EP0383988B1 - Hochspannungsdurchführung für ölgekühlte elektrische Geräte - Google Patents

Hochspannungsdurchführung für ölgekühlte elektrische Geräte Download PDF

Info

Publication number
EP0383988B1
EP0383988B1 EP89104925A EP89104925A EP0383988B1 EP 0383988 B1 EP0383988 B1 EP 0383988B1 EP 89104925 A EP89104925 A EP 89104925A EP 89104925 A EP89104925 A EP 89104925A EP 0383988 B1 EP0383988 B1 EP 0383988B1
Authority
EP
European Patent Office
Prior art keywords
voltage
voltage bushing
screen
fixed resistor
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
EP89104925A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0383988A1 (de
Inventor
Walter Dr.-Ing. Müller
Wolfgang Dipl.-Ing. Maxwitat
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT89104925T priority Critical patent/ATE93081T1/de
Publication of EP0383988A1 publication Critical patent/EP0383988A1/de
Application granted granted Critical
Publication of EP0383988B1 publication Critical patent/EP0383988B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements

Definitions

  • the invention relates to a high-voltage bushing for oil-cooled electrical devices, in particular high-voltage machine and mains transformers, in which components for the electrical and mechanical connection of the end of a feed-through conductor bolt to a high-voltage connecting lead lie in a cup-shaped shield.
  • Such a high-voltage bushing is known from DE-A-25 54 460.
  • This known implementation is connected to the end of the winding rejection to be connected via screw connections and flexible conductor sections. To avoid externally effective inhomogeneities of the electrical field, this screw connection together with the flexible conductor sections is completely immersed in a cup-shaped shield in the operating state.
  • DE-A-28 42 341 also already discloses an attenuator for cables for damping high-frequency vibrations emanating from switchgear assemblies when hitting transformers, for example in which a voltage-dependent resistor, a low-induction fixed resistor and a choke winding are provided in a concentric arrangement from the inside to the outside and electrically connected in parallel to one another.
  • the separate arrangement of such attenuators for cables before the input of high-voltage transformers requires an even larger space than results from the enlargement of transformer dimensions as a result of wiring the windings with ZnO elements.
  • the invention is therefore based on the object of creating a space-saving arrangement for resonance-sensitive high-voltage devices, such as, for example, mains or machine transformers, by which high-frequency vibrations caused by switching operations or the like are damped to such an extent that damage to the connected devices can be ruled out.
  • resonance-sensitive high-voltage devices such as, for example, mains or machine transformers
  • the object of the invention is achieved with a high-voltage bushing of the type mentioned in the introduction that a low-induction fixed resistor forming the end of the connecting conductor is spatially and electrically located between a chalice-shaped shield and a similar chalice-shaped shielding pot and that the load current is electrically parallel and spatially coaxial with the fixed resistor leading ironless choke winding is provided which includes the shielding pot at one end and the shielding at the other end.
  • the choke winding is wound from two radially superposed electrically parallel conductors which are spatially crossed out in the middle of the winding, and the fixed resistor consists of a stack of resistance disks lying against one another in the axial direction.
  • High-voltage bushings designed in accordance with the invention are very advantageous because they provide practically no particular space requirement by adding an attenuator to reliably protect the devices that are connected to them from high-frequency vibrations that resonate.
  • the relatively complex wiring of individual components of the devices to be protected can be dispensed with, as can attenuators to be set up next to these devices in special housings.
  • a high-voltage bushing 2 with a bushing conductor pin 3 is installed in the cover 1 of a transformer tank which is not shown in detail and is completely filled with oil and closed on all sides.
  • the lower end of the high-voltage bushing 2 dips into a goblet-shaped shield 4 together with the lower end of the bushing conductor pin 3.
  • the lower end of the feed-through conductor pin 3 carries flexible connecting leads 5, not shown, of which several are electrically connected in parallel and are evenly distributed over the circumference and connect the lead-through conductor stud 3 galvanically to a connecting plate 6 and to a winding end 7 of a choke winding 8.
  • connection plate 6 Coaxial to the axis of the high-voltage bushing 2, the connection plate 6 continues below the goblet-shaped shield 4 in a low-induction fixed resistor from a stack of resistance disks 9 lying against one another in the axial direction.
  • the resistance disks 9 lie concentrically within the choke winding 8. Both the choke winding 8 and the stack of the resistance disks 9 are supported on a goblet-shaped shielding pot 10, which carries an inclined chimney 11 for receiving a winding rejection 12.
  • the choke winding 8 is wound from two radially one above the other electrically connected parallel conductors, which are preferably represented by copper cables with a circular cross section and paper wrapping as insulation. To ensure a uniform current load on both conductors, they are crossed out in the middle of the choke winding 8 by cross-out conductors 16. The ends of the choke winding 8 are supported on press rings 13.
  • the fixed resistor located within the choke winding consists of a stack of nine resistance disks 9, of which only the middle one is spaced from the adjacent resistance disks by short supports 14.
  • the ends of the middle resistance disk 9 are electrically connected to the cross-out conductors 16 in the middle of the choke winding 8 via the supports 14 via potential bridges 15. Mutual voltage control of the fixed resistor and the choke winding 8 is thereby forced.
  • the high-voltage bushing 2 and the resistor disks 9 connected downstream thereof and the choke winding 8 are loaded with a low-frequency current, for example of 50 or 60 Hz.
  • the choke winding 8 drops significantly less than 0.1 o / oo of the operating voltage, and the resistance disks 9 contribute practically nothing to the current carrying, since their resistance is approximately 10 f times the resistance of the choke winding 8.
  • the voltage supplied via the high-voltage bushing 2 is consequently passed on to the winding lead-out 12 with almost no voltage drop.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Insulating Of Coils (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Transformer Cooling (AREA)
  • Organic Insulating Materials (AREA)
  • Rectifiers (AREA)
EP89104925A 1989-02-20 1989-03-20 Hochspannungsdurchführung für ölgekühlte elektrische Geräte Expired - Lifetime EP0383988B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89104925T ATE93081T1 (de) 1989-02-20 1989-03-20 Hochspannungsdurchfuehrung fuer oelgekuehlte elektrische geraete.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3905173 1989-02-20
DE3905173 1989-02-20

Publications (2)

Publication Number Publication Date
EP0383988A1 EP0383988A1 (de) 1990-08-29
EP0383988B1 true EP0383988B1 (de) 1993-08-11

Family

ID=6374519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104925A Expired - Lifetime EP0383988B1 (de) 1989-02-20 1989-03-20 Hochspannungsdurchführung für ölgekühlte elektrische Geräte

Country Status (4)

Country Link
EP (1) EP0383988B1 (ja)
JP (1) JP2805690B2 (ja)
AT (1) ATE93081T1 (ja)
DE (1) DE58905274D1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824606C2 (de) * 1998-06-02 2001-02-08 Siemens Ag Vorrichtung zur Begrenzung von Überspannungen für Transformatoren
EP2991095A1 (en) 2014-08-25 2016-03-02 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. High voltage feedthrough assembly, electron diffraction apparatus and method of electrode manipulation in a vacuum environment

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101373659B (zh) * 2007-08-20 2012-08-22 特变电工股份有限公司 一种电抗器线圈的出线装置及含有该出线装置的铁心电抗器
EP2442321B1 (de) * 2010-10-15 2012-12-05 ABB Technology AG Durchführung für Hochspannungsausleitungen in Öltransformatoren
EP2924698B1 (de) * 2014-03-27 2018-11-21 ABB Schweiz AG Öl-Öl-Durchführung und Öltransformator
EP3093938B1 (de) * 2015-05-12 2021-07-14 Siemens Energy Global GmbH & Co. KG Hochspannungs-durchführungssystem
CN105845332B (zh) * 2016-04-28 2017-10-27 绵阳启明星电力设备有限公司 油浸式变压器引线固定装置及其引线的固定方法
EP3618086B1 (en) 2018-08-30 2021-04-28 ABB Power Grids Switzerland AG Shield for a terminal of a high-voltage electrical device and method for operating the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL161291C (nl) * 1975-01-17 1980-01-15 Smit Nijmegen Bv Transformator, voorzien van een vat met een losmaakbaar daaraan bevestigde doorvoerisolator met aansluit- geleider.
DE2842341C2 (de) * 1978-09-28 1983-01-20 Transformatoren Union Ag, 7000 Stuttgart Dämpfungsglied zum Einbau in Hochspannungskabelnetze
DD211665A1 (de) * 1982-11-17 1984-07-18 Transform Roentgen Matern Veb Fluessigkeitsgekuehlte hochstromdurchfuehrungsanordnung
DE3563575D1 (en) * 1984-05-04 1988-08-04 Siemens Ag High-tension transformer winding with regulated voltage distribution
DE3540637A1 (de) * 1985-11-15 1987-05-21 Transformatoren Union Ag Transformator mit sicherungseinrichtung
DE3543584A1 (de) * 1985-12-10 1987-06-11 Volta Werke Electricitaet Transformator mit sicherungseinrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824606C2 (de) * 1998-06-02 2001-02-08 Siemens Ag Vorrichtung zur Begrenzung von Überspannungen für Transformatoren
EP2991095A1 (en) 2014-08-25 2016-03-02 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. High voltage feedthrough assembly, electron diffraction apparatus and method of electrode manipulation in a vacuum environment

Also Published As

Publication number Publication date
JP2805690B2 (ja) 1998-09-30
EP0383988A1 (de) 1990-08-29
JPH02262312A (ja) 1990-10-25
DE58905274D1 (de) 1993-09-16
ATE93081T1 (de) 1993-08-15

Similar Documents

Publication Publication Date Title
EP0383988B1 (de) Hochspannungsdurchführung für ölgekühlte elektrische Geräte
EP0285895B1 (de) Hochspannungsisolationsanordnung fuer Transformatoren und Drosselspulen, insbesondere zur Hochspannungs-Gleichstrom-Uebertragung (HGUE)
EP0678954A1 (de) Metallgekapselte gasisolierte Schaltanlage
EP1529296B1 (de) Wicklungsanordnung
DE69709866T2 (de) Filterausrüstung
DE19542529C1 (de) Festdrosselanordnung für die Prüfung von Hochspannungsanlagen
EP0141296A1 (de) Schaltungsanordnung für Leistungsgrosstransformatoren
EP0768684B1 (de) Ringkernstromwandler zum Einbau in eine metallgekapselte Hochspannungsschaltanlage
EP0810815B1 (de) Röntgeneinrichtung
DE2842341C2 (de) Dämpfungsglied zum Einbau in Hochspannungskabelnetze
DE60030496T2 (de) Elektrostatischer kapazitiver Spannungsteiler
EP3764376A1 (de) Kompensationseinrichtung für stromversorgungsnetze
EP0163907B1 (de) Hochspannungswicklung mit gesteuerter Spannungsverteilung für Transformatoren
EP0257291A1 (de) Schaltungsanordnung für Leistungsgrosstransformatoren
DE4311125B4 (de) EMV-Filter für Anlagen, Systeme und geschirmte Räume
DE478394C (de) Antennenanlage
DE2617542A1 (de) Ankopplungseinrichtung zum ankoppeln von im phasenseil von mittelspannungsleitungen isoliert verlaufenden doppeladern zur nachrichtenuebertragung
EP1183696B1 (de) Kapazitiv gesteuerte hochspannungswicklung
EP0658271B1 (de) Stromwandler
DE3908841C2 (ja)
EP0162965B1 (de) Schaltungsanordnung zur Bedämpfung von Ein- und Ausschaltschwingungen, in einer Schaltanlage
DE19510659C1 (de) Anordnung zur Ankopplung eines Rundsteuersenders
DE19537832C2 (de) Drosselspulensystem zum Anschluß eines Stromrichters
DE19824606C2 (de) Vorrichtung zur Begrenzung von Überspannungen für Transformatoren
WO2016070907A1 (de) Impedanzanordnung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR LI NL SE

17P Request for examination filed

Effective date: 19900919

17Q First examination report despatched

Effective date: 19921022

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR LI NL SE

REF Corresponds to:

Ref document number: 93081

Country of ref document: AT

Date of ref document: 19930815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 58905274

Country of ref document: DE

Date of ref document: 19930916

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 89104925.6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20020220

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20020308

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020312

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20020321

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020326

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020521

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20020610

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030321

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030331

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030331

BERE Be: lapsed

Owner name: *SIEMENS A.G.

Effective date: 20030331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031001

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031001

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031127

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20031001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST