公开(公告)号：EP2157593B1

公开(公告)日：2016-01-06

申请号：EP09010136.1

申请日：2009-08-05

申请人： Hitachi, Ltd.

发明人： Sato, Takashi ,  Tsuchiya, Kenji ,  Morita, Ayumu

IPC分类号： H01H33/66

CPC分类号： H01H33/666 ,  H01H31/003 ,  H01H2033/6623 ,  H01H2033/6668

公开(公告)号：EP2565897B1

公开(公告)日：2014-10-08

申请号：EP12180748.1

申请日：2012-08-16

申请人： Hitachi, Ltd.

发明人： Utsumi, Tomoaki ,  Sato, Takashi ,  Shirone, Takashi ,  Hosono, Takafumi ,  Tsuchiya, Kenji ,  Morita, Ayumu ,  Kobayashi, Masato

IPC分类号： H01H31/00 ,  H01H33/12 ,  H02B13/035 ,  H01H33/666

CPC分类号： H01H31/003 ,  H01H33/122 ,  H01H33/143 ,  H01H33/6661 ,  H01H2033/6623 ,  H02B13/0354

公开(公告)号：EP2709132A2

公开(公告)日：2014-03-19

申请号：EP13181519.3

申请日：2013-08-23

申请人： Hitachi, Ltd.

发明人： Kikuchi, Shigeru ,  Morita, Ayumu ,  Tsuchiya, Kenji ,  Yabu, Masato ,  Nakazawa, Akio

IPC分类号： H01H1/02 ,  H01H33/664

CPC分类号： H01H1/025 ,  H01H1/0206 ,  H01H1/029 ,  H01H33/6643

摘要： According to the present invention an electrical contact (1) is provided, which is cheap, has an excellent workability and maintains the effect of chopping current reduction. The electrical contact comprises a Cu matrix, and compounds Cu and low melting point metal which are dispersed in the Cu matrix, wherein the vapor pressure of the low melting point metal is more than 10 5 Pa at 1000 °C, the compound has a stoichiometric ratio which is the value of the low melting metal / Cu which is greater than 0.5, and the longitudinal direction of the compound is oriented at an angle of 90 ° ± 10 ° to the contact surfaces. The method of manufacturing the electrical contact comprises the steps of stretching the mixture of the Cu matrix with the compounds by 70-85% while heating, using the surfaces of the electrical contact as a contact.

摘要翻译： 根据本发明，提供了一种便宜的电触点（1），其具有优良的可加工性并且保持了斩波电流减小的效果。 电触点包括Cu基体，以及分散在Cu基体中的化合物Cu和低熔点金属，其中低熔点金属的蒸气压在1000℃下大于105Pa，该化合物具有化学计量比 这是低熔点金属/ Cu的值大于0.5，并且化合物的纵向方向与接触表面成90°±10°的角度取向。 制造电触头的方法包括以下步骤：使用电触头的表面作为触头在加热的同时将Cu基体与化合物的混合物拉伸70-85％。

公开(公告)号：EP2498354A3

公开(公告)日：2013-12-25

申请号：EP12154884.6

申请日：2012-02-10

申请人： Hitachi Ltd.

发明人： Kobayashi, Masato ,  Suzuki, Masato ,  Morita, Ayumu

IPC分类号： H02B11/133

CPC分类号： H02B11/133 ,  H01H9/10 ,  H01H9/26 ,  H01H71/505 ,  H01H71/52 ,  H02B11/26

摘要： To provide an interlock device satisfying that a draw-out type circuit breaker is firmly fixed at an operation position and a disconnected position, is always in an open state when the draw-out type circuit breaker is moved from the operation position and is moved to the operation position, and remains in the open state while the draw-out type circuit breaker is placed at a position other than the operation position and the disconnection position; the interlock device is provided with a tripping button 1 that is linked to a tripping mechanism of the draw-out type circuit breaker and an interlock rod 3 that is placed so as to be movable up and down, and is constructed so that the tripping button 1 mechanically prevents an operation to raise the interlock rod 3 unless the tripping button 1 is operated to place the draw-out type circuit breaker in the open state, so a power distribution board floor surface or a member 55 fixed on the power distribution board floor surface and the interlock rod 3 interfere with each other, thereby the draw-out type circuit breaker is fixed at a prescribed position in a power distribution board.

公开(公告)号：EP2639903A1

公开(公告)日：2013-09-18

申请号：EP13155609.4

申请日：2013-02-18

申请人： Hitachi Ltd.

发明人： Yabu, Masato ,  Tsuchiya, Kenji ,  Morita, Ayumu

IPC分类号： H02B13/035 ,  H02B13/075 ,  H02B13/01

CPC分类号： H01H33/66207 ,  H02B13/01 ,  H02B13/0354 ,  H02B13/075

摘要： The switchgear includes a vacuum circuit breaker 1 that is disposed in a circuit breaker chamber 17 compartmented by a grounded metal plate, a busbar 4 that is disposed in a busbar chamber 19 and connected to the vacuum circuit breaker 1 through a conductor 3A, a cable 10 that is disposed in a cable chamber 20 and connected at one end to a load side, and a grounding device 5 that is operated by a grounding device actuator 6 disposed in a grounding device actuator chamber 18, connected to the vacuum circuit breaker 1 through a conductor 3B, and connected to the other end of the cable. The busbar 4 is formed by a solid-insulated busbar. The conductor 3A connecting the vacuum circuit breaker 17 to the busbar 4 and the conductor 3B connecting the vacuum circuit breaker 1 to the grounding device 5 are both formed by a solid-insulated conductor. The circuit breaker chamber 17 and the grounding device 5 have a sealed structure.

摘要翻译： 开关柜包括一个真空断路器1，该真空断路器1设置在由接地金属板隔开的断路器室17中，汇流条4设置在母线室19中，并通过导线3A连接到真空断路器1，电缆 10，其布置在电缆室20中，并且一端连接到负载侧;以及接地装置5，其由设置在接地装置致动器室18中的接地装置致动器6操作，连接到真空断路器1，通过 导体3B，并连接到电缆的另一端。 母线4由固体绝缘母线形成。 将真空断路器17连接到母线4的导体3A和将真空断路器1连接到接地装置5的导体3B均由固体绝缘导体形成。 断路器室17和接地装置5具有密封结构。

公开(公告)号：EP2365504B1

公开(公告)日：2012-05-09

申请号：EP11002461.9

申请日：2010-08-03

申请人： Hitachi, Ltd.

发明人： Yamazaki, Miki ,  Tsuchiya, Kenji ,  Morita, Ayumu ,  Kobayashi, Masato ,  Kikukawa, Shuichi ,  Kikuchi, Shigeru

IPC分类号： H01H11/04 ,  H01H33/664

CPC分类号： H01H33/664 ,  H01H11/041 ,  H01H11/045 ,  H01H33/6643 ,  Y10T29/49105

公开(公告)号：EP2362400A3

公开(公告)日：2011-10-12

申请号：EP11154050.6

申请日：2011-02-10

申请人： Hitachi Ltd.

发明人： Kikuchi, Shigeru ,  Morita, Ayumu ,  Sato, Takashi

IPC分类号： H01H1/025 ,  H01H1/0237

CPC分类号： H01H1/025 ,  H01H1/0237

摘要： An electrical contact made of a sintered body comprising particles of a refractory metal selected from the group consisting of C, Mo and W, particles of copper with an electrical conductivity of 95 % or more of an oxygen free pure copper, and particles of an easily oxidizable metal having a free energy for oxide formation lower than those of the refractory metal and the high conductive metal, and a melting point of the easily oxidizable metal being high than that of the high conductive metal, wherein the particles of copper bind the particles of the refractory metal and easily oxidizable metal.

公开(公告)号：EP2323148A1

公开(公告)日：2011-05-18

申请号：EP10190812.7

申请日：2010-11-11

申请人： Hitachi Ltd.

发明人： Kikuchi, Shigeru ,  Baba, Noboru ,  Morita, Ayumu ,  Yabu, Masato ,  Nakamura, Kiyomi

IPC分类号： H01H1/02 ,  H01H11/04

CPC分类号： H01H1/0206 ,  H01H11/048 ,  H01H33/6643

摘要： The invention proposes electric contact made of a sintered alloy consisting essentially of chromium, copper and tellurium, wherein the sintered alloy is composed of copper matrix and a chromium phase, and wherein particles of a ternary intermetallic compound consisting of chromium, copper and tellurium are present in grains and at grain boundaries of the copper matrix, and at interfaces between the chromium phase and the copper matrix.
The disclosure also discloses an electrode for a vacuum interrupter, a vacuum interrupter, a vacuum circuit breaker and a vacuum switch.

摘要翻译： 本发明提出了由基本上由铬，铜和碲组成的烧结合金制成的电接触，其中烧结合金由铜基体和铬相组成，其中存在由铬，铜和碲组成的三元金属间化合物的颗粒 在铜基体的晶界和晶界处，以及在铬相和铜基体之间的界面处。 本公开还公开了一种用于真空断路器的电极，真空断路器，真空断路器和真空开关。

公开(公告)号：EP2073331A3

公开(公告)日：2010-11-03

申请号：EP08021392.9

申请日：2008-12-09

申请人： Hitachi Ltd.

发明人： Ozawa, Hiroyuki ,  Tsuchiya, Kenji ,  Kobayashi, Masato ,  Morita, Ayumu

IPC分类号： H02B13/01 ,  H02B13/035 ,  H02G15/064

CPC分类号： H02B13/01 ,  H02B13/0354 ,  H02B13/0358 ,  H02B13/075 ,  H02G15/064

摘要： A vacuum insulated switchgear having a vacuum container, a fixed contact disposed in the vacuum container, a movable contact disposed in the vacuum container capable of being in contact with or out of contact with the fixed contact, a driving mechanism for driving the movable contact in directions to contact with and out of contact with the fixed contact, a resin portion molded around the vacuum container, an insulative bushing for covering a pulled-out portion of a conductor connected to the fixed contact and for extending from the molded resin portion, and a cable head insulating member for covering a conductor of a cable head connected to the conductor at the pulled-out portion and an outer surface of the cable head insulating member being earthed, characterized in that:
an earthed conductive member is embedded at least at a position opposite to an end of the cable head insulating member in the bushing.

公开(公告)号：EP2073331A2

公开(公告)日：2009-06-24

申请号：EP08021392.9

申请日：2008-12-09

申请人： Hitachi Ltd.

发明人： Ozawa, Hiroyuki ,  Tsuchiya, Kenji ,  Kobayashi, Masato ,  Morita, Ayumu

IPC分类号： H02B13/01

CPC分类号： H02B13/01 ,  H02B13/0354 ,  H02B13/0358 ,  H02B13/075 ,  H02G15/064

摘要： A vacuum insulated switchgear having a vacuum container, a fixed contact disposed in the vacuum container, a movable contact disposed in the vacuum container capable of being in contact with or out of contact with the fixed contact, a driving mechanism for driving the movable contact in directions to contact with and out of contact with the fixed contact, a resin portion molded around the vacuum container, an insulative bushing for covering a pulled-out portion of a conductor connected to the fixed contact and for extending from the molded resin portion, and a cable head insulating member for covering a conductor of a cable head connected to the conductor at the pulled-out portion and an outer surface of the cable head insulating member being earthed, characterized in that:
an earthed conductive member is embedded at least at a position opposite to an end of the cable head insulating member in the bushing.

摘要翻译： 一种具有真空容器的真空绝缘开关装置，设置在真空容器内的固定触点，设置在真空容器内的可与触点接触或不接触的可动触头，用于驱动可动触点的驱动机构 与固定触点接触和脱离接触的方向，在真空容器周围模制的树脂部分，用于覆盖连接到固定触点的导体的拉出部分并用于从模制树脂部分延伸的绝缘衬套，以及 电缆头绝缘构件，用于覆盖连接到拉出部分处的导体的电缆头的导体和接地的电缆头绝缘构件的外表面，其特征在于：接地的导电构件至少嵌入 与衬套中的电缆头绝缘构件的端部相对的位置。