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

  1. Directional or non-directional overcurrent and earth fault protection

  2. Sensitive directional or non-directional earth fault protection

  3. Undercurrent protection

  4. Directional or non-directional negative sequence overcurrent protection

  5. Negative sequence overvoltage protection

  6. Thermal overload protection

  7. Under- and over-voltage protection

  8. Under- and over-frequency protection

  9. Rate-of-change of frequency

  10. Broken conductor detection

  11. Circuit breaker failure protection

  12. Cold load protection

  13. Voltage controlled overcurrent protection

  14. Switch on to Fault

DMulti Function Protection IED GRD200 Products Image

Control functions

  1. Autoreclose (up to 5 shot)

  2. Synchronism voltage check

  3. Circuit breaker and isolator control

  4. Switchgear interlock check

  5. Metering and recording functions

Metering and recording functions

  1. Metering
    - Power system currents, voltages, power, frequency and power factor

  2. Recording
    - Event record
    - Fault record
    - Disturbance record

Communication Protocols

  1. Communications with substation automation system IEC 61850-8-1 (Ed 1.0 and Ed 2.0) or IEC 60870-5-103

  2. Communications with process level equipment (Merging Unit) IEC 61850-9-2.

  3. Ethernet redundancy protocol IEC62439-3 PRP/HSR/RSTP

Time Synchronization

  1. 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:

  1. Port and protocol control for IEC 61850 communication

  2. Complexed password for extra security user authentication

  3. Security events log

  4. Encrypted communication between GR-TIEMS and IED (Optional)

  5. Role-based Access Control (RBAC), based on NERC-CIP, IEC 62351 and IEEE 1686 (Optional)

Human interfaces

  1. Selection of HMI: Standard LCD, large LCD

  2. 24 configurable tri-state LEDs selectable red/green/yellow

  3. 7 programmable function keys for user demand operation

  4. Personal computer interface (USB and Ethernet ports)

  5. Monitoring jacks for internal circuit test