Product/Technical Services
Line Differential Protection for Direct Fibre & Pilot-wire Application GRW200
Product Overview
GRW200 is advanced numerical feeder differential protection IED implemented on Toshiba's next generation GR-200 series platform. GRW200 is designed to provide phase-segregated line differential protection for use with metallic pilot wire or direct fibre optic communication channels. This powerful and user-friendly IED will provide you with the flexibility to meet your application and engineering requirements in addition to offering excellent performance, outstanding quality and operational peace of mind.
High accuracy, phase-segregated line differential protection for use over metallic pilot wire or direct fibre optic communication channels suitable for protection of short overhead line or cable circuit
Overcurrent guard scheme, integrated channel monitoring, magnetizing inrush detection, and various range of back-up protection functions
Multiple communication protocol for easy integration with substation automation system such as IEC 61850, IEC 60870-5-103, MODBUS/TCP and IEC 62439-3 PRP/HSR
Technical Description
Protection Functions
Phase-segregated Line Current Differential Protection
Supervision of Protection Signal
Overcurrent Guard scheme for Differential Protection
Phase Fault Overcurrent Protection
Earth Fault Protection
Sensitive Earth Fault Protection
Phase Undercurrent Protection
Thermal Overload Protection
Switch On to Fault (SOTF) Protection
Broken Conductor Protection
Circuit Breaker Fail (CBF) Protection
Inrush Current Detector
Cold Load Protection
Control Functions
Switchgear Control
IED Mode Control
Interlock Check
Programmable Logic Control (PLC)
Monitoring Functions
Trip Circuit Supervision
Automatic self-supervision
Circuit Breaker Contact Supervision
Circuit Breaker Condition Monitoring
General Functions
Eight settings groups to cover various operating conditions
Time synchronization by external clock via SNTP or using IRIG-B
Password protection for settings and selection of local/remote control
Simulation and test function to check protection/control function
Internal circuit checks using forcible signal
Metering and recording functions
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Metering
Local/Remote terminal current, differential current, positive & negative phase sequence current.
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Recording
Event Record up to 1024 events
Fault Record up to 32 faults
Disturbance Record
Hardware Flexibility
Various models and hardware options for flexible application depending on system requirement and controlled object
Configurable binary inputs and outputs
Communication Interface
Various option of system interface - RS485, fibre optic 100BASE-FX, 100BASE-TX/1000BASE-TX
Support for multiple communication protocol - IEC 61850 (Ed 1.0 and 2.0), IEC 60870-5-103, MODBUS/TCP, IEC 62439 PRP/HSR/RSTP
Cyber Security
Extensive cyber security features:
Port and protocol control
Complexed password for extra security user authentication
Security event logging
Encrypted communication between GR-TIEMS and IED (Optional)
Role-based Access Control (RBAC) based on IEC 62351-8 (Optional)
Human Interface
21 Character width, 8 Line LCD with backlight
14 LEDs (2 pre-configured LEDs + 12 configurable LEDs)
5 programmable function keys for user demand operation
Personal computer interface (USB 2.0 port and Ethernet ports)
Relay setting and configuration using GR-TIEMS Software
Line Differential Protection for Direct Fibre & Pilot-wire GRW200
