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公开(公告)号：EP4405992A1
公开(公告)日：2024-07-31
申请号：EP22797655.2
申请日：2022-09-19
发明人： ASKAN, Kenan
IPC分类号： H01H9/54
CPC分类号： H01H9/541 , H01H9/548 , H01H33/596 , H01H9/106 , H01H9/10 , H01H33/166
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公开(公告)号：EP4367698A1
公开(公告)日：2024-05-15
申请号：EP22747287.5
申请日：2022-07-03
发明人： GROTE, Tobias , HEUER, Lutz , SCHÜRGENS, Detlev
CPC分类号： H01H33/596 , H01H9/548 , H02H7/268 , H02H3/087 , H02H3/33
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公开(公告)号：EP3355431B1
公开(公告)日：2024-05-08
申请号：EP16847985.5
申请日：2016-08-31
CPC分类号： H02H3/087 , H01H33/596 , H02H3/021 , H02H3/06 , H01H2009/54320130101
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公开(公告)号：EP3413330A1
公开(公告)日：2018-12-12
申请号：EP16889311.3
申请日：2016-02-05
IPC分类号： H01H33/59
CPC分类号： H01H33/596 , H01H33/143 , H02H7/268
摘要： A direct current circuit breaker (10) used in a self-commutated direct current power transmission system includes a high-speed circuit breaker (20) and a low-speed circuit breaker (30) connected in series. The high-speed circuit breaker (20) includes a high-speed circuit breaker interruption unit (21) to interrupt a DC current flowing through a direct current line (1) when a fault has occurred on the direct current line (1), and a current limiting element (22) connected in parallel with the high-speed circuit breaker interruption unit (21). The low-speed circuit breaker (30) includes a low-speed circuit breaker interruption unit (31) to interrupt a DC current flowing through the direct current line (1) when a fault has occurred on the direct current line (1). A time required for the high-speed circuit breaker interruption unit (21) to interrupt the DC current is shorter than a time required for the low-speed circuit breaker interruption unit (31) to interrupt the DC current. The low-speed circuit breaker interruption unit (31) completes interruption of the DC current before a voltage applied to the current limiting element (22) becomes lower than a minimum voltage allowable for the system.
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公开(公告)号：EP3403271A1
公开(公告)日：2018-11-21
申请号：EP17702822.2
申请日：2017-01-27
CPC分类号： H01H33/596 , H01H9/542
摘要： The invention relates to a DC voltage switch (10) having a first and a second node for serial incorporation in a pole of a DC voltage network (1) and a third node for connection to the other pole of the DC voltage network (1), further comprising a mechanical switch (11) arranged between the first and second node, at least one pulsed current module (20, 41, 42) arranged between the first and the second node, parallel to the mechanical switch, wherein the pulsed current module has three module nodes (201, 202, 203) and the first module node is connected to the first node and the second module node is connected to the second node and the third module node is connected to the third module node, comprises four semiconductor switches (21-24) which are connected as a bridge made of two series of two each of the semiconductor switches, wherein the potential points between the semiconductor switches of the two series correspond to the first and the second module node, and the outer ends of the two series of two each of the semiconductor switches are connected in pairs to form a fourth and fifth module node, comprises a pulsed current capacitor (25), which is connected in parallel with the two series of two each of the semiconductor switches, comprises a switchable semiconductor element (27) between the fifth and third module node.
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公开(公告)号：EP3355334A1
公开(公告)日：2018-08-01
申请号：EP18152559.3
申请日：2018-01-19
发明人： FASANO, Michael
CPC分类号： H01H51/08 , H01H5/08 , H01H9/34 , H01H33/596 , H01H47/226 , H01H50/041 , H01H50/20 , H01H50/56 , H01H50/64 , H01H50/643 , H01H50/68 , H01H51/10 , H01H51/12 , H01H51/14 , H01H51/29 , H01H2050/025 , H01H2051/2218
摘要： A latching relay (10) includes a first coil (12), a second coil (14) and a common plunger (16) operatively connected between the first and second coils such that activation of the first coil moves the plunger to a first position and activation of the second coil moves the plunger to a second position. The latching relay also includes a limit switch (24) having a common contact and first and second coil contacts. A position of the common contact is alternately switched between electrical connection to either the first or second coil contact based on a position of the plunger. The first and second coil contacts are electrically connected to the first and second coils, respectively such that when electrical power is applied to the common contact, the electrical power is alternately applied to either the first coil or the second coil depending on the position of the common contact.
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公开(公告)号：EP3200213A4
公开(公告)日：2018-06-13
申请号：EP15844233
申请日：2015-06-05
IPC分类号： H01H33/59
CPC分类号： H02H3/087 , H01H9/54 , H01H33/59 , H01H33/596 , H01H33/6661 , H01H77/02
摘要： A DC circuit breaker includes: a mechanical switch (2) provided on an electrical path (1) through which a direct current flows; and a semiconductor switch (20) connected in parallel with the mechanical switch (2). The mechanical switch (2) includes a gas disconnector (3) and a vacuum circuit breaker (4) connected in series. Normally, the direct current flows through the mechanical switch (2). When interrupting the direct current, the vacuum circuit breaker (4) is made nonconductive to allow the direct current to be commutated to the semiconductor switch (20), and subsequently the gas disconnector (3) and the semiconductor switch (20) are made nonconductive. A vacuum circuit breaker (4) having a low withstand voltage can be used.
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公开(公告)号：EP3206217A4
公开(公告)日：2018-04-04
申请号：EP15848570
申请日：2015-06-10
发明人： KA SHIKEN , ITO HIROKI , KIKUCHI KUNIO , MIYASHITA MAKOTO , TAHATA KAZUYORI , TOKOYODA SHO , KAMEI KENJI
CPC分类号： H01H9/54 , H01F27/24 , H01F38/40 , H01H9/542 , H01H9/56 , H01H33/596 , H01H33/66 , H01H71/24 , H01H89/00 , H01H2009/543
摘要： A direct-current circuit includes: a breaker (2) that is inserted into the direct-current line (1) and becomes a path for direct current when in a steady state; a resonance circuit (4) connected in parallel with the breaker (2) and superimposing resonance current on the direct current; a disconnector (3a) connected at one end to a first connection point of the breaker (2) and the resonance circuit (4) and forming a path for the direct current together with the breaker (2); and a disconnector (3b) connected at one end to a second connection point of the breaker (2) and the resonance circuit (4) and forming a path for the direct current together with the breaker (2). The resonance circuit (4) includes a series circuit that includes a capacitor (5) and a reactor (6) and generates the resonance current, a charging resistor (9) for charging the capacitor (5) with a direct-current potential of the direct-current line (1), a high-speed switch (7) connected in series with the series circuit on the capacitor (5) side and superimposing the resonance current on the direct current, and an arrester (8) connected in parallel with the capacitor (5) and the high-speed switch (7).
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9.发明公开
公开(公告)号：EP3131166A4
公开(公告)日：2017-12-06
申请号：EP14888645
申请日：2014-12-30
申请人： STATE GRID CORP OF CHINA (SGCC) , STATE GRID SMART GRID RES INST , NORTH CHINA GRID COMPANY LTD
发明人： ZHOU WANDI , WEI XIAOGUANG , GAO CHONG , HE ZHIYUAN , ZHANG SHENG
CPC分类号： H02H3/087 , H01H33/596
摘要： A passive high-voltage direct-current circuit breaker and an implementation method therefor. The high-voltage direct-current circuit breaker is connected in a direct-current system in series, and comprises an energy absorption branch, a main branch and a current transfer branch which are connected in parallel, wherein the current transfer branch comprises first current transfer branches (T1, T2) and second current transfer branches(T3, T4); the energy absorption branch is composed of a nonlinear resistor (MOV); and the main branch comprises at least two groups of high-speed mechanical switches (Kl, K2) and at least two groups of full controlled device modules which are connected in series. Since the circuit has a simple topology structure, is simple and convenient to control, and is flexible to apply, the energy required by injecting a current into a capacitor can be obtained from a system without configuring an auxiliary power source, thereby improving the reliability of an apparatus. The used power electronic devices are mainly half controlled thyristors, so that the series connection technology is mature, the capability for current segmentation is strong, the level of withstand voltage is high, the expansion capability is strong, and the costs of devices are low.
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公开(公告)号：EP3210226A1
公开(公告)日：2017-08-30
申请号：EP15756858.5
申请日：2015-08-12
CPC分类号： H01H9/30 , H01H9/54 , H01H9/542 , H01H33/596 , H01H2009/544 , H01H2009/546 , H02H3/20
摘要： The invention relates to a disconnecting device (1) for interrupting a direct current between a direct current source (2) and an electric apparatus (3), comprising a current-conducting mechanical switch (5), a power electronics unit (6) connected thereto, and an energy store (C9) which is charged by an arcing voltage generated on the switch (5) by an arc (LB) as the switch is being disconnected (5); a pulse generator (7) that is connected to the energy store (6) triggers at least one semiconductor switch (T1, T2) of the power electronics unit (6) in such a way that the power electronics unit (6) short-circuits the switch (5) and the arc (LB) is extinguished.
摘要翻译： 一种用于中断直流电源和电气设备之间的直流电的断路装置，该断路装置具有电流导通的机械开关，与其连接的电力电子单元以及储能器，储能器由开关上产生的电弧电压充电， 因为交换机正在断开连接。 连接到能量存储器的脉冲发生器触发功率电子单元的至少一个半导体开关，使得功率电子单元使开关短路并且电弧熄灭。
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