Machines and drives

Electrical energy generation and conversion play an increasing role on board
dredging, mining, offshore support and special vessels. The advantages of full
electric solutions are:

  • freedom to locate according to vessel stability and speed requirements
  • easy tuning of drive characteristics to the specific application
  • easy integration of all energy converters into a comprehensive system
  • easy power distribution and management to current users and requests
  • low vibration and noise levels for more comfort and lower environmental load.

Examples of beneficial electric power

The benefits of hydraulic efficiency, free choice of characteristics and the freedom of location accompanying electric drives easily outperform mechanical efficiency of directly driven pumps, in particular if speed control is required. In this area, IHC D&A can contribute more than any other supplier of electrical systems, because of IHC Merwede’s global knowledge of pump processes and control – and this is not limited to dredge pumps alone.

The same is true of propulsion power. IHC Merwede’s vessels are extremely effective with propulsion energy, because of their hydrodynamic hull shape combined with its full block factor. Supported by this comprehensive framework, IHC D&A adds value with machines and drives developed according to the same mind-set. This stands for the lowest possible cost of energy per unit of transported cargo, irrespective of the selected prime movers.

In short, it’s a genuine inside understanding of the technology used by our customers that counts! For an example watch the IHC D&A machine and drive movie 
(If requested in the message row, load the active-X element, and wait a few seconds before starting the player)


Outstanding features of IHC D&A variable frequency drives

In particular, the IHC D&A frequency drives attracted the attention of the market from day one. Using proven IGBT units, it is the well-considered total design that fits them into their maritime purpose and provides them with outstanding features:

  • good pricing, due to the integration of the water-cooling system into the vessel and modular layout of the entire frequency drives series
  • seamless interface with the platform and dredging, mining or offshore automation makes all relevant drive and machine data available throughout the vessel
  • dustproof housing – the drives can be located in ‘dirty’ rooms
  • possible to install in warm locations, due to internal cabinet cooling
  • integration within the vessel’s construction process, JIT delivery of plug-in modules
  • No expensive cleaning operations required before commissioning.

Complete package

Strategic alliances with key players in the market allow IHC D&A to supply every kind of branch-independent equipment for the whole chain of electric energy generation, distribution and conversion. It also adds well-known IHC Merwede high-quality solutions into the areas of design, system integration and life-cycle support.


Equipment in this area includes:

  • AC and DC generators for low, medium and high voltages
  • main switchboards, transformers and power distribution equipment
  • frequency drives for low, medium and high voltages
  • automation and system integration equipment
  • complete electrical installations.

News & Events

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