An apparatus for electrically connecting a polyphase vessel distribution system of a vessel to a polyphase land supply system having a supply system connection disposed on land to be connected to a vessel system connection of the vessel distribution system at least in sections by at least one cable connection, enables a fast and secure connection of the land supply system to the vessel distribution system. During normal operation, vessel movements can be reliably compensated by at least one articulated arm used as a support for one or more cable connections. The articulated arm has arm segments interconnected by at least one articulated connection. A joint drive is associated with each articulated connection for mutually pivoting the arm segments interconnected by the articulated connection, which is associated with the joint drive.

A DC grid for an offshore structure has at least four switchboards, each switchboard having at least three connections to other switchboards and each connection including a switch. The grid further includes a plurality of energy sources on the offshore structure, at least one energy source being associated with one of the switchboards; and a plurality of energy consumers, at least one of the energy consumers being associated with one of the switchboards. Switches of the connections are adapted to be closed in normal operation; and the controller is adapted to send a signal from the controller to the switch to open the switch in the event of a fault.

An electrical connection assembly between a movable object and a fixed installation, the assembly including the following elements of substantially cylindrical shape, centered around a vertical axis and going downwards: a windlass using a chain to move a rod along the axis; an outlet receiving a plurality of connections and provided with a hawse pipe in which the rod can engage with small clearance; a connector provided with a top endplate receiving, facing the connections of the outlet, the complementary connections; a turnable lid protecting the connections; a guide and locking system for guiding and locking the rod; and having its bottom portion of conical shape; a rod passing downwards in succession through the hawse pipe of the outlet, then the lid, in order to reach a locking system for locking with the connector; and a basket of funnel-shape, with its large opening upwards, its shape being complementary to the bottom portion of the connector, and centering the connector on the axis.

A mooring buoy for a vessel comprises a floating body comprising a first portion and a second portion, wherein the first portion is rotatable with respect to the second portion. At least one anchoring line is connected between the second portion and the sea floor. At least one electric cable is mounted on the first portion and connected to a power supply. The at least one electric cable has a free end connectable to an electric circuit of the vessel. At least one mooring line is connectable between the floating body and the vessel. The mooring buoy comprises a cable length adjustment mechanism configured to adjust the length of the at least one electric cable when the first portion rotates with respect to the second portion.

The present invention relates to a system and method for mooring of and supply electrical power to a vessel, the system comprising a mooring buoy, a mooring connection being a combined mooring and electrical connection by comprising a mooring line and an electric conductive cable for supply of said electrical power and a retractable vessel connector provided at an end of the mooring connection, wherein the vessel connector is a combined mooring connector and electrical connector. The system further comprising or involves a gripping device arranged on a vessel wherein the gripping device is configured to grip and lock said vessel connector to moor said vessel to said mooring buoy.

A refrigerant air conditioner for boats in ports and marinas, comprising a compressor (1), an external heat exchanger, an internal heat exchanger (13) cooperating with a fan (12). The compressor (1) and the external heat exchanger are contained within an air conditioner container (16; 38) forming part of a multi-service pedestal (17; 36), equipped with a support structure (20; 37) situated on a pier (P) or quay, and the room heat exchanger (13) is placed in a boat (B) moored to pier (P) or quay.

A system for providing marine shore power to a vessel regardless of the configuration of the shore power source or the configuration of any socket installed on the shore power source is disclosed. A vessel plug, which is intended to be installed on a vessel's shore power cable, has a male adapter component which accepts a plurality of adapters. The plurality of adapter each have a female socket component and a male adapter component. The male plug component of the vessel plug is compatible with and plugs into the female socket component of each of the plurality of adapters. Each of the male adapter components of the plurality of components are each configured differently so as to enable a vessel to connect to a shore power source regardless of the configuration of the shore power source or the configuration of any socket installed on the shore power source.

There is disclosed an exchangeable marine energy storage system including a mobile battery configured to be used as a power source of the operating ship after replaced with a mounted battery mounted on an operating ship; a mobile charging ship configured to move in a state of loading the mobile battery; and a charging station configured to float on the sea together with the mobile charging ship and charge the mobile battery loaded on the mobile charging ship by using generated electricity.

A vessel hybrid combined cycle power and propulsion system includes a steam turbine, a gas turbine, an auxiliary generator, an electric propulsion drive system, and an energy storage system, each connected to an AC bus. The system further includes a source of steam for the steam turbine, a control system for controlling operation of the steam turbine, gas turbine, auxiliary generators, electric drive propulsion system and energy storage system. The primary source of steam for the steam turbine is exhaust gas from the gas turbine. The primary source of gas for the gas turbine is boil off gas from the cargo hold. The AC bus includes a plurality of sections of AC bus coupled together by bus ties closed in normal operation forming a closed ring AC bus. The electric propulsion drive system includes a variable speed drive, driving an electric motor coupled through a drive shaft to a propeller.

An electrical system for a marine vessel. The electrical system includes a power supply that produces an output. A powered device is electrically coupled to the power supply, where the powered device receives an incoming power from the power supply. An analysis module determines a difference between the output of the power supply and the incoming power received by the powered device. The analysis module compares the determined difference to a first threshold and generates a first signal when the determined difference exceeds the first threshold.