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1. 发明授权

US11631554B2 On-load tap changer and local network transformer having an on-load tap changer 有权
公开(公告)号：US11631554B2
公开(公告)日：2023-04-18
申请号：US16975740
申请日：2019-02-20
申请人： Maschinenfabrik Reinhausen GmbH
发明人： Christian Hammer , Andreas Sachsenhauser , Riccardo Dalla Vecchia
IPC分类号： H01H9/00
摘要： An on-load tap changer has: a first selector rod and a second selector rod; a load changeover-switch rod; a switch; and a transmission. The first selector rod, the second selector rod and the load changeover-switch rod are arranged collinearly. The transmission is configured to: move the first selector rod and the second selector rod during changeover from one selector contact to an adjacent selector contact in a first direction; and move the load changeover-switch rod during the changeover in the first direction and a second direction, which is opposite to the first direction, so as to actuate the switch.

2. 发明授权

US11327039B2 Monitoring of gases produced in an insulating-means circuit 有权
公开(公告)号：US11327039B2
公开(公告)日：2022-05-10
申请号：US17311362
申请日：2019-12-05
申请人： Maschinenfabrik Reinhausen GmbH
发明人： Rainer Frotscher , Andreas Sachsenhauser
IPC分类号： G09G3/3225 , G09G3/20 , G01N27/16 , H01H33/56 , G01N25/30
摘要： A method monitors gases produced in an insulating medium circuit. The insulating medium circuit is in contact with a transition resistor of an on-load tap-changer. The method includes: ascertaining a time profile of a resistor temperature of the transition resistor during a loading time period; and determining at least one characteristic value for characterizing the gases produced based upon the time profile of the resistor temperature.

3. 发明申请

US20220344079A1 RESISTOR ASSEMBLY FOR TAP CHANGER AND TAP CHANGER 有权
公开(公告)号：US20220344079A1
公开(公告)日：2022-10-27
申请号：US17640839
申请日：2020-09-08
申请人： Maschinenfabrik Reinhausen GmbH
发明人： Christian Hammer , Andreas Sachsenhauser , Alfred Bieringer , Riccardo Dalla Vecchia
IPC分类号： H01C13/02 , H01C1/01
摘要： A resistor assembly can be used in a tap changer. The resistor assembly may include: a resistor element, which is held by at least two resistor holders; a base plate with at least one opening and on which the at least two resistor holders holding the resistor element are arranged; a plurality of guides, respectively formed in each of the resistor holders and being configured to position a first end and a second end of the resistor element with respect to a longitudinal direction between the two resistor holders; and contact points of the resistor element, the contact points being electrically contacted by contacts of the tap changer in a condition where the resistor element is inserted into the resistor holder.

4. 发明授权

US10483879B2 On-load tap changer and method of and system for operating same 有权
公开(公告)号：US10483879B2
公开(公告)日：2019-11-19
申请号：US15560436
申请日：2016-04-13
申请人： MASCHINENFABRIK REINHAUSEN GMBH
发明人： Alfred Bieringer , Christian Hammer , Christian Hurm , Andreas Sachsenhauser
IPC分类号： H01H9/00 , H02P1/12 , H01F29/04 , H02K3/04 , H01H33/664
摘要： A load stepping switch (1) for uninterrupted changeover between winding taps (n, n+1) on a control winding (20) comprises —a changeover switch (2) that comprises a first, second and third changeover contact (2.1, 2.2, 2.3) and can adopt a first position, in which the first and third changeover contacts are connected, a second position, in which the second and third changeover contacts are connected, and a bridge position, in which the changeover contacts are connected; —a first fixed contact (4) that can be connected to a first winding tap; —a second fixed contact (5) that can be connected to a second winding tap; —a first moving contact (6) that can optionally make contact with each of the fixed contacts; —a second moving contact (7) that can optionally make contact with each of the fixed contacts; —a main path (8) that connects the first moving contact to the first changeover contact; —an auxiliary path (9) that connects the second moving contact to the second changeover contact via a current-limiting element (10); —a switching element (11) that is connected between the main path and the second changeover contact.

5. 发明授权

US10211627B2 Power-network note, variable transformer and method of operating the node 有权
公开(公告)号：US10211627B2
公开(公告)日：2019-02-19
申请号：US15110119
申请日：2015-02-18
申请人： Maschinenfabrik Reinhausen GmbH
发明人： Andreas Sachsenhauser , Uwe Kaltenborn , Thomas Schuster
IPC分类号： H02H7/26 , H02H3/20 , H02H7/04 , H02H7/055
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.

6. 发明申请

US20220026385A1 MONITORING OF GASES PRODUCED IN AN INSULATING-MEANS CIRCUIT 有权
公开(公告)号：US20220026385A1
公开(公告)日：2022-01-27
申请号：US17311362
申请日：2019-12-05
申请人： Maschinenfabrik Reinhausen GmbH
发明人： Rainer Frotscher , Andreas Sachsenhauser
IPC分类号： G01N27/16 , H01H33/56
摘要： A method monitors gases produced in an insulating medium circuit. The insulating medium circuit is in contact with a transition resistor of an on-load tap-changer. The method includes: ascertaining a time profile of a resistor temperature of the transition resistor during a loading time period; and determining at least one characteristic value for characterizing the gases produced based upon the time profile of the resistor temperature.

7. 发明授权

US10147563B2 On-load tap changer according to the reactor switching principle 有权
公开(公告)号：US10147563B2
公开(公告)日：2018-12-04
申请号：US15104762
申请日：2015-01-12
申请人： Maschinenfabrik Reinhausen GmbH
发明人： Uwe Kaltenborn , Alfred Bieringer , Christian Hammer , Christian Pircher , Andreas Sachsenhauser , Thomas Schuster
IPC分类号： H01F27/02 , H01H9/00 , H01F27/08 , H01F27/06 , H01F29/02 , H01F29/04 , H02P13/06
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).

8. 发明授权

US09941064B2 On-load tap changer, tap-changing transformer for voltage regulation and method for implementing tap changer in the tap-changing transformer 有权
公开(公告)号：US09941064B2
公开(公告)日：2018-04-10
申请号：US14906331
申请日：2014-08-01
申请人： Maschinenfabrik Reinhausen GmbH
发明人： Christian Hammer , Andreas Sachsenhauser , Konrad Raedlinger , Max Weidinger , Thomas Schuster
IPC分类号： G05F1/14 , G05F1/147 , H01H9/00 , H01F29/02
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.

9. 发明申请

US20150179362A1 LOAD-TRANSFER SWITCH, ON-LOAD TAP CHANGER, AND METHOD OF SWITCHING SAME 审中-公开
标题翻译：负载转换开关，负载转换器及其切换方法
公开(公告)号：US20150179362A1
公开(公告)日：2015-06-25
申请号：US14417267
申请日：2013-07-11
申请人： Maschinenfabrik Reinhausen GmbH
发明人： Christian Hammer , Andreas Sachsenhauser
IPC分类号： H01H9/00
CPC分类号： H01H9/0016 , H01F29/04 , H01H9/0027
摘要： The invention relates to a load transfer switch for an on-load tap changer for switching from a connected winding tap to a preselected winding tap of a tapped transformer. The load transfer switch comprises at least one resistance-free current path and at least one resistive path. A measuring device measures an actual value of a phase angle between a load current and a tapped transformer voltage from the preselected winding tap for discharging a current. The chronological connection sequence of the paths of the load transfer switch can be variably adjusted by an adjusting device dependent on the measured actual value and a specified threshold of the phase angle such that the voltage constantly lies within a voltage range between the connected winding tap and the preselected winding tap during a load switch. The invention also relates to an on-load tap changer with such a load transfer switch and to a method for switching a load transfer switch from a connected winding tap to a preselected winding tap of a tapped transformer.
摘要翻译：本发明涉及一种用于有载分接开关的负载转换开关，用于从连接的绕组抽头切换到抽头变压器的预选绕组抽头。载荷传递开关包括至少一个电阻自由电流路径和至少一个电阻路径。测量装置测量来自用于放电的预选绕组抽头的负载电流和抽头变压器电压之间的相位角的实际值。根据测量的实际值和相位角的规定阈值，可以通过调节装置可变地调整负载转换开关的路径的时间顺序连接顺序，使得电压恒定在连接的绕组丝锥和在负载开关期间的预选绕组丝锥。本发明还涉及具有这种负载转换开关的有载分接开关以及用于将负载转换开关从连接的绕组抽头切换到抽头变压器的预选绕组抽头的方法。

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