摘要:
There is disclosed a secondary battery having a negative electrode composed of an active substance and a carrier carrying the active substance, which comprises(1) the active substance is lithium or an alkali metal mainly composed of lithium,(2) the carrier is a mixture composed of(a) a carbonaceous material having(i) an atomic ratio of hydrogen/carbon of less than 0.15 and(ii) a spacing of (002) planes (d.sub.002) as determined by X-ray wide angle diffraction of 3.37 .ANG. or more and a crystallite size in the direction of c axis of 150 .ANG. or less, and(b) a metal capable of forming an alloy with the active substance and/or an alloy with the active substance.
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 vacuum switch has a fixed electrode, a movable electrode facing the fixed electrode, an insulating cylinder, end plates covering both axial ends of the insulating cylinder, a vacuum chamber internally accommodating the fixed electrode and the movable electrode, and a solid isolation resin molded on the outside of the vacuum chamber, first coil springs, each of which is disposed around the outer circumference of one end plate while touching the end plate and an end face of the insulating cylinder, and second coil springs, each of which is united to one of the first springs and disposed around the outer circumference of the insulating cylinder so as to cover the angular part of the end face of the insulating cylinder, and the end plates, the end faces of the insulating cylinder, and the first and second coil springs are electrically connected.
摘要:
A switchgear includes a chassis which is partitioned by metal earthed plates and includes a bus bar section located at a central portion, a switch section located below the bus bar section, a cable section located at a rear surface side, and a control section located at a front surface side; an air-insulated earthed disconnecting switch provided in the switch section; and a manipulating device. The switch section is separable from the chassis, and is configured as a case having a semi-closed structure which allows air to pass therethrough but prevents particles of oil and water from passing therethrough.
摘要:
A vacuum insulated switchgear comprising a vacuum container accommodating at least a pair of movable contacts and a pair of fixed contacts, wherein the movable contacts are capable of taking three positions, the switchgear being a double-break three-position type switch having breaking and disconnecting functions.
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:
According to one embodiment, a nonvolatile semiconductor memory device includes a memory cell array including regular memory cells and permanent memory cells and a control circuit. The regular memory cells are capable of switching between a first data storage state and a second data storage state. The permanent memory cells are fixed in a third data storage state that is read as the same logic level data as the first storage state. Data is stored in at least one of the regular memory cells and at least one of the permanent memory cells. The control circuit rewrites at least one of the regular memory cells from the second data storage state to the first data storage state at the time of data holding. The control circuit performs a reading operation after rewriting the regular memory cells from the first data storage state to the second data storage state.
摘要:
A vacuum insulated switchgear is arranged as a panel for a power substation with the other or the others in parallel rows. the vacuum insulated switchgear comprises a housing with a switch section, a bus section, a cable section, and a control section which are partitioned by earthed metal plates respectively. The vacuum insulated switchgear comprises: a connection member provided in each bus connecting part in the bus section of the each panel and enabling each bus to be connected and disconnected; and a bus recovery member which is detachably connected between the connection members of faultless panels adjacent to a faulty panel when the faulty panel occurred.