When a cruise ship or ocean transport vessel equipped to receive shore power docks in port, Cochran Marine’s uniquely designed automation system determines the proper operating parameters. The shore-side operator simply selects the ship to be connected and the Cochran Marine Shore Power system does the rest.
Five flexible power and control cables are lifted by a specially designed Cable Positioning Device (CPD) and connected to the ship’s electrical system through marine-standard plugs and sockets. Based on the ship’s specific voltage requirements (either 6.6 kV or 11 kV), power is then transferred to the ship and synchronized through a closed transition process that is monitored and controlled by the ship’s systems. Concurrently, the shore-side automation system maintains a precise record of the ship’s power consumption for monitoring purposes.
Shore-side monitoring systems utilize protection relays, as well as redundant safety systems, to ensure the safety of ship and shore electrical systems. Once connected, all of the ship’s systems run on shore electricity instead of its diesel engines, virtually eliminating fuel emissions from the ship while in port.
1. Frequency Converter (50 Hz Market)
2. Primary Switchgear
4. Secondary Switchgear
5. Earthing Switch
6. Cable Positioning Device (CPD)
7. Ship Cable