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公开(公告)号：US07095310B2
公开(公告)日：2006-08-22
申请号：US11114012
申请日：2005-04-26
申请人： Toshiya Imai , Hideyasu Ando , Susumu Nishiwaki
发明人： Toshiya Imai , Hideyasu Ando , Susumu Nishiwaki
IPC分类号： H01C7/10
摘要： A non-linear resistor comprises a sintered body having zinc oxide as a main component, a side-surface high resistance layer arranged at a side-surface of the sintered body, and an electrode arranged at upper and lower surfaces of the sintered body. The side-surface high resistance layer is formed of a specifically selected material. The end-to-end distance between an end portion of the electrode and a nonlinear resistor end portion including the side-surface high resistance layer falls within a range of 0 mm to the thickness of the side-surface high resistance layer+0.01 mm.
摘要翻译： 非线性电阻器包括以氧化锌为主要成分的烧结体，设置在烧结体的侧面的侧面高电阻层以及布置在烧结体的上表面和下表面的电极。 侧面高电阻层由特定选择的材料形成。 电极的端部与包括侧面高电阻层的非线性电阻器端部之间的端对端距离在与侧面高电阻层的厚度为0.01mm的范围内。
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公开(公告)号：US20050195065A1
公开(公告)日：2005-09-08
申请号：US11114012
申请日：2005-04-26
申请人： Toshiya Imai , Hideyasu Ando , Susumu Nishiwaki
发明人： Toshiya Imai , Hideyasu Ando , Susumu Nishiwaki
摘要： A non-linear resistor comprises a sintered body having zinc oxide as a main component, a side-surface high resistance layer arranged at a side-surface of the sintered body, and an electrode arranged at upper and lower surfaces of the sintered body. The side-surface high resistance layer is formed of a specifically selected material. The end-to-end distance between an end portion of the electrode and a nonlinear resistor end portion including the side-surface high resistance layer falls within a range of 0 mm to the thickness of the side-surface high resistance layer+0.01 mm.
摘要翻译： 非线性电阻器包括以氧化锌为主要成分的烧结体，设置在烧结体的侧面的侧面高电阻层以及布置在烧结体的上表面和下表面的电极。 侧面高电阻层由特定选择的材料形成。 电极的端部与包括侧面高电阻层的非线性电阻器端部之间的端对端距离在与侧面高电阻层的厚度为0.01mm的范围内。
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公开(公告)号：US4172268A
公开(公告)日：1979-10-23
申请号：US837092
申请日：1977-09-28
申请人： Satoru Yanabu , Susumu Nishiwaki
发明人： Satoru Yanabu , Susumu Nishiwaki
CPC分类号： H01H33/596 , Y10T307/911
摘要： A direct current circuit interrupting apparatus of the type wherein the arc of the circuit interruptor is extinguished by passing an oscillatory current from an oscillating circuit to the interrupted contacts via a switch means which is closed at the time when the circuit interruptor is opened includes a nonlinear resistor comprising a sintered mixture of metal oxides connected in parallel with the oscillating circuit.
摘要翻译： 一种直流电路中断装置，其中电路断路器的电弧通过使振荡电流从振荡电路经过断开的触点经由在断路器断开时闭合的开关装置而被熄灭的直流电路中断装置包括非线性 电阻器包括与振荡电路并联连接的金属氧化物的烧结混合物。
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公开(公告)号：US4326232A
公开(公告)日：1982-04-20
申请号：US138675
申请日：1980-04-09
申请人： Susumu Nishiwaki , Toshikazu Satoh
发明人： Susumu Nishiwaki , Toshikazu Satoh
CPC分类号： H01C7/12
摘要： A lightning arrestor comprising at least two stacks of resistor disks juxtaposed within a housing and electrically connected in parallel. The stacks include the same number of disks, at least 35, and preferably 100 or more. Each stack comprises at least two sub-stacks which are aligned end-to-end and electrically connected. Adjacent sub-stacks of parallel stacks are mechanically connected but electrically insulated from each other.
摘要翻译： 一种避雷器，包括至少两个电阻盘堆叠并置在壳体内并并联连接。 堆叠包括相同数量的盘，至少35，优选100或更多。 每个堆叠包括至少两个子堆叠，其被端对端对准并电连接。 并联堆叠的相邻子堆叠机械连接但彼此电绝缘。
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公开(公告)号：US3968393A
公开(公告)日：1976-07-06
申请号：US562770
申请日：1975-03-27
申请人： Minoru Murano , Satoru Yanabu , Susumu Nishiwaki , Soji Kojima , Teiichi Ueki
发明人： Minoru Murano , Satoru Yanabu , Susumu Nishiwaki , Soji Kojima , Teiichi Ueki
CPC分类号： H01T1/04
摘要： Within an arc extinguishing chamber are disposed a pair of main electrodes so as to cause a spark starting gap to be defined therebetween. A single auxiliary electrode is also disposed so as to cause reignition in those interspaces between the auxiliary electrode and the respective main electrodes at positions distant from said spark starting gap. Further, paths for supplying therethrough a heated gas to the reigniting spark gaps when the feet at one side of the arcs between the respective main electrodes and the auxiliary electrode have arrived at the prescribed points of the auxiliary electrode are provided.
摘要翻译： 在灭弧室内设置一对主电极，以便在其间限定火花起始间隙。 单个辅助电极也被布置成在远离所述火花起始间隙的位置处在辅助电极和相应主电极之间的间隙中引起重新点火。 此外，提供了当在各个主电极和辅助电极之间的电弧的一侧的脚已经到达辅助电极的规定点时，将加热的气体供给到重燃火花隙的路径。
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公开(公告)号：US08310106B2
公开(公告)日：2012-11-13
申请号：US12516717
申请日：2007-11-29
申请人： Tadashi Koshiduka , Minoru Saito , Susumu Nishiwaki , Nobuyuki Takahashi , Koichi Futagami , Yoshimasa Sato , Tsuyoshi Kokumai , Hiroshi Kusuyama
发明人： Tadashi Koshiduka , Minoru Saito , Susumu Nishiwaki , Nobuyuki Takahashi , Koichi Futagami , Yoshimasa Sato , Tsuyoshi Kokumai , Hiroshi Kusuyama
CPC分类号： H02H9/002 , H01H9/563 , Y10T307/826
摘要： To suppress the magnetizing inrush current occurring when supplying power of three phases of the transformer are performed simultaneously using three single-phase circuit breakers or a non-phase segregated operation-type circuit breaker, without providing a circuit breaker with a resistor or other equipment. A magnetizing inrush current suppression method for transformer suppresses a magnetizing inrush current occurring at the start of energizing of a three-phase transformer 300, when a three-phase power supply 100 is input to a terminal of each phase by means of a three-phase circuit breaker 200. In the method, by integrating phase voltages or line-to-line voltages on the primary side or the secondary side or the tertiary side when three-phase AC voltages are applied in a steady state to the transformer 300, steady-state magnetic flux 4, 5, 6 for each phase of the transformer is calculated, and the polarity and magnitude of the residual magnetic flux 7, 8, 9 of each phase of the transformer after the circuit breaker 200 shuts off the transformer are calculated, and the three-phase circuit breaker is caused to close simultaneously in a region 13 in which three phases overlap, each of the three phases having the polarity of the steady-state magnetic flux 4, 5, 6 equal to the polarity of the residual magnetic flux 7, 8, 9 for each phase of the transformer.
摘要翻译： 使用三相单相断路器或非相分离式运行型断路器同时进行供给变压器的三相供电时发生的励磁浪涌电流，而不用断路器而设置电阻器或其他设备。 用于变压器的励磁涌流抑制方法抑制在三相变压器300的通电开始时发生的磁化浪涌电流，当三相电源100通过三相电压被输入到每相的端子时 在这种方法中，当三相AC电压以稳定状态施加到变压器300时，通过在初级侧或次级侧或第三级上对相电压或线间电压进行积分， 计算变压器各相的状态磁通4,5,6，计算断路器200断开变压器后的变压器各相的剩余磁通7,8,9的极性和大小， 并且三相断路器在三相重叠的区域13中同时闭合，具有稳态磁通4,5,6的极性的三相中的每一个相等于 变压器各相的剩余磁通量7,8,9。
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7.发明申请公开(公告)号：US20100141235A1
公开(公告)日：2010-06-10
申请号：US12516717
申请日：2007-11-29
申请人： Tadashi Koshiduka , Minoru Saito , Susumu Nishiwaki , Nobuyuki Takahashi , Koichi Futagami , Yoshimasa Sato , Tsuyoshi Kokumai , Hiroshi Kusuyama
发明人： Tadashi Koshiduka , Minoru Saito , Susumu Nishiwaki , Nobuyuki Takahashi , Koichi Futagami , Yoshimasa Sato , Tsuyoshi Kokumai , Hiroshi Kusuyama
IPC分类号： H01H9/56
CPC分类号： H02H9/002 , H01H9/563 , Y10T307/826
摘要： To suppress the magnetizing inrush current occurring when supplying power of three phases of the transformer are performed simultaneously using three single-phase circuit breakers or a non-phase segregated operation-type circuit breaker, without providing a circuit breaker with a resistor or other equipment. A magnetizing inrush current suppression method for transformer suppresses a magnetizing inrush current occurring at the start of energizing of a three-phase transformer 300, when a three-phase power supply 100 is input to a terminal of each phase by means of a three-phase circuit breaker 200. In the method, by integrating phase voltages or line-to-line voltages on the primary side or the secondary side or the tertiary side when three-phase AC voltages are applied in a steady state to the transformer 300, steady-state magnetic flux 4, 5, 6 for each phase of the transformer is calculated, and the polarity and magnitude of the residual magnetic flux 7, 8, 9 of each phase of the transformer after the circuit breaker 200 shuts off the transformer are calculated, and the three-phase circuit breaker is caused to close simultaneously in a region 13 in which three phases overlap, each of the three phases having the polarity of the steady-state magnetic flux 4, 5, 6 equal to the polarity of the residual magnetic flux 7, 8, 9 for each phase of the transformer.
摘要翻译： 使用三相单相断路器或非相分离式运行型断路器同时进行供给变压器的三相供电时发生的励磁浪涌电流，而不用断路器而设置电阻器或其他设备。 用于变压器的励磁涌流抑制方法抑制在三相变压器300的通电开始时发生的磁化浪涌电流，当三相电源100通过三相电压被输入到每相的端子时 在这种方法中，当三相AC电压以稳定状态施加到变压器300时，通过在初级侧或次级侧或第三级上对相电压或线间电压进行积分， 计算变压器各相的状态磁通4,5,6，计算断路器200断开变压器后的变压器各相的剩余磁通7,8,9的极性和大小， 并且三相断路器在三相重叠的区域13中同时闭合，具有稳态磁通4,5,6的极性的三相中的每一个相等于 变压器各相的剩余磁通量7,8,9。
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公开(公告)号：US4389693A
公开(公告)日：1983-06-21
申请号：US335639
申请日：1981-12-30
申请人： Satoru Yanabu , Susumu Nishiwaki , Mizuho Yamashita , Toshikazu Satoh , Yoichi Murakami , Susumu Imai
发明人： Satoru Yanabu , Susumu Nishiwaki , Mizuho Yamashita , Toshikazu Satoh , Yoichi Murakami , Susumu Imai
摘要： An arrester having at least two stacks of non-linear resistors connected in series, an arcing gap device connected to shunt one stack of resistors when the gap means sparks over, and a hermetically sealed housing enclosing the resistor stacks and arcing gap device and filled with sulfur hexafluoride gas having a gauge pressure not less than 2 kg/cm.sup.2. The impedance of the one resistor stack is from about 15% to about 35% of the total impedance of the two resistor stacks when the arcing gap means sparks over, and the rated voltage of the arrester is not less than about 50 KV.
摘要翻译： 具有串联连接的至少两个非线性电阻堆的避雷器，当间隙装置火花时，连接用于分流一堆电阻器的电弧间隙装置，以及封闭电阻器堆叠和电弧间隙装置的气密密封的壳体， 表压不小于2kg / cm2的六氟化硫气体。 当电弧间隙意味着火花时，一个电阻器堆叠的阻抗是两个电阻器堆叠的总阻抗的约15％至约35％，并且避雷器的额定电压不低于约50KV。
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公开(公告)号：US6163245A
公开(公告)日：2000-12-19
申请号：US217188
申请日：1998-12-22
摘要： A nonlinear resistor is formed by forming side surface insulating layer 2 on a sintered body 1 which contains zinc oxide as a main component and providing a pair of electrodes 3 on upper and lower surfaces of the sintered body 1. The electrodes 3 are formed by plasma thermal spraying of less than 10 kW in an atmosphere in which an oxygen concentration is set to 22 volume % or less. The electrodes 3 are formed of aluminum, copper, zinc, nickel, silver, or their alloy whose average particle size is within 5 .mu.m to 50 .mu.m. Preferably porosity is less than 15%, weight percentage of metal oxide is less than 25%, average film thickness is within 5 .mu.m to 500 .mu.m, average surface roughness is less than 8 .mu.m, and resistivity is less than 15 .mu..OMEGA..multidot.cm. Accordingly, the nonlinear resistor having the excellent discharge withstand can be provided.
摘要翻译： 通过在包含氧化锌作为主要成分的烧结体1上形成侧面绝缘层2并在烧结体1的上表面和下表面上设置一对电极3来形成非线性电阻器。电极3由等离子体 在将氧浓度设定为22体积％以下的气氛中进行小于10kW的热喷涂。 电极3由平均粒径在5μm〜50μm左右的铝，铜，锌，镍，银或它们的合金形成。 优选孔隙率小于15％，金属氧化物的重量百分比小于25％，平均膜厚度在5μm至500μm之间，平均表面粗糙度小于8μm，电阻率小于15μmOMEGA xcm。 因此，可以提供具有优异的放电耐受性的非线性电阻器。
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公开(公告)号：US5045652A
公开(公告)日：1991-09-03
申请号：US361032
申请日：1989-06-02
摘要： A disconnector for a gas insulated switchgear in which the disconnector includes, in a metallic container filled with an insulated gas, a stationary electrode having a contact, a stationary electrode shield electrically connected to the stationary electrode to surround the contact, the stationary electrode shield made of an electrically resistant material and having a free end portion and inner and outer surfaces, and a movable electrode arranged to face the contact and being movable into and out of electrical contact with the contact, and in which the stationary electrode shield is arranged to flow discharging current therethrough due to an interelectrode voltage applied between the stationary electrode and the movable electrode. The disconnector includes an annular metallic electrode coaxially mounted on the free end portion of the stationary electrode shield so as to allow the movable electrode to pass therethrough. The metallic electrode has an exposed surface exposed to the insulated gas and the exposed surface of the metallic electrode is adapted to be larger in field strength than the inner and outer surfaces of the stationary electrode shield for producing the discharge between the exposed surface of the metallic electrode and the movable electrode.
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