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JP4458631B2 |
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JP4458476B2 |
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JP4454337B2 |
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JP2010085366A |
To provide a method and apparatus with good resistance to noise, diagnosing abnormality in insulation of a high-voltage electric instrument by means of an optic fiber vibration meter.A sensor 1a of an optic fiber vibration meter 1 for me...
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JP2010068665A |
To provide a photovoltage measuring device which divides voltage without receiving the influence of environmental characteristics, such as, temperature and humidity, and measures a main circuit voltage at high accuracy.The photovoltage m...
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JP4436896B1 |
A gas-insulated bus is provided with: a current-carrying conductor disposed along the axial direction of a metallic container that is filled with an insulating gas; a shield fitting through which passes the current-carrying conductor and...
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JP4436867B2 |
An apparatus for mounting bus bars having at least one bus bar holder which can be attached to a loadbearing structure and which has at least one foot receptacle for introducing a foot section of a bus bar and fixing the latter by a hold...
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JP4434464B2 |
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JP4434651B2 |
Solid insulator for gas-insulated encapsulated high voltage installations with an insulator body, which is supporting at least one central conductor that is provided for carrying high voltage and that is arranged in an outer enclosure. <...
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JP2010054360A |
To provide a novel, space-saving and low cost insulation diagnostic device that can detect, with higher sensitivity insulation, abnormality of an electric apparatus including a metallic container and a power device tank having an inner m...
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JP4427727B2 |
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JP4429205B2 |
A gas-insulated equipment such as a gas-insulated switchgear provided according to the invention can efficiently improve dielectric strength of an entire electrode system considering electric field distribution of the electrodes and cond...
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JP2010051157A |
To provide a gas-insulation substation, which is in harmony with the environment, and increases a ratio of SF6 gas reduction in the whole substation.The gas-insulation substation has a gas-insulated bus bar 2a, a gas-insulated switch 4-1...
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JP2010043869A |
To provide a space-saving, inexpensive, and new device of diagnosing insulation for an electric apparatus including electric power apparatus tank including a metal container and an inner metal body applying a high-voltage into the metal ...
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JP4418580B2 |
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JP4418601B2 |
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JP2010029018A |
To provide a closed switchboard which eliminates the need for increase in the installation area, even when a plurality of systems of power supplies are used.In the closed switchboard 1, an upper horizontal bus 11 is fitted to an upper se...
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JP2010021263A |
To provide an insulation diagnosing method for a gas insulated electrical apparatus using the insulating gas of a small global warming potential (GWP).In the insulation diagnosing method for the gas insulated electrical apparatus for dia...
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JP4404669B2 |
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JP4405233B2 |
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JP2010016945A |
To provide a water-cooled busbar wherein it is possible to prevent crevice corrosion that may occur between end faces of two busbar constituent members adjoining to each other in the direction of length and thereby reduce the electrical ...
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JP4401506B2 |
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JP4401505B2 |
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JP4397145B2 |
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JP4392932B2 |
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JP4392923B2 |
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JP4389979B2 |
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JP4385888B2 |
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JP2009288035A |
To provide a partial discharge detector which is easily attached to a gas insulated switchgear, without a risk for detachment even when an external force works on signal detection cables etc., and transmits signals stably for a long peri...
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JP4376287B2 |
A bus bar system with an assembly unit having a base plate with side limbs and fixing items which are connected to the assembly unit. The assembly unit forms a receiving element for a bus bar holder and bus bars which are covered with co...
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JP4369893B2 |
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JP4372405B2 |
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JP4373850B2 |
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JP4373600B2 |
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JP2009268294A |
To provide a gas insulated electric device that surely traps a metal foreign matter showing various behavior, reduces manufacturing costs, and improves insulation reliability.A conductor 1 is installed in a grounded tank 2 filled with in...
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JP2009268295A |
To provide a gas insulated electric device that reliably traps metal a foreign matter inside a gas insulated electric device and reliably continues to trap the metal foreign matter without floating the trapped metal foreign matter again ...
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JP2009254070A |
To obtain a gas-insulated switchgear improved in insulation withstand voltage by suppressing the distortion of electric field in a space filled with insulating gas and by reducing insulation breakdown caused by metal foreign matters.The ...
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JP2009254104A |
To provide a conductor monitor for a power receiving and distributing facility capable of efficiently monitoring individual bus-bars by automatically setting a thermal model of the bus-bar.The conductor monitor for the power receiving an...
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JP4346279B2 |
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JP4349664B2 |
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JP4339556B2 |
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JP4339888B2 |
The system has an annular spacer (5) associated to a support component (2) on a side directed towards an electric conductor (1). A nut (3) placed at side of a support opposite to the spacer is connected to the spacer by floating fastenin...
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JP4324125B2 |
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JP2009189122A |
To provide an assembling jig of a bus-duct vertical part spring hanger that safely, easily and simultaneously assemble a plurality of spring parts.The assembling jig of the bus-duct vertical part spring hanger includes: a first side plat...
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JP2009189182A |
To solve the problem in a switching device using dried air for an insulating medium that the detection sensitivity of partial discharge is different at partial discharge generation positions, because discharge detection cannot be perform...
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JP4316359B2 |
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JP4317978B2 |
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JP4316539B2 |
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JP4315519B2 |
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JP4298645B2 |
At least one of the channels (RS, ST) between the conductor casings (1R-1T) contains an intermediate wall (Z) extending parallel to the adjacent casing side walls (8, 9). The arrangement comprises at least three casings, each one contain...
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