EP0800186B1 - Durchführung - Google Patents

Durchführung Download PDF

Info

Publication number
EP0800186B1
EP0800186B1 EP97104725A EP97104725A EP0800186B1 EP 0800186 B1 EP0800186 B1 EP 0800186B1 EP 97104725 A EP97104725 A EP 97104725A EP 97104725 A EP97104725 A EP 97104725A EP 0800186 B1 EP0800186 B1 EP 0800186B1
Authority
EP
European Patent Office
Prior art keywords
pin
interior region
transformer
interior
bushing according
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
Application number
EP97104725A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0800186A3 (zh
EP0800186A2 (de
Inventor
Helmut Frielingsdorf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HSP Hochspannungsgeraete Porz GmbH
Original Assignee
HSP Hochspannungsgeraete Porz GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HSP Hochspannungsgeraete Porz GmbH filed Critical HSP Hochspannungsgeraete Porz GmbH
Publication of EP0800186A2 publication Critical patent/EP0800186A2/de
Publication of EP0800186A3 publication Critical patent/EP0800186A3/xx
Application granted granted Critical
Publication of EP0800186B1 publication Critical patent/EP0800186B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements

Definitions

  • the invention relates to an implementation for a liquid-filled Transformer.
  • From DE-PS 650 623 is a bushing insulator with two oil-filled interiors known through which a bolt passed is.
  • the two interiors are through a connecting channel connected together within the bolt.
  • the Connection channel is used to establish a connection for the two liquids in the interior.
  • the bolt is firmly attached to the bushing insulator.
  • the invention has for its object to carry out Specify which is as oil-free as possible and with little installation effort allows a simple way of venting, without the need for additional ventilation devices.
  • the object is achieved according to the invention with a Implementation according to claim 1.
  • the separation area between the the interior of the transformer fluid preferably borders both interior areas near the transformer tank wall from. This procedure is easy to operate because it is very easy to assemble. With the help of movable bolt, several functions are fulfilled. In addition, it is only a small part, in particular only in the area inside the transformer, with liquid filled so that a required oil catch basin is not significantly exceeds the boiler dimensions.
  • the bolt has a sealant that starts from the first position in the separation area between the two interior areas are arranged on the bolt and a sealing connection between the inner wall of the first inner region and the Form bolts. In this way there is a liquid leak avoided. A complex internal processing of the implementation is not necessary.
  • the sealant can be removed Bolts can be arranged, making it easy to manufacture given is.
  • a simple design of the sealant is given if this from an O-ring guided in a circumferential groove of the bolt are formed.
  • the venting means can be used the sealing means form a structural unit, the circumferential groove surrounds the bolt at an angle, such that in the second Position part of the O-ring arranged in the second interior is and releases the vent.
  • the interior is simple due to the simple operation on the bolt ventable from the outside.
  • the venting means can comprise a venting channel, which forms the ventilation opening in the second position.
  • the ventilation opening can be specified the vent opening depending on the operating situation of the implementation located at the highest point of the interior is. This ensures complete ventilation of the interior possible. It is favorable if the venting means on Bolts are arranged. This also makes them like the sealant described above, easy to manufacture.
  • the second position of the bolt can optionally by a Longitudinal displacement or rotation of the bolt are generated.
  • a longitudinal displacement is preferred. This is the second Position within the scope of the adjustability given with the bolt anyway can be generated.
  • the bolt can preferably be inserted into the end of the insulating body. In this way, easy assembly - starting from a transformer-side connection of the bushing - possible.
  • the bolt can have a third position in which it end, in particular transformer side, from the insulating body protrudes in such a way that it connects with one of the electrical Head is connectable. This creates an assembly position in which the implementation simply to the assigned Head is connectable.
  • the opening can at least be in the second inner region sometimes larger diameter than in the first interior exhibit.
  • the Sealing and venting means particularly simple.
  • the implementation can be in the area of the separation area between the two inner areas fasteners, in particular have a flange for attachment to the transformer. This is the first inner area filled with liquid inside the transformer tank. A survival the layout of the transformer does not give making the oil catchment basin only for the transformer layout must be measured.
  • FIG. 1 shows an implementation 1. It has an insulating body 3, which has a central through opening 5, in a bolt 7 is arranged.
  • the insulating body 3 has a customary shape, namely a rotationally symmetrical shape with a reinforced middle part in the area of its flange 9.
  • the flange 9 is in usually - like the boiler of the transformer - metallic.
  • the insulating body 3 can be made of known materials be made according to the state of the art, e.g. oil impregnated Paper, cast resin mixtures and / or porcelain.
  • the centrally arranged bolt 7 is movable, in particular longitudinally displaceable, and serves to connect a transformer side Line 11 at its first end 13a with a not shown line at its second end 13b.
  • the bolt 7 can be mounted at the end in the opening 5 of the Insulator 3 are introduced. This is preferably done on the transformer side, i.e. from the end 15 of the insulating body 3 forth.
  • the opening 5 has a first inner region 17 and one axially adjoining second inner region 19.
  • the the first inner region 17 facing the transformer is connected the cooling or insulating agent of the transformer, in particular with oil, fillable.
  • the bolt 7 points to delimit the two Interior areas 17 and 19 sealant.
  • the sealing means are formed by an O-ring 21, which is inserted in a circumferential groove 23 of the bolt 7.
  • the O-ring 21 forms a sealing connection between the Inner wall of the first inner region 17 and the bolt 7.
  • This is a movable seal between the two Interiors 17 and 19 given.
  • FIG 1 is there a first position shown, the normal operating position corresponds.
  • the sealants limit those in the first interior 17 nearby transformer liquid the transformer tank wall opposite the second interior 19 from.
  • the separation area between the two inner areas 17 and 19 lies approximately in the area of the flange 9 approximately a size distribution of the two inner regions 17 and 19 given.
  • the first inner region 17 is preferably opposite the second interior 19 small, so that the implementation 1 only a small interior filled with insulating liquid having.
  • the ratio of the length of the first inner region 17 to the second inner region 19 is approximately 1: 3 in the shown Execution. There are also conceivable versions in which the Inner area 17 is much smaller.
  • first interior 17 usually liquid.
  • this first interior must 17 are vented.
  • ventilation means intended These form in the present embodiment a unit with the sealants.
  • the ventilation function if the second interior 19 only partially, in particular in the area of the vent, one opposite the first interior 17 has an enlarged diameter. If necessary, it is also sufficient that in this area only a groove or a cavity is provided which is released as a vent.
  • FIG. 3 shows an alternative embodiment of the venting means, only the area of detail III from FIG. 2 in the second position is shown.
  • a ventilation channel 27 is provided, which is arranged in the bolt 3 is.
  • the ventilation channel 27 serves as a bridge for another arranged in a further circumferential groove 29 O-ring 31.
  • the ventilation channel 27 serves as a ventilation opening, the way for gas between the first interior 17 and the expanded interior 19 releases.
  • This second position is also due to a longitudinal displacement of the bolt 7 reachable.
  • the release of the vent opening and thus reaching the second position by turning the bolt 7 is accessible.
  • the ventilation duct 27 can be arranged in the circumferential direction, the latter then expanding the first inner region 17 Part of the second interior 19 releases.
  • the sealing and venting means according to the prior art conceivable for use in high voltages and corresponding temperatures are.
  • the new implementation is preferably used for liquid-filled Medium and high voltage transformers. Individual features and details are a matter of course the shown versions with each other and with features of the prior art can be combined without the basic idea the idea is left. Essential for the new invention is that the bushing has a movable bolt, which also controls the venting means allowed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)
  • Transformer Cooling (AREA)
EP97104725A 1996-04-01 1997-03-19 Durchführung Expired - Lifetime EP0800186B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19612933 1996-04-01
DE19612933A DE19612933C1 (de) 1996-04-01 1996-04-01 Durchführung

Publications (3)

Publication Number Publication Date
EP0800186A2 EP0800186A2 (de) 1997-10-08
EP0800186A3 EP0800186A3 (zh) 1997-10-29
EP0800186B1 true EP0800186B1 (de) 2001-05-30

Family

ID=7790102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104725A Expired - Lifetime EP0800186B1 (de) 1996-04-01 1997-03-19 Durchführung

Country Status (2)

Country Link
EP (1) EP0800186B1 (zh)
DE (2) DE19612933C1 (zh)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE650623C (de) * 1933-07-02 1937-09-27 Siemens Schuckertwerke Akt Ges Durchfuehrungsisolator fuer elektrische Maschinen und Apparate aus keramischem Stoffmit einer Isolieroelfuellung und einem als OElstandsanzeiger und OElausgleichsgefaess dienenden Behaelter
DE1081533B (de) * 1953-11-14 1960-05-12 Calor Emag Elektrizitaets Ag Hochspannungsdurchfuehrung
US3936592A (en) * 1975-01-02 1976-02-03 Westinghouse Electric Corporation Electrical bushing having a central conductor with large planar terminal portions at each end
DE7822417U1 (de) * 1978-07-27 1978-11-23 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Kondensator-Hochspannungsdurchführung mit einer ölführungs- und Entlüftungsbohrung im Flansch
JPS57180108A (en) * 1981-04-29 1982-11-06 Mitsubishi Electric Corp Bushing

Also Published As

Publication number Publication date
DE59703634D1 (de) 2001-07-05
EP0800186A3 (zh) 1997-10-29
EP0800186A2 (de) 1997-10-08
DE19612933C1 (de) 1997-12-04

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