The present invention provides a vacuum interrupter for interrupting a voltage. The vacuum interrupter includes a vacuum bottle housing having an interior and an exterior, and at least one vacuum bottle positioned within the interior of the vacuum bottle housing. The at least one vacuum bottle includes axially separable contacts within it, including at least one moveable contact. The vacuum interrupter further includes an operating mechanism including a clevis configured to reciprocate the moveable contact. The vacuum interrupter further includes a seal between the vacuum bottle housing and the operating mechanism sealing the operating mechanism from the interior of the vacuum bottle, wherein the seal includes a first end and a second end, the first end coupled to the clevis and the second end coupled to the vacuum bottle housing.

A medium voltage circuit breaker in a high pressure subsea environment includes: a vacuum circuit breaker; and a drive in a pressure tight housing. For an electrical three-phase arrangement, one vacuum circuit breaker per phase is arranged in a separate pole housing each, and the resulting three pole housings are mounted to a common base compartment, in which three drives for the three vacuum circuit breakers are arranged. The three pole housings and the common base compartment are attached such that they commonly form a pressure tight compartment.

A method for assembling a housing for a high voltage electrical switch includes providing a tubular body having a top portion and a bottom portion opposite the top portion, wherein the tubular body is configured to receive a vacuum bottle assembly within the tubular body; sliding a first shed sleeve over an outside surface of the top portion without creating a permanent bond, wherein an interior surface of the first shed sleeve forms a dielectric interface between the outside surface of the top portion and the interior surface of the first shed sleeve; and sliding a second shed sleeve over an outside surface of the bottom portion without creating a permanent bond, wherein an interior surface of the second shed sleeve forms a dielectric interface between the outside surface of the bottom portion and the interior surface of the second shed sleeve.

A vacuum circuit breaker 10 comprising a vacuum interrupter 12 coupled between upper 18 and lower 20 terminals and being operable to make or break an electrical connection between the upper and lower terminals. The circuit breaker has a body 22 formed from electrically insulating material, the vacuum interrupter being located in an internal chamber of the body. The lower terminal 20 comprises a hollow body 26 that forms part of the internal chamber and which is shaped and dimensioned to allow the vacuum interrupter 12 to pass through it. An electrical connector device 50 has a movable part 52 that is connected to the movable contact and an annular fixed part 54 that is connected to the lower terminal 20. The movable part 52 is connected to the first part 54 by flexible connectors 56, and has a socket (58) for engaging an electrical connector 60 of the vacuum interrupter 12. A pulling rod 16 is coupled to the movable contact via the electrical connector 60.

A vacuum circuit breaker comprising a vacuum interrupter (12) coupled between upper (18) and lower (20) terminals and being operable to make or break an electrical connection between the upper and lower terminals. The circuit breaker has a body 22 formed from electrically insulating material, the vacuum interrupter being located in an internal chamber of the body. The circuit breaker body is arranged to provide an isosceles triangle between the upper (C) and lower (A) terminal connection interfaces. This allows the same design of both upper and lower external connectors 80, 82. A pulling rod (16) coupled to the vacuum interrupter comprises a core (70) of heat-resistant plastic co-moulded with a shell (72) formed from impact resistant plastic.

A medium voltage pole assembly which includes a supporting frame, a pole insulator having a first and a second electrical terminal protruding therefrom, and a pole body housed within the pole insulator and having a first and a second electrical contact couplable and uncouplable with each other and respectively electrically connected to the first and second electrical terminal. The supporting frame includes first coupling means including a first coupling surface and the pole insulator includes second coupling means including one or more flaps slidingly couplable to the first coupling surface and mechanically fixing the pole insulator to the supporting frame.

An underarm gang operated vacuum break switch (underarm switch) has an electrically live portion under a mounting arm, which provides advantages over the standard vacuum break switch, which have the electrically live portion above the mounting arm. Because the non-electrified mounting arm is above the electrified portion, the underarm switch is safer for perching birds and other wildlife. The nature of the underarm switch also provides other benefits including a disconnect blade that when opened creates a visual gap to ensure electrical discontinuity along with a safety locking arm tied to deactivating the underarm switch. Adding to the safety measures is a visual indicator that shows an electrician when the switch is live and safe to open the disconnect blade. Other safety measures include a shock absorber assembly and inertia slowing mass protecting electrical contacts within the vacuum break switch from failing.

The invention relates to a high-voltage switching device comprising a vacuum chamber and to a switching system comprising a high-voltage switching device. The invention further relates to a method for manufacturing a high-voltage switching device comprising a vacuum chamber. The high-voltage switching device has a cast housing 1 consisting of a casting resin, which encloses the housing body 3 of the vacuum chamber 2, which has a fixed contact 4A and a movable contact 5A, an intermediate layer 3A being provided between the inner wall of the cast housing 1 and the outer wall of the housing body 3 of the vacuum chamber 2. The high-voltage switching device is distinguished in that this intermediate layer is a casting resin layer 3A, the glass transition temperature of the casting resin layer being between 10 and 40 C. In a construction of this type, no tears in the coating or casing of the housing body of the vacuum chamber and no external flashovers on the housing body have been found in tests.

An apparatus is disclosed comprising an interrupter and a first internal contact disposed within the interrupter; wherein an external terminal of the interrupter is configured for serving as a terminal in a switching mechanism; and wherein the first internal contact and the external terminal form opposite ends of a unitary conductive bar.

The present disclosure relates to a bypass switch used in a super-high voltage direct current transmission sub-module including a case; a first bus bar; a second bus bar; a fixing contact provided in a hollow part and connected to the first bus bar; a movable contact provided in the hollow part, and connected to the second bus bar so as to come into contact with or be separated from the fixing contact; an insulating cover coupled to the rear surface of the second bus bar, and having an accommodation part therein; a movable part extension rod provided on the accommodation part and coupled to the movable contact; and an actuator provided on the rear part of the insulating cover, and providing power for moving the movable part extension rod.