Product/Technical Services
Multi Function Protection IED GRD200
Product Overview
The GRD200 multi-function IED has been designed to provide a comprehensive protection and control solution for distribution feeders, while also being applicable as a back-up protection for transmission lines, power transformers and other electrical plant. Its multiple, high-accuracy overcurrent protection elements can be independently subject to directional control, while a range of other protection functions can also be selected for thermal overload, under/overvoltage, under/over frequency, circuit breaker failure and voltage controlled overcurrent applications. Optional bay control and monitoring functions are also provided within the flexible and user-friendly GR-200 Series platform.
Technical Description
Protection functions
Directional or non-directional overcurrent and earth fault protection
Sensitive directional or non-directional earth fault protection
Undercurrent protection
Directional or non-directional negative sequence overcurrent protection
Negative sequence overvoltage protection
Thermal overload protection
Under- and over-voltage protection
Under- and over-frequency protection
Rate-of-change of frequency
Broken conductor detection
Circuit breaker failure protection
Cold load protection
Voltage controlled overcurrent protection
Switch on to Fault
Control functions
Autoreclose (up to 5 shot)
Synchronism voltage check
Circuit breaker and isolator control
Switchgear interlock check
Metering and recording functions
Metering and recording functions
Metering
- Power system currents, voltages, power, frequency and power factorRecording
- Event record
- Fault record
- Disturbance record
Communication Protocols
Communications with substation automation system IEC 61850-8-1 (Ed 1.0 and Ed 2.0) or IEC 60870-5-103
Communications with process level equipment (Merging Unit) IEC 61850-9-2.
Ethernet redundancy protocol IEC62439-3 PRP/HSR/RSTP
Time Synchronization
Time synchronization with external clock server by SNTP, IEEE 1588, and IRIG-B
Process Bus (Client)
| Supported Sample Value Stream | 4800Hz ASDU 2 (60Hz x 80sp or 50Hz x 96sp) 4800Hz ASDU 1 (50Hz x 96sp) 4000Hz ASDU 1 (50Hz x 80sp) |
|---|---|
| Max. number of analog channel per stream | 8 |
| Max. number of stream | 4 |
| Max. number of Process Bus Com Port per IED | Max. 2 ports (redundancy options: PRP/HSR) |
Cyber Security
Extensive cyber security features:
Port and protocol control for IEC 61850 communication
Complexed password for extra security user authentication
Security events log
Encrypted communication between GR-TIEMS and IED (Optional)
Role-based Access Control (RBAC), based on NERC-CIP, IEC 62351 and IEEE 1686 (Optional)
Human interfaces
Selection of HMI: Standard LCD, large LCD
24 configurable tri-state LEDs selectable red/green/yellow
7 programmable function keys for user demand operation
Personal computer interface (USB and Ethernet ports)
Monitoring jacks for internal circuit test
