ABB PCD235A101 3BHE032025R0101 Exciter Control Module

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ABB PCD235A101 3BHE032025R0101

ABB PCD235A101 (Order No. 3BHE032025R0101) is an Exciter Control Module used in ABB generator excitation and power control systems. It is part of ABB’s excitation control product family and is mainly applied in generator voltage regulation, excitation control, and power plant automation systems.

Product Description

• Manufacturer: ABB
• Model: PCD235A101
• Order Number: 3BHE032025R0101
• Product Type: Excitation Control Module / Exciter Controller
• System Application: ABB UNITROL excitation systems
• Function: Controls generator excitation current to maintain stable generator voltage and improve power system performance.

Technical Specifications

Parameter	Description
Power Supply	24 V DC
Communication Interfaces	Modbus / PROFIBUS (depending on configuration)
Protection Class	IP20
Operating Frequency	50/60 Hz
Input Impedance	≥200 kΩ
Current Measuring Resistor	100 Ω
Installation	Cabinet / control system mounting
Approx. Weight	1.48 kg
Dimensions (shipping)	Approx. 37.5 × 14.2 × 7.2 cm

Main Functions

• Automatic Voltage Regulation (AVR)
  Provides accurate excitation control to maintain stable generator output voltage.
• Excitation Current Control
  Adjusts the generator field current according to operating conditions.
• Generator Protection & Monitoring
  Supports fault monitoring, diagnostics, and alarm functions to improve system reliability.
• Communication Integration
  Enables connection with PLC, DCS, SCADA, and higher-level monitoring systems through industrial communication networks.

Applications

ABB PCD235A101 is commonly used in:

• Power plant generator excitation systems
• Turbine generator control systems
• Hydropower and thermal power generation units
• Industrial power generation facilities
• Large motor excitation and drive control applications

Advantages

• High reliability for continuous industrial operation
• Precise generator voltage regulation
• Modular design for easier maintenance
• Compatible with ABB excitation control platforms
• Suitable for critical power generation environments

Conclusion

The ABB PCD235A101 (3BHE032025R0101) is a high-performance excitation control module designed for generator excitation regulation and power system stability. It plays a key role in ABB UNITROL excitation solutions, providing accurate control, monitoring, and communication capabilities for modern power generation applications.