| 摘要 |
PROBLEM TO BE SOLVED: To provide an operation mechanism of a switchgear for electric power which has essential functions, and operates and responds fast, and the switchgear for electric power including the same.SOLUTION: A switchgear for electric power includes a column of outside permanent magnets 31, a column of inside permanent magnets 32, an inside pipe 38, an outside pipe 39, a three-phase coil 33, an output ring 34, and an electric power supply line 33a. In the column of the outside permanent magnets 31, magnetic poles adjoin one another while rotated at intervals of up to 90°. In the column of the inside permanent magnets 32, magnetic poles have components in a magnetization vector radial direction as the same direction with the column of the outside permanent magnets 31 and in a magnetization vector axial direction as the opposite direction. The column of the outside permanent magnets 31 and the column of the inside permanent magnets 32 are fixed opposite such that the components in the magnetization vector radial direction have the same direction. The three-phase coil 33 is interposed between the column of the outside permanent magnets 31 and the column of the inside permanent magnets 32 across certain clearance. |
