| 摘要 |
PROBLEM TO BE SOLVED: To restrain consuming electric power as much as possible, without reducing reliability in closing a water gate, in a power source supply system of a water gate facility having the dead weight descent function.SOLUTION: A facility of requiring electric power is classified into a first group and a second group, and is formed as a power source supply system of a water gate facility for connecting a first electric circuit P1 being always electric conduction as an electric circuit for supplying the electric power to the first group and connecting a second electric circuit P2 being electric conduction when necessary and non-electric conduction except when necessary to the second group. The first group includes dead weight descent means H for closing a flow passage R by dropping a door body F by its dead weight. The second group also includes motor operation means A for opening-closing the flow passage R by lifting the door body F by driving force of a prime mover M.SELECTED DRAWING: Figure 2 |
