ABB KUC711AE101 3BHB004661R0101 Excitation Controller Detailed Information

The ABB KUC711AE101 (order number 3BHB004661R0101) excitation controller is a key module in the ABB Unitary Excitation System (UNITOL series), mainly used for regulating, protecting, and controlling the generator excitation system. It is responsible for regulating the excitation current during synchronous generator operation, ensuring the stability of generator voltage and reactive power, thereby improving the reliability and stability of the power system.

This controller has the characteristics of high dynamic response, redundant protection, modular structure, etc., and is suitable for excitation regulation and protection of various medium and large generator sets (gas turbines, steam turbines, water turbines).

Technical parameters (typical)

Model: KUC711AE101

Order number: 3BHB004661R0101

Function: Generator excitation regulation and control

Excitation type: Suitable for Static Excitation systems

Input/Output:

• Analog input (voltage, current, power factor, reactive power signal)
• Switching input/output is used for protection and interlocking
• Communication interface (optional support for Modbus/ABB proprietary protocols)

Adjustment function:

• Automatic Voltage Regulation (AVR)
• Reactive Power/Power Factor Control (VAr/PF Control)
• Manual Excitation Control

Protection function:

• Over excitation and under excitation protection
• Excitation circuit short circuit/open circuit protection
• Voltage limitation, negative sequence current protection

Power supply: 24 VDC (typical)

Installation method: rack mounted, inserted into the excitation system control cabinet

Working environment:

• Temperature: 0~+55 ℃
• Humidity: 5%~95%, no condensation