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

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. Generation Management System Pressed from the increasingly limited technical personnel in the islands but also from the need to drop operational overheads in order to keep energy prices competitive, the PPC was looking for ways to operate 34 power plants, located throughout Greece's islands, more efficiently. 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. Back-up / Peak power plants MAS is not only known for its advanced solutions in prime power plants. The company has a long history in systems regarding backup or peak shaving plants. PPC Gavdos Plant Upgrade Description unavailable PAGNI Emergency Generators System Upgrade Description unavailable

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