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

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. Oil & Gas No matter what type of prime mover is driving your generator - be it steam/ gas turbine or a gas/ diesel reciprocating engine, MAS SA designs products to control speed, fuel, exhaust emissions and manage load that are tailored for your specific prime mover. 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. PAGNI Emergency Generators System Upgrade Description unavailable Compressor station retrofit A Gas compressor station of a Middle East customer, comprised of 2 x RR AVON GTs with Dresser Rand Compressors. The units were over 20 years old and had reliability problems. Operators often faced unexplained trips but also faced difficulty in mainlining process operational levels.

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