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STADT AS deliveres complete diesel-electric propulsionsystems for ships and offshore installations.
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Functionally the propulsion drive can be divided into following parts : supply transformer, propulsion motor and frequency converter. In an AC drive, a frequency converter is used to control the speed and torque of electric motor. The speed of the AC electric motor can be controlled by varying the voltage and frequency of its supply. A frequency converter works by changing the constant frequency main electrical supply into a variable frequency output.
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Twin Azipod® provides greater maneuverability and full redundancy from power generation to propeller. Twin Azipod® is the most widely used propulsion for cruise ships.
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Steadily increasing market demands for larger and faster ships have
led to the development of CRP Azipod®, an innovative contra-rotating
propulsion system that enhances efficiency up to 15% compared to
other propulsion technologies.
Contra-rotating propulsion means that there are two propellers on
the same line rotating in opposite directions. With CRP Azipod®, a
steerable Azipod® unit is installed in place of a normal rudder, aligned
downstream of the main propeller. The Azipod® propeller takes
advantage of the rotative energy left in the slipstream of the forward
propeller, providing significant efficiency gains. CRP Azipod® combines
with most types of main propulsion.
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This electric propulsion system has been adopted to ships like, the luxurious passenger vessel which requests comfort riding, the ice-beaker which needs back-and-forth navigation, & the research ship which needs extreme low speed and reducing vibration and water noise.
Become efficient recently, and make use of merit, feeling of adoption of this system appears on a general merchant ship, as engine room space can be reduced while cargo room can be expanded, by adopting of this system.
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