Abstract: A hybrid gas-insulated switchgear constitutes an electrical circuit for a single-line diagram unit by arranging one first standardized module and two second standardized modules in a single row such that the central axes of tanks are generally aligned and electrically connecting them to each other. In the standardized modules, a circuit breaker and disconnecting switches are housed inside the tanks such that the disconnecting switches are positioned at first and second ends of the circuit breaker so as to line up generally in a straight line, and grounding switches are connected between the circuit breaker and the disconnecting switches.

Abstract: The invention relates to an electrical installation, especially a medium-voltage switchgear, comprising at least one encapsulated function module (FM), a decompression channel (DK) which is connected to said function module, and at least one inflow opening (EO . . . ) which connects the function module (FM) to the decompression channel (DK). The covering surface (DF 1,2,3) of the decompression channel (DK), opposite the inflow opening (EO . . . ), comprises at least one partial region which is obliquely oriented in relation to the inflow direction. Hot gases and high pressures produced during an accidental arc can thus be evacuated from the installation, without any risk to humans and buildings. Pressure channels are used, inter alia, in installations used in relation to medium-voltage technique for providing and distributing energy.

Abstract: An electric-power supply incorporates an electronic card with at least one rectifier and one output line of the rectifier. The output line is formed of at least one first bar made of conductive material, terminating with one first output end, and at least one second bar made of conductive material, terminating with one second output end. The two output ends form the positive and negative output poles of the power supply for connection to a load. Means are provided for electrical and mechanical connection for the first bar and the second bar to the card, and on at least one of the two bars is carried at least one electronic component of said rectifier.

Abstract: A bus assembly for switchgear includes a pair of elongated members each of an L-shaped cross section with a lateral side and a transverse side integral with the lateral side. The elongated members are positioned in a juxtaposed spaced apart relationship forming a hollow rectangular tube wherein the lateral sides are generally parallel to each other and the transverse sides are generally parallel to each other. Support members connected to the lateral sides may be U-shaped components engaging lateral exterior sides of the elongated members and may be connected to an element having flange which extends from the bases of the U-shaped components for connection to a horizontal bus bar. A connecting device may be provided with separated extending legs adapted for attachment to components of a laminated horizontal bus member.

Abstract: A connector for conductor bars, which are in-line or extend at a right angle with regard to one another and which rotate 90° around their longitudinal axes. The connector is comprised of a first contact piece and of a second contact piece of which the first contact piece is fastened in an eccentric manner, with regard to the longitudinal axis thereof, to the second contact piece at a position on the second contact piece that is also positioned in an eccentric manner with regard to the longitudinal axis. The first contact piece is connected to the second contact piece in such a manner that their longitudinal axes extend at a right angle with regard to one another but at a distance from one another so that the contact surfaces of the contact pieces do not intersect or overlap one another, but are adjacently arranged such that the pivot by 90° towards one another.

Abstract: A distribution frame for film conductors is provided having a first busbar, arranged in a recess in a part-shell, for a first signal path and a second busbar, arranged in a recess in a part-shell, for a second signal path. Each busbar can be connected, via a bridging element, to two or more film conductors coupled to electrical components, the connection between a busbar and an electrical component can be released by moving the bridging element. The two part-shells abut against one another at an interface when the distribution frame is assembled. The film conductors of a signal path are routed through one or more ducts in a part-shell and are bent back at the end of the duct(s) such that the bent-back part of the film conductors is arranged in the region of the interface between the part-shells when the distribution frame is assembled.

Abstract: For use in switchgear equipment having channel bus bars joined together at a bus joint, there is provided a channel bus splice assembly and method. The channel bus splice assembly comprises switchgear or switchboard equipment having channel bus bars joined together at a bus joint, there is provided a channel bus splice assembly. The channel bus splice assembly comprises an inner splice plate defining a plurality of throughbores. A sliding clamp plate is configured to reciprocally move within the inner splice plate. The sliding clamp plate defines a plurality of access ports. A pair of nut plates is coupled to the sliding clamp plate and having threaded orifices corresponding to selected throughbores in the inner splice plate. An outer splice plate having a plurality of throughbores corresponding to the threaded orifices in the nut plates.

Abstract: Emitter electrodes (Es) and collector electrodes (Cs) of elements (101 to 104) are connected to bus electrodes (361 to 364) of a bus bar (351), respectively. The bus bar (351) contains seven layers including four insulating layers (not shown) and three conductive layers (shown) interposed between the insulating layers. Namely, each of the bus electrodes (361 to 364) is connected to one of the conductive layers corresponding to one of a positive electrode (P), a negative electrode (N) and an intermediate electrode (L). The collector electrodes (Cs) of the elements (103 and 104) are connected one over the other to the bus electrode (361). The emitter electrodes (Es) of the elements (103 and 104) are connected one over the other to the bus electrode (362). The collector electrodes (Cs) of the elements (101 and 102) are connected one over the other to the bus electrode (363). The emitter electrodes (Es) of the elements (101 and 102) are connected one over the other to the bus electrode (364).

Abstract: For use in switchgear equipment having bus bars joined together at a bus joint, there is provided a bus joint cover assembly and method. The bus joint cover assembly comprises a collar member having a snap slot. A cap member having a boss snap is configured to engage the snap slot. The cap member is configured to telescopically join with the collar member around the bus joint wherein the bus joint is contained within the bus joint cover assembly. The bus joint cover assembly can include a side cover member configured to position between the collar member and the cap member. The side cover member can be configured to provide a passage for bus bars and can be configured as a bus end cover.

Abstract: In order to provide a converter station for a high-voltage DC connection between two three-phase AC voltage networks, having a converter building which has a number of floors, and in which transformer units, converter devices, filter units, a gas-insulated switchgear assembly with feeder units, at least one cooling system, a DC cable pot head for electrical connection of a high-voltage cable carrying direct current, a smoothing reactor and gas-insulated busbars for electrical connection of these components are arranged, while maintaining its compact design and the arrangement of its components in a closed building, whose cost is low and which has a physically simple design, the invention proposes that the DC cable pot head and the smoothing reactor are arranged on the same floor as the converter valves and are electrically connected to one another via an air-insulated connecting device, with an air-insulated isolating switch being provided in order to produce an isolating gap between the DC cable pot head and

Abstract: An apparatus for linking together power switching devices having intra-converter connection terminals to form a power conversion assembly, the apparatus comprising a planar bus bar including positive and negative DC bus layers and insulating layers that insulate each of the DC bus layers, the bar also including at least a first external insulating layer that forms a first external surface of the bar, the bar also forming at least first and second linking edges and first and second pluralities of linkages formed along the first and second linking edges, respectively, each linkage linked to one of the positive and negative DC bus layers and configured to be linkable to at least one of the power switching device intra-converter connection terminals, in some cases positive and negative DC bus linkages are also provided to render the conversion assembly extremely versatile.

Abstract: A bus brace comb assembly for use in a switchgear assembly. The switchgear assembly has a channel bus bar for conveying electrical current in each phase of the switchgear assembly. The bus brace comb assembly holds the bus bar in place against magnetic forces associated with short-circuit currents in the switchgear bus bar. The bus brace comb assembly comprises a front comb assembly including a first bus clip configured to position the bus bar and a front brace coupled to the bus clip. A rear comb assembly including an interlock clamp configured to engage the channel bus bar and a second bus clip secured to the interlock clamp with a fastener and a rear brace coupled to the interlock clamp/bus clip assembly. A flange of the channel bus bar is pinched in the interlock clamp/bus clip assembly to secure channel bus bar in the switchgear assembly.

Abstract: The invention provides a “hybrid” high voltage multiphase distribution substation having one or more sets of busbars including at least one air-insulated set of busbars (10), the substation having feeders (A, B, C, D) for air-insulated lines (21, 22) placed in substantially parallel bays (11, 12) on either side of the set(s) of busbars (10) and including metal-clad breaking and switching modules each formed by metal cladding (2) containing, for each electrical phase passing through a module, breaking and disconnection systems connected to a phase conductor (6) in an insulating gas, an end disconnection system (4A, 4B) being placed at each of the two ends (13, 14) of a module, the substation being characterized in that the feeders are opposite in facing pairs, and in that two opposite feeders (A, B) are electrically interconnected for each electrical phase via a single module (1) when the break systems (3A, 3B, 3C) and the end disconnector systems (4A, 4B) of said module are closed, said end discon

Abstract: An electronic system has a power supply, multiple backplanes, and a bus bar assembly electrically interconnected between the power supply and the multiple backplanes. The bus bar assembly includes a power supply member that couples to a power supply and a backplane member that couples simultaneously to multiple backplanes. The backplane member defines multiple rows of holes. Each row of holes includes at least two holes. The bus bar assembly further includes a set of fasteners that fasten the power supply member to the backplane member in order to provide a conductive path between the power supply and the multiple backplanes. The multiple rows of holes defined by the backplane member enable the backplane member to fasten to power supply members having different designs for flexibility.

Abstract: An elongated and hollow wiring track includes a rectangular plastic cover whose edges carry female hinge members and a U-shaped plastic channel having a flat outer surface, two inclined side walls that extend in a common direction at 45-degrees away from the flat outer surface, and two perpendicular side walls that extend in a common direction away from the inclined side walls perpendicular to the flat outer surface. Each of the perpendicular side walls carries a male hinge member that releasably mates with a female hinge member when the U-shaped channel is pivotally mounted onto the cover to form an internal wire-cavity. A DIN rail mounted on the outer surface of the U-shaped channel. A terminal strip is mounted on an exterior surface of each of the inclined side walls. The number N of metal busses are mounted on each of the terminal strips. A plurality of terminal-groups are mounted on each of the terminal strips.

Abstract: Support members for a busbar assembly are provided. The support members include a body formed of an electrically insulative material and at least one receiving formation in the body and configured to receive an electrical conductor. A strengthening insert is located substantially entirely within the body to electrically insulate the strengthening insert from the electrical conductor. The strengthening insert is a material different from the electrically insulative material of the body. Support structures and busbar assemblies and methods of making the support members are also provided.

Abstract: A gas-insulated switchgear of an 1½ CB system, in which three circuit breakers are electrically connected in series between a pair of buses and a connecting line for supplying and receiving electric power is led out from between the circuit breakers, is characterized in that new connecting lines for supplying and receiving electric power are led out from the main buses through disconnecting switches to a diameter which is an end portion of the gas-insulated switchgear. A leading out side of the connecting lines is outside the main bus, and an installation area of the gas-insulated switch gear is not increased.

Abstract: An electric connection box having a circuit formed inside a case (upper case) by arranging vertical bus bars in parallel inside the case. Terminals project from one side of each of the vertical bus bars. Pressure welding tabs having a pressure-welding slot respectively and pressure-welding pieces project from the other side of each of the vertical bus bars, with the pressure welding tabs and the pressure-welding pieces vertical to a longitudinal direction of the vertical bus bars. The vertical bus bars are arranged in parallel, and the pressure-welding piece of the vertical bus bar is connected by pressure welding to the pressure-welding slot of the pressure-welding tab.

Abstract: The junction box according to the invention includes a housing defined by a lower case and an upper case. A busbar substrate disposed within the housing includes a plurality of busbar substrates. The pier assembly is disposed on at least one of the lower case and one of the plurality of busbar substrates. The pier assembly either accommodates another of the plurality of busbar substrates or supports another of the plurality of busbar substrates. In one embodiment, the pier assembly is disposed on the lower case. In another embodiment, the pier assembly is disposed on one of the busbar substrates. In yet another embodiment, the pier assembly is disposed on the upper case. A method for assembling the junction box according to the invention includes providing a pier assembly for positioning a busbar substrate assembly and disposing a busbar substrate of the busbar substrate assembly in the lower case. The busbar substrate either receives the pier assembly therethrough or is supported on the pier assembly.

Abstract: A device for connecting bus bars of a bus bar system with connectors of a piece of electric installation equipment using connecting pieces, which are cut, angled and/or bent from a rectangular flat material. The cost for different bar elements for the connection can be reduced without a need to surrender adaptation to the transmission of current strenghts of different sizes because the connecting pieces are respectively formed by several identical bar elements which are held, vertically with respect to their width, at a distance from each other which corresponds to a thickness of the flat material. The bar elements are maintained apart by a packaging holder which has alternating spacers and holding plates perpendicular with respect to a broad side of the bar elements. The holding plates delimit receivers for the bar elements on both sides of the packaging holders.

Abstract: The invention relates to a contact disc (1) for a conducting plate (2) of busbars, comprising a contact surface (3) projecting upwards with respect to the surface of the conducting plate where the contact surface (3) is integral with the conducting plate (2) and where the segment-shaped slots (4a, 4b 14) are arranged all around, to make possible a deformation of the plate without a significant reduction of the surface of the contact disc provided for receiving an electronic component.

Abstract: A large number of switching devices, for example contactors, can be supplied with power and information in particular in switchgear cabinets. A multilayer supply board includes a large number of suitable recesses with fingers which form contacts. The recesses preferably form an array with m rows and n columns in the supply board. The multilayer supply board preferably includes at least a number of layers of electrically conductive boards which are insulated from one another.

Abstract: In order to realize reduction of a gas insulated switchgear, a connection bus for connecting potential current transformer units, a first connecting unit, power receiving units and transformer connecting units or for connecting the potential current transformer unit, a bypass unit, a first connecting unit, the power receiving units and transformer connecting units is arranged horizontally to a connecting unit and in parallel thereto. Thereby height dimensions of the transformer connecting units, potential current transformer units and transformer connecting units can be made small and thus a height dimension of the entire apparatus can be made small.

Abstract: An access panel located in a motor control center for inspecting and accessing various bus connections, for example, a particular phase vertical to horizontal bus connection or a horizontal bus bar splice connection. The surface of the panel includes one or more apertures positioned to align with one or more bus bar connections. Covers are pivotally mounted along the surface of the panel adjacent to the apertures in order to access and isolate the bus connections within the motor control center. The cover is mounted to the surface of the panel such that it can be moveable between open and closed positions.

Abstract: The described current distributor has a bus bar, a plug socket connected to the bus bar, at least one contact element which comprises an access connection, a consumer tapping and an element connecting the access connection and the consumer tapping, at least one plug connection for the plug contacts of a protective switch, which has a plug socket of the bus bar and an access socket of a contact element, and two signaling lines. In order to produce such a current distributor inexpensively and to ensure reliability of operation, it is provided in accordance with the invention that the contact element comprises a one-piece member.

Abstract: A bus bar system having several bus bars spaced apart from each other in a first connecting plane and of an essentially square cross section and having T-shaped connecting grooves cut into all outsides for a connection with electrical installation devices having flat connectors in a second connecting plane, which is arranged perpendicular to the first connecting plane. With specially embodied connecting and insulating elements, it is possible to displace the connecting planes of the bus bars and of the flat connectors of the installations device parallel and perpendicular with respect to each other without it being necessary to perform elaborate matching assembly work at the site.

Abstract: A bus bar in which the noise of an apparatus connected to a bus bar is absorbed by the frame to reduce the noise propagated and radiated from the power feed cable and in which the apparatus may be reduced in size to achieve space saving while being reduced in cost. A plurality of power source layers and a plurality of frame grounding layers are arranged neighboring to one another with dielectric layers in-between, while a plurality of frame grounding layers are arranged neighboring to each other with dielectric layers in-between to provide a multi-layered structure including the frame grounding layers. The frame grounding layers are contacted with a fastener with a casing of a frame apparatus in surface contact to constitute a stable grounding of low impedance, while absorbing the noise proper to the insulating layer by interlayer capacitative coupling.

Abstract: A bus bar system having several bus bars spaced apart from each other in a first connecting plane and of an essentially square cross section and having T-shaped connecting grooves cut into all outsides for a connection with electrical installation devices having flat connectors in a second connecting plane, which is arranged perpendicular to the first connecting plane. With specially embodied connecting and insulating elements, it is possible to displace the connecting planes of the bus bars and of the flat connectors of the installations device parallel and perpendicular with respect to each other without it being necessary to perform elaborate matching assembly work at the site.

Abstract: A drawout unit is dimensioned to make more efficient use of the space within the drawout unit. Devices within the drawout unit are positioned in a generally vertical configuration. A bus brace serves as a line/load terminal assembly. The bus brace has receptacle ports enabling lugs to maintain electrical contact with vertically oriented bus bars on the line terminals and transfer current to horizontally oriented load terminals. Output cables extend horizontally from the load terminals and form a single right angle bend before passing out of the bottom of the drawout unit through an exit port.

Abstract: A switchgear comprising a cable compartment, a bus conductor compartment for housing bus conductors arranged at the upper portion of a cable compartment with their back faces in alignment and an interrupter compartment disposed at the boundary portion between the bus conductor compartment and the cable compartment to intrude from the front. An upper insulating partition wall is disposed in the upper half portion of the interrupter compartment for defining a partition between the bus conductor compartment and having a penetration hole through which the terminal of the interrupter can pass, and a lower insulating partition wall is disposed in the lower half portion of the interrupter compartment for defining a partition between the cable compartment and having a window through which the terminal of the interrupter can pass.

Abstract: The invention concerns a horizontally divided switchgear, including compartments for high voltage and for cable connection. The cable connection compartment is common to one or more switchgear cubicles and is a compartment separated from the high voltage compartment(s) of the cubicle(s). In the switchgear is included one or more switchgear cubicles defined by vertical (12, 13, 14) and horizontal (15, 16) walls. The cubicle is arranged with only high voltage equipment, while connection means (18) for incoming and outgoing current cables are arranged exteriorly underneath the lower horizontal wall (16) of the cubicle. Bushing means (17) for cable conections are arranged in the lower horizontal wall (16).

Abstract: A bus bar is installed on a relay box accommodating relays. An exposed core wire at one end of an input line and an exposed core wire at one end of a bypassing line are crimped to a crimping portion of a first connection terminal. An exposed core wire at one end of an output line and an exposed core wire at the other end of the bypassing line are crimped to a crimping portion of a second connection terminal. The first and second connection terminals are connected with the bus bar by means of a respective screws tightened into the bus bar.

Abstract: A chassis assembly for receiving power supply modules therein. The chassis assembly includes: (1) a cabinet, (2) an elongated bus bar assembly configured to be supported within the cabinet from a mount coupled to the cabinet, the bus bar assembly having a pair of conductors capable of receiving a terminal connector of a power supply module received into the cabinet and (3) a shelf, oriented laterally with respect to the bus bar assembly, that supports at least one power supply module received into the cabinet, the bus bar assembly being substantially free of terminal connectors and adapted to eliminate a need for support of a portion of a weight of the bus bar assembly apart from the mount.

Abstract: Power switches are fix mounted in a switchgear cabinet by providing terminal sections on power conductors at the rear face of the switch housing which extend vertically beyond the housing. The power switches slide into cells in the cabinet through a front opening with projections on the sides of the switch engaging slots in mounting panels in the cabinet. The terminal sections of the power conductors are then accessible through the front opening for connection to the buses in the switchgear cabinet. Runbacks secured to the lower power conductors on the bottom power switch extend into a rear compartment in the cabinet for the connection to power cables as the power switch is inserted into the front compartment. A unitary arc shield/wire tray slides into the front compartment above the power switches after connection of the terminal sections to the buses and is removable to provide subsequent access to the power connections.

Abstract: A substation for high voltage switching and a method of building the same. The substation includes an air-insulated high voltage switchgear station, a transformer and a medium voltage switchgear station. The high voltage switchgear station is arranged inside of a building.

Abstract: A device, used in particular in telecommunications technology to supply power to parallel-connected, electrical loads has side-by-side arranged potential lines. These are secured inside a connecting housing, with connections for supplying the operating potential. The connections supply plug-in modules for connecting individual loads, which modules are fitted against the connecting housing in longitudinal direction of the potential lines. The potential lines are configured as rigid, parallel bus bars that project on a side from the connecting housing. With the aid of passages that make contact with the bus bars, the plug-in modules are fitted side-by-side onto the bus bars, such that they fit against the connecting housing or against each other, and are frictionally secured.

Abstract: The invention relates to switch gear comprising at least one group of n power switches (4), which extend substantially in a longitudinal direction perpendicular to the front of the switch gear, at least one busbar compartment (13,13′) containing n busbars (14,14′) for each group of n power switches (4), which busbars (14,14′) are positioned parallel to the front, wherein each busbar compartment (13,13′) is enclosed by at least four walls, two of which are perpendicular to the front, at least one group of n busbar disconnecters (3,3′), for making and breaking contact between busbars (14,14′) and respective output terminals (21) of the power switches (4), wherein the output terminals of the power switches (4) are constructed as coupling elements (21), to each of which a linkage (24) is connected and a further linkage (24′) can be connected in an opposing direction perpendicular to the longitudinal direction, wherein the n busbars (14,14′) extend along one of the w

Abstract: Main circuit breakers and/or tie circuit breakers are connected by upper and lower disconnects to upper and lower sections, respectively, of split risers in a low voltage switchgear assembly. An upper horizontal bus is connected to the upper sections of the split risers while a lower horizontal bus is connected to the lower sections. However, with the main or tie breaker mounted in the "C" position of a switchgear section, the gap between the upper and lower sections of the split risers is positioned vertically such that one of the phase conductors of the lower horizontal bus is above the gap. A unique connector extends downward from this phase conductor and is connected to the corresponding phase of the lower section of the vertical bus through the lower stab which engages the lower disconnect for the main or tie breaker.

Abstract: The interface conductors, stabs and runbacks, which are engaged at first ends by quick disconnects on electrical apparatus in a switchgear assembly, are fabricated from a stacked pair of elongated, flat conductors secured together at the first ends by elongated fasteners which are compressed into countersunk through apertures in the flat conductors to form a joint with no lateral projections. The interface conductors are supported adjacent the disconnects by a first support having a base member with through openings in which the conductors are snugly supported, and rigid projections with planar surfaces extending from the base member toward the quick disconnects alongside the openings and against which the interface conductors are secured adjacent free ends of the projections. A second support spaced rearward of the first support provides additional support for the runbacks. Interphase supports formed by C-channels are provided for the runbacks between the first and second supports.

Abstract: A device for attaching busbars of square or rectangular cross section on a support rail using electrically non-conducting support elements, which can be connected with the support rail and form a busbar receptacle adapted to the cross section of the busbar. With a simple fastener, assembly is considerably simplified because two post-shaped supports per busbar can be attached as support elements on the support rail, wherein spacing between the supports is matched to the width of the busbar and a height is matched to the thickness of the busbar. A base plate is arranged between the two supports, which insulates the busbar receptacle against the support rail and which is captively held between the holders. The ends of the supports facing away from the support rail can be closed by a strip.

Abstract: Hollow risers in switchgear are preferably formed by a confronting pair of spaced apart U-channels. Stab conductors for connecting switching apparatus in the switchgear to the risers have a pair of flat members straddling and secured to the two U-channels by mounts which include backing plates bearing against the inner surfaces of the confronting legs of two U-channels and bolts extending through the stab conductors and U-channel legs and engaging threaded apertures in the backing plates. To accommodate a range of current ratings, the confronting channels can have first and second leg thicknesses t.sub.1 and t.sub.2, which can be different but the outer widths of the channels are all the same. The backing plates have a first surface with a third thickness in one section and a fourth thickness in a second section. This first surface bears against the U-channel legs when the legs are of different thicknesses and t.sub.1 plus t.sub.3 is made equal to t.sub.2 plus t.sub.4.

Abstract: A support and electrical power supply device comprises a mounting plate supporting an electrical switchgear apparatus and housing branch conductors extending perpendicularly to a busbar. The branch conductors present identical lengths. The connection strips are arranged close to the opposite terminal parts of the branch conductors and comprise orifices arranged symmetrically with respect to the horizontal midplane of the mounting plate to enable fitting of the connection parts with the lineside terminals or the loadside terminals of the switchgear apparatus. Two connection possibilities of the switchgear apparatus are possible at the time of installation to achieve a lineside or a loadside power supply. The same mounting plate can also be used for supply of a single switchgear apparatus or of two switchgear apparatuses with opposite feeders.

Abstract: The neutral cross bus in a switchgear assembly formed from two sets of side-by-side cabinets includes first and second neutral buses for the respective sets of cabinets. Each neutral bus is made up of a stack of flat conductors oriented horizontally in a main section extending across the cabinets of the set and vertically in a terminal section confronting the terminal section of the other neutral bus. The vertically oriented terminal sections are easily bolted together despite their limited accessibility when the two sets of cabinets are installed side-by-side. The flat conductors of the neutral cross bus are supported in their horizontal main sections by spaced supports formed by planar members with spaced horizontal slots set on edge and mounted by end flanges.

Abstract: A curved low impedance laminated bus assembly includes a curved first sheet of relatively thin conductive material forming an AC bus conductor and a curved second sheet of relatively thin conductive material forming a -DC bus conductor directly connected to a -DC line side of a DC energy storage device. A curved third sheet of relatively thin conductive material forms a +DC bus conductor directly connected to a +DC line side of the DC energy storage device and is connected to the AC bus conductor through a +DC switch. A plurality of dielectric sheets are laminated between the AC bus conductor, the -DC bus conductor, and the +DC bus conductor.

Abstract: A high-voltage hybrid design switchgear with three power switch housings (1, 2, 3) arranged next to one another in series, each of which is connected to a horizontally arranged cylindrical adapter box (14, 15, 16). The adapter boxes (14, 15, 16) are arranged with their axes in parallel. Each adapter box has at least one high-voltage outdoor terminal (22, 23, 24) at a different distance from the series of power switch housings (1, 2, 3).

Abstract: A three-phase electrical distribution system includes an elongate housing of substantially square cross-section and a plurality of frames connected between the top and rear walls of the housing. Each frame includes three sections arranged in a stepped manner to locate and mount one power phase busbar by a standoff insulator near the rear wall, a second power phase busbar forwardly and vertically above the first busbar, and a third power phase busbar located vertically above and forwardly of the other busbars to minimize the cross-sectional housing space while spacing such busbars to prevent arcing therebetween or arcing to the housing or to the frames. The ground and neutral busbars are mounted via insulating standoffs to the bottom wall of the housing forwardly of the power busbars. An access opening is located in the bottom wall at various intervals to provide for hookup of power cables to the busbars via an openable front wall spanning between a pair of adjacent frames.

Abstract: A laminated bus assembly including a high power coupler to provide a low impedance, low noise laminated bus assembly for a switched converter that includes a plurality of switch pairs to convert between an AC power line and a DC device. The laminated bus assembly includes a first conductive layer, a second conductive layer, and a third conductive layer. A dielectric layer is laminated between each of the first, second, and third planes. The high power coupler includes a bushing positioned within the laminated assembly, including an engageable section for engaging with one of the conductive layers. A passage hole including an insulator ring is formed in intermediate conductive planes for passage of the bushing. A circuit layout includes a plurality of electrical connections between the switches, the AC, -DC and +DC bar conductors, and the DC device.

Abstract: A high voltage power receiving and transforming apparatus for consumer demands receiving power from two lines and supplying the power to respective transformers through instrument potential and current transformers. First circuit breakers at a primary side of the transformers, are arranged at both sides of the instrument potential and current transformers, second circuit breakers, at a receiving side, are arranged at both sides of said first circuit breakers. The circuit breakers and receiving portion connecting portion to the transformers, and the instrument potential and current transformer are connected by a duct line connection portion at a backside of the circuit breakers.

Abstract: An active filter device is provided for incorporation into a switchgear lineup. The switchgear lineup has a plurality of electrical sections including a main circuit breaker section and a load circuit breaker section spaced from the main circuit breaker section. The active filter device is applied as an integral part of the power distribution switchgear equipment, positioned between the main circuit breaker section and a load circuit breaker section. From a single location, power quality is improved for the aggregate of all loads connected to the switchgear and the upstream source. The power quality improvement may include harmonic current attenuation, harmonic voltage attenuation, load balancing, high speed power factor correction, and reduced magnitude voltage sags.

Abstract: Rectangular bus bars alternatively engaged in either of a pair of crossed slots in a support block secured in a panel board are locked in place by a locking device incorporated in a cylindrical terminal portion of each bus bar. The locking device includes an expandable ring seated in a circumferential groove in the cylindrical terminal portion. A pair of actuating pins are urged radially outward in diametrically opposed bores to wedge the expandable ring against the support block, by a tapered screw threaded into a central longitudinal bore in the terminal portion of the bus bar.