The complete package comprises the gearbox and a combined electric motor and generator as well as a frequency converter in a one hand solution. The hybrid systems are suitable for fixed pitch propeller applications and available for electric motors from 60ekW up to 630ekW. To enable easy installation, the combined electric motor and generator are already flanged to the gearbox and supplied with a frequency converter. The electric drive is aimed at achieving smooth running, less noise and low energy consumption and will gain still more importance. These hybrid systems enable a much more efficient operation, because they allow for riding at a slow speed below the main engine idle speed. The service life of the gearbox depends upon the correct completion of the recommended operating and maintenance services and the use of recommended lubricants. Either an electrical or a pneumatical control valve is mounted on the gearbox. REINTJES developed a new, electrically driven hybrid system solution for gearboxes that provides vessels with an alternative of proceeding at reduced speed. Marine gear control can be effected from either the engine room or the control room. Ever increasing environmental restrictions like maneuvering operations in the harbor or in green areas with reduced or without emissions require an alternative drive solution.
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