GE F650BFBF2G0HIE Feeder Protection Relay

Technical Specifications CT input:1A/5A adaptive; PT input:100V; Power supply:24‑125V DC /110‑250V AC Accuracy:±0.5% full scale; Communication:RS232, RS485, Ethernet; Protocols:Modbus, DNP3, IEC61850 Operating temperature:‑40℃~+70℃; Storage temperature:‑40℃~+85℃; Humidity:5‑95% non‑condensing Mounting:panel cut‑out mounting; Front protection grade:IP30

Functional Features Provides phase overcurrent, ground fault, over‑voltage, under‑voltage and breaker failure protection. Supports auto‑reclosing and FlexLogic custom interlock. Stores event sequence and oscillography records. Front LCD for local setting; LED status indicators.

Application Scenarios Medium‑voltage feeder protection for utility substations and industrial power plants. Bay control for switchgear bays. Spare replacement unit for substation maintenance projects.

Performance Parameters Fault response time below 50ms. Stable RMS measurement. Large non‑volatile memory for fault data. Reliable contact switching performance.

Material Composition Flame‑retardant ABS housing. Multilayer glass‑fiber epoxy conformal coated PCB. Sampling transformers, DSP chip, relay assemblies, screw terminals, LCD module and metal mounting hardware.

Structural Characteristics Integrated panel‑mount enclosure. Front side equips LCD, keypad and LED indicators. All wiring terminals locate on rear side. Modular internal hardware. Lockable transparent front cover.

Working Principle CT/VT secondary signals enter rear terminals. Isolation circuits convert signals for DSP sampling and protection calculation. Trip relay outputs activate when thresholds are exceeded. Binary inputs collect breaker status. Data transfers to SCADA via communication ports.

Installation Requirements Disconnect CT, VT and power supply before installation. Fix unit into cabinet panel cut‑out. Complete wiring strictly per official diagrams. Restore power, download parameters, perform I/O loop test and calibration before commissioning.

Usage Notes Never open energized CT secondary loops. Avoid over‑range input signals. Keep cabinet ventilation. Anti‑static handling for internal modules. Regularly check terminal screw torque.