRL100

GRC100

GRT100

GRL100

GRZ100

GRL150 GRB100

GRD110

GRD130

GRD150 GRB150

or GRD140

GRT100

GRB150

GRB150 EHV

LV HV

Transmission line

APPLICATION EXAMPLES

GRL100, GRZ100, GRL150

Line protection

GRC100

Breaker failure protection

GRT100

Transformer protection or Reactor protection

GRB150

Busbar protection (High-impedance differential)

GRB100

Busbar protection (Low-impedance differential)

GRD110-140

Feeder protections

GRD150

Feeder manager relay

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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

The terminal blocks are located at the rear of the relay providing

connections for all input and output circuits

HARDWARE

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

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

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

METERING AND RECORDING

Transformer

module

Signal processing module

Human machine interface

Current

DC supply Input Output Remote PC

Voltage

External

clock

Local PC

Binary input output module

-CT

-VT

-IRIG-B

-LCD -LED -Operation key -RS232C I/F

-Analog filter -A/D converter -MPU

-DC/DC converter -Binary input -Binary output (trip) -Binary output (signal) -RS485

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Fig.1 Hardware block diagram

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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

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

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

USER INTERFACE

Fig.2 Relay setting and monitoring system

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PROTOCOL CONVERTOR G1PR2 (Option)

1 4

COMMUNICATIONS NETWORK

1 2 32

97 98 128

RS232 RS232

TOSHIBA TOSHIBA

Metering 1

TOSHIBA

Metering 1

TOSHIBA

129 130

160

TOSHIBA 5

TOSHIBA

225 226

256 8

TOSHIBA

OPTICAL/RS485 INTERFACE

TOSHIBA TOSHIBA

TOSHIBA

OPTICAL/RS485 INTERFACE

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PC DISPLAY

Fig.2 Relay setting and monitoring system

Metering

Vector record

Data analysis Event record

Fault record

Relay Setting

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

Configurable Binary Output Contacts

GR-relays provide programmable binary output contacts The number of outputs varies according to the relay type

Binary Inputs

GR-relays provide programmable binary inputs

The number of inputs 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

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The following data varies according to the relay type The detailed data could be referred to each brochure

of the relay type

TYPICAL TECHNICAL DATA

Relay Case Type-A

Relay Case Type-B

Relay Case Type-C

Relay Case Type-E

Relay Case Type-D

Ratings

AC current I n :

AC voltage V n : 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:

Binary input circuit:

Communication port - local PC (RS232)

Connection:

Cable type:

Cable length:

Connector:

Communication port - remote PC (RS485 for IEC60870-5-103 or RSM)

Connection:

Cable type:

Cable length:

Connector:

Isolation:

Transmission rate:

Communication port - remote PC (Fibre Optic for IEC60870-5-103)

Cable type:

Cable length:

Connector:

Transmission rate:

Communication port - Substation Automation Systems (IEC61850)

Ethernet LAN Interface

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 Point to point

Multi-core (straight) 15m (max.) RS232C 9pin D-subminiature connector female Multidrop (max 32 relays)

Twisted pair cable 1200m (max.) Screw terminals 1kVac for 1 min.

64kpbs for RSM system 9.6, 19.2kbps for IEC60870-5-103 50/125 or 62.5/125 μm fibre 2km (max.)

ST type connector 9.6, 19.2kbps for IEC60870-5-103 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

RELAY CASE

A or B

A or B D B A C C C C D D D E

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

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