B&W’s SQ-300®i Hybrid automatic voltage control (AVC) is the newest addition to our proven SQ-300 product line. Based on the same trusted technology, the SQ-300i Hybrid AVC can control either a conventional, single-phase transformer rectifier (T/R) set or a low ESP voltage ripple, 3-phase T/R set.
Just like its predecessors, the SQ-300i Hybrid AVC is an integral component of the precipitator control system. It simultaneously controls power to the T/R set, analyzes alarms, and interfaces with computer-based data acquisition software. The ability to control two different types of power supplies, one which has been in use for 80 years and one that is the way of the future, adds a unique dimension to the product line.
Features of the hybrid design
The single-phase and the 3-phase power supplies originate from the same design. They both use silicon-controlled rectifiers (SCR) for power control, neither requires an active cooling system, and both exhibit high reliability. With these similarities, the development of the SQ-300i Hybrid control was a natural progression.
Benefits of the SQ-300i Hybrid AVC