DE2640807A1 - Transformer tap changer oil tank seal - has special clamping rings holding ends onto cylinder wall - Google Patents
Transformer tap changer oil tank seal - has special clamping rings holding ends onto cylinder wallInfo
- Publication number
- DE2640807A1 DE2640807A1 DE19762640807 DE2640807A DE2640807A1 DE 2640807 A1 DE2640807 A1 DE 2640807A1 DE 19762640807 DE19762640807 DE 19762640807 DE 2640807 A DE2640807 A DE 2640807A DE 2640807 A1 DE2640807 A1 DE 2640807A1
- Authority
- DE
- Germany
- Prior art keywords
- seal
- metal flange
- oil tank
- tap changer
- cylinder wall
- 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.)
- Ceased
Links
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
- H01F27/02—Casings
-
- 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
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
-
- 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
- H01H9/0044—Casings; Mountings; Disposition in transformer housing
-
- 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
- H01H9/0044—Casings; Mountings; Disposition in transformer housing
- H01H2009/005—Details concerning the sealing of the oil filled casings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
Description
Abdichtung für das zylindrische Ölgefäß Seal for the cylindrical oil compartment
eines Lastumschal ters für Stufenschalter. a diverter switch for tap changers.
Die Erfindung bezieht sich auf die Abdichtung für das zylindrische Ölgefäß eines Lastumschalters für Stufenschalter, welches im Öl kessel des Regel= transformators untergebracht ist.The invention relates to the seal for the cylindrical Oil compartment of a diverter switch for tap changer, which is in the oil boiler of the rule = transformer is housed.
Das Abdichten derartiger Ölgefäße ist erforderlich, weil üblicherweise der Lastschal terölraum und der Transformatorölraum voneinander getrennt sind und auch getrennte Ausdehnungsgefäße besitzen, welche auf unterschiedlichem Niveau angebracht sind. Dadurch ergeben sich zwischen Transformatorölraum und Lastumschal teröl raum Druckdifferenzen, gegen welche das Lastumschal= tergefäß öl dicht sein muß.The sealing of such oil vessels is necessary because it is customary the load switch oil chamber and the transformer oil chamber are separated from each other and also have separate expansion vessels, which are attached at different levels are. This results in between the transformer oil compartment and diverter switch oil compartment Differences in pressure against which the diverter switch container must be tight.
Das Ölgefäß des Lastumschalters besteht aus einem zylindrischen Isolierrohr, das an beiden Stirnseiten abgedichtet befestigt ist. Es ist besonders wichtig, daß die Verbindungsstellen zwischen dem Isolierrohr und den Metallteilen auf Lebensdauer des Transformators dicht und vor allem auch unempfindlich gegen die beim Trockenprozeß des Transformators auftretenden Veränderungen und Schwindungen des Isolierstoffes des Gefäßes sein müssen.The diverter switch's oil compartment consists of a cylindrical insulating tube, which is attached in a sealed manner at both ends. It is especially important that the connection points between the insulating tube and the metal parts for service life of the transformer tight and, above all, insensitive to the drying process changes occurring in the transformer and shrinkage of the insulating material of the vessel.
Bekannte Lösungen sind recht aufwendig und sehen ihr Ziel vor allem darin, bei der Behebung des Undichtheitsschadens den großen Arbeitsaufwand, wie das Ablassen des Transformatoröles und Öffnen des Transformatorkessels zu vermeiden und durch besondere Anbringung der Dichtungselemente ein rasches Auswechseln derselben und deren stetige Kontrolle von außen zu ermöglichen, wie dies z. B. in der DT-AS 1, 763.569 der Fall ist.Well-known solutions are quite complex and see their goal above all else therein, in the repair of the leak damage the large amount of work, such as avoid draining the transformer oil and opening the transformer tank and the special attachment of the sealing elements means that they can be changed quickly and to enable their constant control from the outside, as z. B. in the DT-AS 1, 763,569 is the case.
Die Erfindung betrifft eine Abdichtungsanordnung für das zylindrische Ölgefäß eines Lastumschalters für Stufenschalter, das im Öl kessel eines Regeltrans= formators untergebracht ist und aus einem Isolierrohr besteht, dessen beiden Stirnflächen je ein Metallflansch eines Deckel- bzw. eines Bodenteiles mit einer Abdichtung zugeordnet sind, wobei erfindungsgemäß jeweils ein Dicht= ring 1 zwischen Stirnfläche des Isolierrohres 2 und dem Metallflansch 3, 4 in einer Ringnut 10 des Metallflansches 3, 4 angeordnet ist.The invention relates to a sealing arrangement for the cylindrical Oil compartment of a diverter switch for tap changer, which is in the oil tank of a control trans = formator is housed and consists of an insulating tube, the two end faces each associated with a metal flange of a cover or a base part with a seal are, according to the invention each having a sealing ring 1 between the end face of the insulating tube 2 and the metal flange 3, 4 arranged in an annular groove 10 of the metal flange 3, 4 is.
In Weiterbildung der Erfindung ist der Metallflansch 3, 4 durch Schrauben 6 mit einem Metallring 5 verbunden, dessen Ringansatz 7 in einer Nut 8 des Isolierrohres 2 eingreift.In a further development of the invention, the metal flange 3, 4 is screwed 6 connected to a metal ring 5, the ring extension 7 in a groove 8 of the insulating tube 2 intervenes.
Die nähere Erläuterung der Erfindung erfolgt an Hand der nachstehenden Zeichnung, in der Fig. 1 eine Längsansicht, teilweise im Schnitt, und Fig. 2 ein Detail der Fig. 1 im Längsschnitt in vergrößertem Maßstab darstellen.The invention is explained in more detail with reference to the following Drawing, in FIG. 1 a longitudinal view, partly in section, and FIG. 2 a Represent detail of Fig. 1 in longitudinal section on an enlarged scale.
Die beiden Dichtringe 1 sind zwischen den Stirnflächen des Isolierzylinders 2 und dem unteren bzw. oberen Metallflansch 3, 4 angeordnet. Die Dichtringe kön= nen für beide Dichtstellen die gleiche Dimension haben und liegen in den speziell für sie dimensionierten Ringnuten 18 in den Metallflanschen 3 bzw. 4. Die Stirnflächen des Isolierzylinders 2 werden nur durch die über die Schrauben 6 gegen die Metallflansche 3 bzw. 4 bezogenen Metallringe 5, die mit ihren Ring= nasen 7 in den Nuten 8 des Isolierzylinders 2 liegen, gepreßt. Damit wird die Dichtung zwischen Isolierzylinder 2 und oberem bzw, unterem Flansch 3 bzw. 4 genau auf das für sie richtige Maß zusammengepreßt. Veränderungen des Iso= lierzylinders in radialer Richtung, sei es während des Betriebes oder während des Trockenprozesses des Transformators, haben durch die Anbringung der Dichtung an den Stirnflächen überhaupt keinen Einfluß auf die Dichtungsgüte.The two sealing rings 1 are between the end faces of the insulating cylinder 2 and the lower and upper metal flange 3, 4, respectively. The sealing rings can = nen have the same dimension for both sealing points and are in the special for them dimensioned annular grooves 18 in the metal flanges 3 and 4. The end faces of the insulating cylinder 2 are only through the screws 6 against the metal flanges 3 or 4 related metal rings 5, which with their ring = lugs 7 in the grooves 8 of the Isolierzylinders 2 lie, pressed. This creates the seal between the insulating cylinder 2 and the upper or lower flange 3 or 4 pressed together exactly to the right size for you. Changes in the insulating cylinder in the radial direction, be it during operation or during the drying process of the transformer, due to the attachment the seal on the end faces has no effect whatsoever on the sealing quality.
Bekanntlich sind die Veränderungen in Längsrichtung (Längenänderung), be= sonders wenn Hartpapier als Isolierzylindermaterial verwendet wird, wesent= lich geringer und werden durch die den Schrauben 6 beigelegten federnden Elemente 9 und natürlich auch durch den Dichtring 1 selbst aufgenommen.It is well known that the changes in the longitudinal direction (change in length), especially when hard paper is used as the insulating cylinder material, essential Lich lower and are due to the resilient elements enclosed with the screws 6 9 and of course also taken up by the sealing ring 1 itself.
L e e r s e i t eL e r s e i t e
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT740575A AT341624B (en) | 1975-09-29 | 1975-09-29 | SEALING ARRANGEMENT FOR A CYLINDRICAL OLD VESSEL OF A LOAD CHANGEOVER FOR TAP SWITCHES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2640807A1 true DE2640807A1 (en) | 1977-04-07 |
Family
ID=3595725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762640807 Ceased DE2640807A1 (en) | 1975-09-29 | 1976-09-10 | Transformer tap changer oil tank seal - has special clamping rings holding ends onto cylinder wall |
Country Status (2)
| Country | Link |
|---|---|
| AT (1) | AT341624B (en) |
| DE (1) | DE2640807A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2568052A1 (en) * | 1984-07-18 | 1986-01-24 | Reinhausen Kg Maschf | Oil tank for transformer tap changer |
| EP0424631A1 (en) * | 1989-10-24 | 1991-05-02 | Maschinenfabrik Reinhausen Gmbh | Cylindrical on-load tap changer for step-down transformers |
| EP3761332A1 (en) * | 2019-07-01 | 2021-01-06 | ABB Power Grids Switzerland AG | An on-load tap changer including an insulation barrier |
| EP4310875A1 (en) * | 2022-07-22 | 2024-01-24 | Hitachi Energy Ltd | A tap changer arrangement and a transformer arrangement comprising the tap changer arrangement |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3234213C2 (en) * | 1982-09-15 | 1985-10-17 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | Cylindrical oil compartment for tap changers of tap transformers |
| AT409563B (en) * | 1999-02-24 | 2002-09-25 | Reinhausen Maschf Scheubeck | ARRANGEMENT FOR SEALING A CYLINDRIC OIL VESSEL OF A SWITCH |
| BG65709B1 (en) * | 2004-03-23 | 2009-07-31 | "Хюндай Хеви Индъстрис Ко. България" Ад | Vessel for power switch of a step voltage regulator |
-
1975
- 1975-09-29 AT AT740575A patent/AT341624B/en not_active IP Right Cessation
-
1976
- 1976-09-10 DE DE19762640807 patent/DE2640807A1/en not_active Ceased
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2568052A1 (en) * | 1984-07-18 | 1986-01-24 | Reinhausen Kg Maschf | Oil tank for transformer tap changer |
| EP0424631A1 (en) * | 1989-10-24 | 1991-05-02 | Maschinenfabrik Reinhausen Gmbh | Cylindrical on-load tap changer for step-down transformers |
| EP3761332A1 (en) * | 2019-07-01 | 2021-01-06 | ABB Power Grids Switzerland AG | An on-load tap changer including an insulation barrier |
| WO2021001275A1 (en) | 2019-07-01 | 2021-01-07 | Abb Power Grids Switzerland Ag | An on-load tap changer including an insulation barrier |
| KR20220008355A (en) * | 2019-07-01 | 2022-01-20 | 히타치 에너지 스위처랜드 아게 | On-load tap-changer with insulating barrier |
| CN114041198A (en) * | 2019-07-01 | 2022-02-11 | 日立能源瑞士股份公司 | On-load tap changer comprising an insulating shield |
| CN114041198B (en) * | 2019-07-01 | 2024-03-08 | 日立能源有限公司 | On-load tap changer comprising an insulating shield |
| KR102705593B1 (en) * | 2019-07-01 | 2024-09-10 | 히타치 에너지 리미티드 | On-load tap changer with insulating barrier |
| EP4310875A1 (en) * | 2022-07-22 | 2024-01-24 | Hitachi Energy Ltd | A tap changer arrangement and a transformer arrangement comprising the tap changer arrangement |
| WO2024017943A1 (en) | 2022-07-22 | 2024-01-25 | Hitachi Energy Ltd | A tap changer arrangement and a transformer arrangement comprising the tap changer arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA740575A (en) | 1977-06-15 |
| AT341624B (en) | 1978-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |