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Variable speed shaft generator

Shaft generator equipped with variable frequency drives is economical, environmental-friendly and provides a range of advantages.


Cheaper energy

A power source which, under most conditions, generates cheaper energy than auxiliary diesel generator sets.

Reduced propeller loss

With Controllable Pitch Propeller (CPP), VFD installation allows efficient use of combinator mode instead of fixed speed operation, thus reducing propeller losses significantly on partial propeller loading conditions.

Operational flexibility

With a variable frequency drive, it is possible to utilize the shaft generator at a wide range of main engine RPM’s, enabling operational flexibility.

A typical system configuration for a container vessel with WHRS and a shaft generator/motor system

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