Wärtsilä Active Front End Drive LV
This variable speed drive solution is delivered with an active rectifier front end. This allows for energy flow in both directions, thus eliminating the need for transformers and braking resistors.
The Wärtsilä Active Rectifier provides Direct Current Control and network filter giving small ripple currents and very low harmonic distortion well below the requirements of international standards .
The variable speed drive is specially designed for lifetime operation in a maritime environment. It is the world’s most compact low voltage (690V) variable speed drive, and features excellent performance for the control of propulsion motors, pump applications, compressors, mooring and winches, and drilling operations. The drive is water cooled and can be directly connected to the ship’s cooling water system. Other important features are the redundant design and interchangeable power modules, which provide an easy and efficient service concept.
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Delivered in 2009, the 92 m Platform Supply Vessel ‘Viking Lady’ has a Wärtsilä Ship Design and combines four Wärtsilä 32DF dual-fuel engines with advanced vessel automation and Wärtsilä’s Low Loss Concept. »
Designed by Wärtsilä Ship Design and delivered in 2009, the AHTS ‘Siem Pearl’ features Wärtsilä’s Low Loss Concept and two Wärtsilä 16V32 engines, two gearboxes and two controllable pitch propellers. »