The control device possesses a rigid main part combining most of the functional elements of this type of control device. It is made up of two portions of a rotary shaft, having placed between them a cam and a support arm that are connected together by a pivot that is offset relative to the axis of rotation. A toothed wheel having an inner set of teeth is placed around the support arm that is provided with a rachet system. The toothed wheel has an outer set of teeth-driven by a motor, via an intermediate gearwheel. The pivot controls the compression of the actuator spring by the assembly rotating. The device is applicable to high and medium voltage circuit breakers and switches.

A switch device includes a circuit module and a pressing module. The circuit module includes a plurality of pushbuttons and a light-emitting member that emits light having different colors when the pushbuttons are pressed. The pressing module includes an operating unit, a driven member and a pressing member. The driven member is moved alternately to a retracted position and a projecting position as a result of depression of the operating unit. The pressing member is connected to the driven member to press one of the pushbuttons when the driven member is at the projecting position, such that one of the colors of the light corresponding to the one of the pushbuttons is visible through the operating unit.

A contact system of a circuit breaker includes a fixed contact. The contact system also includes a moveable contact arm assembly comprising at least one moveable contact arm having a moveable contact thereon, the moveable contact arm moveable to define a closed condition and a blow open condition. The contact system further includes a carrier assembly operatively coupled to the moveable contact arm. The contact system yet further includes a latch plate operatively coupled to the carrier assembly. The contact system also includes a trip shaft operatively coupled to the carrier assembly, the trip shaft having a non-circular region defining an engagement surface disposed in contact with the latch plate in the closed condition. The contact system further includes a biasing portion of the moveable contact arm configured to rotate the trip shaft out of engagement with the latch plate and into the blow open condition.

An automatic opening mechanism that includes a turntable and a first energy turntable to rotate from an energy storage spring, a reset mechanism that includes a reset gear, and a tripping mechanism that includes a tripping unit. The first energy storage spring releases energy and drives the turntable to rotate from an energy storage position to an every release position; meanwhile, the operating shaft is driven to rotate from a closing position to an opening position. The operating shaft rotates from the opening position to the closing position and drives the turntable to rotate from the energy release position to the energy storage position so as to drive the first energy storage spring to store energy, and the turntable is engaged with the reset gear to drive the turntable to rate, and the reset gear drives the tripping unit to reset.

An automatic opening mechanism that includes a turntable and a first energy turntable to rotate from an energy storage spring, a reset mechanism that includes a reset gear, and a tripping mechanism that includes a tripping unit. The first energy storage spring releases energy and drives the turntable to rotate from an energy storage position to an every release position; meanwhile, the operating shaft is driven to rotate from a closing position to an opening position. The operating shaft rotates from the opening position to the closing position and drives the turntable to rotate from the energy release position to the energy storage position so as to drive the first energy storage spring to store energy, and the turntable is engaged with the reset gear to drive the turntable to rate, and the reset gear drives the tripping unit to reset.

A remotely-controlled rotary disconnecting switch that includes an operating device and a switch body, which includes at least one switch unit. Each switch unit includes a moving contact assembly and a static contact. The operating device drives the moving contact assembly to rotate to be connected to or disconnected from the static contact to connect or disconnect. The operating device includes an operating shaft, a real-time energy storage mechanism, a delayed energy storage mechanism, a locking mechanism with a locking fastener and a tripping mechanism with a trip that actuates to drive the locking fastener to be unlocked from the delayed energy storage mechanism, the delayed energy storage mechanism releases energy to drive the operating shaft to rotate to an opening position, and then the operating shaft drives the real-time operation mechanism to drive the remotely-controlled rotary disconnecting switch to be switched to an opened state.

A high current switching device includes an electrical switch assembly and an input shaft operatively connected to the electrical switch assembly. An actuator assembly is attached to the input shaft and is configured to move the input shaft to operate the electrical switch assembly. The actuator assembly includes a mechanical advantage device operatively attached to the input shaft. An actuator is coupled to the mechanical advantage device such that movement of the actuator causes movement of the input shaft to operate the electrical switch assembly. The mechanical advantage device is configured to decrease an amount of force required to move the input shaft by the actuator.

A high current switching device includes an electrical switch assembly and an input shaft operatively connected to the electrical switch assembly. An actuator assembly is attached to the input shaft and is configured to move the input shaft to operate the electrical switch assembly. The actuator assembly includes a mechanical advantage device operatively attached to the input shaft. An actuator is coupled to the mechanical advantage device such that movement of the actuator causes movement of the input shaft to operate the electrical switch assembly. The mechanical advantage device is configured to decrease an amount of force required to move the input shaft by the actuator.

Apparatus and associated methods relate to sequentially opening and/or closing a plurality of switches. A rotational securing assembly sequentially secures and releases a plurality of indexing members evenly distributed along a circular path centered on an axis of rotation of the rotatable disk, thereby sequentially securing and releasing the rotatable disk to and from a sequence of rotational positions. A ratcheting assembly sequentially engages a plurality of advancing members of the rotatable disk, thereby sequentially rotating the rotatable disk to a next one of the sequence of rotatable positions. A cam coupled to the rotatable disk sequentially either opens or closes a plurality of switches attached to an annular frame and distributed along a second circular path centered on the axis of rotation. Operations of the rotational securing assembly are coordinated with those of the ratcheting assembly so as to advance rotation of the rotatable disk in a stepwise fashion.

Apparatus and associated methods relate to sequentially opening and/or closing a plurality of switches. A rotational securing assembly sequentially secures and releases a plurality of indexing members evenly distributed along a circular path centered on an axis of rotation of the rotatable disk, thereby sequentially securing and releasing the rotatable disk to and from a sequence of rotational positions. A ratcheting assembly sequentially engages a plurality of advancing members of the rotatable disk, thereby sequentially rotating the rotatable disk to a next one of the sequence of rotatable positions. A cam coupled to the rotatable disk sequentially either opens or closes a plurality of switches attached to an annular frame and distributed along a second circular path centered on the axis of rotation. Operations of the rotational securing assembly are coordinated with those of the ratcheting assembly so as to advance rotation of the rotatable disk in a stepwise fashion.