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公开(公告)号：US10468178B2
公开(公告)日：2019-11-05
申请号：US15673560
申请日：2017-08-10
摘要： A stationary induction apparatus includes a core, a winding wound around the core such that the core serves as a central axis, and an annular electrostatic shield disposed adjacent to at least one of ends of the winding in a direction along the central axis. The electrostatic shield includes a conductor and a second insulating coating that coats the conductor. The electrostatic shield has a potential lower than a highest potential in the winding.
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公开(公告)号：US10069285B2
公开(公告)日：2018-09-04
申请号：US15325196
申请日：2015-07-16
IPC分类号： H02B13/01 , H02B13/045
摘要： A gas-insulated switchgear includes a grounded tank filled with insulation gas, a center conductor which is disposed in the grounded tank and to which a voltage is applied, an insulating support member which insulates and supports the center conductor, and a nonlinear resistive part disposed at least on a vertically lower side inner surface of the grounded tank and formed by an insulation material containing a nonlinear resistive material. If an electric field applied to the nonlinear resistive part is higher than an electric field value in a vicinity of a contact point between the nonlinear resistive part and a metallic foreign substance mixed in the grounded tank during an operation, a resistivity of the nonlinear resistive part at the center conductor side is lower than a resistivity at which a discharge delay time is equal to an electric field relaxation time constant.
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公开(公告)号：US20180053597A1
公开(公告)日：2018-02-22
申请号：US15673560
申请日：2017-08-10
CPC分类号： H01F27/362 , H01F27/2823 , H01F27/2885 , H01F27/327
摘要： A stationary induction apparatus includes a core, a winding wound around the core such that the core serves as a central axis, and an annular electrostatic shield disposed adjacent to at least one of ends of the winding in a direction along the central axis. The electrostatic shield includes a conductor and a second insulating coating that coats the conductor. The electrostatic shield has a potential lower than a highest potential in the winding.
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公开(公告)号：US11095099B2
公开(公告)日：2021-08-17
申请号：US16965842
申请日：2018-03-14
IPC分类号： H02B13/035 , H01H33/56 , H01H33/662
摘要： A gas-insulated switching device including, inside a pressure tank: a vacuum valve having a movable contact provided on one side of a movable conductor, and a fixed contact provided to a fixed conductor; an insulation rod connected to another side of the movable conductor led out through a bellows from the vacuum valve; and an airtight container in which the insulation rod and the other side of the movable conductor are stored, wherein an internal space of the bellows and an internal space of the airtight container communicate with each other, one side of the vacuum valve is fixed to a tank wall via an insulation support body, another side of the vacuum valve is connected to the tank wall via the airtight container, and the airtight container insulates the vacuum valve and the tank wall from each other, and is slidable in a movable direction of the movable conductor.
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公开(公告)号：US09837202B2
公开(公告)日：2017-12-05
申请号：US15355309
申请日：2016-11-18
CPC分类号： H01F27/362 , H01F27/02 , H01F27/24 , H01F27/28 , H01F27/32 , H01F27/343
摘要： Each of a plurality of electrostatic shields includes an insulator portion and a conductor portion. The conductor portion includes a flat portion formed in an annular shape and a pair of protruding portions. The insulator portion is provided with a first housing portion housing the flat portion and a pair of second housing portions each housing a corresponding one of the pair of protruding portions. Each of the pair of protruding portions includes: a protruding end portion located along an inner surface of a corresponding one of the pair of second housing portions, and a center portion located adjacent to the protruding end portion. In each of the pair of protruding portions, the protruding end portion and the center portion are electrically connected to each other and are equal in electric potential to each other.
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公开(公告)号：US20150251933A1
公开(公告)日：2015-09-10
申请号：US14438805
申请日：2013-11-07
发明人： Yasuhiro Nakamura , Yasutaka Inanaga , Akira Morikawa , Tokiko Yamauchi , Takao Tsurimoto , Hirotaka Muto , Gaku Oinuma , Masakazu Taki
IPC分类号： C02F1/46
CPC分类号： C02F1/4608 , C02F1/74 , C02F2001/46171 , C02F2101/30 , C02F2201/003 , C02F2201/46175 , C02F2201/4619 , C02F2201/48 , C02F2305/023
摘要： A water treatment device generates a bubble in water to be treated inside a treatment tank, and treats the water to be treated through use of radicals that are generated by bubble electric discharge caused via the bubble. The water treatment device includes main electrodes for forming a main discharge area between a first main electrode and a second main electrode, auxiliary electrodes for forming a preliminary discharge area between a first auxiliary electrode and a second auxiliary electrode, and a bubble generator generating a bubble in water to be treated through use of an externally supplied gas. When a bubble generated by the bubble generator passes through the preliminary discharge area, discharge is caused via the bubble, and, when the bubble in an excited state subsequently passes through the main discharge area, the bubble causes discharge again to generate radicals.
摘要翻译： 水处理装置在处理槽内处理的水中产生气泡，并通过使用通过气泡产生的气泡放电产生的自由基来处理待处理的水。 水处理装置包括用于在第一主电极和第二主电极之间形成主放电区域的主电极，用于在第一辅助电极和第二辅助电极之间形成初步放电区域的辅助电极和产生气泡的气泡发生器 在通过使用外部供应气体处理的水中。 当由气泡发生器产生的气泡通过预备放电区域时，通过气泡产生放电，并且当激发态的气泡随后经过主放电区域时，气泡再次导致放电。
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公开(公告)号：US11251589B2
公开(公告)日：2022-02-15
申请号：US17050704
申请日：2018-05-24
IPC分类号： H01H33/662 , H01H33/666 , H02B13/035 , H02B13/045
摘要： A gas-insulated switching device includes: a vacuum valve having a movable contact provided on one side of a movable conductor and a fixed contact provided to a fixed conductor; an insulation rod connected to another side of the movable conductor led out from the vacuum valve through a bellows; an operation rod connecting the insulation rod and an operation device; an airtight container in which the insulation rod, the other side of the movable conductor, and the operation rod are accommodated; and an intermediate pressure chamber formed by communication between internal spaces of the bellows and the airtight container. A sliding contact member is provided to the other side of the movable conductor. The sliding contact member is connected, via the airtight container, to a main circuit conductor. A communication portion provided between the airtight container and the sliding contact member allows communication inside the airtight container.
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公开(公告)号：US20210057890A1
公开(公告)日：2021-02-25
申请号：US16965842
申请日：2018-03-14
IPC分类号： H02B13/035 , H01H33/662 , H01H33/56
摘要： A gas-insulated switching device including, inside a pressure tank: a vacuum valve having a movable contact provided on one side of a movable conductor, and a fixed contact provided to a fixed conductor; an insulation rod connected to another side of the movable conductor led out through a bellows from the vacuum valve; and an airtight container in which the insulation rod and the other side of the movable conductor are stored, wherein an internal space of the bellows and an internal space of the airtight container communicate with each other, one side of the vacuum valve is fixed to a tank wall via an insulation support body, another side of the vacuum valve is connected to the tank wall via the airtight container, and the airtight container insulates the vacuum valve and the tank wall from each other, and is slidable in a movable direction of the movable conductor.
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公开(公告)号：US10043621B2
公开(公告)日：2018-08-07
申请号：US15122867
申请日：2014-10-02
摘要： A non-linear resistance film including an insulating material and a non-linear resistance material is provided on an inner surface of a grounded tank. The non-linear resistance film is formed to contain a larger amount of the non-linear resistance material on a side of a central conductor than on a side of the grounded tank. Accordingly, a gas insulated switchgear that can suppress partial discharge around metallic foreign matters and also can suppress inflow of charges from the grounded tank to the metallic foreign matters can be provided.
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公开(公告)号：US11658467B2
公开(公告)日：2023-05-23
申请号：US17293497
申请日：2018-12-26
发明人： Shintaro Yamada , Katsushi Nakada , Katsuki Hotta , Yasutomo Otake , Takao Tsurimoto , Shintaro Kuroaki
CPC分类号： H02B1/20 , H02B13/005 , H02B13/02 , H02G5/08
摘要： Provided is a busbar connecting device that can achieve good workability and high reliability at the same time. The busbar connecting device includes: a connection portion in which a busbar conductor and a current conductor of a bushing are connected; an insulation busbar connector covering the connection portion; a work hole communicating with the connection portion from an outside of the insulation busbar connector; and an insulating plug inserted into the work hole and sealing the insulation busbar connector, wherein a surface pressure between an inner circumferential surface of the work hole and an outer circumferential surface of the insulating plug is greater at a deep part of the work hole than at a shallow part of the work hole.
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