ABB 3BHE046836R0102 Excitation Logic Controller

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1. Product Overview

The ABB 3BHE046836R0102 Excitation Logic Controller is an intelligent control module designed for generator excitation systems. It monitors generator voltage, current, and other key parameters to provide precise excitation regulation, ensuring stable operation and efficient power output. The controller can seamlessly integrate with ABB excitation systems and automation platforms, suitable for hydro, thermal, and industrial power generation applications.

2. Technical Specifications (Typical)

• Model: 3BHE046836R0102

• Type: Excitation Logic Controller

• Applicable System: Synchronous generator excitation system

• Input Signals: Generator voltage, excitation current, speed signal, etc.

• Output Signals: Excitation current reference, alarms, and control relay outputs

• Control Modes: Automatic Voltage Regulation (AVR), power factor control, stabilizing control

• Supply Voltage: 24–48 V DC (customizable)

• Operating Temperature: -20 °C to +60 °C

• Mounting: Panel or control cabinet module installation

• Protection Class: IP20

• Communication Interface: Optional Modbus/Profibus for remote monitoring

• Reliability: Industrial-grade design for continuous 24/7 operation

3. Advantages & Features

• Precise excitation control: Ensures stable voltage and power output through logic operations and real-time monitoring.

• Fast response: Quickly adjusts to load fluctuations and grid disturbances to enhance generator stability.

• Intelligent protection: Provides overvoltage, undervoltage, overexcitation, and system fault alarms.

• Modular design: Facilitates system integration and expansion, supporting remote monitoring and automation.

• Industrial reliability: Stable performance under high temperature, vibration, and continuous operation.

4. Typical Applications

• Synchronous generator excitation control in thermal power plants

• Hydro generator excitation systems

• Industrial captive power generation control

• Automated power systems and grid regulation

• Backup generator systems for critical industrial loads

5. Installation & Operation Notes

1. Power supply matching: Ensure the controller supply voltage matches the system rating.

2. Correct signal wiring: Voltage, current, and speed signals must be correctly connected as per the manual.

3. Environmental conditions: Avoid humidity, dust, and corrosive gases; ensure proper ventilation.

4. Periodic calibration: Regularly verify excitation response and output signal accuracy.

5. System integration: Verify compatibility and logical correctness when interfacing with other automation or protection devices.