The GE Multilin 650 (Model: F650BABF1G0LOC) is a high-performance Digital Protection and Control Relay designed for the management of feeder, transformer, and motor protection in industrial and utility power systems. Renowned for its reliability in marine and industrial electrical infrastructure, this unit provides advanced protection, automation, and metering capabilities to ensure the integrity of critical power circuits. It is specifically built to withstand harsh environments while delivering high-speed fault detection and programmable control logic.
Product Specifications
| Feature | Specification |
| Model | F650BABF1G0LOC |
| Device Type | Feeder Protection System |
| Dimensions | 240 mm x 240 mm x 280 mm |
| Weight | Approximately 5.5 kg |
| Origin | USA / Canada |
| Communication | Ethernet (10/100BaseT), RS485, Modbus TCP/IP |
| Input Voltage | Wide-range AC/DC power supply (typically 88-300VDC/70-265VAC) |
| Protection Class | IP54 (Front panel) |
Application Areas
The F650 is engineered for versatile deployment in power systems:
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Feeder Protection: Monitoring and protecting distribution feeders against overcurrent, short circuits, and ground faults.
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Transformer Management: Providing comprehensive protection for medium-to-large power transformers.
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Motor Control: Offering specialized protection for medium-voltage motors, including thermal modeling and start-up monitoring.
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Power Quality Monitoring: Tracking harmonic levels and power factor to optimize electrical system performance.
Product Usage Guide
The F650 is designed for panel mounting with a draw-out chassis for easy maintenance. Connect current transformers (CTs) and potential transformers (PTs) to the rear terminal blocks according to the specific wiring diagram provided in the user manual. Once powered, use the EnerVista 650 Setup software (via Ethernet or USB) to program the relay logic. Configuration involves defining protection curves (IEEE/IEC), setting communication addresses for SCADA integration, and mapping the digital I/O for alarm handling. During commissioning, perform a secondary injection test to verify that the trip and alarm settings function correctly before putting the relay into service.
Frequently Asked Questions (Q&A)
What does the specific model code “F650BABF1G0LOC” signify? This string is a configuration code that details the hardware build, including the number of analog inputs/outputs, the communication ports installed, and the power supply rating. Is the relay “Hot-swappable”? Yes, the draw-out design allows the control module to be removed for inspection or replacement without disturbing the field wiring connected to the rear terminal block. How do I clear a “Trip” event? Events can be reset via the front keypad, digital input, or remote SCADA command once the underlying fault has been rectified and confirmed. Can this relay communicate with my existing PLC? Yes, the F650 supports multiple protocols, including Modbus TCP/IP and DNP 3.0, making it highly compatible with most modern PLC and HMI systems. How is the internal clock synchronized? The unit supports IRIG-B time synchronization or NTP via the Ethernet port, ensuring accurate time-stamping for all sequence-of-event (SOE) recordings.
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