GE F650BFBF1G0HI Multilin F650 Feeder Protection Relay

The GE F650BFBF1G0HI is a high-performance feeder protection relay from the Multilin F650 series, designed to deliver comprehensive protection, control, and automation for electrical distribution systems. This advanced relay combines sophisticated protection algorithms with flexible I/O configuration, high-speed communication, and integrated automation capabilities. The F650BFBF1G0HI is an ideal solution for utility distribution networks, industrial power systems, and applications requiring advanced feeder protection and automation.

Protection Features

The F650BFBF1G0HI provides comprehensive protection for distribution feeders. Phase and ground overcurrent protection features selectable time-current curves including IEEE, IEC, and custom curves, enabling precise coordination with other protection devices. Directional overcurrent capability allows selective fault detection in looped or networked distribution systems. Voltage protection includes overvoltage, undervoltage, and overfrequency/underfrequency functions. The relay also includes breaker failure protection and programmable automatic reclosing with up to four independent shots.

Metering and Monitoring

The relay provides extensive metering and monitoring capabilities:

• Three-phase currents and voltages with high accuracy

• Active, reactive, and apparent power measurements

• Power factor and frequency measurement

• Energy metering (kWh, kvarh)

• Harmonic analysis up to the 31st order

• Demand and peak demand recording

• Sequence of events recording with 1 ms resolution

Technical Specifications

• Power Supply: 24-48 V DC or 110-250 V DC, 100-240 V AC

• Current Inputs: 1 A or 5 A CT secondary, configurable per channel

• Voltage Inputs: Up to 690 V AC directly or via PTs

• Frequency Range: 50/60 Hz, auto-sensing

• Digital Inputs: 16 configurable, wet or dry contact

• Relay Outputs: 10 form-C contacts, high current interrupting

• Analog Outputs: 2 (4-20 mA) for process retransmission

• Communication: RS-485 Modbus RTU, Ethernet, IEC 61850

• Display: Large graphical LCD with backlight and keypad

• Operating Temperature: -40°C to +85°C

• Protection Rating: IP40 (front panel), IP20 (rear)

Communication and Automation

The F650 supports advanced communication and automation capabilities. Standard protocols include Modbus RTU and TCP, DNP 3.0, and IEC 60870-5-103. Optional IEC 61850 support enables integration into modern substation automation architectures with GOOSE messaging and SCL configuration. The relay includes programmable logic for automation functions, allowing local control actions without SCADA intervention. Front and rear communication ports enable connection to both local and remote systems.

Advanced Diagnostics and Fault Recording

The relay incorporates advanced diagnostic capabilities including waveform capture, event recording, and oscillography. Waveform capture records pre-fault and post-fault current and voltage waveforms for detailed fault analysis. The event recorder stores time-stamped records of all protection operations, parameter changes, and system events. Sequence of events recording with high-resolution time stamps enables accurate reconstruction of fault sequences. The relay also includes demand logging and load profile recording for long-term trend analysis.

Applications

The GE F650BFBF1G0HI is suitable for advanced distribution protection applications:

• Utility distribution feeder protection and automation

• Industrial plant power distribution systems

• Substation feeder protection and control

• Distributed generation interconnection protection

• Microgrid protection and control

• Smart grid automation applications

User Interface and Configuration

The F650 features a large graphical LCD display with intuitive menu navigation, providing access to measured values, protection settings, and diagnostic information. Configuration is performed using GE Multilin configuration software, which provides advanced tools for setting protection parameters, defining logic schemes, and managing configuration files. The software supports offline configuration, enabling setup before relay installation. The relay includes multiple password protection levels to prevent unauthorized changes.

Certifications

The F650BFBF1G0HI complies with IEC 60255, ANSI C37.90, and IEEE standards for protective relays. It meets CE, UL, and CSA requirements for industrial control equipment. The relay is manufactured under ISO 9001 quality management systems and is designed for long-term reliability in demanding substation and industrial environments.