GE Multilin F650-B-F-G-F-2-G-1-HI-E Digital Feeder Protection & Bay Control Relay

Product Description

F650 is GE Vernova’s flagship multi-functional feeder protection relay for medium-voltage distribution switchgear, integrating full protection, breaker control, bay monitoring, fault recording and multi-protocol communication.

Full Model Code Decoding (F650-B-F-G-F-2-G-1-HI-E)

B: Basic 4×20 character text LCD display

F: No rear serial communication board

G: Redundant glass fiber optic serial interface

F: Standard base I/O configuration

2: 2 analog output channels

G: Rear dual Ethernet communication board

1: 1 digital expansion slot

HI: High voltage power supply (110–250 VAC/VDC)

E: Dual 10/100BASE-TX Ethernet, IEC61850 MMS/GOOSE/PRP/HSR support

This unit adopts high-speed DSP fault calculation core, supports four-shot auto-reclosing, breaker failure, directional overcurrent, sensitive earth fault, voltage/frequency protection and distributed generation anti-islanding logic. Modular draw-out structure, dual redundant fiber + Ethernet communication, millisecond-level fault waveform capture and SOE sequence of event logging, widely used as maintenance spare for power plant, substation, industrial distribution cabinet feeder protection replacement.

Technical Specifications

PN: F650-B-F-G-F-2-G-1-HI-E, Manufacturer: GE Vernova USA

Hardware & Mount

Form Factor: 1/2 19-inch rack, 6U height panel mount draw-out unit

Power Supply: HI high range 110–250 VAC / 110–250 VDC

Display: B type 4-line 20-character backlit text LCD + programmable function keys

Signal & I/O

CT Input: Universal 1A / 5A AC current transformer compatible

VT Voltage Input: 100/120V rated voltage signal

Analog Output: 2 channels 4–20mA analog measuring output

Binary I/O: Configurable digital input / relay trip/output contacts

Communication Interfaces

Serial: Redundant glass fiber optic rear serial bus

Ethernet: Dual 10/100Mbps RJ45 Ethernet (E suffix)

Supported Protocols: IEC61850 Ed2, GOOSE, MMS, PRP/HSR, Modbus TCP, DNP3 TCP, IEC104, Modbus RTU, IRIG-B/PTP IEEE1588 time sync

Protection Functions

Phase/neutral/ground instantaneous & time overcurrent (ANSI/IEC multi-curve)

Directional overcurrent, sensitive earth fault, arc flash fast tripping

Over/under voltage, over/under frequency, ROCOF rate-of-change frequency

Synchrocheck, breaker failure, fuse failure, load shedding, bus interlock

groups programmable auto-reclosing, 3 independent setting groups

Environmental & Performance

Operating Temp: -40℃ ~ +70℃; Storage: -40℃ ~ +85℃

Humidity: 5%–95% non-condensing, EMC meets IEC60255 / IEEE C37.90

Fault Recording: Up to 20 oscillography fault records, 479 SOE event logs

Weight: ~1.6kg; Configuration Software: EnerVista F650 Setup

Key Features

Complete feeder full-range protection suite, suitable for grounding, resonant grounding distribution networks.

Dual redundant glass fiber serial + dual Ethernet dual-layer communication, PRP seamless network switch for substation redundant ring network.

Certified IEC61850 Edition 2, supports GOOSE inter-tripping between bay relays without hard wiring.

High-precision SOE timestamp (1ms resolution) and waveform oscillography for post-fault accident analysis.

Draw-out modular design, quick hot replacement without full switchgear power cut, reduce maintenance downtime.

HI wide-range universal power supply adapts unstable substation DC/AC operating power environment.

Built-in anti-islanding protection for distributed photovoltaic/wind power grid-connected feeders.

Multi-group setting switching, fast mode switching for peak/off-peak, maintenance and fault operation modes.

Application Scope

Medium voltage distribution substation feeder primary/backup protection relay

Thermal power plant auxiliary power station, factory internal distribution cabinet bay controller

Wind farm, photovoltaic station grid-connected line anti-islanding & fault protection unit

Oil & gas refinery, chemical plant hazardous area power distribution safety protection spare

Ring main unit, double busbar, breaker-and-a-half switchgear monitoring control relay

Urban power grid transformation, aging substation relay replacement and spare inventory backup