GE Multilin F650-N-F-B-F-2-G-0-HI-6E Distribution Line Integrated Protection and Monitoring Device

GE Multilin F650-N-F-B-F-2-G-0-HI-6E
Complete product profile: Feeder Comprehensive Protection Monitoring Device (Digital Interval Controller)
I. Basic Overview
Brand： GE Vernova (formerly GE Multilin， a well-established power relay protection brand of General Electric， USA)
Full device name： F650 Distribution Feeder Comprehensive Protection Monitoring Device / Digital Interval Controller (Feeder Protection Relay & Bay Controller)
Core purpose： Complete protection for 10kV/35kV substation distribution lines， electrical measurement and control， power metering， fault recording， local / remote automatic interlock control for circuit breakers， widely used in urban distribution networks， plant power supply， rail transit， petrochemical power plants， and station feeder interval monitoring and protection
Life cycle： The original factory has completely stopped production， no new original factory futures available； market supply sources are all original and brand-new inventory spare parts， and refurbished complete machines from disassembly and maintenance (supply status as of 2026)

 Detailed Interpretation of the Complete Order Code (F650-N-F-B-F-2-G-0-HI-6E) Table
Segmentation of coding Code Official standard definition
Prefix F650 Product series: Feeder-specific protection and monitoring host
1 N CPU firmware version: Standard feeder complete protection core, integrating overcurrent, grounding, reclosing, and all feeder protection logic against islanding
2 F Human-machine interface: IEC power standard graphic color large screen, capable of drawing primary main wiring single-line diagrams and real-time display of power grid operation parameters
3 B COM1 communication board: Dual redundant RS485 serial ports, Modbus RTU master-slave protocol
4 F COM2 communication board: Redundant plastic optical fiber communication interface, anti-electromagnetic interference, suitable for strong electromagnetic environment wiring in substations
5 2 Local I/O backplane configuration: 8 digital input DI + 6 relay digital output DO + 2 trip circuit break monitoring (to prevent protection malfunction)
6 G Voltage connection standard: Three-phase four-wire 3PT + 3CT universal wiring, suitable for most domestic and overseas power distribution systems
7 0 Expansion I/O slot: No external remote CIO distributed I/O module
8 HI Device auxiliary power supply: Wide-range AC/DC universal power supply
AC 110~230V / DC 110~250V (88~300V full compatibility)
9 6E Hardware & system suffix:
6 = Hardware motherboard version Rev.6; E = English operating system interface, with CE, UL complete set of international industrial safety certifications

 Core hardware electrical parameters
Power consumption: Static power consumption of the entire machine ≤ 12W
Switching quantity points: 8 digital input DI without remote signal, 6 digital output DO for normal outlets + 2 trip circuit break monitoring (to prevent protection malfunction)
Communication interfaces
Front panel RS232 debugging port: Compatible with EnerVista software for setting protection values, uploading and downloading fault data
Dual redundant RS485, plastic optical fiber dual-channel communication, supporting Modbus RTU
Optional compatibility with IEC60870-103, IEC61850 power protocol (firmware can be configured)
Structural installation: 1/2 19-inch standard cabinet frame, 6U height, drawer-type plug-in modular structure, convenient for maintenance and replacement
Environmental tolerance: Working temperature -25℃ ~ +55℃; Indoor control cabinet installation, IP30 protection level; Meeting strict EMC electromagnetic compatibility standards of the power industry

Complete protection functions (standard configuration)
1. Line fault main protection
Time-limited / reverse-time phase-to-phase overcurrent, instantaneous overcurrent, voltage locked overcurrent protection
Ground fault, sensitive grounding, directional grounding protection; Four-stage adaptive automatic reclosing (with同期 verification)
Overvoltage， undervoltage， low frequency / high frequency， frequency slip protection
2. Measurement and control with auxiliary functions
Real-time measurement： Three-phase voltage， current， power， power factor， frequency， harmonic， cumulative energy metering
Fault recording： Store 20 sets of fault process waveforms； SOE event sequence record (479 entries with millisecond-level timestamp)
IEC61131-3 programmable logic PLC， can customize bus interlock， automatic backup， load shedding logic
Trip circuit monitoring， CT/PT break alarm， circuit breaker failure protection， arc flash fault detection