GE F650-G-N-A-B-F-2-G-1-HI-C-E – Feeder Protection Relay

Product Summary

The GE F650-G-N-A-B-F-2-G-1-HI-C-E is an advanced feeder protection relay from the GE Multilin F650 series, designed for medium and high-voltage distribution systems. It provides comprehensive protection, control, metering, and automation for utility and industrial power networks. This model supports configurable I/O, multiple communication protocols, and built-in sequence-of-events recording, making it suitable for modern smart-grid and substation automation environments.

Unlike traditional electromechanical protection relays, the F650 series integrates advanced logic, programmable settings, and IEC 61850 support, enhancing grid reliability and operational visibility.

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Features & Functional Highlights

• Feeder protection with overcurrent, thermal, under/overvoltage, frequency, and breaker failure functions

• High-speed trip response and secure fault isolation for utility feeders

• IEC 61850, Modbus, DNP3, and other communication protocols for SCADA integration

• Large front LCD for local metering, event logs, and configuration navigation

• Built-in waveform capture and disturbance recorder

• Cyber-secure settings management with password and role-based access

• Programmable logic for automation (PLC-style ladder logic)

• Redundant power supply options for high availability

• Conformal-coated PCB for harsh substation environment protection

  
  

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Parameters 

Category	Specification
Protection Types	50/51, 50N/51N, 27, 59, 81O/U, 46, 49, 50BF, etc.
Nominal Control Voltage	110–250 V AC/DC (model-dependent)
Current Inputs	1 A or 5 A CT selectable
Digital I/O	Configurable dry-contact inputs & outputs
Communication Ports	RS-485, Ethernet, USB, Fiber (G-version supports IEC 61850)
Time Stamp Accuracy	≤1 ms with IRIG-B GPS synchronization
Operating Temperature	−40°C to +70°C
Display	40-character multi-line LCD
Mounting	Draw-out chassis, panel-mount
Relay Form Factor	19-inch rack or cut-out flush mount

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Structure & Internal Architecture

1. Front HMI Panel – LCD display, keypad, LED indicators for status and alarms

2. Main CPU & Protection DSP – Manages logic and real-time protective algorithms

3. CT / VT Measurement Stage – Accepts analog feeder current & voltage inputs

4. Output Trip Relays – Fast mechanical or solid-state trip contacts

5. Communication Module – Ethernet + serial ports for SCADA/DCS connectivity

6. Field-Replaceable Draw-Out Chassis – Enables relay replacement without rewiring

7. Dual Power Supply (Optional) – Redundant 24 V DC / 125 V DC support

   
   

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Typical Applications

• Utility distribution feeders (primary & secondary substations)

• Industrial MV switchgear and motor control centers

• Renewable energy interconnection protection (solar, wind farm feeders)

• Ring and radial feeder protection in smart grid networks

• Backup or secondary protection for transformer and busbar systems

• IEC 61850 substation automation & GOOSE-based interlocking

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Installation & Commissioning Guidelines

• Install relay in a grounded control panel using the standard 19-inch rack cutout

• Connect CT/VT wiring according to ANSI / IEC terminal labels

• Use GE EnerVista software for configuration, diagnostics, settings upload/download

• Perform primary injection test before energizing feeder

• Validate time synchronization if using SCADA event correlation

• Record baseline oscillography data for future maintenance benchmark

  
  

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Maintenance & Lifecycle Support

• Relay self-diagnostics available via front panel or Ethernet

• Cybersecurity firmware updates supplied by GE Digital Energy portal

• No calibration required—only periodic functional trip testing

• Event logs and SOE records can be exported via USB or Ethernet

• Hot-swappable draw-out chassis allows replacement without shutdown

• Recommended spare inventory: 1 relay per 15–20 feeders in a station

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Additional Notes

• The long configuration code (G-N-A-B-F-2-G-1-HI-C-E) specifies hardware, protocols, I/O count, and power options

• Fully compliant with IEC 61850 Ed.2, IEEE C37.90, and NERC PRC cyber standards

• Supports remote engineering access for digital substations