ABB 3BHE032025R0101 (PCD235A101) is a high-performance excitation controller commonly used in the excitation system of synchronous generators. The following is a detailed description of the parameters and functions of this model:
Model: PCD235A101
Product code: 3BHE032025R0101
Category: Excitation controller
Application scenario:
Excitation control of synchronous generator.
Used for voltage regulation and reactive power management in power plants (thermal power, hydropower, wind power, etc.) or industrial power grids.
Technical parameter
Power input:
DC power supply: 24V or 48V DC input is usually supported (refer to the technical manual for the specific range).
Power consumption: Low power design, power consumption is usually less than 50W.
Output parameters:
Field current range: Supports a wide field current range (usually 0~10A or higher).
Excitation voltage range: The output excitation voltage ranges from 0 to 200V (The specific range needs to be determined based on the configuration).
Control function:
Automatic Voltage Regulation (AVR) : High precision voltage regulation capability.
Power factor control (PFC) : Maintain a stable power factor in the grid-connected state.
VAR Control: Control reactive power output to meet grid requirements.
Dynamic response:
Fast response to generator load changes to ensure stable operation of the system.
The dynamic voltage recovery time is usually less than 20ms.
Protection function:
Overexcitation and underexcitation protection.
Generator voltage too high or too low protection.
Excitation circuit open or short circuit protection.
Temperature protection (overheating alarm or automatic shutdown).
Communication and interface
Communication protocol:
Modbus RTU (RS-485 port).
Optional support for industrial communication protocols such as IEC 61850 or Profibus (depending on the configuration).
Interface type:
RS-485 interface for communication with external systems.
Analog input/output interface for collecting and transmitting signals.
Digital input/output interface for logic control.