Electrical switchgear
AssigneeEaton Corporation
InventorsMichael H. Abrahamsen, Jon C. Beaver, Robert (Nmi) Yanniello, Chandrakant Z. Tailor, William E. Wilkie, II
Life of this patent
Estimating the term…
Abstract
An electrical switchgear comprises a front, a back and a switch arrangement. The switch arrangement comprises a terminal arrangement comprising an electrical contact for a bus and an electrical contact for a load connection which are spaced apart along an axial direction; and a device that is driveable into said terminal arrangement to a service position to make an electrical connection between said electrical contact for said load connection and said electrical connection for said bus. The electrical contact for said load connection is located closer to said back of said switchgear than is said electrical contact for said bus.
Claims14
A rear accessible electrical switchgear comprising a front, a back, a switch arrangement, and a rear accessible switchgear cabinet having a rear accessible compartment containing a load connection, the switch arrangement comprising a terminal arrangement comprising an electrical contact for a bus and an electrical contact for said load connection which are spaced apart along an axial direction;
- and
- a switching device that is moveable linearly in said terminal arrangement along said axial direction to a service position where it can make an electrical connection between said electrical contact for said load connection and said electrical contact for said bus, wherein said electrical contact for said load connection is located closer to said back of said switchgear than is said electrical contact for said bus,
- wherein said terminal arrangement further comprises an electrical contact for earth, which is spaced apart from said electrical contact for said load connection along said axial direction and is located closer to said back of said rear accessible electrical switchgear than is said electrical contact for said load connection, wherein, said switching device is moveable linearly in said terminal arrangement along said axial direction to an earth position to make an electrical connection between said electrical contact for earth and said electrical contact for said load connection, and
- wherein said switching device can make and break a circuit when in the service or earth positions.
An electrical switchgear comprising a front, a back and a switch arrangement, the switch arrangement comprising a terminal arrangement comprising an electrical contact for a bus and an electrical contact for a load connection which are spaced apart along an axial direction;
- and
- a switching device that is moveable linearly in said terminal arrangement along said axial direction to a service position where it can make an electrical connection between said electrical contact for said load connection and said electrical contact for said bus, wherein said electrical contact for said load connection is located closer to said back of said switchgear than is said electrical contact for said bus,
- wherein said switching device comprises a first device electrical contact and a second device electrical contact, wherein, in said service position said first device electrical contact engages said electrical contact for said load connection and said second device electrical contact engages said electrical contact for said bus.
An electrical switchgear comprising a front, a back and a switch arrangement, the switch arrangement comprising a terminal arrangement comprising an electrical contact for a bus and an electrical contact for a load connection which are spaced apart along an axial direction;
- and
- a switching device that is moveable linearly in said terminal arrangement along said axial direction to a service position where it can make an electrical connection between said electrical contact for said load connection and said electrical contact for said bus, wherein said electrical contact for said load connection is located closer to said back of said switchgear than is said electrical contact for said bus,
- wherein said terminal arrangement further comprises an electrical contact for earth, which is spaced apart from said electrical contact for said load connection along said axial direction and is located closer to said back of said switchgear than is said electrical contact for said load connection,
- wherein, said device is moveable to an earth position where it can make an electrical connection between said electrical contact for earth and said electrical contact for said load connection,
- wherein said switching device comprises a first device electrical contact and a second device electrical contact, wherein, in said earth position said first device electrical contact engages said electrical contact for earth and said second device electrical contact engages said electrical contact for said load.
A switch arrangement for an electrical switchgear, said electrical switchgear comprising three phases, said switch arrangement comprising three terminals, one for each phase, wherein each of said three terminals comprises a longitudinal axis, which longitudinal axes are arranged in parallel and define three parallel edges of a notional triangular prism,
- wherein each terminal comprises a first electrical contact and a second electrical contact spaced apart along said longitudinal axis,
- wherein each terminal comprises an insulating housing and each terminal's first and second electrical contacts are within said housing,
- wherein said housing is split into a plurality of separate sections along said axial direction,
- wherein said first electrical contact is in one of said separate sections and said second electrical contact is in another of said separate sections, and
- wherein a shutter is structured to be drawn into a space between said one of said separate sections and said another of said separate sections, in order to act as a physical barrier to said first and second electrical contacts.
Dependencies are inferred from the claim text.