MAS S.A has both the background and the skilled team to retrofit automatic voltage regulators (AVR) and excitation systems for turbines and engines.

Many installed automatic voltage regulators (AVR) are at the stage in their product lifecycle when spares and support are no longer available. This component failure can result in loss of a generator.

We avoid this risk by offering proactive help with obsolete AVRs and excitation systems to prevent loss of power generation. MAS S.A has developed a range of retrofit and upgrade solutions, which focus on common obsolescence failure modes.

At MAS S.A we provide lifecycle support and retrofit services for your generator set to enhance reliability and reduce downtime. Our engineering team retrofits singular AVR systems as well as automatic voltage regulators which belong to larger engineered control systems found in various land and marine applications.

Discover some of our work

PAGNI Emergency Generators System Upgrade Description unavailable Shipping Automation From its creation the company is involved in the design and development of engine room systems and bridge controls. Prime power plant upgrades Prime Power plants are plants that are part of the grid capacity and are usually in continuous operation or operate for long periods. MAS undertakes the complete upgrade of such power plants on an EPC basis. PPC Chios Plant Upgrade Description unavailable Upgrade of National Primary Frequency Control System for Hydro-Electric Stations The new system provides increased speed and accuracy of each hydro unit while ensuring completely unattended safe operation. Yacht diesel generators power management retrofit The project was undertaken on a turn-key basis.  This means that all Engineering, Procurement, Development, Installation and Commissioning was delivered by MAS.

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or give us a call at (+30) 210 401 4000