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1. 发明授权

US5038082A Vacuum switch apparatus 失效
标题翻译：真空开关装置
公开(公告)号：US5038082A
公开(公告)日：1991-08-06
申请号：US489666
申请日：1990-03-07
申请人： Hiroshi Arita , Kouzi Suzuki , Hiroyuki Sugawara , Yukio Kurosawa
发明人： Hiroshi Arita , Kouzi Suzuki , Hiroyuki Sugawara , Yukio Kurosawa
IPC分类号： B01D59/34 , H01H33/66 , H01J17/56 , H01J21/18 , H01S3/097 , H01T2/00
CPC分类号： H01J17/56 , H01J21/18
摘要： A vacuum switch apparatus has an electrically insulating vacuum enclosure which is evacuated to a vacuum degree of 2.times.10.sup.-2 Torr or less. One set of anode and cathode electrodes is arranged in the vacuum enclosure, having capacity which permits the flow of a discharge current of at least 1 KA therebetween and being operable to switch the discharge current at least 10.sup.6 shots. A high voltage power supply applies a high voltage of at least 20 KV across the anode and cathode electrodes. An electron beam irradiation unit irradiates an electron beam on the anode electrode through the cathode electrode. A control electrode is arranged between the beam irradiation unit and the cathode electrode, for controlling passage and interception of the electron beam. A control voltage power supply applies a control voltage to the control electrode. An electromagnetic coil is arranged at least exteriorly of the vacuum enclosure, for generating electromagnetic force which prevents the electron beam, emitted from the electron beam irradiation unit and reaching the anode electrode through the control and cathode electrodes, from being scattered.

2. 发明授权

US5305174A Method of and device for protecting electrical power system 失效
标题翻译：保护电力系统的方法和装置
公开(公告)号：US5305174A
公开(公告)日：1994-04-19
申请号：US753945
申请日：1991-09-03
申请人： Masao Morita , Toshiaki Ueda , Yukio Kurosawa , Hiroshi Arita , Tokio Yamagiwa
发明人： Masao Morita , Toshiaki Ueda , Yukio Kurosawa , Hiroshi Arita , Tokio Yamagiwa
IPC分类号： H02H9/02 , F02B75/02 , H02H3/02 , H02H7/30 , H02H3/08
CPC分类号： H02H7/30 , H02H3/025 , F02B2075/027
摘要： An electrical power system protection device includes a circuit breaker and a switch connected in series to a power line. The protection device also has a current limiting element connected in parallel to the circuit breaker. When the level of electrical current flowing in the power line, detected by a current detector, has exceeded a predetermined first set level, a first over-current detector delivers immediately a trip command to the circuit breaker. As a consequence, fault current is commutated to the current limiting element so that any drop of voltage in the power line upstream of the circuit breaker is greatly suppressed. When a state in which a predetermined second set level is exceeded by the detected current level is continued beyond a predetermined period, a second over-current detector delivers an off command to the switch, thus protecting the upstream portion of the power line against the fault in this power line. The current level is set to fall within a range which activates a momentary element of an over-current relay of a receiving end breaker of a downstream sub-system connected to the power line. In the event of a failure in the downstream power line, the receiving end breaker is tripped immediately so that the sound portion of the power line is reset to a normal state of operation.
摘要翻译：电力系统保护装置包括断路器和与电力线串联连接的开关。保护装置还具有与断路器并联连接的限流元件。当由电流检测器检测到的在电力线中流动的电流的电平已经超过预定的第一设定电平时，第一过电流检测器立即向断路器提供跳闸命令。因此，故障电流被转换到限流元件，从而大大抑制了在断路器上游的电力线中的任何电压下降。当预定的第二设定电平超过检测到的电流电平的状态持续超过预定周期时，第二过电流检测器向开关递送关断命令，从而保护电力线的上游部分免受故障在这条电力线上。当前电平被设定为在激活连接到电力线的下游子系统的接收端断路器的过电流继电器的瞬时元件的范围内。在下游电力线路发生故障的情况下，接收端子断路器立即跳闸，使得电力线路的声音部分被复位到正常的操作状态。

3. 发明授权

US5563459A Apparatus for controlling opening and closing timings of a switching device in an electric power system 失效
标题翻译：一种用于控制电力系统中的开关装置的开闭定时的装置
公开(公告)号：US5563459A
公开(公告)日：1996-10-08
申请号：US613132
申请日：1990-11-15
申请人： Yukio Kurosawa , Hiroshi Arita , Kunio Hirasawa , Tadashi Sato
发明人： Yukio Kurosawa , Hiroshi Arita , Kunio Hirasawa , Tadashi Sato
IPC分类号： H01H33/59 , F02B75/02 , H01H9/54 , H01H9/56
CPC分类号： H01H9/56 , F02B2075/027 , H01H9/563 , Y10T307/957
摘要： An apparatus for controlling a switching device provided for breaking or closing a power line connecting a power source to a load in an electric power system includes a switching timing control unit for controlling the timing to apply a breaking signal to said switching device in response to a breaking signal externally applied thereto so that the contacts of said switching device are opened during a period of time when the current flowing through said power line first reaches its peak value from a zero value and for controlling the timing of applying a closing signal to said switching device in response to a closing command preferably externally applied thereto so that the contacts of said switching device are closed when the voltage of said power source becomes a predetermined value depending upon whether said load is capacitive or inductive, and an operating unit for opening and closing said contacts of said switching device in response to said breaking and closing signals, respectively.
摘要翻译：一种用于控制开关装置的装置，其用于断开或关闭将电源连接到电力系统中的负载的电力线路，包括切换定时控制单元，用于响应于所述切换装置控制对所述开关装置施加断路信号的定时在外部施加的断开信号，使得在流经所述电力线的电流首先从零值到达其峰值的时间段期间，所述开关装置的触点断开，并且用于控制将闭合信号施加到所述开关的定时装置，其响应于优选地外部施加到其上的关闭命令，使得当所述电源的电压根据所述负载是电容性还是电感而变为预定值时，所述开关装置的触点闭合，以及用于打开和关闭的操作单元所述开关装置的所述触点响应于所述断开和闭合信号太好了

4. 发明授权

US5467049A Solid-state switch 失效
标题翻译：固态开关
公开(公告)号：US5467049A
公开(公告)日：1995-11-14
申请号：US91623
申请日：1993-07-15
申请人： Junzo Kida , Hiroshi Arita , Yukio Kurosawa
发明人： Junzo Kida , Hiroshi Arita , Yukio Kurosawa
IPC分类号： G05F1/12 , H03K17/10 , H03K17/725 , H03K17/72
CPC分类号： H03K17/725 , H03K17/105
摘要： A solid-state switch has a plurality of gate turn-off thyristors connected in the rungs of a ladder circuit and a plurality of diodes connected in the side rails of the ladder circuit. The anode of the first gate turn-off thyristor is connected to the cathodes of the first and second diodes, the cathode of the first gate turn-off thyristor is connected to the anodes of the third and fourth diodes. The cathode of the second gate turn-off thyristor is connected to the anode of the second diode and the anode of the fifth diode, the anode of the second gate turn-off thyristor is connected to the cathode of the fourth diode and the cathode of the sixth diode. The anode of the first diode and the cathode of the third diode are connected together at a common point, which is selected to be one terminal of the switch. The cathode of the fifth diode and the anode of the sixth diode or the anode of one and the cathode of the other one of the last two diodes of the ladder circuit are connected together at a common point, which is selected to be the other terminal of the switch.
摘要翻译：固态开关具有连接在梯形电路的梯级中的多个栅极截止晶闸管和连接在梯形电路的侧轨中的多个二极管。第一栅极截止晶闸管的阳极连接到第一和第二二极管的阴极，第一栅极截止晶闸管的阴极连接到第三和第四二极管的阳极。第二栅极截止晶闸管的阴极连接到第二二极管的阳极和第五二极管的阳极，第二栅极截止晶闸管的阳极连接到第四二极管的阴极和第四二极管的阴极第六个二极管。第一二极管的阳极和第三二极管的阴极在共同的点连接在一起，其被选择为开关的一个端子。第五二极管的阴极和第六二极管的阳极或一个的阳极和梯形电路的最后两个二极管中另一个的另一个的阴极在共同的点连接在一起，其被选择为另一个端子的开关。

5. 发明授权

US4427857A Vacuum interrupter 失效
标题翻译：真空灭弧室
公开(公告)号：US4427857A
公开(公告)日：1984-01-24
申请号：US319985
申请日：1981-11-10
申请人： Nobuo Abe , Hiroyuki Sugawara , Yukio Kurosawa , Akira Wada , Kiyoji Iwashita
发明人： Nobuo Abe , Hiroyuki Sugawara , Yukio Kurosawa , Akira Wada , Kiyoji Iwashita
IPC分类号： H01H33/66 , H01H33/664
CPC分类号： H01H33/6644 , H01H33/6643
摘要： A vacuum interrupter of parallel magnetic field electrode type comprising a pair of separatable arc electrodes disposed within a vacuum vessel, with each being provided on its back side with a conductive rod extending outwardly of the vacuum vessel. Coil electrodes are electrically connected between the associated arc electrode and rod for applying parallel magnetic fields to arc, and slits are formed in the arc electrodes for suppressing eddy currents of the arc electrodes resulting from the parallel fields. A reinforcement member of an electric conductivity higher than a main surface portion of the arc electrode is provided on the back side of the arc electrode opposite to said main surface portion so that the resulting arc current flows uniformly through the reinforcement member so that a higher interruption efficiency can be obtained for the vacuum interrupter.
摘要翻译：一种并联磁场电极型真空断路器，包括设置在真空容器内的一对可分离的电弧电极，每个在其后侧设置有一个向该真空容器向外延伸的导电棒。线圈电极电连接在相关联的电弧电极和棒之间，用于将平行磁场施加到电弧上，并且在电弧电极中形成狭缝以抑制由平行场引起的电弧电极的涡流。在电弧电极的与所述主表面部分相对的背面上设置有比电弧电极的主表面部分高的电导率的加强部件，使得所产生的电弧电流均匀地流过加强部件，使得较高的中断可以获得真空断路器的效率。

6. 发明授权

US4163130A Vacuum interrupter with pressure monitoring means 失效
标题翻译：带压力监控装置的真空灭弧室
公开(公告)号：US4163130A
公开(公告)日：1979-07-31
申请号：US708098
申请日：1976-07-23
申请人： Yoshiyuki Kubota , Yukio Kurosawa , Hiroyuki Sugawara
发明人： Yoshiyuki Kubota , Yukio Kurosawa , Hiroyuki Sugawara
IPC分类号： H01H33/668 , H01H33/66
CPC分类号： H01H33/668
摘要： A vacuum interrupter with pressure monitoring means wherein a pair of separable electrodes are arranged within a highly evacuated envelope and are connected to a high voltage circuit provided with a vacuum pressure detector element which has a pair of detector electrodes insulated from each other and serving to detect the pressure of the vacuum within the evacuated envelope. The vacuum pressure detector element has a voltage applied thereto in such a manner that one of the detector electrodes is conductively connected to the one end of the evacuated envelope to which the high voltage circuit is connected and the other detector electrode is connected to ground potential through a series connection member consisting of different sorts of voltage allotment elements which are selected from a resistance, an inductance, and a capacitor and whose voltage allotment ratio varies in dependence on frequency. A vacuum pressure detector means detects the operation of the vacuum pressure detector element.
摘要翻译：一种具有压力监测装置的真空断路器，其中一对可分离电极被布置在高度抽真空的外壳内并且连接到具有真空压力检测器元件的高压电路，所述真空压力检测器元件具有彼此绝缘的一对检测器电极，并用于检测抽真空的真空内的真空压力。真空压力检测器元件具有施加到其上的电压，使得检测器电极之一导电连接到连接有高压电路的真空外壳的一端，另一个检测器电极通过由电阻，电感和电容器选择的不同种类的电压分配元件组成的串联连接元件，其电压分配比根据频率而变化。真空压力检测器装置检测真空压力检测器元件的操作。

7. 发明授权

US4210790A Vacuum-type circuit interrupter 失效
标题翻译：真空式断路器
公开(公告)号：US4210790A
公开(公告)日：1980-07-01
申请号：US802941
申请日：1977-06-02
申请人： Yukio Kurosawa , Hiroyuki Sugawara , Yukio Kawakubo
发明人： Yukio Kurosawa , Hiroyuki Sugawara , Yukio Kawakubo
IPC分类号： H01H33/66 , H01H33/664
CPC分类号： H01H33/6644 , H01H33/6643
摘要： A pair of relatively movable opposed electrodes for use in a vacuum-type circuit interrupter, each electrode comprising an annular contact-making portion provided at its outer peripheral area, a recessed portion surrounded by this annular contact-making portion, first self-acting magnetically-driving means for driving an arc produced on the surface of the annular contact-making portion to impel the same in a circumferential direction, and second self-acting magnetically driving means for driving an arc produced on the surface of the recessed portion to impel the same toward and onto the surface of the contact-making portion.
摘要翻译：一种用于真空型电路断续器的相对移动的相对电极，每个电极包括设置在其外围区域的环形接触形成部分，由该环形接触形成部分包围的凹陷部分，用于驱动在环形接触部分的表面上产生的电弧沿圆周方向推动的驱动装置，以及用于驱动在凹部的表面上产生的电弧的第二自动磁驱动装置，与接触部分的表面相同。

8. 发明授权

US4196327A Vacuum interrupter 失效
标题翻译：真空灭弧室
公开(公告)号：US4196327A
公开(公告)日：1980-04-01
申请号：US857706
申请日：1977-12-05
申请人： Yukio Kurosawa , Yukio Kawakubo , Hiroyuki Sugawara
发明人： Yukio Kurosawa , Yukio Kawakubo , Hiroyuki Sugawara
IPC分类号： H01H33/66 , H01H33/664
CPC分类号： H01H33/6644 , H01H33/6643
摘要： A vacuum interrupter comprises a pair of opposed conductor rods extending exteriorlly of a vacuum vessel, a pair of main electrodes mounted to ends of the paired conductor rods and separable from each other, and coil electrodes which induce axial magnetic flux acting on arc produced when one main electrode separates from the other main electrode. The coil electrode includes a first arm section connected to the conductor rod and passing the current coming from one portion of the conductor rod radially thereof, a branching section for branching the current from the first arm section in reverse directions, and a second arm section for passing the branched currents until they are totalized again at the other portion of the conductor rod separated from the one portion by a spacer interposed between the first and second arm sections, whereby magnetic flux induced by the branched currents is cancelled out at the conductor rod, preventing the generation of eddy current in the conductor rod.
摘要翻译：真空断路器包括一对相对的导体棒，其在真空容器的外部延伸，一对主电极安装到成对的导体棒的端部并且彼此分离，以及线圈电极，其引起作用在电弧上的轴向磁通，当一个主电极与另一个主电极分离。线圈电极包括连接到导体棒并使来自导体棒的一部分径向的电流的第一臂部分，用于使来自第一臂部分的电流相反方向分支的分支部分，以及用于通过分支电流，直到它们在导体杆的另一部分再次被分离，该导体杆的一部分与介于第一和第二臂部分之间的隔离物分隔开，由分支电流引起的磁通在导体棒处被抵消，防止在导体棒中产生涡流。

9. 发明授权

US5759646A Vessel of pyrolytic boron nitride 失效
标题翻译：热解氮化硼的容器
公开(公告)号：US5759646A
公开(公告)日：1998-06-02
申请号：US699148
申请日：1996-08-16
申请人： Shoji Kano , Nobuo Kawada , Ryoji Nakajima , Yukio Kurosawa
发明人： Shoji Kano , Nobuo Kawada , Ryoji Nakajima , Yukio Kurosawa
IPC分类号： C04B41/87 , C04B35/583 , C04B41/50 , C04B41/51 , C04B41/85 , C04B41/88 , C30B15/10 , C30B23/06 , C30B35/00 , H01L21/203 , B01L3/04
CPC分类号： C04B41/009 , C04B41/5001 , C04B41/5133 , C04B41/85 , C04B41/88 , C30B15/10 , C30B23/06 , C30B35/002 , Y10T428/131 , Y10T428/1317
摘要： Proposed is an improvement in a vessel, e.g., crucible, of pyrolytic boron nitride (PBN) used, for example, in the process of molecular beam epitaxy for melting silicon and the like at a high temperature. Different from conventional PBN crucibles used for such a process, in which contamination of high-purity silicon is unavoidable by the reaction of molten silicon with PBN or a thermal decomposition products of boron nitride, the inventive PBN vessel is provided on the surface with a protective coating layer of pyrolytic graphite or a refractory metal such as platinum so as not to cause troubles due to contamination of high-purity silicon melted therein with the crucible materials.
摘要翻译：提出了在例如用于在高温下熔化硅等的分子束外延过程中使用的热解氮化硼（PBN）的容器（例如坩埚）的改进。与用于这种工艺的常规PBN坩埚不同，其中高纯度硅的污染是熔融硅与PBN或氮化硼的热分解产物的反应所不可避免的，本发明的PBN容器在表面上提供有保护热解石墨或难熔金属如铂的涂层，以免由于用坩埚材料熔化的高纯度硅的污染而引起麻烦。

10. 发明授权

US5502290A Switch mechanism 失效
标题翻译：开关机构
公开(公告)号：US5502290A
公开(公告)日：1996-03-26
申请号：US483878
申请日：1995-06-07
申请人： Osamu Koyanagi , Kunio Hirasawa , Masanori Tsukushi , Yukio Kurosawa , Tadashi Sato , Youichi Ohshita
发明人： Osamu Koyanagi , Kunio Hirasawa , Masanori Tsukushi , Yukio Kurosawa , Tadashi Sato , Youichi Ohshita
IPC分类号： H01H33/34 , H01H33/56
CPC分类号： H01H33/34 , H01H33/563
摘要： A switching mechanism for use e.g. in a circuit breaker of an underground electric substation has a movable rod which causes opening and closing of an electrical contact and a hydraulic operating system. The hydraulic operating system uses a hydraulic fluid which has a high flammability temperature or is incombustible. Thus, even if such fluid leaks from the hydraulic operating system, the risk of fire or explosion is minimized. The hydraulic operating system may have a sealed tank for the fluid, preferably with a variable volume expansion chamber. In a further development, the hydraulic operating system and possibly parts of the movable rod, is enclosed in a casing which is sealed and is filled with a gas which does not support combustion therein. Thus, the risk of fire or explosion is further reduced. The casing may have a variable volume expansion chamber.
摘要翻译：一种切换机制。在地下电力变电站的断路器中具有使电触头和液压操作系统打开和关闭的活动杆。液压操作系统使用具有高可燃性温度或不燃的液压油。因此，即使这种液体从液压操作系统泄漏，也会使火灾或爆炸的风险最小化。液压操作系统可以具有用于流体的密封罐，优选地具有可变体积膨胀室。在进一步的发展中，液压操作系统和可能的可移动杆的部分被封装在密封的壳体中并且填充有不支持燃烧的气体。因此，进一步降低了火灾或爆炸的危险。壳体可以具有可变体积膨胀室。

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