Collection: ABB UNITROL Excitation

ABB UNITROL Excitation Systems deliver precise voltage regulation and dynamic control for synchronous generators and motors across power plants, industrial facilities, and grid‑connected applications. The portfolio includes the UNITROL 1000 series for brushless automatic voltage regulation, the UNITROL 6000 series for indirect and static excitation up to high current ranges, and compact excitation solutions for smaller machines. UNITROL systems ensure grid code compliance, high availability, robust performance in harsh environments, and lifecycle support including modernization and service.