Description
The GE Multilin F650BABF1G0HI is a microprocessor-based Feeder Protection Relay and Bay Controller from GE’s Multilin F650 family. Designed for distribution feeders, substation automation, and industrial power management, the F650 combines comprehensive protection functions (overcurrent, directional, voltage, frequency) with integrated breaker control, metering, and high-speed communication interfaces.
Key Specifications & Order Code Breakdown
| Attribute | Details |
| Manufacturer | GE Grid Solutions / GE Multilin |
| Model Family | Multilin F650 Series |
| Ordering Code | F650BABF1G0HI |
| Application | Feeder Protection, Bay Control, Distribution Automation |
| Current / Voltage Inputs | Phase CTs (1A/5A dual rated), Ground CT, VT inputs for voltage & frequency |
| Protection Elements | 50/51, 50N/51N, 67/67N, 27/59, 81O/81U, 25 (Synchrocheck), 46, 50BF |
| Human Machine Interface (HMI) | Front graphic LCD display, status LEDs, and navigation/control keypad |
| Communication Protocols | IEC 61850, Modbus RTU/TCP, DNP 3.0, PROFINET / Ethernet options |
Primary System Functions
- Comprehensive Feeder Protection: Provides instantaneous and time-delay overcurrent (50/51), directional overcurrent (67/67N), ground fault, thermal overload (49), and breaker failure (50BF) protection functions.
- Integrated Substation Bay Control: Controls circuit breaker trip/close operations with built-in synchrocheck (25), auto-reclosing (79), interlocking logic, and real-time breaker status monitoring.
- Power Quality & Oscillography Recording: Captures sequence-of-events (SOE) logs, fault records, and high-resolution COMTRADE wave files for post-fault analysis and grid troubleshooting.
- Substation Automation Gateway: Integrates seamlessly into SCADA, DCS, or IEC 61850 substation networks via Ethernet and serial communication ports, streaming real-time metering values (V, I, kW, kVAR, Hz, PF).
Servicing & Installation Guidelines
- CT Secondary Circuit Safety: Never open-circuit energized CT secondary leads. Ensure CT shorting blocks are securely engaged prior to disconnecting or swapping the relay.
- Auxiliary Power Verification: Confirm that the cabinet supply voltage matches the internal power supply rating of the relay before applying control power.
- Parameter & Logic File Backup: Before replacing or upgrading an F650 unit, extract the current setting file (
.F650configuration) and programmable logic equations using GE EnerVista F650 Setup software. - Electrostatic Discharge (ESD) Protection: When servicing internal option cards or rear terminal connections, adhere to strict ESD procedures and wear a grounded wrist strap.
