A knife switch device for use in a switchgear or a ring main unit, the knife switch device including a stationary contact member, and a movable contact member, the movable contact member being rotatable about a main revolute joint for selectively opening and closing the knife switch device, the movable contact member including at least a first segment and a second segment, the first segment and the second segment being coupled by an auxiliary revolute joint, wherein the main revolute joint is arranged on the second segment, and wherein a rotation axis of the main revolute joint is substantially parallel to a rotation axis of the auxiliary revolute joint.

A knife switch device for use in a switchgear or a ring main unit, the knife switch device including a stationary contact member, and a movable contact member, the movable contact member being rotatable about a main revolute joint for selectively opening and closing the knife switch device, the movable contact member including at least a first segment and a second segment, the first segment and the second segment being coupled by an auxiliary revolute joint, wherein the main revolute joint is arranged on the second segment, and wherein a rotation axis of the main revolute joint is substantially parallel to a rotation axis of the auxiliary revolute joint.

A switch includes a base; switch parts having a common fixed contact and a first and a second fixed contacts; a slide body having a second movable contact configured to be in contact with the common fixed contact and a first movable contact electrically connected to the common movable contact and configured to be in contact with the first and the second fixed contacts, the slide body rotatably supported by the base; a cover mounted to the base; an operation lever supported by the cover to rotate the slide body; and a reverse spring which biases the slide body and the operation lever to be close to each other. The first movable contact slides to be in contact with or separate from the first and the second fixed contacts, and the second movable contact slides while in contact with the common fixed contact, by rotation of the slide body.

An input device comprises a depressible element with two switches including a first switch configured to generate a first signal when the depressible element is depressed by a threshold distance and a second switch configured to generate a second signal indicating when the depressible element is depressed by the threshold distance and the second switch is in an active state. One or more processors may be configured to receive the first signal from the first switch; configure the second switch to change from an inactive state to an active state in response to receiving the first signal; receive the second signal from the second switch in the active state; determine whether the second signal indicates that the depressible element is depressed by the threshold distance; and generate event data confirming that the depressible element is depressed by the threshold distance in response to receiving the second signal.

The invention refers to a disconnector pole (214) for a gas insulated switchgear and a disconnector unit comprising at least two of the aforementioned disconnector poles (214). Moreover, the invention refers to a gas insulated switchgear comprising at least one aforementioned disconnector pole (214) or at least one aforementioned disconnector unit and/or a circuit breaker. The disconnector pole (214) is movable between two contact positions. Moreover, the disconnector pole (214) comprises a metallic contact device (218, 220A, 220B, 221A, 221B, 222A, 222B) to be connected to contacts in the two contact positions. The metallic contact device (218, 220A, 220B, 221A, 221B, 222A, 222B) comprises an outer surface (256). The disconnector pole (214) also comprises at least one metallic housing (219), wherein at least 50% of the entire outer surface (256) of the metallic contact device (218, 220A, 220B, 221A, 221B, 222A, 222B) is arranged in the metallic housing (219).

A connector device comprises a connector and a mating connector. The connector comprises a housing and a slider having a second regulated portion. The mating connector comprises a mating housing having a second regulation portion. The connector is movable between an open position and a closed position. The slider is held by the housing to be movable between a first position and a second position. When the connector is moved to a predetermined position together with the slider which is located at the second position upon a movement of the connector from the closed position toward the open position, the second regulated portion is brought into abutment with the second regulation portion, and a movement of the connector toward the open position beyond the predetermined position is regulated. When the slider is moved to the first position, the connector is movable to the open position.

A connector device comprises a connector and a mating connector. The connector comprises a housing and a slider having a second regulated portion. The mating connector comprises a mating housing having a second regulation portion. The connector is movable between an open position and a closed position. The slider is held by the housing to be movable between a first position and a second position. When the connector is moved to a predetermined position together with the slider which is located at the second position upon a movement of the connector from the closed position toward the open position, the second regulated portion is brought into abutment with the second regulation portion, and a movement of the connector toward the open position beyond the predetermined position is regulated. When the slider is moved to the first position, the connector is movable to the open position.

An input device comprises a depressible element with two switches including a first switch configured to generate a first signal when the depressible element is depressed by a threshold distance and a second switch configured to generate a second signal indicating when the depressible element is depressed by the threshold distance and the second switch is in an active state. One or more processors may be configured to receive the first signal from the first switch; configure the second switch to change from an inactive state to an active state in response to receiving the first signal; receive the second signal from the second switch in the active state; determine whether the second signal indicates that the depressible element is depressed by the threshold distance; and generate event data confirming that the depressible element is depressed by the threshold distance in response to receiving the second signal.

An assembly includes at least two disconnect terminals and at least one coupling device, wherein the at least two disconnect terminals each include at least one switching lever. Each switching lever is adjustable independently from the other switching lever from a first switch position into at least one second switch position and back, wherein the switching levers are connectable by the at least one coupling device. The at least one coupling device connects the switching levers if the at least one coupling device is switched into at least one first coupling position, and the at least one coupling device separates the switching levers from one another if the at least one coupling device is switched into at least one second coupling position. A disconnect terminal includes the at least one coupling device.

The electrical switch includes three fixed contacts and a rotatable knife contact being connected with a permanent electrical connection to a third one of the fixed contacts and including at least one pair of longitudinal blades. The rotatable knife contact connects in a first switching position only a first one and a third one of the fixed contacts electrically together, and in a second switching position only a second one and a third one of the fixed contacts. The rotatable knife contact connects further in a zero switching position the first, the second and the third fixed contact electrically together.