Abstract: A control apparatus for controlling electrical switchgear, the control apparatus being designed such that it is capable of performing the following in succession: during an opening stage for opening the moving contact, causing the connection end for connection to the moving contact and provided on an output member to go from the point P1 to the point P2, under the effect of an opening mechanical spring moving a moving abutment element that drives the output member by abutment; during a re-cocking stage for re-cocking the spring, moving the moving abutment element under the effect of switching on a motor, while keeping the connection end at the point P2; and during a closure stage for closing the moving contact, causing the connection end to go from the point P2 to the point P1, also under the effect of switching on the motor.

Abstract: An arrangement for synchronizing and the actuation of a set of three interrupters, tow of which are disconnectors and one is a switch, in a combined circuit breaker and disconnector for an alternator is described. This allows for fitting of an accessory shaft for actuation purposes, which is specifically dedicated to the actuation of one of the two disconnection interrupters and to set it in rotation only after a final angle of rotation of a main shaft, which is itself dedicated to the actuation of the other disconnecting interrupter and actuation of the switching interrupter.

Abstract: A control apparatus for controlling electrical switchgear, the control apparatus being designed such that it is capable of performing the following in succession: during an opening stage for opening the moving contact, causing the connection end for connection to the moving contact and provided on an output member to go from the point P1 to the point P2, under the effect of an opening mechanical spring moving a moving abutment element that drives the output member by abutment; during a re-cocking stage for re-cocking the spring, moving the moving abutment element under the effect of switching on a motor, while keeping the connection end at the point P2; and during a closure stage for closing the moving contact, causing the connection end to go from the point P2 to the point P1, also under the effect of switching on the motor.

Abstract: Operating mechanism for medium and high voltage switchgear, in which a rotatable main shaft is coupled to a switch, and a rocker plate is rotatable with the main shaft, the main shaft being arranged to open and close said switch by tilting the rocker plate. The rocker plate constitutes a plurality of force transmission levers and comprises a plurality of zones distributed around the main shaft. A rotary actuator has force transmitting means for driving the rocker plate in a direction corresponding to closing of the switch, and an opening spring for driving the rocker plate in a direction corresponding to opening of the switch. Closed switch locking means are coupled to the rocker plate (4) and are disposed substantially in a common plane of the rocker plate.

Abstract: Operating mechanism for medium and high voltage switchgear, in which a rotatable main shaft is coupled to a switch, and a rocker plate is rotatable with the main shaft, the main shaft being arranged to open and close said switch by tilting the rocker plate. The rocker plate constitutes a plurality of force transmission levers and comprises a plurality of zones distributed around the main shaft. A rotary actuator has force transmitting means for driving the rocker plate in a direction corresponding to closing of the switch, and an opening spring for driving the rocker plate in a direction corresponding to opening of the switch. Closed switch locking means are coupled to the rocker plate (4) and are disposed substantially in a common plane of the rocker plate.

Abstract: This invention relates to a new arrangement for synchronizing and the actuation of a set of three interrupters, two of which are disconnectors (5, 5a; 12, 12a) and one is a switch (16, 17), in a combined circuit breaker and disconnector (D) for an alternator The invention provides for fitting of an accessory shaft (8) for actuation purposes, which is specifically dedicated to the actuation of one of the two disconnecting interrupters (12, 12a) and to set it in rotation only over a final angle of rotation of a main shaft (1), which is itself dedicated to the actuation of the other disconnecting interrupter (5, 5a) and actuation of the switching interrupter (16, 17).