ABB UCD224A102 (3BHE023681R0102) core control board for power electronic equipment, compatible with medium voltage converters, SVC and generator excitation control systems.

Product Overview

• Part No: UCD224A102, alternative order code 3BHE023681R0102
• Brand: ABB

• Category: Main Control BoardUCD224A102 belongs to ABB high-performance power electronic control series. It serves as the central processing unit inside power conversion cabinets. The board receives voltage, current feedback signals from power units, executes real-time closed-loop control algorithms, generates trigger control signals for power drive boards, and communicates bidirectionally with upper monitoring systems. It coordinates all internal functional modules, implements multi-level overvoltage, overcurrent and thermal protection logic, ensures stable dynamic regulation of power equipment, and is a vital spare component for maintenance of medium voltage power devices.

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Core Features

• High-speed signal processing capability, meets fast response requirements for power closed-loop control
• Integrated comprehensive fault diagnosis circuit, real-time detection of circuit abnormalities and alarm signal output
• Multiple built-in communication interfaces for reliable data interaction with drive boards and controller units
• Optimized PCB anti-interference layout, strong immunity to electromagnetic noise inside high-voltage cabinets
• Complete hardware protection logic to avoid secondary damage during equipment failures
• Standard plug-in board structure, convenient disassembly and direct field replacement

• Passed strict industrial aging and EMC testing, supports long-term continuous operation under variable load

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Technical Specifications

• Power Supply: 24VDC
• Operating Temperature: -20°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Installation: Standard rack slot mounting inside control cabinet

• Protection Class: IP20

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Compatibility & Application

• Matched with ABB medium voltage converters, static var compensators (SVC) and UNITROL generator excitation systems
• Widely used in power plant generator excitation control, metallurgical rectifier power supply, industrial medium voltage transmission, grid power quality adjustment projects