公开(公告)号：US20190017521A1

公开(公告)日：2019-01-17

申请号：US16062227

申请日：2016-11-30

申请人： ABB Schweiz AG

发明人： Thomas BRENNEIS ,  Matthias E. SCHMIDT ,  Thomas KLOSE ,  Niko ROBENS

IPC分类号： F15B11/00 ,  F15B13/043 ,  H01H33/34

摘要： A valve arrangement for hydraulic control of a piston-cylinder of a power switch (7) contains a main stage having a first main valve (31) and a second main valve (32), and a pilot stage having at least one pilot valve (3, 4). In order to permit the first main valve (31) to remain securely in the opened state, even in the event of pressure oscillations, the main valve has a total of four control surfaces, of which a second (F5) and a third (F6) control surface operate in a closing manner and a fourth control surface (F7) operates in an opening manner. For this purpose, the second control surface (F5) is connected to the high-pressure line (P), the third control surface (F6) is connected to the low-pressure line (T), and the fourth control surface (F7) is connected to the output-side valve connection (35) of the first main valve (31). The size ratio of the opening control surfaces (F4, F7) to the closing control surfaces (F5, F6) is selected such that in the open condition of the first main valve (31) an opening resulting force is maintained.

公开(公告)号：US09920777B2

公开(公告)日：2018-03-20

申请号：US14171462

申请日：2014-02-03

申请人： ABB Technology AG

发明人： Thomas Brenneis ,  Matthias Schmidt ,  Henrik Lohrberg ,  Frank Fiedler ,  Bruno Gehlert ,  Roland Palm

IPC分类号： F15B15/22 ,  H01H3/60 ,  H01H33/34

CPC分类号： F15B15/22 ,  H01H3/605 ,  H01H33/34

摘要： A differential cylinder for a hydromechanical drive for actuating an electrical switch, for example a high-voltage switch, is disclosed which includes a first pressure region for applying a working pressure, a second pressure region, and a piston which is capable of moving in a movement region and which is movable depending on a pressure difference between the first and second pressure region. A damping device is provided which, in the event of a movement of the piston in the direction of the second pressure region, provides damping with respect to the movement of the piston in a section of the movement region, wherein the damping is adjustable.

公开(公告)号：US20180025867A1

公开(公告)日：2018-01-25

申请号：US15552590

申请日：2016-02-10

申请人： HITACHI, LTD.

发明人： Shinji SETO ,  Daisuke EBISAWA ,  Hiroaki HASHIMOTO

IPC分类号： H01H33/34

CPC分类号： H01H33/34 ,  H01H3/3026 ,  H01H33/30 ,  H01H33/302

摘要： A switchgear driving device has a rod coupled to a movable electrode; an operation piston connected to the rod; and an operation cylinder in which an operation piston slides. A main control valve controls the pressure of the hydraulic oil in the operation cylinder. A turning-on pressure accumulation piston slides inside a turning-on pressure accumulation chamber; and a turning-on pressure accumulation spring imparts a driving force to the turning-on pressure accumulation piston to pressurize the hydraulic oil within the turning-on pressure accumulation chamber. A turning-off pressure accumulation piston slides inside a turning-off pressure accumulation chamber. A turning-off pressure accumulation spring imparts a driving force to the turning-off pressure accumulation piston to pressurize the hydraulic oil in the turning-off pressure accumulation chamber. A spring case accommodates the turning-on pressure accumulation spring and the turning-off pressure accumulation spring, wherein the turning-off pressure accumulation spring is arranged inside the turning-on pressure accumulation spring.

公开(公告)号：US07511243B2

公开(公告)日：2009-03-31

申请号：US11629932

申请日：2005-05-13

申请人： Karsten Laskowski ,  Christoph Sorowski

发明人： Karsten Laskowski ,  Christoph Sorowski

IPC分类号： H01H9/40 ,  H01H9/38 ,  H01H3/00 ,  H01H33/02 ,  H01H33/34 ,  H01H33/14 ,  H01H33/12 ,  H01H33/66

CPC分类号： H02B13/035

摘要： A circuit breaker has an interrupter unit, which is disposed within an encapsulating housing, and has a first contact piece and a second contact piece. The contact pieces can move in relation to one another and they are arranged axially opposite one another. The device further has a first current path section for supplying an electrical current to the first contact piece and a second current path section for supplying an electrical current to the second contact piece. The current path sections are part of the interrupter unit, and at least one of the current path sections has a connection contact and can move in relation to a stationary mating contact. The current path section can move by way of a drive device when the encapsulating housing is closed.

摘要翻译： 断路器具有设置在封装壳体内的断续器单元，并具有第一接触件和第二接触片。 接触件可以相对于彼此移动，并且它们彼此轴向地布置。 该装置还具有用于向第一接触片提供电流的第一电流路径部分和用于向第二接触片提供电流的第二电流路径部分。 电流路径部分是断续器单元的一部分，并且至少一个电流通路部分具有连接接触并且可以相对于固定配合触点移动。 当封装壳体关闭时，电流路径部分可以通过驱动装置移动。

公开(公告)号：US20080067153A1

公开(公告)日：2008-03-20

申请号：US11533655

申请日：2006-09-20

申请人： William C. Pollitt ,  John J. Shea ,  Aaron T. Kozar ,  Nathan J. Weister

发明人： William C. Pollitt ,  John J. Shea ,  Aaron T. Kozar ,  Nathan J. Weister

IPC分类号： H01H33/34

CPC分类号： H01H9/342 ,  H01H2009/365

摘要： An arc baffle for an arc chute assembly of a circuit breaker includes a first baffle member disposed at or about the second end of the arc chute assembly and including a plurality of first venting holes, a second baffle member including a plurality of second venting holes and being coupled to and disposed opposite from the first baffle member, and a filter assembly disposed at or about the second baffle member and including a number of filter elements. The first and second venting holes of the first and second baffle members are offset to induce turbulent flow of ionized gases being discharged from the arc chute assembly. The filter elements of the filter assembly filter the turbulent flow. An arc chute assembly and an electrical switching apparatus are also disclosed.

摘要翻译： 用于断路器的灭弧室组件的弧形挡板包括设置在电弧槽组件的第二端处或周围的第一挡板部件，并且包括多个第一通气孔，第二挡板部件，其包括多个第二通气孔和 耦合到第一挡板构件并与第一挡板构件相对设置;以及过滤器组件，设置在第二挡板构件处或周围，并且包括多个过滤元件。 第一和第二挡板构件的第一和第二排气孔被偏移以引起从电弧槽组件排出的电离气体的湍流。 过滤器组件的过滤元件过滤湍流。 还公开了一种灭弧室组件和电气开关装置。

公开(公告)号：US06875941B2

公开(公告)日：2005-04-05

申请号：US10747268

申请日：2003-12-30

申请人： Hideo Kawamoto ,  Daisuke Ebisawa ,  Kenichi Okubo

发明人： Hideo Kawamoto ,  Daisuke Ebisawa ,  Kenichi Okubo

IPC分类号： F15B15/18 ,  H01H33/30 ,  H01H33/34 ,  H01H35/38

CPC分类号： H01H33/34 ,  H01H33/304

摘要： Disclosed is a hydraulic operating apparatus for switch with which it is possible to constantly obtain a stable interrupting performance at the time of high-speed successive operations. Closing and interrupting pressure accumulators comprise closing and interrupting pressure accumulation pistons, and closing and interrupting pressure accumulation springs for biasing the closing and interrupting pressure accumulation pistons in pressure accumulation directions, respectively. The closing and interrupting pressure accumulation springs exert, on the closing and interrupting pressure accumulation pistons, forces corresponding to received pressures acting on the closing and interrupting pressure accumulation pistons from closing and interrupting pressure accumulation chambers in a steady state. The closing pressure accumulator and the interrupting pressure accumulator are independently constituted for closing and for interrupting, respectively.

公开(公告)号：US20050006349A1

公开(公告)日：2005-01-13

申请号：US10747268

申请日：2003-12-30

申请人： Hideo Kawamoto ,  Daisuke Ebisawa ,  Kenichi Okubo

发明人： Hideo Kawamoto ,  Daisuke Ebisawa ,  Kenichi Okubo

IPC分类号： F15B15/18 ,  H01H33/30 ,  H01H33/34 ,  H01H33/75

CPC分类号： H01H33/34 ,  H01H33/304

摘要： Disclosed is a hydraulic operating apparatus for switch with which it is possible to constantly obtain a stable interrupting performance at the time of high-speed successive operations. Closing and interrupting pressure accumulators comprise closing and interrupting pressure accumulation pistons, and closing and interrupting pressure accumulation springs for biasing the closing and interrupting pressure accumulation pistons in pressure accumulation directions, respectively. The closing and interrupting pressure accumulation springs exert, on the closing and interrupting pressure accumulation pistons, forces corresponding to received pressures acting on the closing and interrupting pressure accumulation pistons from closing and interrupting pressure accumulation chambers in a steady state. The closing pressure accumulator and the interrupting pressure accumulator are independently constituted for closing and for interrupting, respectively.

摘要翻译： 公开了一种用于开关的液压操作装置，可以在高速连续操作时持续获得稳定的中断性能。 关闭和中断压力蓄能器包括关闭和中断压力累积活塞，以及关闭和中断压力累积弹簧，用于分别在压力累积方向上偏置关闭和中断压力累积活塞。 关闭和中断压力累积弹簧在关闭和中断压力累积活塞上施加对应于作用在关闭和中断压力累积活塞上的接收压力的力，从而在稳定状态下关闭和中断压力积聚室。 关闭压力蓄能器和中断蓄能器分别独立地构成用于闭合和中断。

公开(公告)号：US5367134A

公开(公告)日：1994-11-22

申请号：US46997

申请日：1993-04-16

申请人： Toshiaki Yoshizumi ,  Mikio Hidaka ,  Yoshiki Hirano

发明人： Toshiaki Yoshizumi ,  Mikio Hidaka ,  Yoshiki Hirano

IPC分类号： H01H33/12 ,  H01H33/16 ,  H01H33/34 ,  H01H33/42 ,  H01H33/70 ,  H01H33/52

CPC分类号： H01H33/34 ,  H01H33/16

摘要： In a closing operation of a circuit breaker with resistor contact, a resister contact is closed prior to closing of a main contact by the same first hydraulic operation system. In opening operation, the resistor contact is driven by a second hydraulic operation system used to close the main contact after operating the main contact by the first hydraulic operation system. Opening timing of the resistor contact is controlled by a mechanical interlock mechanism or hydraulic control circuit.

摘要翻译： 在具有电阻接触的断路器的闭合操作中，在通过相同的第一液压操作系统关闭主触头之前，电阻触点被闭合。 在打开操作中，电阻接触由第二液压操作系统驱动，用于在通过第一液压操作系统操作主触点之后关闭主触点。 电阻触点的开启时间由机械互锁机构或液压控制电路控制。

公开(公告)号：US4730092A

公开(公告)日：1988-03-08

申请号：US940845

申请日：1986-12-12

申请人： Horst Eggert ,  Wolfgang Jacobsen

发明人： Horst Eggert ,  Wolfgang Jacobsen

IPC分类号： H01H3/24 ,  F15B1/033 ,  H01H33/02 ,  H01H33/34 ,  H01H35/38 ,  H01H33/88

CPC分类号： H01H33/34 ,  F15B1/033 ,  H01H2033/306 ,  H01H33/022

摘要： In a hydraulic driving device for an electric pressurized-gas switch, the piston-cylinder systems are responsive to pressure from a hydropneumatic pressure accumulator. The driving device is equipped with a hydraulic pump which feeds several pressure accumulators and is controlled by pressure monitors, and with a gas monitoring device for the pressure monitors. For solving the problem of carrying out indirect gas monitoring while feeding several pressure accumulators by one hydraulic pump instead of direct gas monitoring, there is provided at least one threshold switch for measuring the feed pressure of the hydraulic pump as part of the gas monitoring device. By feeding the pressure accumulators which takes place sequentially in time and is controlled on the one hand by the gas monitoring device and by the pressure monitors on the other hand, it is possible to establish a correlation specific as to the pressure accumulator of the gas loss signal delivered by the threshold switch.

摘要翻译： 在用于电加压气体开关的液压驱动装置中，活塞缸系统响应于来自液压气动蓄压器的压力。 驱动装置配备有一个液压泵，其供给多个压力蓄能器并由压力监视器控制，并具有用于压力监视器的气体监测装置。 为了解决在通过一个液压泵而不是直接气体监测向多个压力蓄能器供给时进行间接气体监测的问题，至少提供了一个用于测量作为气体监测装置的一部分的液压泵的进料压力的阈值开关。 通过供给按时间进行的压力蓄能器，一方面由气体监测装置和压力监视器进行控制，另一方面，可以建立与储气器的气体损失相关的相关性 信号由阈值开关传送。

公开(公告)号：US4669265A

公开(公告)日：1987-06-02

申请号：US614792

申请日：1984-05-29

申请人： Claude A. Gratzmuller

发明人： Claude A. Gratzmuller

IPC分类号： H01H33/34 ,  F16D31/02

CPC分类号： H01H33/34

摘要： The times of response of a circuit-breaker control system to breaker-closing orders are reduced by means of a unit comprising a pressure reducer and a low-capacity compensating hydraulic accumulator, the unit being connected to the portions of the hydraulic control circuit which are alternately pressurized and depressurized. The hydraulic accumulator resupplies oil at reduced pressure to the portions of circuit in which there is a lack of oil or which are filled with emulsified oil as a result of depressurization operations.

摘要翻译： 断路器控制系统对断路器闭合指令的响应时间通过包括减压器和低容量补偿液压蓄能器的单元减少，该单元连接到液压控制回路的部分 交替加压和减压。 液压蓄能器将减压油补充到由于减压操作而导致油不足或充满乳化油的回路部分。