ABB UAD149A0001 3BHE014135R0001

Core Product Description

Product Name: Excitation Controller Module or Excitation System Control Unit

Brand: ABB

Primary Application: Designed specifically for the excitation systems of large synchronous motors and generators, especially in high-voltage, high-power applications.

Detailed Functions & Role

This module is the core control brain of ABB’s UNITROL® series excitation systems (most likely the UNITROL® 6800 or similar high-end models). Its primary purpose is to precisely, rapidly, and reliably control the direct current (field current) applied to the rotor winding of a synchronous motor/generator.

Key functions include:

1. Voltage Regulation: Automatically maintains the generator terminal voltage at a set value, ensuring stable power supply quality.

2. Reactive Power Control: Regulates the reactive power generated or absorbed by the generator to stabilize grid voltage and optimize the power factor.

3. System Stabilizer: Damps low-frequency oscillations in the power system by introducing additional control signals, thereby enhancing grid stability.

4. Protection Functions: Provides comprehensive protection, such as over-excitation limitation, under-excitation limitation, V/Hz (Volt per Hertz) limitation, and loss of excitation protection, to prevent equipment damage.

5. Grid Connection & Synchronization: Supports automatic synchronization and grid connection of generators.

6. Communication & Monitoring: Features robust communication interfaces to connect to a plant’s DCS (Distributed Control System) or SCADA (Supervisory Control and Data Acquisition) system, enabling remote monitoring, data logging, and parameter setting.

Product Model Analysis

• UAD149A0001: This is typically ABB’s internal part number or order code.

• 3BHE014135R0001: This is the module’s Product Type Code, which is unique within ABB’s industrial automation product catalog. This code is used for identification, ordering, and finding technical documentation.

Technical Features

• High-Performance Processor: Utilizes a powerful Digital Signal Processor (DSP) capable of executing complex and fast control algorithms.

• High-Reliability Design: Employs redundant and fault-tolerant design to ensure continuous and stable operation in harsh industrial environments (e.g., power plants, large pumping stations, compressor drives).

• Modularity & Scalability: As part of a system, it can be flexibly configured with other modules (e.g., power supply modules, measurement modules, I/O modules).

• Advanced Control Algorithms: Incorporates ABB’s advanced technology and years of experience in the field of excitation control.

• User-Friendly Interface: Typically configured, commissioned, and diagnosed using dedicated software tools (such as ABB’s MACH2™ control software platform).

Typical Application Areas

This module is typically used in applications demanding extremely high control performance and reliability:

• Large generators in Thermal/Hydraulic/Nuclear Power Plants

• Large synchronous motors in Industrial Drives, for example:

  • Natural gas pipeline compressors

  • Large water pumps

  • Mine hoists

  • Large mill drives in the metallurgical industry

☀️Tara(Sales Director)

📞Tel: + 86-13806028623

📮Whatsapp:+86-13806028623

💬Email: ydf8801@163.com

🏚️Ship to you via DHL/TNT/UPS/EMS/Fedex

🥇Product Condition: One-year warranty

Sales of the brand:

ABB、EPRO、GE、FOXBORO、Schneider、Rexroth、Honeywell、Bently、YASKAWA other global DCS system and PLC system, servo system of famous industrial brand.

Company Overview

Main Products

We specialize in supplying original imported spare parts for DCS, PLC, robotics, and large servo systems from leading global brands, including:

• FOXBORO | EMERSON | TRICONEX | XYCOM | BENTLY
• ROCKWELL | ABB | GE | Aen-Brady | YOKOGAWA
• HONEYWELL | RELIANCE | SCHNEIDER | MODICON
• Westinghouse | WOODWARD | Motorola | Rexroth | SEW

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