Subsea power distribution device and system

A subsea power distribution device comprising:

• a first watertight housing within which at least one transformer is positioned, the transformer having a primary winding and a number of secondary windings;
• an input terminal which is electrically connected to the primary winding and is arranged to be connected to a remote power supply;
• a number of output terminals, each of which is electrically connected to a secondary winding;
• and
• a number of switches which are arranged to open and close the connections between each secondary winding and a corresponding output terminal, the switches being arranged within the first watertight housing;
• wherein each output terminal is further connected to an overcurrent breaking device which is arranged to be connected to a subsea power consuming device, the overcurrent breaking device being arranged in a second watertight housing separate from the first watertight housing.

A subsea power distribution system, comprising:

• a remote power supply;
• a subsea power distribution device which includes:
• a first watertight housing within which at least one transformer is positioned, the transformer having a primary winding and a number of secondary windings;
• an input terminal which is electrically connected to the primary winding and is arranged to be connected to the remote power supply;
• a number of output terminals, each of which is electrically connected to a secondary winding;
• and
• a number of switches which are arranged to open and close the connections between each secondary winding and a corresponding output terminal, the switches being arranged within the first watertight housing;
• wherein each output terminal is further connected to an overcurrent breaking device which is arranged to be connected to a subsea power consuming device, the overcurrent breaking device being arranged in a second watertight housing separate from the first watertight housing;
• a primary electrical connection which interconnects the remote power supply and the input terminal of the subsea power distribution device;
• and
• secondary electrical connections which interconnect the output terminals of the subsea power distribution device and the subsea power consuming devices.