Busbar Protection IED GRB200

The GRB200 low impedance differential relay for busbar protection is designed to provide very reliable, high-speed and selective protection for various types of busbar system. The GRB200 can be applied for single, double and ring busbars with or without transfer busbar, one-and-a-half CB (busbar) system and four bus-coupler busbars. A phase-segregated current differential scheme is employed, which can correctly distinguish between internal and external faults even in the event of CT saturation. GRB200 has two models, for centralized and de-centralized configurations.

1. Metering
   - Power system currents, voltages (option) and frequency (option)

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

1. IEC 61850 (Ed 1.0 and 2.0) or IEC 60870-5-103 for communication with a Substation Automation System

2. IEC62439 PRP/HSR/RSTP for communication redundancy

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)​​

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