SHIP

摘要

A ship (1) having a generator (3) for supplying electric power consumed by the ship and capable of receiving electric power from an external power supply (P). The ship (1) further has a reel (23) on/from which a cable (21) for receiving electric power from the external power supply (P) can be wound/let out when the reel (23) is rotated and power supply switching means (51) for switching the electric power received from the generator (3) to the electric power from the external power supply (P) through the cable (21) without stop of supply of electric power.