摘要:
A vacuum insulated switchgear comprising: a vacuum container; a vacuum insulated switch having a movable contact connected to a movable electrode and a fixed contact connected to a fixed electrode for interrupting and closing current; an operating rod connected to the movable electrode and connected to a magnetic drive mechanism; and a connecting mechanism for operating the operating rod; wherein the magnetic drive mechanism and the connecting mechanism are aligned on a straight line, wherein each of the magnet drive mechanisms has a shape of a rectangular parallelopiped shape.
摘要:
A main circuit switching unit and an isolator are accommodated in a vacuum container. A first conductor and a main circuit conductor are arranged to extend in and out of the vacuum container. A movable electrode of the main circuit switching unit is connected to the first conductor through a first flexible conductor, and a movable electrode of the isolator is connected to the main circuit conductor through a second flexible conductor. A shield is arranged around the first conductor and the main circuit conductor. Another shield is arranged around a connecting portion between the first flexible conductor and the movable electrode of the main circuit switching unit. A still another shield is arranged around the isolator. A further another shield is arranged around the second flexible conductor. These shields are secured to the vacuum container through insulating spacers. This arrangement instantly eliminates a dielectric breakdown phenomenon that occurs at electric field concentrated regions by the shields to prevent a dielectric breakdown caused by particulate foreign matters and thereby improve an insulation reliability of the devices.
摘要:
A slide electricity structure according to the present invention uses grease for electrical contacts wherein contact resistance does not gradually increase even when exposed to sliding and lifetime is long, and has a silver-plated spring contact that contacts or separates by way of sliding and grease for electrical contacts that has been applied to the spring contact and contains perfluoropolyether oil having an average molecular weight between 2600 and 12500 as a base oil and PTFE having a primary particle diameter of 1 μm or less as a thickener.
摘要:
In order to improve cooling performance of a switch unit or switchgear equipped with the switch unit, the switch unit includes a switch having a movable electrode and a fixed electrode and is casted as one body with a resin, the resin is provided with resin fins, and the thickness of the resin fin is changed so that the resin fin has a thickness sloped in the longitudinal direction of the resin fin.
摘要:
A manufacturing method of liquid crystal display device is provided that can increase manufacturing yield by reducing the number of layers and manufacturing costs and by preventing backlight lamp failure.In the manufacturing method of the device, a semiconductor layer 4 and a pixel electrode 5 are formed on a gate insulating film 3. Subsequently, a drain electrode electrically interconnecting the semiconductor layer 4 and the pixel electrode 5 of the pixel region A is formed by overlaying a flat solid conductive film on the substrate, followed by removing the conductive film with the use of a photoresist pattern as a mask, while exposing the semiconductor layer 4 at the pixel region A and the adjacent area C. The semiconductor layer 4 at the pixel region A is etched by using, as an index, an etching amount of the semiconductor layer 4 at the adjacent area.
摘要:
A switchgear includes an earthing and disconnecting switch which linearly moves and is switchable to a disconnecting and an earthing positions, a vacuum valve which performs closing and breaking of a current in a vacuum container producing vacuum inside, and a solid insulator with which the earthing and disconnecting switch and the vacuum valve are covered, therein the earthing and disconnecting switch and the vacuum valve are electrically connected, and closing and breaking of a current is performed in the vacuum valve.
摘要:
An auxiliary passage apparatus, an attachment, a liquid discharge head, and a ink jet head are provided. The auxiliary passage apparatus is detachably attached to a liquid discharge head and includes a main body portion including, a first surface, a second surface, a supply passage formed in the first surface and through which liquid passes to a discharge head, and an ejection passage formed in the second surface and through which liquid which is ejected from the discharge head passes. A part of the supply passage includes a first annular projection formed so as to protrude in a direction orthogonal to the first surface and a first flexible film adhered to a distal end of the first annular projection. A part of the ejection passage crosses an area on the second surface which is opposed to an area surrounded by the first annular projection.
摘要:
A puffer type gas breaker is provided, in which high-temperature gas, heated by an electric arc produced immediately after a large current is broken, is quickly discharged to enhance inter-pole dielectric performance. A fixing portion for fixing an arc contact is provided in a cylindrical exhaust pipe for exhausting the high-temperature gas heated by an electric arc produced between poles immediately after a large current is broken. A rectifying member or members is provided in the fixing portion of the cylindrical exhaust pipe. An exhaust port or ports is formed in the fixing portion of the cylindrical exhaust pipe, and a shield is disposed around the outer periphery of the exhaust port or ports.
摘要:
An aluminum alloy consisting of: 1.0-1.5 wt % Si, 0.4-0.9 wt % Cu, 0.2-0.6 wt % Mn, 0.8-1.5 wt % Mg, 0.3-0.9 wt % Cr, 0.03-0.05 wt % Ti, 0.0001-0.01 wt % B, and the balance consisting of Al and unavoidable impurities; the sum of the Mn and Cr contents being not more than 1.2 wt % and the content of Fe as one of the unavoidable impurities being not more than 0.2 wt %. The alloy may further comprise 0.1-0.2 wt % Zr to facilitate the refinement of crystal grains. The alloy has a tensile strength of 40 kgf/mm.sup.2 or more and an elongation of 15% or more when plastically formed, solution-treated and aged to provide the highest strength.
摘要翻译:一种铝合金,其由1.0-1.5重量%的Si,0.4-0.9重量%的Cu,0.2-0.6重量%的Mn,0.8-1.5重量%的Mg,0.3-0.9重量%的Cr,0.03-0.05重量%的Ti, 0.01重量%B,余量由Al和不可避免的杂质构成; Mn和Cr含量的总和不大于1.2wt%,作为不可避免的杂质之一的Fe的含量不大于0.2wt%。 该合金还可以包含0.1-0.2重量%的Zr以促进晶粒的细化。 该合金的拉伸强度为40kgf / mm 2以上,当塑性成形,溶液处理和老化时,伸长率为15%以上,以提供最高的强度。
摘要:
A liquid supplying mechanism includes a flow channel forming member that has a base having a plate-like shape on which an upstream portion of a plurality of liquid supplying flow channels are formed so as to supply ink to each of a plurality of liquid ejection heads that are assembled to a liquid ejection head unit, and a plurality of connection members in a tubular shape that extend from one side of the of the base so as to form a downstream portion of the flow channels that individually communicate with the upstream portion of the respective liquid supplying flow channels and are disposed such that the distal end of the connection members correspond to the positions of the connection holes that are formed on the respective liquid ejection heads.