WO2015169628A1 - Stellungsanzeige - Google Patents
Stellungsanzeige Download PDFInfo
- Publication number
- WO2015169628A1 WO2015169628A1 PCT/EP2015/059059 EP2015059059W WO2015169628A1 WO 2015169628 A1 WO2015169628 A1 WO 2015169628A1 EP 2015059059 W EP2015059059 W EP 2015059059W WO 2015169628 A1 WO2015169628 A1 WO 2015169628A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- indicator
- position indicator
- gear
- display
- disc
- Prior art date
Links
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 244000027321 Lychnis chalcedonica Species 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- 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
- H01H9/0027—Operating mechanisms
- H01H9/0033—Operating mechanisms with means for indicating the selected tap or limiting the number of selectable taps
-
- 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
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/165—Indicators for switching condition, e.g. "on" or "off" comprising numbered dials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/028—Printed information
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2235/00—Springs
- H01H2235/01—Spiral spring
Definitions
- the present invention relates to a position indicator for a tap changer of tapped transformers.
- tap changer or on-load tap-changer To change the transmission ratio of an oil-insulated transformer under load so-called tap changer or on-load tap-changer are provided, whose structure and operation are known in principle and which are designed for wiring the winding taps of a tap winding of a transformer.
- Such a connected to the tap winding on-load tap changer, usually has a diverter switch and a selector, wherein the selector preferably consists of a preselector and a fine selector.
- the fine selector is to powerless
- Selection of the connected winding tap of the tap winding and the preselector provided to increase the control range the selection depending on the application either be designed as a Wender for connection and countercurrent stage winding or as a coarse selector for articulation of the tap winding at the beginning or end of the main winding of the transformer can.
- the load switching itself is done by the load changeover switch of the on-load tap-changer, from the previous to the new, preselected winding tap of the tap winding of the transformer.
- the diverter switch usually has mechanical switching contacts and resistance contacts, wherein the switching contacts for direct connection of the respective winding taps with the load dissipation and the resistor contacts for short-term bridging by means of one or more Studentsschaltwi- standby serve.
- on-load tap-changer is the integrated on-load tap-changer, also called load selector.
- load selector the diverter switch and the fine selector are installed in one unit.
- the winding tap to be connected is preselected and then connected in one step.
- This embodiment of an on-load tap changer can also have a preselection which is either external or in the process.
- housing of the on-load tap changer is arranged, in an insulating medium, preferably insulating oil.
- Such tap changers also generally have a position indicator, by means of which the current switching position is indicated by means of a display disk coupled to the drive of the selector via a transmission gear in the area of the cover closing the diverter switch.
- the diverter switch must be removed at regular intervals for auditing purposes, while the selector, which is subject to virtually no wear, can remain unaffected.
- technical precautions must be taken at the position indicator to prevent an adjustment of the display relative to the current switching position of the tap changer during the revision work. This is particularly difficult if the position indicator is picked up directly from the selector, which must be done especially when the transmission is arranged for the selector between diverter switch and selector.
- the position indicator must therefore be able to offer up to more than 100 switch positions.
- the number of positions to be accommodated on the display disk is essentially limited by the diameter of the indicator disk and the fact that the shift angle of the transmission gear and the digits for the display can not be made arbitrarily small.
- the object of the invention is to provide a position indicator for a tap changer of tapped transformers, which eliminates the aforementioned disadvantages.
- the invention proposes a position indicator comprising
- a display gear which is coupled to the two indicator discs to the switch-direction-dependent drive and can be coupled to a switching shaft of the tap changer;
- each indicator disc has a row of numbers arranged along a circumferential or circular line
- the invention is based on the recognition, by means of the special arrangement of the numbers on the display discs in cooperation with the display gear to be able to specify more than 100 different switching positions of the tap changer in a simple and compact manner by the first digit through the first display disc and the tens digit of a possible shift position can be represented as the total number by means of the second display dial.
- the first display dial is rotated by a definable circular sector of preferably 36 degrees by means of the display gear, so that in the tangential region of the display discs the next unit of the first display disc is opposite to the illustrated tens.
- the switch position 09 in 10, or 10 in 09 can be represented as a total number.
- the display gear is designed as a stepping gear and includes a drive wheel and a driven wheel.
- the display gear is designed as a Maltese cross gear
- the drive wheel has a Maltese driver or driver
- the output gear is designed as a Maltese wheel, which corresponds to the Maltese driver and / or cooperates.
- the Maltese driver is preferably arranged on an upper side of the drive wheel and can carry a roller element.
- the Geneva wheel is preferably arranged on an upper side of the driven wheel.
- the drive wheel has a locking disk;
- the driven gear has a locking cam, which corresponds to the locking disk and / or cooperates.
- the locking disc is located below the Maltese driver and the blocking cam below the Geneva wheel. It can be provided that
- the first indicator disk is coupled to the drive wheel via a first pivot pin
- the second indicator disc is coupled to the output gear via a second pivot pin.
- the number row of the first display disc comprises the numbers 0 to 9; and / or the row of numbers of the second display disc comprises the numbers 0 to 10.
- each number series may be formed as desired in any manner and may include, for example, a different number of numbers and / or other numbers.
- each of the proposed position indicators comprises a base plate on which the display device and the display gear are arranged such that the position indicator forms a preassembled or preassembled assembly, which are detachably mounted to the oil vessel of the tap changer or removably attached or detachably attached can.
- this has the advantage that not individual components must be dismantled separately, but the entire position indicator can be removed as an assembly or disassembled or reinstalled or assembled.
- each of the proposed position indicators comprises a locking device which is designed such that it releases the display gear when the position indicator is mounted and locks the display gear when the position indicator is released.
- the drive wheel has first gear elements
- the output gear has second gear elements
- the locking device a first latch member which corresponds to the first gear elements and / or cooperates, can engage in this and on the base plate is mounted, a second pawl member which corresponds to the second gear elements and / or cooperates, can engage in this and is mounted on the base plate, and comprises a compression spring which is supported on the pawl elements and biases them into the blocking position.
- the first gear elements are arranged on the underside of the drive wheel and the second gear elements on the underside of the driven gear.
- each pawl member has a bore
- the holes in the release position of the locking device are aligned with each other and not aligned with each other in the locking position of the locking device;
- the holes are or can be moved together via a pin attached to the oil pan.
- the individual components of the position indicator are made using a plastic and / or a polymer and / or a glass fiber reinforced plastic.
- each of the proposed position indicators comprises extension elements between the respective pivot pins and the corresponding indicator discs. It is particularly advantageous if the display discs are arranged outside a lid of the tap changer.
- FIG. 1 a, b show a perspective side view of a first embodiment of a position indicator
- FIG. 2 is another perspective side view of the position indicator of
- FIG. 1 is a diagrammatic representation of FIG. 1 ;
- FIG. 3 is a side perspective view of a second embodiment of the position indicator.
- a first embodiment of a position indicator 1 is shown schematically. For reasons of clarity, only essential components of the position indicator 1 are shown and described.
- Such position indicators 1 are used in particular to display the current switching position of a tap changer, not shown here.
- Generic tap changer have a switching shaft and arranged in the bottom region of an oil vessel position transmission, as is known for example from DE 81 04 864 U1, DE 71 34 013 or DE 34 21 346 C2. Relevant text passages of the mechanical coupling of the position gear with the switching shaft of the tap changer, as well as the aforementioned assemblies per se, are incorporated by reference and explained the subject of this description.
- the position indicator 1 includes a display device 51, a display gear 10, and a base plate 5.
- a movement tap of the positioner gear of the tap changer thus takes place via a display shaft 2.
- a sleeve 3 is pushed onto the indicator shaft 2, for example, and mechanically fastened by means of fixing elements 4.1 and 4.2, in particular pins or screws on the indicator shaft 2.
- the position indicator 1 also has a supporting base plate 5, by means of which it can be arranged together with a carrier arm 50 on a region of an oil vessel 6 of the tap changer, which is only partially shown here.
- the base plate 5 bores 7.1 and 7.2, for example, to be screwed to a recess provided in the oil reservoir 6.
- a plurality of spacer elements 8 are provided on the base plate 5, which hold a further plate 9 spaced from the base plate 5.
- a display gear 10 with a drive wheel 1 1 and a driven wheel 12. Particularly preferably, it is in the display gear 10 to a stepping gear, in particular a Maltese cross gear.
- the drive wheel 11 has on an upper side 13 a Maltese driver 14.1 visible only in FIG. 1 b with a roller element 15 arranged thereon. as a locking disc 14.2, which has a recess in the disc segment of the locking disc 14.2 in the region of the Maltese driver 14.1.
- On a non-visible underside 16 not visible toothing elements 17 are also provided in this illustration.
- the Maltese driver 14.1 and the locking disc 14.2 are rotatably by means of a first pivot pin 22 with the indicator shaft 2 in operative connection. The necessary adhesion is explained below in detail.
- the output gear 12 is formed as a Maltese wheel 12.1, in particular Maltese star wheel, with a plurality of engagement elements 31 and a locking cam 18. Also, the output gear 12 is rotatably connected by a second pivot pin 27. In addition, the driven gear 12 also includes gear elements 20 on its underside 19 (not shown in FIG. 1 b). The way in which the individual components intermesh during a switchover and influence each other is explained in detail below.
- first indicator disc 21 With the drive wheel 1 1 mechanically coupled to a first indicator disc 21, which rotates with a rotational movement of the drive wheel 1 1 with this.
- first indicator disc 21 On the first indicator disc 21 are also circularly arranged a first row of numbers 0 to 9.
- the aforementioned mechanical coupling between the drive wheel 1 1 and first indicator disc 21 can be particularly preferably via a first pivot pin 22 having at its opposite ends in each case a keyway which at the one end with a corresponding in the drive wheel 1 1 first keyway and at its other end with a provided in the drive pulley 21 second keyway and an insertable into the respective keyway, but not shown in detail, key is in operative connection.
- a second indicator disk 26 which rotates with it during a rotational movement of the output gear 12.
- On the second display disc 26 are also circular arranged a second row of numbers 0 to 10.
- the above mechanical coupling between the driven gear 12 and second indicator disc 26 can be particularly preferably via a second pivot pin 27 which has at its opposite ends in each case a keyway, the one end with a corresponding in the output gear 12 first keyway and at its other end with a provided in the second indicator disc 26 second keyway and a usable in the respective keyway, but not shown in detail, feather is in operative connection.
- the indicator shaft 2 must cover a rotation angle of 36 degrees for each switching.
- 9 of 10 possible switching positions of the drive wheel 1 1 here is the locking disc 14.2 with the locking cam 18 of the drive wheel 12 into engagement, so that accordingly only the drive wheel 1 1, but not the driven wheel 12, rotates. Only in a possible switching position passes during the switching, that is, a rotation of the indicator shaft 2 by a defined rotation angle of preferably 36 degrees, the roller member 15 of the Maltese driver 14.1 in engagement with the engagement elements 31 of the Geneva wheel 12.1 and takes this with until the roller element 15th again disengaged from the corresponding engagement elements 31 passes.
- this switching operation also passes the recess in the circular sector of the locking disc 14.2 out of engagement with the locking cam 18 of the output gear 12, so that thus a transmission of the rotational movement of the drive wheel 1 1 is released to the output gear 12. Therefore, this switching operation on the first display disk 21 is assigned the number change from 9 to 0 as a unit digit in the tangential region of the display disks 21 and 26, since when crossed over this numerical sequence also the tens digit of the tangential region represented by the second display disk 26 will have to change accordingly.
- the switching operations can also be carried out alternately, so that switching back and forth between two switching positions is possible.
- the position indicator 1 is preferably designed as a preassembled module and thereby comprises the first and second indicator disc 21 and 26, the plate 9, the first and second pivot pins 22 and 27, the display gear 10 and spaced by means of the spacer elements 8 base plate 5.
- the components of the preassembled module are formed from a polymer, to which, depending on the application, a glass-fiber mixture may also be added. As can be seen from FIG.
- the preassemblable subassembly additionally comprises a blocking device 32, which has two pawl elements 33 and 34 which can be actuated by means of a compression spring 35 arranged between the pawl elements 33 and 34, such that the respective pawl elements 33 and 34 provided latch hooks 36 and 37 with the toothed elements 17 and 20 of the drive wheel 1 1 and output gear 12 are latchably engageable.
- the pawl members 33 and 34 pivot about a common axis of rotation 38 when the preassembled assembly is removed from the recess of the oil pan 6.
- FIG. 3 is a schematic representation of a second embodiment of a position indicator.
- This second embodiment is similar to the first embodiment, so that below all the differences are explained in more detail below.
- extension members 41 and 42 are provided between the pivot pins 22 and 27 so that the indicator discs 21 and 26 may be disposed outside a lid of the tap changer.
Landscapes
- Control Of Transmission Device (AREA)
- Mechanical Control Devices (AREA)
- Transmission Devices (AREA)
- Gear Transmission (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580020632.7A CN106233410A (zh) | 2014-05-08 | 2015-04-27 | 位置指示器 |
JP2016564607A JP2017515308A (ja) | 2014-05-08 | 2015-04-27 | 位置表示器 |
EP15718493.8A EP3140844B1 (de) | 2014-05-08 | 2015-04-27 | Stellungsanzeige |
US15/122,645 US20170069439A1 (en) | 2014-05-08 | 2015-04-27 | Position indicator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014106475.5 | 2014-05-08 | ||
DE102014106475.5A DE102014106475A1 (de) | 2014-05-08 | 2014-05-08 | Stellungsanzeige |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015169628A1 true WO2015169628A1 (de) | 2015-11-12 |
Family
ID=53005574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/059059 WO2015169628A1 (de) | 2014-05-08 | 2015-04-27 | Stellungsanzeige |
Country Status (6)
Country | Link |
---|---|
US (1) | US20170069439A1 (de) |
EP (1) | EP3140844B1 (de) |
JP (1) | JP2017515308A (de) |
CN (1) | CN106233410A (de) |
DE (1) | DE102014106475A1 (de) |
WO (1) | WO2015169628A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109616343A (zh) * | 2018-12-21 | 2019-04-12 | 云南电网有限责任公司电力科学研究院 | 一种配电变压器的分接开关档位显示装置和方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016205981A1 (zh) * | 2015-06-26 | 2016-12-29 | 济南瑞泉电子有限公司 | 对射式多位干式计量表 |
WO2021106065A1 (ja) * | 2019-11-26 | 2021-06-03 | 株式会社東芝 | 負荷時タップ切換器 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8104864U1 (de) * | 1981-02-21 | 1982-06-24 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | "stellungsanzeige fuer stufenschalter von stufentransformatoren" |
CN201167023Y (zh) * | 2008-02-26 | 2008-12-17 | 上海华明电力设备制造有限公司 | 一种变压器分接开关的位置指示机构 |
Family Cites Families (22)
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US2145032A (en) * | 1929-07-30 | 1939-01-24 | Int Standard Electric Corp | Automatic stock quotation display board |
US2030624A (en) * | 1930-01-14 | 1936-02-11 | Ek Emil | Counting device |
US2106686A (en) * | 1934-10-31 | 1938-01-25 | Wood John Mfg Co Inc | Locating, locking, and indicating means for a shiftable gear |
US2485883A (en) * | 1944-06-02 | 1949-10-25 | Bell Telephone Labor Inc | Air position indicator |
AT176984B (de) * | 1952-02-07 | 1953-12-10 | Ver Telephon Czeija Nissl & Co | Anzeigevorrichtung zur Anzeige von den Stellungen mindestens zweier zusammenwirkender elektrischer Stufenschalter oder Antriebe elektrisch variabler Bauteile entsprechenden Schaltungen oder Werten |
US3375526A (en) * | 1966-05-06 | 1968-03-26 | Sangamo Electric Co | Fault recorder with dual magnetic tapes |
US3548166A (en) * | 1967-05-03 | 1970-12-15 | Molex Products Co | Countdown counter control assembly |
US3611409A (en) * | 1969-04-08 | 1971-10-05 | Glidden Electric Corp | Time code recording device |
DE1937939A1 (de) * | 1969-07-25 | 1971-02-04 | Sonceboz Sa | Belastungsindikator fuer Wechselstrom |
US3597918A (en) * | 1969-10-06 | 1971-08-10 | Gen Time Corp | Digitally indicating clock-timer |
DE7134013U (de) | 1971-09-07 | 1973-01-04 | Gebrueder Scheubeck Kg | Stufenschalter fuer regeltransformatoren mit schaltstellungsanzeige |
JPS5636396B2 (de) * | 1974-03-08 | 1981-08-24 | ||
JPS5521117Y2 (de) * | 1974-04-26 | 1980-05-21 | ||
US3959800A (en) * | 1974-05-28 | 1976-05-25 | Murray Friedel | Unitary photographic lettering and display typography device |
GB1571753A (en) * | 1977-03-25 | 1980-07-16 | Seiko Koki Kk | Alarm time piece |
JPS5810324U (ja) * | 1981-07-13 | 1983-01-22 | 三菱電機株式会社 | タップ切換器の転換器用間欠駆動装置 |
DE3421346A1 (de) | 1984-06-08 | 1985-12-12 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | Aus lastumschalter und stufenwaehler bestehender stufenschalter mit mechanischer endstellungsbegrenzung |
DE19707528C1 (de) * | 1997-02-25 | 1998-08-13 | Reinhausen Maschf Scheubeck | Stellungsanzeige |
US7614357B2 (en) * | 2003-09-08 | 2009-11-10 | Cooper Technologies Company | Step voltage regulator polymer position indicator with non-linear drive mechanism |
DE102006008338B3 (de) * | 2006-02-23 | 2007-02-15 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter mit Kraftspeicher |
GB2470202B (en) * | 2009-05-13 | 2013-11-20 | Visteon Global Tech Inc | Pointer display |
US9970792B2 (en) * | 2014-08-11 | 2018-05-15 | Continental Automotive Systems, Inc. | Stepper motor assembly having opposite shafts |
-
2014
- 2014-05-08 DE DE102014106475.5A patent/DE102014106475A1/de not_active Withdrawn
-
2015
- 2015-04-27 CN CN201580020632.7A patent/CN106233410A/zh active Pending
- 2015-04-27 US US15/122,645 patent/US20170069439A1/en not_active Abandoned
- 2015-04-27 WO PCT/EP2015/059059 patent/WO2015169628A1/de active Application Filing
- 2015-04-27 JP JP2016564607A patent/JP2017515308A/ja active Pending
- 2015-04-27 EP EP15718493.8A patent/EP3140844B1/de not_active Not-in-force
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8104864U1 (de) * | 1981-02-21 | 1982-06-24 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | "stellungsanzeige fuer stufenschalter von stufentransformatoren" |
CN201167023Y (zh) * | 2008-02-26 | 2008-12-17 | 上海华明电力设备制造有限公司 | 一种变压器分接开关的位置指示机构 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109616343A (zh) * | 2018-12-21 | 2019-04-12 | 云南电网有限责任公司电力科学研究院 | 一种配电变压器的分接开关档位显示装置和方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3140844A1 (de) | 2017-03-15 |
CN106233410A (zh) | 2016-12-14 |
JP2017515308A (ja) | 2017-06-08 |
US20170069439A1 (en) | 2017-03-09 |
EP3140844B1 (de) | 2017-09-13 |
DE102014106475A1 (de) | 2015-11-12 |
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