Medium voltage land connection for marine vessels
AssigneeSiemens Aktiengesellschaft
InventorsHans-Erhard Schmidt, Manfred Steinke, Dieter Wieck
Life of this patent
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Abstract
A device for electrically connecting a polyphase ship distribution network to a polyphase land supply network includes a connection unit for connecting the land supply network. The connection unit is connected to a back-to-back link by way of an input transformer, the link having current converters that are interconnected via at least one direct current voltage circuit. An output transformer is connected downstream of the back-to-back link. The output voltage of the transformer lies between 5 and 50 kV. The output transformer can be connected to the ship distribution network via a single multi-phase interconnecting cable.
Claims9
An apparatus for electrically connecting a polyphase marine vessel distribution system to a polyphase shore power supply system, comprising:
- an input transformer having an input for connection to the shore power supply system and an output;
- a back-to-back link connected to said output of said input transformer, said back-to-back link including converters connected to one another;
- an output transformer connected to said back-to-back link, said output transformer having an output providing an output voltage;
- and
- a single polyphase connection line for connecting said output of said output transformer to the marine-vessel distribution system in order to supply the output voltage to the marine-vessel distribution system;
- said connection line including at least one optical waveguide connected to said back-to-back link.
Dependencies are inferred from the claim text.