The QAS 625 generator requires less than two hours of service for every 500-hour service interval. - Photo courtesy of Atlas Copco

The QAS 625 generator requires less than two hours of service for every 500-hour service interval.

Photo courtesy of Atlas Copco

Atlas Copco Power Technique’s QAS 625 is the newest and largest mobile generator in its lineup. With a power rating of 625 kVA/500 kW prime power, the fuel-efficient unit is compact, lightweight, and ideal for a wide range of applications, including disaster recovery.

Equipped with a Volvo Penta 16.1L, 6-cylinder Tier 4 Final diesel engine, the QAS 625 runs at 724 hp. The Volvo engine features a selective catalytic reduction (SCR) exhaust aftertreatment system, simplifying the cost of ownership and maintenance. The unit requires less than two hours of service for every 500-hour service interval.

The motor starting capability is outstanding thanks to the AREP alternator excitation system. This provides 300% overcurrent starting capabilities coupled to the engine’s capacity to stand a 100% load step.

For applications requiring generators running in parallel, the power management system optimizes the load level on every generator, which makes it more fuel efficient and expands the generator’s life, according to the company.

Standard external fuel tank connections and dual fuel filters provide the ability to run extended periods without interruption in service. The internal 700-gallon fuel tank runs 27 hours. Camlocks and a battery charger also come standard.

For further ease of use, a voltage selector switch provides simple voltage changes, eliminating time-consuming busbar voltage switching.

Wire routing in QAS cubicles is neat, clean, and service friendly and allows for easy access through large access doors and panels. An environmentally friendly spillage-free frame is standard across the QAS generator range. Additionally, the canopy is corrosion-resistant and has a foam and layering system inside the doors that ensures water-tightness and improved sound attenuation.

The QAS 625 generator can be linked up to 32 generators in parallel with a new state-of-the-art PMS parallel controller that includes a touchscreen display. The PMS controller manages the quantity of generators running in parallel with load demand, starting and stopping units in line with increases or decreases in load.