Description

ABB ACBU‑A1 – Active Crowbar Control Unit for Wind Turbine Converters

Product Overview

ACBU‑A1 is a dedicated active crowbar control board for the ABB ACS800‑67 doubly‑fed wind turbine converter series. During grid faults and voltage dips, the module triggers fast protection logic to limit rotor‑side over‑current, protecting IGBT power semiconductors from surge damage. This critical spare component enables wind farms to meet grid‑code ride‑through requirements and reduce unplanned turbine downtime.

Technical Specifications

• Brand: ABB
• Model: ACBU‑A1
• Warranty: One Year
• Condition: 100% New & Original
• Function: Active crowbar protection control for DFIG converters
• Application: Wind turbine variable‑speed drive cabinets
• Operating Temp: -20 °C ~ +60 °C
• Mounting: Internal converter rack PCB assembly

Application Scenarios

• On‑shore Wind Farm: Spare protection board for 1.5 MW / 2 MW doubly‑fed turbine converters
• Off‑shore Wind Turbine: Grid‑fault ride‑through control for renewable power assets
• Wind Power Converter Workshop: Maintenance spare for ABB ACS800‑67 drive repair
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