EP0481239B1 - Ölfilter, insbesondere für Stufenschalter von Stufentransformatoren - Google Patents
Ölfilter, insbesondere für Stufenschalter von Stufentransformatoren Download PDFInfo
- Publication number
- EP0481239B1 EP0481239B1 EP91116009A EP91116009A EP0481239B1 EP 0481239 B1 EP0481239 B1 EP 0481239B1 EP 91116009 A EP91116009 A EP 91116009A EP 91116009 A EP91116009 A EP 91116009A EP 0481239 B1 EP0481239 B1 EP 0481239B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- filter
- filter chamber
- moisture
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- 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
- H01H2009/0055—Oil filters for tap change devices
Definitions
- Oil filters in particular for tap changers of tap transformers
- the invention relates to an oil filter according to the preamble of claim 1.
- Such oil filters are known: DE-OS 22 57 615.
- transformer oil serving as a cooling and insulating liquid is subject to both contamination and undesirable water absorption during operation of the transformer.
- the combustion and combustion residues are usually removed from the diverter switch oil by filters. It is both known, for example from DE 25 12 145, to provide a filter device consisting of deposition surfaces in the diverter switch vessel itself, and, as disclosed for example in DE 29 48 111, to provide a separate oil filter system consisting of filter and circulating pump, which continuously switches the diverter switch oil or circulated periodically, thereby retaining the combustion and combustion residues.
- An oil filter is known from DE 22 57 615, in which the water components are filtered out of the oil of a transformer by moisture-absorbing or hygroscopic materials between an oil circulation pump and a conventional oil filter.
- the filter consists of a mixture of absorption granules to absorb the water components and filter granules.
- the contaminants to be filtered out due to the aging of the transformer oil form an oil sludge that encloses and glues the surface of the individual granules and thus prevents the desired moisture absorption after a short time.
- the filter In order to achieve at least a reasonably satisfactory mode of operation over a longer period of time in the known filter, the filter would have to have a large longitudinal expansion in the direction of flow of the oil, so that the oil to be filtered is guided past as much granulate as possible; Of course, the aim is to make the filter construction as compact as possible.
- the object of the present invention is to provide a compact and simply constructed oil filter of the type described at the outset which allows efficient filtering of both the combustion and combustion residues on the one hand and the water components on the other hand, in particular of diverter switch oil from tap changers.
- the filter according to the invention allows both conventional filtering, i.e. Cleaning of solid components, the oil as well as its drying. Because in the same filter the filtering off of combustion and combustion residues, other abrasion etc. takes place and only then is the filtered oil pressed through the water-absorbing area, it is impossible for oil sludge to settle in this water-absorbing area, which could seal the surface of the absorption material. Since this danger no longer exists, the grain size of a granulate used especially for this purpose can be selected to be small, regardless of oil sludge deposits, and the effective absorption surface can thus be increased.
- the advantage of the invention is that the distance that the oil has to travel through the inner chamber to the outlet opening is lengthened, and thus the effective absorption surface, ie the surface area through which the oil flows in the inner chamber, is increased again.
- Figure 1 shows the filter according to the invention in a corresponding filter housing schematically in a lateral sectional view.
- the actual oil filter is arranged in its oil space 2 and fastened with a fastening bolt 9. It is designed as a hollow cylinder and has an outer filter wall 3 with oil inlet openings 5 and an inner filter wall 4 with oil outlet openings 6. The end faces are closed by plates 10 and 11 in a liquid and gas tight manner.
- An outer filter chamber 7 and an inner filter chamber 8 are arranged concentrically in the interior of the filter.
- the outer filter chamber is made with conventional material to filter out the burn-up and combustion residues, e.g. with filter paper in a lamella arrangement, glass wool or similar. filled.
- the inner filter chamber 8 is covered with a granulate of water-absorbing material, e.g. Zeolite, filled and interspersed with guide elements 12, which are designed as disks and penetrate the inner filter chamber 8 like a labyrinth.
- a granulate of water-absorbing material e.g. Zeolite
- this intermediate wall which is also not shown in the drawing, can be omitted.
- the oil within the inner filter chamber 8 is positively guided by the guide elements 12, which are designed, for example, as flat, vertical disks; it travels a much larger distance to the oil outlet openings 6 than the length of the oil filter.
- the effective surface of the granules or the like in the inner filter chamber 8, over which the oil flows, can be substantially increased without enlarging the filter dimensions, which in turn allows improved water absorption.
- the guide elements can also be designed differently within the scope of the invention; for example, they can form concentric cylinders, shells, segments or the like.
- Figure 2 shows such a further embodiment of the filter.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Transformer Cooling (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Fats And Perfumes (AREA)
- Lubricants (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4033172A DE4033172C1 (zh) | 1990-10-19 | 1990-10-19 | |
DE4033172 | 1990-10-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0481239A1 EP0481239A1 (de) | 1992-04-22 |
EP0481239B1 true EP0481239B1 (de) | 1994-05-18 |
Family
ID=6416592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91116009A Expired - Lifetime EP0481239B1 (de) | 1990-10-19 | 1991-09-20 | Ölfilter, insbesondere für Stufenschalter von Stufentransformatoren |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0481239B1 (zh) |
JP (1) | JP2515359Y2 (zh) |
AT (1) | ATE105968T1 (zh) |
BR (1) | BR9103824A (zh) |
DE (2) | DE4033172C1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1757081B (zh) * | 2003-04-04 | 2011-04-13 | 赖茵豪森机械制造公司 | 用于油绝缘的变压器、扼流圈或分接开关的空气干燥器 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6360559B1 (en) * | 1999-06-02 | 2002-03-26 | Advantest Corporation | Cooling system |
KR20010076864A (ko) * | 2000-01-28 | 2001-08-16 | 류르만 하로엠, 마이어 게럴드 | 탭셀렉터 스위치의 오일여과장치 |
DE10210396C1 (de) * | 2002-03-08 | 2003-07-10 | Reinhausen Maschf Scheubeck | Ölfilteranlage |
DE102006053629B4 (de) * | 2006-11-14 | 2011-03-10 | Marco Systemanalyse Und Entwicklung Gmbh | Filterstation |
DE102006053630B4 (de) * | 2006-11-14 | 2016-05-19 | Marco Systemanalyse Und Entwicklung Gmbh | Filterpatrone |
CN102723170A (zh) * | 2012-01-04 | 2012-10-10 | 吴江市东泰电力特种开关有限公司 | 一种有载分接开关分隔式油室 |
CN102825024B (zh) * | 2012-09-14 | 2014-03-12 | 保定天威集团有限公司 | 一种变压器冲洗装置的滤网清理方法 |
CN105612586B (zh) * | 2013-04-17 | 2017-10-17 | Abb 技术有限公司 | 电气设备中的吸湿器 |
EP2743943A1 (en) | 2013-05-22 | 2014-06-18 | ABB Technology Ltd | Transformer tap changer |
CN104979078B (zh) * | 2015-07-01 | 2017-01-25 | 陕西金源自动化科技有限公司 | 一种免维护吸湿器及其控制方法 |
CN106373726B (zh) * | 2016-10-31 | 2017-11-21 | 陕西金源自动化科技有限公司 | 一种双干燥室纵向排布的温控投切免维护吸湿器 |
CN108987060B (zh) * | 2018-08-03 | 2021-01-12 | 安徽柒海智能控制技术有限公司 | 一种变压器呼吸器及其运行方法 |
DE102019122031A1 (de) * | 2018-09-11 | 2020-03-12 | Mann+Hummel Gmbh | Trocknungssystem, Trocknerkartusche und Verwendung einer Trocknerkartusche |
CN112654407A (zh) * | 2018-09-11 | 2021-04-13 | 曼·胡默尔有限公司 | 干燥器芯盒、干燥系统以及其使用 |
CN111228891A (zh) * | 2020-03-22 | 2020-06-05 | 贵州锦秀黔川环境保护工程有限公司 | 矿山污水处理一体化设备 |
FR3135626B1 (fr) * | 2022-05-17 | 2024-04-12 | Sogefi Filtration Spa | Cartouche filtrante à effet déshydratant et dispositif de filtration pour lubrifiant incluant la cartouche |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2253295A (en) * | 1938-08-03 | 1941-08-19 | Ohio Brass Co | Breather for liquid containers |
DE1949742U (de) * | 1963-06-22 | 1966-11-17 | Knecht Ges Mit Beschraenkter H | Kraftstoff-filter. |
GB1225673A (zh) * | 1968-03-27 | 1971-03-17 | ||
DE1905233A1 (de) * | 1969-01-29 | 1970-08-06 | Siemens Ag | Elektrisches Geraet fuer Hochspannung mit einem Isolieroel |
DE2257615A1 (de) * | 1972-11-24 | 1974-05-30 | Kurt Jaczak | Apparat zum trocknen und reinigen von transformatoren-oelen |
DE2432911A1 (de) * | 1974-07-09 | 1976-01-29 | Trafofit Gmbh | Verfahren und vorrichtung zum entziehen von wasser aus dielektrischen fluessigkeiten |
CA1167774A (en) * | 1980-06-23 | 1984-05-22 | Andrew D. Lewis | Fuel filter assembly and cartridge |
US4437082A (en) * | 1982-07-12 | 1984-03-13 | Westinghouse Electric Corp. | Apparatus for continually upgrading transformer dielectric liquid |
DE8628284U1 (zh) * | 1986-10-23 | 1986-12-18 | Leybold-Heraeus Gmbh, 5000 Koeln, De |
-
1990
- 1990-10-19 DE DE4033172A patent/DE4033172C1/de not_active Expired - Fee Related
-
1991
- 1991-09-04 BR BR919103824A patent/BR9103824A/pt not_active IP Right Cessation
- 1991-09-20 DE DE59101667T patent/DE59101667D1/de not_active Expired - Fee Related
- 1991-09-20 EP EP91116009A patent/EP0481239B1/de not_active Expired - Lifetime
- 1991-09-20 AT AT91116009T patent/ATE105968T1/de not_active IP Right Cessation
- 1991-10-16 JP JP1991084037U patent/JP2515359Y2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1757081B (zh) * | 2003-04-04 | 2011-04-13 | 赖茵豪森机械制造公司 | 用于油绝缘的变压器、扼流圈或分接开关的空气干燥器 |
Also Published As
Publication number | Publication date |
---|---|
EP0481239A1 (de) | 1992-04-22 |
JP2515359Y2 (ja) | 1996-10-30 |
JPH0496823U (zh) | 1992-08-21 |
DE4033172C1 (zh) | 1992-05-21 |
DE59101667D1 (de) | 1994-06-23 |
BR9103824A (pt) | 1992-05-19 |
ATE105968T1 (de) | 1994-06-15 |
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