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公开(公告)号：EP4197013A1
公开(公告)日：2023-06-21
申请号：EP21748590.3
申请日：2021-07-21
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公开(公告)号：EP4046177A1
公开(公告)日：2022-08-24
申请号：EP20785740.0
申请日：2020-10-01
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公开(公告)号：EP3324504B1
公开(公告)日：2021-04-07
申请号：EP16200009.5
申请日：2016-11-22
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公开(公告)号：EP2989646B1
公开(公告)日：2020-03-25
申请号：EP14731577.4
申请日：2014-06-12
发明人： SUKOSD, Zsolt , GRIEPENTROG, Gerd , HANDT, Karsten
IPC分类号： H01F29/04
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公开(公告)号：EP2761633B1
公开(公告)日：2019-07-03
申请号：EP12835253.1
申请日：2012-09-21
申请人： Intel Corporation
发明人： FENG, Lei , CHU, Chi D. , SADHWANI, Ram
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公开(公告)号：EP3242304B1
公开(公告)日：2019-03-06
申请号：EP15874610.7
申请日：2015-01-28
申请人： Diao, Junqi
发明人： Diao, Junqi
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公开(公告)号：EP3171373A4
公开(公告)日：2018-04-11
申请号：EP15821798
申请日：2015-06-30
申请人： TOSHIBA KK
发明人： EGUCHI NAOKI , ISHIKAWA TAKU , MIYAMOTO YASUSHI
CPC分类号： H01F29/04 , H01H9/0016 , H01H9/0027 , H01H9/0038 , H01H9/0044 , H01H9/08
摘要： An on-load tap changer which ensures the compatibility of an oil tank when an interchange from the in-oil arc switching scheme to the vacuum-valve scheme is made, improves a retrofit function, achieves a space saving by simplifying components, and facilitates a construction of an actuation mechanism is provided. A change-over switch 46 for the vacuum-valve scheme is placed in an oil tank 50 filled with an insulation oil 56. The change-over switch 46 is provided with a main contact contained in vacuum valves 2, 3, 5, 6, and current-carrying conductors 7, 8 to reduce a current flowing in the main contact, and parallel link mechanisms actuating the current-carrying conductors 7, 8 in a parallel manner. A stationary contact 47 capable of contacting with and separating from the current-carrying conductors 7, 8 is attached to the internal wall surface of the oil tank 50. The change-over switch 46 is freely attachable to and detachable from the oil tank 50 with the stationary contact 47 being attached to the oil tank 50.
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公开(公告)号：EP3288053A1
公开(公告)日：2018-02-28
申请号：EP16725877.1
申请日：2016-04-14
摘要： The present invention relates to an on-load tap changer device, which allows the automatic regulation of voltage in the secondary winding (28) of high-voltage electrical equipment (26, 65) by selecting the number of turns of the primary winding (27) by means of an on-load tap changer device (1, 40), having reduced volume and weight, obtaining the highest possible number of transformation ratios without changing the constructive arrangement of the high-voltage electrical equipment (26, 65).
摘要翻译： 本发明涉及一种有载分接开关装置，其允许通过选择初级绕组（27,65）的匝数来自动调节高压电气设备（26,65）的次级绕组（28）中的电压 ）借助于具有减小的体积和重量的有载分接开关装置（1,40）在不改变高压电气设备（26,65）的结构性布置的情况下获得最高可能数量的变压比。
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89.发明公开
公开(公告)号：EP3262664A1
公开(公告)日：2018-01-03
申请号：EP16704640.8
申请日：2016-02-16
发明人： SAVELIEV, Anatoli , STERZ, Oliver
IPC分类号： H01F29/04
CPC分类号： H01F29/04 , H01S5/042 , H01S5/06213 , H01S5/06832 , H01S5/06835 , H04B10/508 , H04B10/58
摘要： The invention relates to a method for changing the active number of turns of a control winding (12) in an electric system (10). The control winding is coupled to an AC voltage network for a specified period duration T, is designed for a specified nominal current strength IN, and comprises a first and a second tap (121, 122). The control winding is switched from a first continuous current state, in which a load current flows from the first tap to a load discharge line (15) via a first main path and the second tap is separated from the load discharge line, to a second continuous current state, in which the load current flows from the second tap to the load discharge line via a second main path and the first tap is separated from the load discharge line, according to a specified switch sequence plan. The switch sequence plan specifies that starting from the first continuous current state, the first tap is connected or remains connected to the load discharge line via a first transition path, and the first main path is separated in a switch step a; in a switch step b, the second tap is connected to the load discharge line via a second transition path such that a circuit current iK flows through the transition paths on the basis of the stage voltage between the taps; in a switch step c, the first tap is separated from the load discharge line; and in a switch step d, the second tap is connected to the load discharge line via the second main path; wherein at at least one specified test time tT between switch steps a and c, a test is carried out to determine whether the first main path is separated; a current strength IL of the load current is ascertained; and the test time tT depends on the load current strength IL.
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公开(公告)号：EP3242304A4
公开(公告)日：2017-12-27
申请号：EP15874610
申请日：2015-01-28
申请人： DIAO JUNQI
发明人： DIAO JUNQI
CPC分类号： H01H9/0016 , H01F7/0242 , H01F29/04 , H01H3/28 , H01H9/0027 , H01H36/0073
摘要： A permanent magnet drive on-load tap-changing switch comprising a changing switch circuit and a high-speed mechanism. The changing switch circuit comprises an odd-numbered tap-changing switch circuit and an even-numbered tap-changing switch circuit that are structurally identical. The high-speed mechanism comprises a traveling mechanism (2) used for bearing a moving contactor (7), a moving magnet group connected with the traveling mechanism (2), and a fixed magnet group producing an attracting force/repelling force with respect to the moving magnet group. The moving magnet group comprises a first permanent magnet (1) and a second permanent magnet (3) connected together at homonymic magnetic poles. An exposed homonymic magnetic pole of the first permanent magnet (1) and that of the second permanent magnet (3) face directly the fixed magnet group. The fixed magnet group comprises a rotating permanent magnet (5) that rotates to change a force applied to the moving magnet group and thereby allowing the moving contactors (7) to either come into contact with or be separated from working contactors (K1 and K2) and dual-contact synchronous transition contactors (k1, k1', k2, and k2'). The on-load tap-changing switch is structurally simple and highly reliable, utilizes, on the basis that like poles attract each other whereas unlike poles repel each other, the permanent magnets as the high-speed mechanism to drive the moving contactors to complete changing with the working contactors and transition contactors thereof, extends the service life of the on-load tap-changing switch, and has value for widespread use.
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