298results about "Open bus-bar installations" patented technology

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.

The invention discloses a production method of conducting copper bars for a bus duct with a large flakiness ratio, belonging to the technical field of processing of non-ferrous metals. The production method is characterized by comprising the following steps of: upward continuously casting oxygen-free copper bars, continuously extruding copper bar billets, rolling, annealing, drawing, checking and packaging. By adopting the continuous extrusion technology to produce the copper bar billets, the continuous production can be realized, and the weight of each roll of copper bar billets can reach more than 3 tons. Moreover, because the copper bar billets are produced in a roll shape, the defect of cutting the head and the tail of each copper bar in the traditional production process is avoided, and the yield of the product reaches more than 90%. Meanwhile, by reasonably setting continuous extrusion process parameters, rolling rate and the like, the invention effectively improves the quality of the product and has the advantages of high purity, low oxygen content, high conductivity, excellent surface quality and the like. The product is detected to show that the content of Cu and Ag is greater than or equal to 99.97%, the content of O is less than or equal to 10ppm, and the conductivity is 98-101% according to the IACS.

The invention discloses a high-voltage resistant waterproof bus duct for wind power/nuclear power/water power and a manufacturing method thereof, the bus duct comprises bare buses and composite resin bodies which are poured and wrapped on the peripheries of the bare buses, wherein the bare buses are mutually separated by the composite resin bodies, the bus duct is a whole formed by curing the bare buses and the composite resin bodies, and the bus duct does not need a metal housing. As the bare buses of the bus duct are separated by the composite resin bodies with very high insulating property, the bus duct can avoid the interphase short circuit, thereby improving the safety performance of the bus duct, leading the withstand voltage strength of the bus duct to be very high, withstanding the voltage of 35kV and protecting the safety of the bus duct during the high-voltage work. Simultaneously, as the composite resin bodies have very strong water resistance and corrosion resistance, when the bus duct works underwater for a long time, the bus duct can not be corroded, thereby better protecting a current-carrying conductor in the housing and further ensuring the normal production for power supply.

A distribution line structure for electric power supply is provided with a pair of first conductors and a second conductor. Each of the first conductors is provided with a first main portion formed in a flat strip shape and first connection portions, and the second conductor is provided with a second main portion formed in a flat strip shape and second connection portions. The first conductors are connected with each other at the first connection portions. The first and second main portions are layered and separated each other by insulators. The second main portion is put between the first main portions.

The invention relates to an energy-saving bus slot, and particularly provides a low-cost energy-saving bus slot with a high-efficiency heat radiating structure with low resistance, low reactance, low line loss and less material consumption, wherein two bus lateral plates (1) which are symmetrically arranged and a bus cover plate (3) are used as overall supports for the bus slot, a lateral plate heat radiating sheet (2) is respectively arranged at the outer sides of the two bus lateral plates (1), the cover plate (3) is positioned at the outer sides of two folding edges of the two bus lateral plates (1), the bus lateral plates (1) and the cover plate (3) are connected into a whole through fasteners (4), and a space with a rectangular cross section is formed in an area surrounded by the bus lateral plates (1) and the cover plate (3). An insulating layer (6) is respectively arranged at the inner sides of the bus lateral plates (1), and a bus conductor (5) is positioned between the insulating layers (6).

A U-turn bus bar comprises a body portion constituting a linear essential part formed of a conductive plate member, having an overall thickness (t) and an overall width (2b); at least a terminal portion expanded in the direction perpendicular to the longitudinal direction of the body portion; and a connection hole formed at one end of the body portion. The body portion includes a U-turn bend formed by bending the body portion into a U-turn shape.

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.

The invention discloses a fire-resistant busway, which comprises a casing; a plurality of conductors arranged in parallel and at intervals in the casing, and the plurality of conductors are arranged at intervals with the casing; and an insulating layer coated on the outside of each conductor; The fire-resistant bus duct also includes a fire-resistant filler filled between the multiple conductors and between the conductors and the casing, so as to achieve insulation and fire resistance between the multiple conductors and between the conductors and the casing. The fire-resistant busway of the invention has strong heat dissipation, good fire-resistant performance and is safe and reliable.

In a power conversion device, cable connection positions of connections in which a plurality of bus bars is respectively connected to external line cables are non-overlapping with each other as viewed from a side on which the external line cables are pulled out.

The invention discloses a temperature protecting method of a low-voltage plug type bus duct and a joint thereof, comprising the following steps of: obtaining temperature values of points from an interior to an outer surface of the low-voltage plug type bus duct and the joint thereof by introducing a finite volume method, namely obtaining temperature fields from the interior to the outer surface of the low-voltage plug type bus duct and the joint thereof; by judging whether the maximum temperature value and the environmental temperature difference of the temperature value in the internal points exceed the internal exotherm stipulated by the Chinese standard, ensuring whether the low-voltage plug type bus duct and the joint thereof have faults; and ensuring whether the faults exist by judging whether the surface temperature and the environmental temperature difference exceed the external exotherm stipulated by the Chinese standard. The temperature protecting method overcomes the defect that the traditional bus duct can judge faults by only measuring surface temperature to replace internal temperature, increases possibility for detecting glitch circuits in the bus duct and improves the temperature protection precision of the bus duct.

The present invention provides a sliding supporting device, and relates to the electric power transmission supporting field. The sliding supporting device comprises a support, a supporting plate is fixedly arranged at the top of the support, and the top of the supporting plate is fixedly connected with two fixing bases separately. The two fixing bases are arranged symmetrically by the central axis of the supporting plate, the right side of the supporting plate is equipped with a chute, and a rotating rod and a sliding plate are arranged in the chute separately. The rotating rod is located under the sliding plate, and a cylinder sleeves the rotating rod. The bottom of the sliding plate is contacted with the cylindrical surface of the cylinder, and the top of the sliding plate is fixedly connected with a supporting base. The sliding supporting device has can fix a bus well, can carry out the bidirectional adjustment according to the movement of the bus and according to the heat expansion and cold contraction status of the bus, enables the bus to have a higher stability, completely eradicates the situation that the bus breaks because of the temperature change or when being used more, and enables the safety and reliability of the bus in a power supply system to be improved.

A support for busbars of a busbar system, which can be fixed in place on a fastening surface and which forms a receptacle which is adapted to a width and a thickness of the busbar. A later attachment to the pre-positioned busbar system is made possible due to correspondingly divided supports, if the support has two L-shaped receiving elements, whose legs, aligned parallel with the fastening surface, determine the width of the receptacle, and which have on front ends facing each other dovetailed strips and dovetailed grooves aligned with each other, which extend in a longitudinal direction of the busbar to be inserted into the receptacle. The legs of the receiving elements are oriented perpendicularly with respect to the fastening surface and determine the height of the receptacle. The facing sides of the two receiving elements have projecting support strips, which can be inserted into longitudinal grooves of the busbar, to be placed into the receptacle.

The invention provides a bus duct system special for wind power generation. The system comprises bus ducts, mounting brackets and joint boxes, wherein each bus duct consists of a plurality of bus bodycomponents which are connected into a whole through a flexible bridge; the joint boxes are respectively arranged at both ends of each bus duct; mounting seats of the mounting bracket are fixed in a wind tower, and fixing angle irons of the mounting bracket are fixedly connected with shells of the bus ducts; each flexible bridge comprises a metallic corrugated tube and a soft conductor, and both ends of each metallic corrugated tube and each soft conductor are respectively connected with corresponding shells of the bus ducts; the soft conductors are arranged in the metallic corrugated tubes, and both ends of each soft conductor are respectively and fixedly connected with bus bars of corresponding bus ducts into a whole; an insulating spacer is arranged between every two adjacent soft conductors, and both ends of each insulating spacer are respectively and fixedly connected with the bus bars of the corresponding bus ducts. The invention enables the connected bus ducts to be adjusted inmultiple directions.

The invention relates to a bus duct housing which is used for containing a conductor. The bus duct housing comprises two cover plates of identical shapes and two groups of locking members, wherein each cover plate comprises a cover plate main body, two bent parts and two lock closing parts; the two bent parts extend towards the same side from both ends of the cover plate main body; the two lock closing parts extend towards opposite directions from the terminals of the two bent parts; the two main bodies of the two cover plate and the two bent parts are matched to form a containing space for containing a conductor; and each locking member penetrates through the locking parts corresponding to the cover plates so as to fix the two cover plates together. The two cover plates of the bus duct housing are fixedly connected through the two locking members, and the two main bodies of the two cover plates, the two bent parts and the locking parts are matched to form a containing space for containing a conductor. Compared with a traditional bus duct housing of a four-plate structure, the invention has higher protection grade and higher strength.

The invention relates to a busbar and insulation support protection system of a distribution box, which comprises a switchover busbar module group and a single-row branch busbar module group. The switchover busbar module group comprises a switchover busbar shield base, a switchover busbar shield bottom cover, switchover busbars and outgoing line busbars; the switchover busbar shield base and the switchover busbar shield bottom cover are linked with each other through a clipping hook and clipping groove structure to form a switchover busbar shield; the inner surface of the switchover busbar shield bottom cover is provided with three or four busbar grooves; the switchover busbars are arranged in each busbar groove in sequence; and the two ends of each switchover busbar are both provided with a screw hole used for connecting the switchover busbar with other components. The branch busbar module group comprises a large branch busbar bracket, a shield module, a small branch busbar bracket, a Pc protection plate and branch busbars; the right ends of three or four branch busbars are clamped in a horizontal groove of the small branch busbar bracket; and the left ends of the three or four branch busbars are clipped in a horizontal groove of the large branch busbar bracket. The system has the advantages of compact structure, reasonable layout, good insulation performance and high security.