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公开(公告)号：US20220406534A1
公开(公告)日：2022-12-22
申请号：US17775317
申请日：2020-09-17
IPC分类号： H01H9/00
摘要： An on-load tap changer uninterruptedly switches between winding taps of a tap-changing transformer. The on-load tap changer includes: at least one selector configured to preselect, in a powerless manner, a selected winding tap of the winding taps; at least one diverter switch configured to actually switch loads from a previous winding tap to a preselected winding tap of the winding taps; at least one toothed gearing comprising a first gearwheel and a second gearwheel, the first gearwheel being assigned to the selector, and the second gearwheel being assigned to the diverter switch; and a drive shaft, which is configured to be actuated by a motor drive. The first gearwheel and the second gearwheel are directly interconnected mechanically in such a way that the first gearwheel and the second gearwheel are simultaneously actuatable. The drive shaft is configured to drive either the first gearwheel or the second gearwheel.
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公开(公告)号：US10153074B2
公开(公告)日：2018-12-11
申请号：US15031516
申请日：2014-11-10
发明人： Robert Hiltner , Thomas Schuster , Moritz Bengler
摘要： A support module (10) for polarization resistors of an on-load tap changer comprises:—a supporting region (11) for at least one polarization resistor; —a first joint region (13); —a second joint region (14) which is compatible with the first joint region. A support frame (19) for polarization resistors of an on-load tap changer comprises:—two such support modules which are joined by virtue of the second joint region of the first support module bearing at least partially against the first joint region of the second support module. A fastening element (24) for polarization resistors (22) comprises:—two electrically conductive accommodating sections (25), which each have an accommodating opening (27) for one of the ends (23) of a polarization resistor (22);—an electrically conductive connecting section (26), which connects the two accommodating sections (25) mechanically and electrically to one another;—a first piece (28.1), which comprises the first accommodating section (25.1) and an adjoining first part of the connecting section (26); —a second piece (28.2), which comprises the second accommodating section (25.2) and an adjoining second part of the connecting section (26); wherein:—the first and second parts are in the form of a plug-type connection.
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公开(公告)号：US12087537B2
公开(公告)日：2024-09-10
申请号：US17775317
申请日：2020-09-17
IPC分类号： H01H9/00
CPC分类号： H01H9/0011 , H01H9/0038 , H01H2009/0094
摘要： An on-load tap changer uninterruptedly switches between winding taps of a tap-changing transformer. The on-load tap changer includes: at least one selector configured to preselect, in a powerless manner, a selected winding tap of the winding taps; at least one diverter switch configured to actually switch loads from a previous winding tap to a preselected winding tap of the winding taps; at least one toothed gearing comprising a first gearwheel and a second gearwheel, the first gearwheel being assigned to the selector, and the second gearwheel being assigned to the diverter switch; and a drive shaft, which is configured to be actuated by a motor drive. The first gearwheel and the second gearwheel are directly interconnected mechanically in such a way that the first gearwheel and the second gearwheel are simultaneously actuatable. The drive shaft is configured to drive either the first gearwheel or the second gearwheel.
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公开(公告)号：US11798752B2
公开(公告)日：2023-10-24
申请号：US17775319
申请日：2020-09-24
CPC分类号： H01H9/0027 , H01H1/22
摘要： A selector can be used in an on-load tap changer. The selector includes: a tap selector comprising at least one selector arm; and a change-over selector. The change-over selector is configured to be actuated via at least one of the selector arms of the tap selector.
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公开(公告)号：US20220415587A1
公开(公告)日：2022-12-29
申请号：US17775589
申请日：2020-09-14
IPC分类号： H01H9/00
摘要： An on-load tap changer is for uninterrupted diverter switch operation. The on-load tap changer includes: a first module having a first module shaft; and a second module having a second module shaft. The first module shaft is configured to actuate the first module. The second module shaft is configured to actuate the second module. The first module shaft and the second module shaft are mechanically coupled to one another in such a way that the first module shaft is configured to drive the second module shaft and the second module is configured to be actuated with a time delay with respect to the first module.
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公开(公告)号：US10147563B2
公开(公告)日：2018-12-04
申请号：US15104762
申请日：2015-01-12
发明人： Uwe Kaltenborn , Alfred Bieringer , Christian Hammer , Christian Pircher , Andreas Sachsenhauser , Thomas Schuster
摘要： The invention relates to an on-load tap changer (2) according to the reactor switching principle for uninterrupted load switching between different tap windings of a tapped transformer (1), comprising: —an inductor (3) which is designed as an inductive transition reactance; —the inductor (3) being part of the on-load tap changer (2).
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公开(公告)号：US09941064B2
公开(公告)日：2018-04-10
申请号：US14906331
申请日：2014-08-01
CPC分类号： H01H9/0027 , G05F1/147 , H01F29/02 , H01H9/0011 , H01H9/0016 , H01H9/0038
摘要： In an on-load tap changer (10) for controlling voltage of a tapped transformer (15) it is provided that the tapped transformer (15) has at least one regulatable phase (16) that has a first winding (20) and a second winding (30); the first winding (20) has a regulating winding (21) with even-numbered winding taps (23) and a main winding (22), and the second winding (30) has a regulating winding (31) with odd-numbered winding taps (33) and a main winding (32); the first winding (20) and the second winding (30) having the regulating windings (21, 31) of the even-numbered and of the odd-numbered winding taps (23, 33), are inductively coupled; the on-load tap changer (10) has a selector (40) for the alternating power-free preselection of the even-numbered or odd-numbered winding taps (23, 33) to be switched.
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公开(公告)号：US20220392716A1
公开(公告)日：2022-12-08
申请号：US17775319
申请日：2020-09-24
摘要： A selector (1) for an on-load tap changer, comprising a tap selector (2) with at least one selector arm (21, 22); a change-over selector (4), characterized in that the change-over selector (4) is actuated via at least one of the selector arms (21, 22) of the tap selector (2).
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公开(公告)号：US10211627B2
公开(公告)日：2019-02-19
申请号：US15110119
申请日：2015-02-18
摘要： A network node for a substation or a local network station has a control transformer with a primary side and a secondary side, an input line connected to the primary side, and an output line connected to the secondary side. A protective switch is provided in the input line or in the output line, and a sensor detects an electrical parameter in the input line or in the output line and generate a measurement signal. A controller coupled to the control transformer, to the protective switch, and to the sensor, serves to operate the control transformer in dependence on the measurement signal such that the control transformer has a predetermined transmission ratio and open the protective switch in dependence on the measurement signal as soon as the control transformer has the predetermined transmission ratio.
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10.发明授权公开(公告)号：US09640340B2
公开(公告)日：2017-05-02
申请号：US14898498
申请日：2014-06-24
CPC分类号： H01H9/0027 , H01H9/0016 , H01H2009/0022
摘要： A load selector for tapped transformers has an oil tank and a preselector having a first preselector contact and a second preselector contact for each phase to be switched by the load selector. The first preselector contact and the second preselector contact are mounted on a wall of the oil tank and extending through the wall of the oil tank. A first zero contact and a second zero contact separate from the first zero contact are provided for each phase to be switched by the preselector. The first zero contact and the second zero contact are each mounted on the wall of the oil tank and extend through the wall of the oil tank.
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