SPRING CONTROL DEVICE FOR A CIRCUIT BREAKER

摘要

For application to medium- and high-voltage circuit breakers, the control device makes it possible to actuate opening of the circuit breakers used in the medium- and high-voltage networks very quickly. The spring used in the control device is a spring of the composite type, having a curved C- or Ω-shape. The spring has a stationary first end and a movable second end that is pivotally connected to the end of a lever device, that is itself constrained to rotate with the drive shaft of the control device.

主权项

1. A spring control device for a circuit breaker in a high- or medium-voltage electrical network, the device including a drive shaft (6) for enabling very fast actuation of at least one movable contact of the circuit breaker;
the control device being characterized in that the spring (1) is a composite spring of the C-shape or Ω-shape type, and in that the spring has: a first end (2) in the shape of a hook and fastened to a housing (10A, 10B) of the control device; and a second end (3) in the shape of a hook that is movable and that is pivotally fastened to a distal end of a lever system (7), the distal end of the lever system being constrained to rotate with the drive shaft (6) via its other end.