FIELD: electricity.
SUBSTANCE: contact unit for a vacuum interrupter includes a fixed contact; a fixed electrode connected to the fixed contact; a moving contact moved to the first position, in which the moving contact is brought into contact with the fixed contact, and the second position, in which the moving contact is separated from the fixed contact. The moving electrode is connected to the moving contact and moved with the moving contact. A contact supporting element is installed so that it can contact the moving contact in a circumferential direction of the moving electrode and enlarge the contact surface area providing contact of the moving contact together with the moving electrode to reduce the stress applied to the moving contact and to the moving electrode when the moving contact moves to the first position.
EFFECT: improving reliability and stability.
5 cl, 6 dwg
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