CN102473541A - 分接开关 - Google Patents
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- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/18—Floors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16B5/12—Fastening strips or bars to sheets or plates, e.g. rubber strips, decorative strips for motor vehicles, by means of clips
- F16B5/123—Auxiliary fasteners specially designed for this purpose
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16B5/12—Fastening strips or bars to sheets or plates, e.g. rubber strips, decorative strips for motor vehicles, by means of clips
- F16B5/128—Fastening strips or bars to sheets or plates, e.g. rubber strips, decorative strips for motor vehicles, by means of clips a strip with a C-or U-shaped cross section being fastened to a plate such that the fastening means remain invisible, e.g. the fastening being completely enclosed by the strip
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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- H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
- H02P13/06—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changing; by rearranging interconnections of windings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C2001/009—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like comprising decompression panels or valves for pressure equalisation in fuselages or floors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/06—Releasable fastening devices with snap-action
- F16B21/07—Releasable fastening devices with snap-action in which the socket has a resilient part
- F16B21/073—Releasable fastening devices with snap-action in which the socket has a resilient part the socket having a resilient part on its inside
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T24/30—Trim molding fastener
- Y10T24/301—Trim molding fastener having externally threaded attaching means
- Y10T24/302—Trim molding fastener having externally threaded attaching means and laterally extending biasing appendage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T24/44—Clasp, clip, support-clamp, or required component thereof
- Y10T24/44017—Clasp, clip, support-clamp, or required component thereof with specific mounting means for attaching to rigid or semirigid supporting structure or structure-to-be-secured
- Y10T24/44026—Clasp, clip, support-clamp, or required component thereof with specific mounting means for attaching to rigid or semirigid supporting structure or structure-to-be-secured for cooperating with aperture in supporting structure or structure-to-be-secured
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45005—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] with third detached member completing interlock [e.g., hook type]
- Y10T24/45099—Resilient element [e.g., snap type]
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Abstract
本发明涉及一种具有两个负载支路的分接开关,负载支路分别具有真空开关管。根据本发明,在负载支路和公共的负载线路之间分别设置有附加的机械开关元件,其具有两个单独的断路器或可以被构造为进行桥接的转换器。
Description
技术领域
本发明涉及根据权利要求1前序部分的一种用于在可调式变压器的线圈抽头之间进行无中断换接的分接开关。
背景技术
DE2021575公开了一种分接开关,其对于每个相具有总共四个真空开关管。在两个负载支路中每一个中分别设置有作为主触点的真空开关管以及作为电阻接点的与转换电阻串联的另一真空开关管。
在从当前的线圈抽头n到预选的新的线圈抽头n+1的无中断的负载换接时,首先断开切断侧的主触点,然后接受侧的电阻接点闭合,从而受到转换电阻限制的补偿电流在两个级n和n+1之间流动。在迄今闭合的切断侧的电阻接点断开之后,接受侧的主触点闭合,从而所有负载电流从新的线圈抽头n+1流向负载线路;换接结束。
代替传统的用于负载换接的机械触点的在这个已知的分接开关以及大量类似的已知实施方式中所使用的真空开关管具有一系列优点:由于触点本身封装在真空中,所以可以实现高的换流容量。此外,封装的严密密封的触点不会导致分接开关中包围其的隔离油由于触点烧损而蒙上烟炱或被弄脏。此外,真空开关管在此能作为非常紧凑的部件使用,其需要很小的占用空间并且还只需要相对小的操纵力。
但是,对于这样的具有真空开关管的已知分接开关用于调节大功率变压器的各种应用情形,要求直至100kV以及甚至更高的高的耐冲击电压强度。
大小主要由可调式变压器以及各个抽头级之间线圈部分的构造决定的这样的不期望的冲击电压一方面是由于雷电击中电网而产生的雷电冲击电压。另一方面,也可能出现由于在要调节的电网中不可预见的接通电冲所导致的操作冲击电压。
在分接开关的耐冲击电压强度不足的情况下,可能导致短暂的级短接或对陶瓷的不期望的击穿或在负载电流不流经的负载支路中相关真空开关管的蒸汽屏蔽,这不仅导致长期损伤,而且一般是不希望的。
DE2357209A和DE2604344A已经公开了为了克服高的冲击电压负荷,在负载支路之间设置保护放电间隙或设置依赖于电压的电阻或甚至设置这二者;但是这些措施在多种情形下是不够的,并且不能消除或不能完全消除有害的冲击电压负荷的影响。
发明内容
本发明的任务在于提供一种耐冲击电压强度高(也被称为a0强度)的开头所述类型的分接开关。
该任务通过具有所给出的权利要求1或2的特征的分接开关来实现。
从属权利要求涉及对于这两种实施方式都有利的扩展方案。
本发明所基于的一般性思想是:通过每个负载支路中附加的机械开关元件实现负载电流不流经的负载支路与负载换接的电流隔离。
由此,可能出现的冲击电压对于负载电流不流经的负载支路中的真空开关管是无害的,这同样地适用于该支路的用作为主触点的真空开关管以及用作为电阻接点的真空开关管。
附图说明
以下将借助于实施例更详细地介绍本发明。
在附图中:
图1示出了根据本发明的分接开关的第一实施方式;
图2示出了这样的分接开关从线圈抽头n无中断地换接到线圈抽头n+1的开关序列;
图3示出了根据本发明的分接开关的第二实施方式;
图4又示出了该分接开关的开关序列;
图5示出了第二实施方式的修改后的电路。
具体实施方式
在图1中示出了根据本发明的分接开关的第一实施方式。包括第一负载支路,用作为主触点的真空开关管MSVa以及与其并联地还有转换电阻Ra和用作为电阻接点的真空开关管TTVa位于第一负载支路中。第二负载支路完全类似地具有真空开关管MSVb以及与其并联地还有另一转换电阻Rb和真空开关管TTVb。该电路到此对应于现有技术。
根据本发明,在两个真空开关管MSVa和TTVa之间的电气连接与负载线路LA之间设置第一机械开关MDCa。完全类似地,在另一负载支路的两个真空开关管MSVb和TTVb之间的电气连接与负载线路之间设置另一机械开关元件MDCb。
这两个机械开关元件MDCa、MDCb被构造为断路开关;它们不用于转换,而是用于激活,即负载电流不流经的负载支路的电流隔离。
图2示出了这样的分接开关在从线圈抽头n换接到线圈抽头n+1上时的开关序列。抽头n所连接的初始情形对应于各个开关元件的在图1中所示的状态。换接以以下步骤进行:
-MDCb闭合
-MSVa断开
-TTVb闭合
-TTVa断开
-MSVb闭合
-MDCa断开;换接结束。
图3示出了根据本发明的分接开关的第二实施方式,其中在第一负载支路的真空开关管MSVa、TTVa的电连接以及第二负载支路的MSVb和TTVb之间设置有进行桥接的转换触头MTF,其根结触点引向负载线路LA。在该实施形式中,机械的触头MTF被构造为使得其可以根据接通位置而将两个负载支路中每一个或者甚至在桥接位置将两个负载支路与负载线路LA连接。因此其在此用于转换。
图4又示出了该实施方式中的开关序列,其中各个开关元件在图3中所示的位置又对应于位置n上的稳定状态。在换接到位置n+1时,以下开关步骤依次进行:
-MTF装置处于桥接位置并且连接两个负载支路
-MSVa断开
-TTVb闭合
-TTVa断开
-MSVb闭合
-MTF离开桥接位置并且只将其他负载支路b与负载线路LA
连接;负载换接结束。
图5示出了本发明的在图3和4中所示的第二实施方式的一种修改后的电路。其中在两个负载支路中设置有附加的常闭主触头MCa或MCb,它们以已知的方式在稳定工作中进行持续电流引导并且对用作为主触点的真空开关管MSVa或MSVb进行减负载。
在本发明的范围中,这样的常闭主触头的附加设置自然在图1和2中所示的本发明第一实施方式中也是可能的。
此外,在本发明的范围中自然还可能的是在负载支路之间附加地设置已知的火花间隙或依赖于电压的电阻。
本发明的两个实施方式基于相同的发明构思,并且同样实现了本发明的任务:它们阻止了高冲击电压一般性地而言对分接开关、具体而言对相关真空开关管的有害影响。
Claims (4)
1.一种分接开关,用于在可调式变压器的线圈抽头之间进行无中断的换接,
设置有两个负载支路,
每个负载支路具有作为主触点的真空开关管并且与作为主触点的真空开关管并联地还具有由转换电阻和另一真空开关管构成的串联电路,
这两个负载支路能与一个共同的负载线路连接,
其特征在于,
在第一负载支路的两个真空开关管(MSVa,TTVa)的电连接与负载线路(LA)之间设置有第一机械开关元件(MDCa),
在第二负载支路的两个真空开关管(MSVb,TTVb)的电连接与负载线路(LA)之间设置有另一机械开关元件(MDCb),
这两个机械开关元件(MDCa,MDCb)被构造为断路开关。
2.一种分接开关,用于在可调式变压器的线圈抽头之间进行无中断的换接,
设置有两个负载支路,
每个负载支路具有作为主触点的真空开关管并且与作为主触点的真空开关管并联地还具有由转换电阻和另一真空开关管构成的串联电路,
这两个负载支路能与一个共同的负载线路连接,
其特征在于,
在第一负载支路的两个真空开关管(MSVa,TTVa)的电连接与第二负载支路的两个真空开关管(MSVb,TTVb)之间设置有进行桥接的转换触头(MTF),该转换触头的根结触点引向负载线路(LA)。
3.如权利要求1或2所述的分接开关,其特征在于,与每个负载支路并联地设置附加的常闭主触头(MCa,MCb),所述常闭主触头(MCa,MCb)在稳定工作中进行持续电流引导并且直接与负载线路(LA)连接。
4.如权利要求1或2所述的分接开关,其特征在于,在两个负载支路的由转换电阻(Ra,Rb)和真空开关管(TTVa,TTVb)构成的串联电路之间设置有至少一个依赖于电压的电阻和/或至少一个火花间隙。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102009048813.8 | 2009-10-08 | ||
DE102009048813A DE102009048813A1 (de) | 2009-10-08 | 2009-10-08 | Stufenschalter |
PCT/EP2010/003555 WO2011042070A1 (de) | 2009-10-08 | 2010-06-12 | Stufenschalter |
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CN102473541A true CN102473541A (zh) | 2012-05-23 |
CN102473541B CN102473541B (zh) | 2015-05-20 |
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CN201080034264.9A Active CN102473541B (zh) | 2009-10-08 | 2010-06-12 | 分接开关 |
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EP (1) | EP2486577B1 (zh) |
CN (1) | CN102473541B (zh) |
DE (2) | DE102009048813A1 (zh) |
WO (1) | WO2011042070A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104737249A (zh) * | 2012-08-14 | 2015-06-24 | 赖茵豪森机械制造公司 | 负载转换开关、有载分接开关和用于转换有载分接开关的方法 |
CN106030950A (zh) * | 2014-02-24 | 2016-10-12 | 赖茵豪森机械制造公司 | 用于电网的网络节点、用于网络节点的可调变压器和用于运行网络节点的方法 |
CN106298295A (zh) * | 2015-05-25 | 2017-01-04 | 北京华天机电研究所有限公司 | 桥接式有载分接开关 |
CN107533929A (zh) * | 2015-04-22 | 2018-01-02 | 赖茵豪森机械制造公司 | 有载分接开关、用于操纵有载分接开关的方法以及具有有载分接开关的电气设备 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010045901B4 (de) | 2010-09-17 | 2012-12-27 | Maschinenfabrik Reinhausen Gmbh | Stufenschalter und Vakuumschaltröhre für einen solchen Stufenschalter |
DE102010053466A1 (de) | 2010-11-30 | 2012-05-31 | Maschinenfabrik Reinhausen Gmbh | Stufenschalter und Vakuumschaltröhre für einen solchen Stufenschalter |
DE102011119318B4 (de) | 2011-11-23 | 2014-11-27 | Maschinenfabrik Reinhausen Gmbh | Stufenschalter mit Vakuumschaltröhren |
DE102019115970A1 (de) * | 2019-06-12 | 2020-12-17 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
CN115023783A (zh) | 2019-12-19 | 2022-09-06 | 西门子能源全球有限公司 | 用于连接到高压电网的设备 |
DE102020123455A1 (de) | 2020-09-09 | 2022-03-10 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter und verfahren zur betätigung eines laststufenschalters |
DE102022117592A1 (de) | 2022-07-14 | 2024-01-25 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter und Verfahren zur Betätigung eines Laststufenschalters |
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DE1901105A1 (de) * | 1968-02-16 | 1969-10-02 | Siemens Ag | Schaltungsanordnung zum unterbrechungslosen Lastumschalten bei Stufentransformatoren |
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DE1917692B2 (de) * | 1969-04-05 | 1972-02-10 | Siemens AG, 1000 Berlin u 8000 München | Lastumschalter fuer stufentransformatoren oder stufendrossel spulen mit vier vakuumschaltern |
DE2348091C2 (de) * | 1973-09-25 | 1975-08-28 | Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg | Dreiphasiger zylindrischer Lastumschalter für Stufenschalter von Stufentransformatoren |
DE2357209B1 (de) | 1973-11-16 | 1975-02-13 | Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg | Stufenschalter für Stufentransformatoren |
DE2534644A1 (de) * | 1975-08-02 | 1977-02-17 | Fuji Electric Co Ltd | Laststufenschalter |
DE2534641A1 (de) * | 1975-08-02 | 1977-02-10 | Fuji Electric Co Ltd | Laststufenschalter |
DE2604344A1 (de) | 1976-02-05 | 1977-08-18 | Reinhausen Maschf Scheubeck | Stufentransformator mit ueberspannungsschutzeinrichtung |
DE4124431C2 (de) * | 1990-08-16 | 1997-07-24 | Siemens Ag | Schutzschaltung für Schaltkontakte eines Transformator-Stufenschalters |
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2009
- 2009-10-08 DE DE102009048813A patent/DE102009048813A1/de not_active Withdrawn
- 2009-10-08 DE DE202009018524U patent/DE202009018524U1/de not_active Expired - Lifetime
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2010
- 2010-06-12 WO PCT/EP2010/003555 patent/WO2011042070A1/de active Application Filing
- 2010-06-12 CN CN201080034264.9A patent/CN102473541B/zh active Active
- 2010-06-12 EP EP10726435.0A patent/EP2486577B1/de active Active
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DE1901105A1 (de) * | 1968-02-16 | 1969-10-02 | Siemens Ag | Schaltungsanordnung zum unterbrechungslosen Lastumschalten bei Stufentransformatoren |
US4081741A (en) * | 1975-10-29 | 1978-03-28 | Asea Aktiebolag | On-load tap changer |
CN101395555A (zh) * | 2006-03-08 | 2009-03-25 | 阿雷瓦T&D股份有限公司 | 混合有载抽头变换器和操作该抽头变换器的方法 |
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CN104737249A (zh) * | 2012-08-14 | 2015-06-24 | 赖茵豪森机械制造公司 | 负载转换开关、有载分接开关和用于转换有载分接开关的方法 |
CN106030950A (zh) * | 2014-02-24 | 2016-10-12 | 赖茵豪森机械制造公司 | 用于电网的网络节点、用于网络节点的可调变压器和用于运行网络节点的方法 |
CN106030950B (zh) * | 2014-02-24 | 2019-01-15 | 赖茵豪森机械制造公司 | 用于电网的网络节点、用于网络节点的可调变压器和用于运行网络节点的方法 |
CN107533929A (zh) * | 2015-04-22 | 2018-01-02 | 赖茵豪森机械制造公司 | 有载分接开关、用于操纵有载分接开关的方法以及具有有载分接开关的电气设备 |
CN106298295A (zh) * | 2015-05-25 | 2017-01-04 | 北京华天机电研究所有限公司 | 桥接式有载分接开关 |
Also Published As
Publication number | Publication date |
---|---|
EP2486577B1 (de) | 2016-08-17 |
DE202009018524U1 (de) | 2012-01-31 |
DE102009048813A1 (de) | 2011-04-14 |
WO2011042070A1 (de) | 2011-04-14 |
CN102473541B (zh) | 2015-05-20 |
EP2486577A1 (de) | 2012-08-15 |
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