Description
ABB UFC719AE01 3BHB003041R0001 3BHB000272R0001
Technical Specifications:
- Base Model: UFC719AE01.
- Order Codes: 3BHB003041R0001, 3BHB000272R0001.
- System Type: Excitation Control System.
- Signal Processing: Analog and digital signal conditioning for precise field current regulation.
Functional Features:
- Precise Voltage Regulation: Maintains generator terminal voltage within strict tolerances under varying load conditions.
- Reactive Power Control: Manages the reactive power flow between the generator and the grid.
- Protection Functions: Includes under-excitation and over-excitation limiters to protect the generator from instability.
- Fast Response: High-bandwidth control loops for rapid transient recovery.
Application Scenarios:
- Synchronous generator excitation in power plants.
- Large synchronous motor drives in industrial applications.
- Grid stabilization and voltage support systems.
Material Composition & Structural Characteristics:
- Enclosure: Industrial-grade protective housing.
- Connectors: High-density industrial connectors for field and control wiring.
- Mounting: Standard control rack or panel mounting.
Working Principle:
The module measures the generator terminal voltage and compares it to a setpoint. The error signal is processed through PID control algorithms to generate a firing angle command for the thyristor bridge, which adjusts the DC field current to maintain the desired voltage.
Installation Requirements:
- Route control signal cables away from high-power thyristor firing cables to prevent noise injection.
- Ensure proper shielding and grounding of all analog feedback signals.
- Calibrate the module according to the specific generator parameters during commissioning.
Usage Precautions:
- Never disconnect field current sensors while the generator is online.
- Verify all protection limits are correctly set before placing the excitation system in automatic mode.
