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    • 5. 发明授权
    • Coil unit for linear motor
    • 线性电机线圈单元
    • US06806594B2
    • 2004-10-19
    • US10078261
    • 2002-02-20
    • Yasushi KoyanagawaHidehiko MoriTatsuro KatoMasanobu SugimineDaisuke Shinohira
    • Yasushi KoyanagawaHidehiko MoriTatsuro KatoMasanobu SugimineDaisuke Shinohira
    • H02K4100
    • H02K41/03H02K3/24
    • A coil in a coil unit for a linear motor is evenly cooled in the lengthwise direction to reduce an influence of heat on the outside from the coil unit. The coil unit includes the plate-shape coil extending in a traveling direction of the linear motor, a shell for internally storing the coil while maintaining a predetermined gap to the coil, and leading a refrigerant through the gap to cool the coil, a main flow passage formed inside the shell while extending in a lengthwise direction X of the coil, and leading the refrigerant supplied from the outside into itself, and a plurality of branch flow passages formed at a predetermined interval in the lengthwise direction X on the main flow passage for leading out the refrigerant led into the main flow passage in a widthwise direction Y of the coil. The refrigerant led out from the branch flow passages after having flown through the main flow passage flows into the gap between the shell and the coil, and cools the coil along the widthwise direction Y.
    • 用于线性电动机的线圈单元中的线圈在长度方向上被均匀地冷却,以减少来自线圈单元的热量对外部的影响。 线圈单元包括沿线性电动机的行进方向延伸的板状线圈,用于内部存储线圈的壳体,同时保持与线圈的预定间隙,并且引导制冷剂通过间隙冷却线圈,主流 形成在壳体内的通道,同时沿着线圈的长度方向X延伸,并且将从外部供给的制冷剂引导到其自身中;以及多个分支流道,其在主流路上沿长度方向X以预定间隔形成, 引出在线圈的宽度方向Y上流入主流路的制冷剂。 在流过主流路之后从分支流路引出的制冷剂流入壳体和线圈之间的间隙,并沿着宽度方向Y冷却线圈。
    • 6. 发明授权
    • Gas insulated bus and particle removal method for gas insulated bus
    • 气体绝缘母线气体绝缘母线和除尘方法
    • US08804298B2
    • 2014-08-12
    • US13462974
    • 2012-05-03
    • Tatsuro KatoToshiaki RokunoheHisashi UrasakiRyoichi Shinohara
    • Tatsuro KatoToshiaki RokunoheHisashi UrasakiRyoichi Shinohara
    • H02H1/00
    • H02G5/065H02G5/066
    • The present invention is provided to satisfy insulation and conductivity performance requirements, to reduce the size of a gas insulated bus, and also to make conditioning for a particle more reliable. In a gas insulated bus having a conductor supported in a cylindrical metal container via an insulator, insulating gas being contained in the metal container, the metal container has an expanded diameter part formed over a given range in an area of the metal container in which the insulator is positioned and a reduced diameter part formed over the entire area of the metal container except for the expanded diameter part. Thus, when the temperature of the insulator increases during conduction, heat from the insulator is transferred to the metal container via a large space in the expanded diameter part and released to the air through a large outer surface of the expanded diameter part of the metal container.
    • 提供本发明以满足绝缘和导电性能要求,以减小气体绝缘母线的尺寸,并且还使得对颗粒的调节更可靠。 在具有通过绝缘体支撑在圆筒形金属容器中的导体的气体绝缘母线中,绝缘气体包含在金属容器中,金属容器具有在金属容器的区域中形成在给定范围内的扩径部分, 绝缘体被定位,并且直径减小的部分形成在金属容器的整个区域之外,除了扩径部分之外。 因此,当绝缘体的温度在传导期间增加时,来自绝缘体的热量通过扩径部分的大空间传递到金属容器,并通过金属容器的扩径部分的大的外表面释放到空气中 。
    • 8. 发明授权
    • Method and system for monitoring partial discharge in gas-insulated apparatus
    • 在气体绝缘设备中监测局部放电的方法和系统
    • US07388384B2
    • 2008-06-17
    • US11304673
    • 2005-12-16
    • Tatsuro KatoTomohiro MoriyamaFumihiro Endo
    • Tatsuro KatoTomohiro MoriyamaFumihiro Endo
    • G01R31/08
    • G01R31/1254G01R31/085
    • A gas-insulated apparatus is equipped with multiple sensors for sensing a partial discharge signal caused by a foreign substance, and a frequency analyzing section for analyzing the frequency of the sensed partial discharge signal. A defect type judging section estimates the defect type of the foreign substance from the signal obtained through the frequency analysis or from the voltage phase distribution of partial discharge synchronized with the frequency of the voltage applied to the gas-insulated apparatus, and a location determining section estimates the defect location and signal intensity from the multiple partial discharge signals. A defect size calculating section estimates the defect size for each defect type from the signal intensity and field distribution at the defect location. Dielectric breakdown risk evaluation is performed based on the defect size and type, and the insulation failure risk is diagnosed from the partial discharge.
    • 气体绝缘装置配备有用于感测由异物引起的局部放电信号的多个传感器,以及用于分析感测到的局部放电信号的频率的频率分析部。 缺陷型判断部根据通过频率分析得到的信号或者与施加到气体绝缘装置的电压的频率同步的局部放电的电压相位分布来估计异物的缺陷类型,以及位置确定部 估计来自多个局部放电信号的缺陷位置和信号强度。 缺陷尺寸计算部根据缺陷位置处的信号强度和场分布来估计每种缺陷类型的缺陷尺寸。 基于缺陷尺寸和类型进行介电击穿风险评估,并从局部放电诊断绝缘破坏风险。