Product/Technical Services

Bay Control IED GBU200

Product Overview

The GBU200 bay control IED has been designed to provide bay control and protection functions for application to transmission lines and distribution feeders in all types of network. The GBU200 provides functions for the control and monitoring of switchgear, transformer and other equipment in EHV, HV, MV and LV substations. It can also support feeder protection functions such as directional overcurrent and earth fault protections within the flexible and user-friendly GR-200 Series platform.


Technical Description

Control functions

  1. Circuit breaker and isolator control

  2. Switchgear interlock check

  3. Transformer tap change control

  4. Synchronism voltage check between different networks

  5. Programmable automatic sequence control

  6. Manual override

  7. Transducer input (DC-AI)

  8. Transducer output (DC-AO)

  9. Power quality monitoring (option)

  10. Autoreclose (upto 5 shot)

Bay Control IED GBU200 Products Image

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 fail

  12. Cold load protection

  13. Voltage controlled overcurrent

  14. Switch on to Fault

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​

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 communication port per IED Max. 2 ports (redundancy options: PRP/HSR)​

Cyber Security​

Extensive cyber security features:

  1. Port and protocol control​

  2. Complexed password for extra security user authentication​

  3. Security event logging​

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

  5. Role-based Access Control (RBAC) based on IEC 62351-8 (Optional)​

Human interfaces

  1. Selection of HMI: Standard LCD, large LCD or separate 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