Electric switch-disconnector for use in lines of medium and high voltage electric energy transmission, has fixing contact fixed in displacement direction by resistor, where value of resistor changes according to position of mobile contact

摘要

The switch-disconnector has fixed contacts (1A, 1B) connected to electric conductors (12, 13). A mobile contact (2) has a length that is slightly greater than a distance separating the contacts, assembled to rotate on an axis of rotation located at middle distance of the fixed contacts. One of the fixed contacts in a circular movable displacement direction by an electric resistor (15) extends in arc of circle along the circumference defined by rotation of ends (21) from the mobile contact, where value of the resistor changes in a continuous way according to the position of the mobile contact.