ABB UNITROL 1000-PM40 excitation controller modules

The ABB UNITROL 1000-PM40 is a microprocessor-controlled circuit-breaker-type power-stage IGBT semiconductor module. Here is an introduction:

Basic Information

Connection Mode: It is connected to the UNITROL 1000 - 15 AVR through a CAN bus. When combined, it is called UNITROL 1000 - 40, which can increase the excitation current to 40 A.

Advantage: Since the power stage is automatically set by UNITROL 1000 - 15, there is no need for additional settings and debugging. It is a perfect solution for multi - purpose applications when the excitation current is between 15 A and 40 A.

Features and Functions

High - Precision Control: The UNITROL 1000 series, to which the PM40 belongs, uses advanced microprocessor technology and IGBT semiconductor technology. It can achieve automatic voltage control through an adjustable PID controller, maintain the terminal voltage of the synchronous generator at a set value, and ensure the stability of the generator's output voltage.

Reactive Power Regulation: It can control the reactive power output of the generator, adjust the excitation level according to the reactive power demand of the power system, and maintain the power factor within a specified range.

Comprehensive Protection: The UNITROL 1000 series has various protection functions, including over - excitation protection, under - excitation protection, over - current protection, and over - temperature protection. These protection functions can protect the generator and the excitation system from damage caused by various fault conditions and ensure the safe and reliable operation of the equipment.

Monitoring and Diagnosis: The UNITROL 1000 series continuously monitors parameters such as excitation current, voltage, power factor, and generator terminal voltage. It also has built - in diagnostic functions that can detect and identify faults in the excitation system and provide detailed fault information to help maintenance personnel quickly diagnose and repair problems.

Wide Power Supply Voltage Range: It has a wide range of power supply input voltages for AC and DC inputs, which can adapt to different power supply environments.