ABB UAD149A1501 3BHE014135R1501 Excitation Control Module in stock

ABB UAD149A1501 3BHE014135R1501 is an upgraded version excitation control module for ABB UNITROL generator excitation system, based on AC 800PEC control platform. It samples PT and CT signals, runs AVR regulation algorithm and outputs trigger pulses to control the thyristor rectifier unit.

This variant has optimized signal interface and extended temperature tolerance compared with the standard UAD149A0001. It features strong EMC performance and comprehensive fault diagnosis, widely used for generator excitation cabinet retrofit and spare replacement in power plants.

Data Parameters

• 1. Brand: ABB.

• 2. Model: UAD149A1501 3BHE014135R1501.

• 3. Product Type: Excitation Control Module / AVR Regulator Board.

• 4. Application: UNITROL excitation system, AC800PEC platform.

• 5. Feature: Optimized signal sampling, upgraded pulse trigger circuit.

• 6. Characteristic: Extended working temperature, high anti-interference capability.

• 7. Communication: Internal high-speed bus, Ethernet and Profibus.

• 8. Package: Original rack module assembly.

• 9. Mounting: Rack installation inside excitation control cabinet.

• 10. Operating Temperature: -30℃ ~ +70℃.

Core Functions

• 1. Real-time sampling of generator voltage and current signals from PT/CT.

• 2. Execute AVR automatic voltage regulation and reactive power control algorithm.

• 3. Output high-speed trigger pulses to drive thyristor rectifier bridge.

• 4. Continuous diagnosis for overvoltage, overcurrent, open and short circuit faults.

• 5. Transmit operating data and alarm logs to plant DCS system.

Application Scenarios

• 1. Thermal power and hydropower station synchronous generator excitation cabinet.

• 2. Self-provided power plant and industrial generator set voltage regulation system.

• 3. ABB UNITROL excitation system upgrade, commissioning and spare replacement.

• 4. Grid-connected generator unit stability control and reactive power adjustment.

• 5. Power excitation control spare inventory backup for power industry.

FAQ

• 1. Q: What is ABB UAD149A1501 3BHE014135R1501?
      A: It is an upgraded AVR control module for ABB UNITROL generator excitation system.

• 2. Q: What is the difference from UAD149A0001?
      A: It adopts optimized circuit design and supports wider operating temperature range.

• 3. Q: Can it communicate with DCS?
      A: Yes, it supports Ethernet and Profibus for data and alarm uploading.