| 摘要 |
PROBLEM TO BE SOLVED: To provide a changeover switch for on-load tap changer which can suppress occurrence of chattering when a movable contact comes into contact with a fixed contact.SOLUTION: Magnetic attraction restraint means 30 for restraining the movable contacts 5a, 5b of a movable contactor 5 and corresponding fixed contacts 3, 4 in contact state by attracting each other with magnetic force, when they come into contact with each other is provided across each movable contact and corresponding fixed contact. The magnetic attraction restraint means 30 is constituted of an attracted part 31 composed of a ferromagnetic metal and fixed to one of the movable contact and fixed contact to be restrained, and a magnetic force generation part 32 fixed to the other of the movable contact and fixed contact to be restrained, and generating magnetism attracting the attracted part 31.SELECTED DRAWING: Figure 4 |
