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8 条记录 (耗时 0.013 秒)

    Vacuum valve
    4.
    发明公开
    Vacuum valve 失效
    真空阀

    公开(公告)号：EP1367619A3

    公开(公告)日：2003-12-10

    申请号：EP03017501.2

    申请日：1996-09-04

    申请人： Kabushiki Kaisha Toshiba

    发明人： Watanabe, Kenji ,  Uchiyama, Kumi ,  Kagenaga, Kiyoshi ,  Sato, Junichi ,  Kaneko, Eiji ,  Honma, Mitsutaka ,  Somei, Hiromichi

    IPC分类号： H01H33/66 ,  H01H33/18

    CPC分类号： H01H33/6644 ,  H01H1/0206 ,  H01H33/185 ,  H01H33/6645

    摘要： The flux density Bct is applied at the center area of the electrode. The flux density Bct is adjusted within the range A of 0.75 to 0.9 times greater than the axial flux density Bcr which gives the lowest arc voltage between the electrodes against each breaking current. The axial flux density monotonously increases from the center to the circumferential area of the electrode. Here, the radial position where the axial flux density Bcr which gives the lowest arc voltage Vmin is adjusted within the region B of 20% to 40% of the radius of the electrode. The axial flux density is made monotonously increase in an outer area from the region B and give the maximum value Bp in a circumferential area equal to or beyond 70% of the radius of the electrode. The maximum value Bp is adjusted within the range C of 1.4 to 2.4 times greater than the flux density Bct given at the electrode center. Further, the circumferential distribution of flux density passing the radial position where the axial flux density gives the maximum value is made fluctuate high and low. The circumferential distribution of flux density is adjusted to give at least two peaks on the circle. Here, the greatest value Bmax and the smallest value Bmin in the circumferential distribution of flux density are adjusted within the range of 1.4 to 2.4 times greater than the axial flux density Bct of the electrode center.

    摘要翻译： 磁通密度Bct施加在电极的中心区域。 通量密度Bct被调整在范围A内，该范围A比轴向通量密度Bcr大0.75至0.9倍，该轴向通量密度Bcr使电极之间的最低电弧电压抵抗每个开断电流。 轴向磁通密度从电极的中心到圆周区域单调地增加。 这里，在电极半径的20％至40％的区域B内调整给出最低电弧电压Vmin的轴向磁通密度Bcr的径向位置。 轴向磁通密度在距离区域B的外部区域中单调增加，并且在等于或超过电极半径的70％的圆周区域中给出最大值Bp。 最大值Bp在比电极中心的磁通密度Bct大1.4〜2.4倍的范围内调整。 此外，使通过轴向磁通密度达到最大值的半径位置的磁通密度的圆周分布高低地波动。 调节通量密度的圆周分布以在圆上给出至少两个峰值。 这里，通量密度的圆周分布中的最大值Bmax和最小值Bmin被调整在比电极中心的轴向通量密度Bct大1.4至2.4倍的范围内。

    Vacuum valve
    7.
    发明公开
    Vacuum valve 失效
    Vakuumschalter

    公开(公告)号：EP1367619A2

    公开(公告)日：2003-12-03

    申请号：EP03017501.2

    申请日：1996-09-04

    申请人： Kabushiki Kaisha Toshiba

    发明人： Watanabe, Kenji ,  Uchiyama, Kumi ,  Kagenaga, Kiyoshi ,  Sato, Junichi ,  Kaneko, Eiji ,  Honma, Mitsutaka ,  Somei, Hiromichi

    IPC分类号： H01H33/66

    CPC分类号： H01H33/6644 ,  H01H1/0206 ,  H01H33/185 ,  H01H33/6645

    摘要： The flux density Bct is applied at the center area of the electrode. The flux density Bct is adjusted within the range A of 0.75 to 0.9 times greater than the axial flux density Bcr which gives the lowest arc voltage between the electrodes against each breaking current.
    The axial flux density monotonously increases from the center to the circumferential area of the electrode. Here, the radial position where the axial flux density Bcr which gives the lowest arc voltage Vmin is adjusted within the region B of 20% to 40% of the radius of the electrode.
    The axial flux density is made monotonously increase in an outer area from the region B and give the maximum value Bp in a circumferential area equal to or beyond 70% of the radius of the electrode. The maximum value Bp is adjusted within the range C of 1.4 to 2.4 times greater than the flux density Bct given at the electrode center.
    Further, the circumferential distribution of flux density passing the radial position where the axial flux density gives the maximum value is made fluctuate high and low. The circumferential distribution of flux density is adjusted to give at least two peaks on the circle. Here, the greatest value Bmax and the smallest value Bmin in the circumferential distribution of flux density are adjusted within the range of 1.4 to 2.4 times greater than the axial flux density Bct of the electrode center.

    摘要翻译： 磁通密度Bct被施加在电极的中心区域。 磁通密度Bct在比轴向磁通密度Bcr大0.75至0.9倍的范围A内进行调节，这样可以使电极间的电弧电压相对于每个断开电流产生最低的电压。 轴向通量密度从电极的中心到圆周面积单调增加。 这里，在电极半径的20％〜40％的区域B内调整给出最低电弧电压Vmin的轴向通量密度Bcr的径向位置。 在区域B的外部区域中轴向磁通密度单调增加，并且在等于或超过电极半径的70％的圆周区域中给出最大值Bp。 最大值Bp在比电极中心给出的通量密度Bct大1.4至2.4倍的范围C内进行调节。 此外，通过轴向磁通密度赋予最大值的径向位置的磁通密度的周向分布变得高和低。 调整磁通密度的圆周分布，以在圆上给出至少两个峰。 这里，磁通密度的周向分布中的最大值Bmax和最小值Bmin在电极中心的轴向通量密度Bct的1.4〜2.4倍的范围内调整。

    Electrode arrangement of vacuum circuit breaker with magnetic member for longitudinal magnetization
    8.
    发明公开
    Electrode arrangement of vacuum circuit breaker with magnetic member for longitudinal magnetization 有权
    KontaktanordnungfürVakuumschalter mit MagnetelementfürdieSubeMagnetisierung

    公开(公告)号：EP0924729A2

    公开(公告)日：1999-06-23

    申请号：EP98123522.9

    申请日：1998-12-16

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Okutomi, Tsutomu ,  Seki, Tsuneyo ,  Ohshima, Iwao ,  Homma, Mitsutaka ,  Somei, Hiromichi ,  Uchiyama, Kumi ,  Niwa, Yoshimitsu ,  Watanabe, Kenji

    IPC分类号： H01H33/66

    CPC分类号： H01H33/6644 ,  H01H33/185

    摘要： Disclosed is an electrode arrangement of a vacuum circuit breaker for making and breaking electrical connection. The electrode arrangement has: a pair of contact members which are adopted for making contact to and release from each other by relatively moving to and from each other along a predetermined direction; a pair of electrically conductive bars being connected to the above pair of contact members, respectively, for providing electric conduction to the contact members; and a magnetizing device with a magnetic body for generating magnetic field parallel to the predetermined direction between the contact members. The magnetic body is composed of an iron alloy comprising 0.02 to 1.5 % by weight of carbon and iron. The iron alloy may further contain at least one of manganese and silicon.

    摘要翻译： 公开了用于制造和断开电连接的真空断路器的电极装置。 电极装置具有：一对接触构件，其通过沿着预定方向彼此相对移动而彼此接触和释放; 一对导电棒分别连接到上述一对接触构件，用于向接触构件提供电传导; 以及具有用于在接触构件之间产生平行于预定方向的磁场的磁体的磁化装置。 该磁性体由含有0.02-1.5％（重量）碳和铁的铁合金组成。 铁合金还可以含有锰和硅中的至少一种。