A power distribution assembly includes a first conductor having a first conductor end and a first shape in cross-section and a second conductor having a second conductor end and a second shape in cross-section. A splice couples the first conductor end to the second conductor end. An insulative boot has a first opening of the first shape, wherein the insulative boot encompasses the first conductor end. The insulative boot also has a second opening having the second shape, wherein the second opening encompasses the second conductor end. The insulative boot has a cavity between the first end and the second end, wherein the cavity is configured to encompass the splice.

A compact busway system for low and medium voltage application is described. In particular, the described compact busway system is designed for low and medium power distribution systems for high current applications. The described compact busway system has a enclosure assembly with at least two side mount supports affixed to the enclosure assembly and at least two horizontal supports, a first horizontal support and a second horizontal support, which are connected and perpendicular to the at least two side mount supports. The compact busway system further includes at least one busbar affixed between the first horizontal support and the second horizontal support, at least one strap connected to the first horizontal support and the second horizontal support, and at least one ground bus connected to the enclosure assembly.

A modular data center includes an outer wall having an opening formed therein. The opening is configured to enable a busway to pass through the outer wall. The modular data center further includes an electrical box configured to be coupled to the busway. The electrical box is positioned inboard with respect to the outer wall. The modular data center further includes a shroud configured to extend through the opening of the outer wall. The shroud includes a plurality of outer edges coupled to an outer surface of the outer wall. The modular data center further includes a cover, including a cover opening, configured to enable the busway to pass through the cover opening, and to at least partially seal the opening of the outer wall having the busway passing therethrough.

A hermetic portion on the side of a main body portion of a gas insulated switchgear and a hermetic portion of a bushing tank which has polymer bushings connected to the main body portion are configured separately, and electrical connection between the main body portion side and the bushing tank is carried out in an open portion. A mid tank is provided in the rear of the main body portion in which a switching apparatus is housed, and conductor portions which are horizontally led out from the main body portion are led into the mid tank, bent upward, and connected to bushings on the top of the mid tank. Cables are extended downward from the bottom of the bushing tank disposed above the mid tank via a support panel, and in the open portion, the cables are connected to the bushings.

A compact busway system for low and medium voltage application is described. In particular, the described compact busway system is designed for low and medium power distribution systems for high current applications. The described compact busway system has a enclosure assembly with at least two side mount supports affixed to the enclosure assembly and at least two horizontal supports, a first horizontal support and a second horizontal support, which are connected and perpendicular to the at least two side mount supports. The compact busway system further includes at least one busbar affixed between the first horizontal support and the second horizontal support, at least one strap connected to the first horizontal support and the second horizontal support, and at least one ground bus connected to the enclosure assembly.

An apparatus includes an enclosure comprising first and second abutting compartment and at least one cable passing between the first and second compartments through a sealing multi-cable transit mounted in a wall shared by the first and second compartments. The first compartment may contain arc-generating equipment and the second compartment may contain equipment vulnerable to arc damage. The first compartment may include a medium-voltage cubicle and the second compartment may include a low-voltage control cubicle.

A cable adapter that is operable to electrically couple an existing switchgear cable used for old switchgear to a connection location on new switchgear. The adapter includes an elbow portion that is configured to be electrically coupled to a connector for the switchgear cable and an extension portion that is electrically coupled to the elbow portion. The adapter also includes a cylindrical connection portion electrically coupled to the extension portion and being configured to be electrically coupled to the new switchgear at the proper location. In one embodiment, the elbow portion, the extension portion and the connection portion combine as a single piece member including an internal conductor, a dielectric insulation rubber layer covering the internal conductor and an outer semi-conductive rubber layer covering the insulation layer, where the rubber layers are molded over the conductor.

A motor control center includes an enclosure comprising an isolation switch, a main contactor device, and a ground switch device. The isolation switch is selectively manually operable between a connected state and a disconnected state. In the connected state the isolation switch is adapted to conduct electrical power from an associated power source to the main contactor device and wherein the isolation switch in the disconnected state interrupts conduction of electrical power from the associated power source to the main contactor device. The main contactor device is selectively operable between a conductive state and a non-conductive state, wherein the main contactor device is adapted to electrically connect the isolation switch to the ground switch device and to an associated electrical load when the main contactor device is in its conductive state and wherein the main contactor device disconnects said isolation switch from the ground switch device and the associated electrical load when the main contactor device is in its non-conductive state. The ground switch device is manually operable from an open, ungrounded state in which the main contactor device is electrically disconnected from a ground path to a closed, grounded state in which the main contactor device is electrically connected to the ground path. The motor control center further includes an interlock device operably connected between the isolation switch and the ground switch device, wherein the interlock device prevents movement of the isolation switch from the disconnected state to the connected state when the ground switch device is in the grounded state.

A gas insulated switchgear (GIS) system is provided including at least two separate modules including components of GIS, the at least two separate modules being independent of one another and configured to be assembled into the GIS system at a destination, wherein one or more of the at least two separate modules includes one of cabling and a solid insulated bus bar to connect the GIS system to an electrical power system at the destination. Related cabling modules are also provided.

Fault-tolerant power distribution systems for modular power plants are discussed. The systems enable the transmission of a portion of the power generated by a modular power plant to remote consumers. The systems also enable the local distribution of another portion of the generated power within the power plant. The various fault-tolerant systems enable the plant to continuously, and without degradation or disruption, transmit power to remote consumers and distribute power within in the power plant in the event of one or more faults within the distribution system. The various embodiments include redundant power-transmission paths, power-distribution module feeds, switchgear, and other hardware components. Such redundant transmission paths and hardware enable the systems to continuously, and without degradation or disruption, transmit power to remote consumers and locally distribute power to the power plant when one or more faults occur within one or more of the redundant power-transmission paths and/or hardware components.