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ABB PFSA140 3BSE006503R1 High-reliability field power supply module
echnical Specifications
- Function: Fiber optic transmitter (converts electrical signals to optical signals)
- Wavelength: 820 nm (typical), optimized for multimode fiber transmission
- Fiber Type: Compatible with multimode fiber cables (e.g., 62.5/125 µm or 50/125 µm)
- Transmission Distance: Up to 2 kilometers depending on fiber quality and system configuration
- Data Rate: Supports high-speed digital signal transmission, typically up to 10 Mbps
- Input Signal: TTL or differential electrical signals from control electronics
- Output Signal: Modulated optical signal for transmission over fiber
Detailed content
- Supply Voltage: +5 V DC (standard)
- Operating Current: Approximately 50 mA under normal conditions
- Isolation Voltage: Greater than 50 kV (impulse withstand), providing robust galvanic isolation
- Operating Temperature Range: -25°C to +70°C
- Storage Temperature Range: -40°C to +85°C
- Protection: Integrated overvoltage and overcurrent protection on power supply lines
Functional Features
- High-Reliability Signal Transmission: Ensures accurate delivery of critical control signals such as thyristor firing pulses in HVDC valves.
- Electromagnetic Interference Immunity: Fiber-based communication eliminates risks from EMI/RFI, crucial in high-voltage substations and converter stations.
- Galvanic Isolation: Provides complete electrical separation between low-voltage control circuits and high-voltage power sections, enhancing system safety and stability.
- Compact and Rugged Design: Engineered for integration into confined spaces within valve halls and control cabinets.
- Real-Time Performance: Enables low-latency transmission of time-critical signals for precise power electronics control.
- System Compatibility: Works in conjunction with ABB’s optical receiver modules such as PFFB, PFRI, and PFTO to form complete optical communication links.
- Diagnostic Capabilities: Supports monitoring of signal integrity and link health for predictive maintenance and fault detection.
Application Scenarios
- HVDC Transmission Systems: Transmits firing commands from the control system to thyristor or IGBT valves in converter stations.
- Static Var Compensators (SVC) and STATCOM: Used in valve control units to ensure fast and accurate reactive power regulation.
- Thyristor Valve Triggering: Core component in pulse distribution units for high-power rectifiers and inverters.
- High-Voltage Substations: Facilitates isolated communication between control rooms and high-voltage equipment.
- Industrial Power Conversion: Applied in large motor drives, rolling mill drives, and electrolysis plants requiring isolated digital signaling.
- Renewable Energy Infrastructure: Utilized in grid interface systems for offshore wind farms and large-scale solar installations where signal integrity is critical.
