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61 条记录 (耗时 0.017 秒)

    Enclosed electric conductor arrangement
    14.
    发明公开
    Enclosed electric conductor arrangement 失效
    Gekapselte elektrische Leiteranordnung。

    公开(公告)号：EP0610768A1

    公开(公告)日：1994-08-17

    申请号：EP94101380.7

    申请日：1994-01-31

    申请人： HITACHI, LTD.

    发明人： Yamagiwa, Tokio ,  Endo, Fumihiro ,  Asano, Kazutoshi

    IPC分类号： H02G5/06

    CPC分类号： H02G5/065 ,  H02G5/068

    摘要： In an enclosed gas filled electric conductor arrangement, at least the surface (3A) at the bottom side of an electric conductor (3) is formed in an inclined surface by gradually reducing the cross section (D1, D2) of the electric conductor from one insulator spacer (2A) at one side toward another insulator spacer (2B) at the other side.
    Because of an angle (ϑ ) of the inclined surface (3A), the spacing distance between the electric conductor (3) and the bottom surface (1A) of a grounded tank (1) increases depending upon distance away from one insulator spacer (2A), thereby, a conductive foreign particle (50) is designed to move away from the surface of the insulator spacer (2A) and is trapped by a conductive foreign particle trapping means (10) disposed at the center bottom surface (1A) of the grounded tank, and is prevented from being deposited on the insulator spacer (2A), thereby, the insulation reliability of the enclosed electric conductor arrangement for the gas insulated apparatus is enhanced as well as the size and weight of the arrangement can be reduced.

    摘要翻译： 在封闭的气体充填电导体装置中，至少通过逐渐减小电导体的横截面（D1，D2），将电导体（3）的底侧的表面（3A）形成为倾斜表面 绝缘体间隔件（2A）在另一侧朝向另一侧的另一绝缘体间隔件（2B）。 由于倾斜表面（3A）的角度（θ），接地箱（1）的电导体（3）和底表面（1A）之间的间隔距离远离一个绝缘隔离件（2A ），因此，导电异物（50）被设计成远离绝缘体隔离物（2A）的表面移动，并被设置在所述绝缘隔离物（2A）的中心底表面（1A）处的导电异物捕集装置（10） 接地的箱体，并且防止其沉积在绝缘体间隔件（2A）上，从而提高了用于气体绝缘设备的封闭的电导体装置的绝缘可靠性，并且可以减小布置的尺寸和重量。

    Power apparatus and method of location of a fault in a power apparatus
    15.
    发明公开
    Power apparatus and method of location of a fault in a power apparatus 失效
    电力设备的电力设备和故障定位方法

    公开(公告)号：EP0445990A3

    公开(公告)日：1992-04-22

    申请号：EP91301740.6

    申请日：1991-03-01

    申请人： HITACHI, LTD.

    发明人： Ishikawa, Toshio ,  Endo, Fumihiro ,  Iwaasa, Shuzo ,  Utsumi, Tomoaki ,  Yamagiwa, Tokio ,  Tagawa, Yoshinori

    IPC分类号： G01R31/12 ,  H02B13/065

    CPC分类号： G01R31/1254

    摘要： A power apparatus has a network (1) formed by a plurality of interconnected components being e.g. one or more high voltage conductors in a casing of a metal filled with an insulation gas. Detectors (S1,S2,S3) are provided which detect electromagnetic waves in the network (1), which are generated if there is a fault. The electromagnetic waves are analyzed (20) to detect the location of the fault. That analysis may make use of attenuation coefficients corresponding to each component of the network (1) to extrapolate between detectors on either side of the fault and/or to compare with predetermined wave strengths. A map of the network (1) may be stored in a suitable memory (23) to assist in the calculation of the fault location, and the memory (23) may also store the attenuation coefficients themselves. The location of the fault may then be displayed by a suitable display (35), to give the time variation of the fault

    Switchgear having a breaking point operable in an insulating gas
    16.
    发明公开
    Switchgear having a breaking point operable in an insulating gas 失效
    具有在绝缘气体中操作的断路点的开关

    公开(公告)号：EP0417813A3

    公开(公告)日：1992-04-15

    申请号：EP90117767.5

    申请日：1990-09-14

    申请人： HITACHI, LTD.

    发明人： Ohno, Masatomo ,  Yamagiwa, Tokio ,  Fukuchi, Tetsuo ,  Suzuki, Akira

    IPC分类号： H01H33/59 ,  H01H33/16

    CPC分类号： H01H33/16 ,  H01H33/59

    摘要： A gas-insulated switchgear having at least a circuit breaker, a conductor system connected to the circuit breaker for carrying a current thereto, and a grounded enclosure encasing the circuit breaker and the conductor system together with an insulating medium gas, which comprises:
    at least one capacitor which is connected, at one end thereof, to a conductor of the conductor system which is on a line side with respect to a breaking point of the circuit breaker, and connected, at the other end thereof, to the grounded enclosure.

    摘要翻译： 一种具有至少一个断路器的气体绝缘开关装置，连接到用于承载电流的断路器的导体系统，以及一个封闭断路器和导体系统的绝缘介质气体的接地外壳，其中包括：至少 一个电容器，其一端连接到相对于断路器的断点在线路上的导体系统的导体，并在另一端连接到接地的外壳。

    Gas blast circuit breaker
    17.
    发明公开
    Gas blast circuit breaker 失效
    Druckgasschalter。

    公开(公告)号：EP0469330A2

    公开(公告)日：1992-02-05

    申请号：EP91111165.6

    申请日：1991-07-04

    申请人： HITACHI, LTD.

    发明人： Tsukushi, Masanori ,  Hashimoto, Akira ,  Satoh, Minori ,  Kurosawa, Yukio ,  Hirasawa, Kunio ,  Endo, Fumihiro ,  Yamagiwa, Tokio

    IPC分类号： H01H33/70

    CPC分类号： H01H33/703 ,  H01H33/7076

    摘要： A gas blast circuit breaker comprises an insulation nozzle (8) for blowing extinguishing gas to an arc (9) generated between a stationary contact (1) and a movable contact (2). The nozzle (8) has a throat section (10) into and out of which one of the two contacts (1, 2) is movable and a divergent section (13) provided downstream of the throat section (10). A slanting surface (11) for increasing a reflectivity of energy intensity of the arc (9) is formed on the divergent section (13) of the nozzle (8). The nozzle (8) is formed of a fluoroplastic material and boron nitride powder not more than 15 vol.% added as a filler.

    摘要翻译： 燃气断路器包括用于将灭火气体吹送到在静触头（1）和可动触头（2）之间产生的电弧（9）的绝缘喷嘴（8）。 喷嘴（8）具有一个喉部（10），其中两个触点（1,2）中的一个可移动，以及设置在喉部（10）下游的发散部分（13）。 在喷嘴（8）的发散部分（13）上形成用于增加电弧（9）的能量强度的反射率的倾斜表面（11）。 喷嘴（8）由氟塑料材料和不超过15体积％的氮化硼粉末作为填料形成。

    Power apparatus and method of location of a fault in a power apparatus
    18.
    发明公开
    Power apparatus and method of location of a fault in a power apparatus 失效
    电源装置和用于电源装置定位故障的方法。

    公开(公告)号：EP0445990A2

    公开(公告)日：1991-09-11

    申请号：EP91301740.6

    申请日：1991-03-01

    申请人： HITACHI, LTD.

    发明人： Ishikawa, Toshio ,  Endo, Fumihiro ,  Iwaasa, Shuzo ,  Utsumi, Tomoaki ,  Yamagiwa, Tokio ,  Tagawa, Yoshinori

    IPC分类号： G01R31/12 ,  H02B13/065

    CPC分类号： G01R31/1254

    摘要： A power apparatus has a network (1) formed by a plurality of interconnected components being e.g. one or more high voltage conductors in a casing of a metal filled with an insulation gas. Detectors (S1,S2,S3) are provided which detect electromagnetic waves in the network (1), which are generated if there is a fault. The electromagnetic waves are analyzed (20) to detect the location of the fault. That analysis may make use of attenuation coefficients corresponding to each component of the network (1) to extrapolate between detectors on either side of the fault and/or to compare with predetermined wave strengths. A map of the network (1) may be stored in a suitable memory (23) to assist in the calculation of the fault location, and the memory (23) may also store the attenuation coefficients themselves. The location of the fault may then be displayed by a suitable display (35), to give the time variation of the fault

    摘要翻译： 一种电力装置具有由相互连接的部件是E.G.的多个形成一网络（1） 在填充有绝缘气体的金属外壳的一个或多个高电压导体。 提供故障检测器（S1，S2，S3）是所述网络（1）中，如果有一个其中产生在检测电磁波。 的电磁波进行分析（20），以检测故障的位置。 该分析可以利用衰减系数对应于所述网络的各成分的（1）至探测器之间的故障的任一侧，并且推断/或与规定波强度比较。 网络（1）中的地图可被存储在适当的存储器（23），以协助在故障位置的计算，并且因此存储器（23）可以存储的衰减系数本身。 的故障的位置然后可通过适当的显示器（35）被显示给该故障的时间变化