Overview

The ABB PCD230A101 is a high‑performance excitation controller within the Unitrol family, engineered to deliver reliable excitation control for synchronous generators in power plants and industrial facilities.
It uses advanced digital signal processing to provide fast and accurate excitation signals, improving generator efficiency and system reliability.
Moreover, the module features robust protection and industrial-grade durability, making it suitable for harsh operating environments.

Technical Data

Key Features

• High‑precision excitation control: Fast response to load changes for stable voltage output.

• Digital signal processing: Ensures accuracy and dynamic performance under varying conditions.

• Built‑in protection: Overcurrent, overvoltage, short‑circuit, and fault alarm functions.

• Seamless integration: Compatible with ABB generator control systems and other Unitrol modules.

• Industrial reliability: Resistant to vibration, interference, dust, and humidity.

• Flexible configuration: Supports customized excitation curves and parameter settings.

Typical Applications

• Power generation plants (thermal, hydro, renewable) for generator excitation control.

• Industrial facilities requiring stable synchronous motor operation.

• Utilities and substations for grid stability and reactive power management.

• Retrofit projects upgrading legacy excitation systems with modern digital controllers.

FAQ

Q1: What is the primary function of the ABB PCD230A101?
A1: It regulates generator excitation, ensuring stable voltage and reactive power control.

Q2: What communication protocols are supported?
A2: It supports Modbus RTU, CAN, and Unitrol Bus for flexible integration.

Q3: Can it operate in harsh environments?
A3: Yes, it works reliably between -20 °C and +70 °C, with strong resistance to interference.

Q4: What protection features are included?
A4: Overcurrent, overvoltage, short‑circuit, and fault alarms are built in.

Q5: Where is it typically used?
A5: In power plants, industrial automation, and utility substations for generator excitation control.