ABB UFC760BE145 Excitation Control Unit

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Product Model

ABB UFC760BE145 Excitation Control Unit
Order Code: 3BHE004573R0145

Product Overview

The ABB UFC760BE145 is a high-performance Excitation Control Unit designed for generator voltage regulation and excitation current control. It plays a critical role in ABB’s generator automation and process control systems, ensuring precise and stable operation of synchronous machines.

The UFC760BE145 employs advanced microprocessor-based digital control technology with high-speed feedback and communication capability. It ensures accurate excitation current regulation, providing excellent voltage stability and transient response under dynamic load conditions.

Technical Specifications (Typical)

• Model: UFC760BE145

• Order Code: 3BHE004573R0145

• Type: Excitation Control Unit

• Function: Generator excitation current and voltage regulation

• Control Method: Digital closed-loop voltage control

• Input Signals: Voltage, current, frequency, and feedback signals

• Output Signals: Excitation control (0–10 V / 4–20 mA)

• Power Supply: 24 V DC

• Power Consumption: approx. 5 W

• Communication Interface: RS-485 / Fiber optic / System bus (depending on version)

• Response Time: < 10 ms

• Accuracy: ±0.5%

• Operating Temperature: 0°C to +55°C

• Storage Temperature: -25°C to +70°C

• Humidity: ≤95% (non-condensing)

• Protection Class: IP20

• Dimensions: approx. 200 mm × 130 mm × 30 mm

• Weight: approx. 0.5 kg

Features and Advantages

1. High-Precision Excitation Control: Digital PID regulation ensures stable generator voltage output.

2. Superior Reliability: Industrial-grade components guarantee long-term durability.

3. Modular and Maintainable: Plug-and-play design simplifies installation and service.

4. Multiple Communication Interfaces: Enables easy integration with ABB control systems and PLCs.

5. Comprehensive Protection: Built-in overcurrent, overvoltage, and thermal protection.

6. Full System Compatibility: Seamlessly integrates with ABB Unitrol, Advant, and Symphony+ platforms.

Application Areas

• Power plant excitation systems and automatic voltage regulators (AVR)

• Generator excitation control for hydro, thermal, and gas turbine units

• Industrial power generation and process automation systems

• Power management and SCADA/EMS systems

• Renewable energy and distributed power applications

Precautions

1. Disconnect the power supply before installation or maintenance.

2. Use anti-static protection and avoid direct contact with circuit components.

3. Ensure secure wiring connections to prevent signal loss.

4. Avoid operating in humid, dusty, or corrosive environments.

5. Only qualified personnel should perform installation and configuration.

6. Regularly inspect grounding and communication integrity to maintain reliability.

The structure and details of the product：

 

 

 

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