Product Short Description
Product Overview
G650BFBF2G0HI is a high-performance digital generator protection and control relay from GE Multilin’s G650 series, engineered for the protection, control, and monitoring of synchronous and asynchronous generators in utility, industrial, and commercial power systems. It integrates comprehensive generator-specific protection functions, precise metering, advanced control logic, and robust communication capabilities into a modular, draw-out chassis, delivering high-speed fault detection and isolation to safeguard generators, prime movers, and associated switchgear. The device features a dual-display setup (basic and enhanced graphical HMI with front USB), flexible I/O expansion, and multi-protocol communication support including IEC 61850 Edition 2, Modbus, and DNP 3.0. It incorporates a powerful 32-bit RISC processor with a control logic scan cycle ≤1ms and fault response time ≤1 cycle (60Hz), ensuring rapid safety actions during electrical anomalies. It serves as a central component in generator automation, enabling synchronizing, load sharing, and protection against stator/rotor faults, unbalanced loads, and under/over excitation to maximize generator uptime and stability while complying with global industrial safety and communication standards.
Description
Technical Specifications
- Manufacturer: GE Vernova (Multilin Product Line)
- Product Series: Multilin G650 Generator Protection & Control Relay
- Model Configuration (G650BFBF2G0HI):
- HMI: Basic Display + Enhanced Graphical Display with front USB, single-line diagram support
- Communication: Rear Serial Comm Board (F), 10/100 Base TX Ethernet
- I/O Modules: Slot F (8 DI + 8 DO + 2 Trip/Close Supervision), Slot G (0 = No I/O Module)
- Auxiliary Power: HI Range (88-300 VDC, 96-250 VAC)
- Protection Package: Core Generator Protection (stator, rotor, reverse power, under/over voltage/frequency)
- Protection Core:
- Processor: 32-bit RISC; Control Logic Scan Cycle ≤1ms; Fault Response Time ≤1 cycle (60Hz)
- Event Recording: 1024 time-tagged events (1ms resolution); Oscillography: 5 seconds max sample rate
- I/O Specifications:
- Digital Inputs: 8 (from Slot F)
- Digital Outputs: 8 (from Slot F)
- Trip/Close Supervision: 2 circuits (Slot F)
- Analog Inputs: Configurable via expansion; CT/VT inputs for current/voltage sensing
- Metering Accuracy:
- Current/Voltage: ±0.2% of full scale
- Power: ±0.5% of full scale
- Energy: ±0.5% of full scale
- Communication Protocols:
- IEC 61850 Edition 2, IEC 60870-5-103/104, IEC 62439/PRP/HSR
- Modbus RTU/TCP, DNP 3.0, IEEE 1588 (PTP), IRIG-B, SNTP
- Physical & Environmental:
- Dimensions: 24.1 cm × 26.7 cm × 20.3 cm (9.5×10.5×8.0 inches); Weight: 4.6 kg (10 lbs 0.8 oz)
- Mounting: 19-inch rack, draw-out modular design
- Operating Temperature: -40°C to +70°C (-40°F to +158°F)
- Storage Temperature: -40°C to +85°C (-40°F to +185°F)
- Environmental Rating: IP20 (indoor); Conformal Coating Option available
- Certifications: IEC 61850 Edition 2 compliant; UL, CE, ATEX certified
Functional Features
- Comprehensive Generator Protection: Stator overcurrent/ground fault; rotor overcurrent/earth fault; reverse power; under/over voltage; under/over frequency; loss of excitation; out-of-step protection; 2nd harmonic restraint for transformer protection; CT/VT supervision.
- High-Speed Fault Handling: Detects and isolates faults within ≤1 cycle (60Hz), minimizing generator and prime mover damage.
- Flexible Control Logic: Synchronizing check; auto-synchronization; load sharing; breaker control with cold load pick-up; emergency stop logic.
- Advanced HMI & Data Management: Enhanced graphical display with USB data export; event logs and waveform capture for root-cause analysis; 1ms time-tagging for precise event sequencing.
- Modular & Scalable Design: Draw-out construction enables hot-swapping of I/O modules without system shutdown; configurable I/O adapts to varying generator configurations.
- Multi-Protocol Communication: Supports IEC 61850, Modbus, DNP 3.0, and IEC 60870-5-103/104 for seamless integration with SCADA and third-party automation systems.
- Precise Time Synchronization: IEEE 1588 (PTP), IRIG-B, and SNTP for accurate event timestamping and coordinated system operation.
- Embedded Automation: Custom logic programming for arc flash detection, generator interconnect protection, and load management.
Functional Advantages
- Integrated Protection & Control: Combines generator-specific protection, control, and metering in one device, reducing hardware count and installation costs.
- Maximized Generator Uptime: High-speed fault isolation and auto-synchronization minimize downtime and improve power supply reliability.
- Simplified Maintenance: Modular design and advanced diagnostics reduce troubleshooting time and replacement effort.
- Enhanced Data Visibility: Real-time metering, waveform capture, and event logs enable proactive maintenance and performance optimization.
- Seamless Integration: Multi-protocol support ensures compatibility with legacy and modern power automation systems.
- Customizable Solutions: Flexible I/O and logic programming adapt to unique generator and substation requirements.
- Cost Efficiency: Reduces installation time and hardware investment, lowering total cost of ownership over the device lifecycle.
Application Scenarios
G650BFBF2G0HI is ideal for a wide range of generator protection and control applications, including:
- Utility Power Plants: Protection of synchronous generators in thermal, hydro, and nuclear power plants, ensuring grid stability and reliable power delivery.
- Industrial Power Systems: Protection of backup and prime power generators in manufacturing plants, refineries, and chemical facilities.
- Commercial & Institutional Buildings: Generator control in data centers, hospitals, and large commercial complexes, safeguarding critical loads during grid outages.
- Renewable Energy Integration: Protection of generators in solar, wind, and other renewable energy systems, ensuring grid compatibility and safety.
- Transmission & Distribution Automation: Load shedding and fault location for improved system efficiency and reduced outage duration.
- Critical Infrastructure: Protection of generators in water treatment plants, wastewater facilities, and transportation systems, maintaining continuous operation of essential services.
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