GE F650BABF1G0H1 Feeder / Interval Integrated Protection and Monitoring Device

I. Basic Information
Brand: GE Multilin
Model: F650BABF1G0H1 (Standard abbreviation: F650)
Product Type: Distribution feeder protection, integrated interval measurement and control device, widely used in 10kV – 35kV lines, plant power supply, capacitors, motors, transformers backup protection scenarios
Installation Method: 1/2 19-inch standard plug-in type panel installation, front cover protection IP54, back panel IP20
Official Manual: GEK-113000 (Complete English User Manual for F650), Debugging Software: EnerVista
Power Supply Specifications: Wide-range general-purpose power supply 110~250VDC / 70~265VAC, total machine power consumption approximately 30W

Model Code Segmentation Analysis (F650-B-A-B-F-1-G-0-H1)
B: Current input specification: CT secondary rated 5A
A: Voltage input: PT 100V, three-phase voltage acquisition
B: Basic protection hardware configuration, standard configuration includes directional overcurrent, zero sequence, voltage frequency complete protection
F: F slot I/O configuration: 16 passive switch input DI + 8 relay output DO
1: Number of setting zones: 4 independent switchable setting zones
G: G slot no expansion I/O module
0: No arc protection, no fiber optic communication expansion
H1: With local LCD display screen + operation keys, can view parameters, faults, setting values locally

Core ANSI Standard Protection Functions
1. Phase-to-phase fault protection
51P time-limited / anti-time-limited phase-to-phase overcurrent, 50P phase-to-phase instantaneous short-circuit
67P directional phase-to-phase overcurrent (necessary for ring network, dual power supply lines)
46 negative sequence overcurrent protection (three-phase imbalance, phase loss, inter-turn fault)
2. Ground fault protection
51N/50N zero sequence time-limited, instantaneous ground overcurrent
67N directional zero sequence overcurrent, sensitive ground fault protection (small current grounding system)
3. Voltage & Frequency Class Protection
27 low voltage protection, 59 overvoltage protection, 59N zero sequence overvoltage
81U/81O low frequency / high frequency protection, ROCOF frequency change rate anti-islanding, low voltage low frequency load shedding
4. Auxiliary Advanced Functions
Breaker failure protection, three-phase one-time reclosing, backup auto-switching logic
Load monitoring, harmonic measurement, energy metering, thermal overload protection
FlexLogic programmable logic, customizable interlock, trip blocking, remote activation/deactivation protection

Hardware Interfaces and Communication Configuration
Analog Input: Three-phase current, three-phase voltage, zero sequence current
Switching Quantity: 16 remote signal DI, 8 trip/alarm relay DO
Communication Interface
Front panel RS232: Local computer debugging, firmware upgrade
Back panel dual-channel isolated RS485 (Modbus RTU, DNP3)
1 channel 10/100M Ethernet (Modbus TCP, IEC 60870-104)
Data Recording Capability
SOE millisecond-level event sequence recording, fault recording (multiple cycle waveform storage before and after faults)
First fault occurrence memory, power consumption statistics, demand monitoring, harmonic analysis (up to 21 times)

Typical Application Scenarios
10kV, 35kV incoming and outgoing lines of substations, ring network lines main protection
Backup protection for plant high-voltage motors, capacitors, station transformers
Self-owned power plants, distributed photovoltaic grid connection anti-islanding, low frequency low voltage separation protection
Industrial metallurgy, chemical industry, thermal power distribution room interval measurement and control, backup auto-switching interlock control