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1.发明公开公开(公告)号：US20240274377A1
公开(公告)日：2024-08-15
申请号：US18681083
申请日：2022-07-01
IPC分类号： H01H9/00
CPC分类号： H01H9/0027 , H01H9/0011 , H01H9/0044
摘要： A diverter switch, which is for an on-load tap-changer, includes a housing; and a carrier. The carrier has elements configured to carry out a diverter switch operation. The carrier and the elements are at least partly encapsulated in the housing.
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公开(公告)号：US12042977B2
公开(公告)日：2024-07-23
申请号：US17620126
申请日：2020-05-26
发明人： Matthias Bruland
IPC分类号： B29C53/00 , B29C53/56 , B29C70/32 , H01B17/56 , H01B19/00 , B29K63/00 , B29K309/08 , B29L31/34
CPC分类号： B29C53/562 , B29C70/32 , H01B17/56 , H01B19/00 , B29K2063/00 , B29K2309/08 , B29L2031/3412
摘要： A method produces a hollow electrical insulator. The method includes: winding first wound layers of a first fiber element onto a core; and winding second wound layers of a second fiber element onto an end region of the core. The first wound layers have turns of the first fiber element which enclose a first winding angle with a main direction of extension of the core. The second wound layers have turns of the second fiber element which enclose a second winding angle with the main direction of extension of the core which is larger than the first winding angle. An inner region of the core remains free of second wound layers.
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公开(公告)号：US20240153675A1
公开(公告)日：2024-05-09
申请号：US18549352
申请日：2022-03-03
发明人： Matthias Bruland
CPC分类号： H01B17/14 , H01B17/325
摘要： An insulator for high-voltage applications has a rotationally symmetrical hollow tube made from fiberglass-reinforced epoxy resin; a silicone shielding attached to a periphery of the hollow tube; a base flange at a lower end of the hollow tube; a retainer, which is configured to retain an electrical operator, at an upper end of the hollow tube; and a plug, which is arranged inside the hollow tube and closes the front side of the upper end of the hollow tube and seals the hollow tube from the outside. The retainer has a rotationally symmetrical connection region. The insulator further has at the upper end of the hollow tube, a radially circumferential joining region which has no silicone shielding. The retainer is connectable to the insulator in such a way that the connection region of the retainer surrounds the joining region of the insulator in a form-fitting fashion.
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公开(公告)号：US20240062970A1
公开(公告)日：2024-02-22
申请号：US18260788
申请日：2021-12-21
发明人： Christian Hammer , Dominik Plitzko
IPC分类号： H01H9/00
CPC分类号： H01H9/0027 , H01H2009/0061
摘要： A switch assembly has an on-load tap changer and a drive system for the on-load tap changer. The drive system has: a stepper motor having a motor shaft, the motor shaft being connected to and configured to actuate the on-load tap changer; a feedback system, which is configured: to determine at least one value for a position of the motor shaft; and to generate a feedback signal based on the at least one value; and a control device, which is configured to influence the operation of the switch assembly depending on the feedback signal.
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公开(公告)号：US20240029967A1
公开(公告)日：2024-01-25
申请号：US18002489
申请日：2021-06-15
发明人： Klaus Hoepfl , Silke Wrede , Markus Zintl , Anniyappan Palani
IPC分类号： H01H9/00 , H01H33/662
CPC分类号： H01H9/0038 , H01H33/66261 , H01H2033/66276
摘要： A vacuum interrupter arrangement may be used in a tap changer. The vacuum interrupter arrangement has a vacuum interrupter; a metal shield configured to shield against external magnetic fields, the metal shield having a hollow cylindrical design and being arranged around at least a part of a cylindrical outer surface of the vacuum interrupter; and a holder, which is arranged on the outside of the metal shield and the vacuum interrupter, and which surrounds the metal shield and the vacuum interrupter at least partially coaxially. The holder has a plurality of holding elements which hold the metal shield in position relative to the vacuum interrupter.
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公开(公告)号：US20240029965A1
公开(公告)日：2024-01-25
申请号：US18042302
申请日：2021-07-21
CPC分类号： H01H9/0016 , H01H9/0027 , H01F29/04 , H01F29/025
摘要： An on-load tap-changer provides uninterrupted diverter switch operation between different winding taps of a tap-changing transformer. The on-load tap-changer includes: a flange module; and a union nut. The on-load tap-changer is configured to be fastened to the tap-changing transformer by the union nut and the flange module.
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7.发明公开公开(公告)号：US20230253788A1
公开(公告)日：2023-08-10
申请号：US18002866
申请日：2021-05-26
发明人： Irina Lupandina , Michael Schrammel
IPC分类号： H02J3/00
CPC分类号： H02J3/003 , H02J3/001 , H02J2203/20
摘要： A switching state of a switching arrangement of an electrical distribution arrangement is optimized. In each switching state, an outgoing circuit of the distribution arrangement is connected to a supply by the switching arrangement via a component. Each state differs from others in that the outgoing circuit is connected to the supply via another component. The switching arrangement has enough switching states that each outgoing circuit is connectable to a supply via two different components. An outgoing circuit is presented based on: operating parameters of the components, a switching state, outgoing loads; environmental parameters of the electrical components, forecasted environmental parameters, and forecasted outgoing loads. Forecasted operating parameters are simulated to compare future operating parameters with limit values. Based on likely exceeding limit values in the future, an alternative switching state is suggested such that limit values are not exceeded.
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8.发明公开公开(公告)号：US20230194629A1
公开(公告)日：2023-06-22
申请号：US18003351
申请日：2021-07-02
发明人： Alexander Alber
IPC分类号： G01R31/62
CPC分类号： G01R31/62
摘要： A device for determining an error probability value for a transformer component, including a signal input interface, a processor unit, and a storage unit, wherein the signal input interface is configured for direct or indirect coupling to a measurement system for a power transformer, the measurement system having multiple sensors that are each designed to record a physical and/or chemical property of the power transformer, the power transformer having multiple transformer components, and each sensor being coupled to at least one of the transformer components of the power transformer by way of a respective related direct or indirect connection, wherein the physical and/or chemical property of the power transformer recorded by the respective sensor is influenced by at least one of the transformer components, wherein the signal input interface is configured to receive a status signal of the measurement system, the status signal representing multiple, different status variables.
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9.发明公开公开(公告)号：US20230160943A1
公开(公告)日：2023-05-25
申请号：US17913170
申请日：2021-02-24
发明人： Erik Winkelmann , Thomas Steiner , Peter Birkholz
CPC分类号： G01R31/14 , G01R31/083
摘要： A system includes: a sensor configured to detect electrical signals of a cable section for transmitting electrical energy; a processor; a data memory; and a signal interface. The data memory stores a set of curves with an associated distance to the sensor and representing a pulse response of an electrical pulse predetermined by a cable model as a result of a modeled partial discharge at the associate distance. The sensor detects a discharge signal caused by an actual partial discharge on the cable section, and transmits a measurement signal to the processor. Based on the first measurement signal, the processor determines which among the curves in the set correlates best with the first discharge signal, as the first discharge curve. The processor determines a sensor distance between the actual partial discharge and the sensor based on the distance associated with the discharge curve. The signal interface transmits the sensor distance.
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公开(公告)号：US20230141822A1
公开(公告)日：2023-05-11
申请号：US18003372
申请日：2021-06-28
发明人： Christian HAMMER
IPC分类号： H01H9/00
CPC分类号： H01H9/0016 , H01H9/0027 , H01H2009/0061
摘要： An on-load tap-changer for switching, without interruption, between winding taps of a tap-changing transformer, including a diverter switch for performing a switch-over from a first to a second fixed contact, a selector for preselecting, without power, the first and second fixed contact, and a first controller, wherein the diverter switch has a plurality of semiconductor and mechanical switching elements, the selector has a first and second selector arm, which are actuatable independently of one another and can contact each of the fixed contacts, and the first controller is configured to trigger a switch command and to actuate the first and second selector arm and the plurality of mechanical switching elements by a motor drive, wherein the on-load tap changer includes a second controller to actuate the plurality of semiconductor switching elements, and wherein during the switch-over the first controller actuates the motor drive depending on the second controller.
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