EP0600233A1 - Traversé avec supports d'électrode spéciaux en particulier pour haute tension - Google Patents

Traversé avec supports d'électrode spéciaux en particulier pour haute tension Download PDF

Info

Publication number
EP0600233A1
EP0600233A1 EP93117563A EP93117563A EP0600233A1 EP 0600233 A1 EP0600233 A1 EP 0600233A1 EP 93117563 A EP93117563 A EP 93117563A EP 93117563 A EP93117563 A EP 93117563A EP 0600233 A1 EP0600233 A1 EP 0600233A1
Authority
EP
European Patent Office
Prior art keywords
insulating
bushing
field control
gas
tube
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.)
Withdrawn
Application number
EP93117563A
Other languages
German (de)
English (en)
Inventor
Peter Rost
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.)
Ritz Messwandler GmbH and Co KG
Original Assignee
Ritz Messwandler GmbH and Co KG
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 Ritz Messwandler GmbH and Co KG filed Critical Ritz Messwandler GmbH and Co KG
Publication of EP0600233A1 publication Critical patent/EP0600233A1/fr
Priority to AT94113592T priority Critical patent/ATE151560T1/de
Priority to ES94113592T priority patent/ES2100609T3/es
Priority to EP94113592A priority patent/EP0651400B1/fr
Priority to DE59402363T priority patent/DE59402363D1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/28—Capacitor type

Definitions

  • the invention relates to an implementation, in particular for high voltages, for connecting an electrical device insulated with gas, such as e.g. a transformer, a choke coil, a transducer, a capacitor or a switchgear, with a connection point lying in atmospheric air, with at least one tubular field control electrode within a gas-filled coupling insulator.
  • gas such as e.g. a transformer, a choke coil, a transducer, a capacitor or a switchgear
  • a cylindrical control capacitor consisting of a plurality of control electrodes encloses a cylindrical conductor.
  • the capacitor is attached to a flange with its lowermost electrode in such a way that it forms a first chamber in its interior, which is filled with sulfur hexafluoride (SF6) under high pressure as the insulating gas.
  • SF6 sulfur hexafluoride
  • Outside the condenser is a second chamber filled with the same gas under low pressure.
  • This known gas-insulated bushing therefore has an explosion-proof structure in which the porcelain union insulator is not directly subjected to the high pressure, as long as the seal between the electrodes of the capacitor and the perforated disks electrically insulating the individual electrodes withstand the excess pressure of the gas.
  • control electrodes are gripped at both ends by ring-shaped terminating electrodes and attached directly to each other by means of conical perforated discs made of cast resin, so that a cone lengthening the creepage distance is created and no creeping discharges occur due to the existing potential differences.
  • a disadvantage of the known implementation is that complicated brackets for the control electrodes are necessary to avoid creeping discharges. Since the distance between the high-voltage electrode and the control electrode is bridged by insulating materials, the rules for pure gas insulation no longer exist in the space of the bushing which is exposed to high field strength, and relatively large distances between the electrodes are required.
  • DE 28 00 208 describes a "ceramic envelope insulator with compressed gas filling, in particular for electrical systems and devices".
  • This envelope insulator has in its interior a gas-permeable envelope which essentially contains the compressed gas filling, by means of which damage to the surroundings is to be avoided if the porcelain envelope bursts.
  • the envelope insulator is attached to a plate in a gas-tight manner and encloses a control electrode also attached there, through which a conductor rod enters a housing below the plate.
  • the conductor bar also emerges at the upper end of the envelope insulator through another plate.
  • DE 11 98 888 discloses a "high-voltage bushing" in which a current conductor is guided through an insulating hollow body filled with gaseous or liquid insulating agent and the field distribution is influenced by an electrode which is conductively connected to a grounded socket and surrounds the bushing conductor in the insulating body in a ring.
  • the two-part insulating hollow body, together with metal pipes, is flanged to the grounded socket.
  • the arrangement of these pairs of ring electrodes and the shape of the insulating hollow body is said to have a favorable influence on the stress in the axial direction.
  • DE 37 40 86 describes an "electrical bushing insulator" in which electrodes are designed as metal coatings on insulating bodies. Furthermore, DE 22 05 035 also discloses the application of a conductive coating to the surface of cylindrical insulating parts in order to form electrodes in this way.
  • the geometrical shape and the position of the control electrodes is chosen so that the potential distribution on the surface of the bushing should be approximately linear.
  • the disadvantage here is that the ring disks in this arrangement are not in a field-poor area, so that there is no pure gas insulation in the highly stressed area. Since the washers are also connected with (metallic) screws, which are used to fasten the jacket parts to one another, the potential of the corresponding control electrode is drawn to that of the insulator surface, so that it is exposed to increased stress.
  • the invention has for its object to provide a implementation of the type mentioned, which has significantly improved operational reliability, in particular dielectric strength, even with small dimensions.
  • the at least one field control electrode is formed by conductive sections on an end facing the potential-carrying area of the implementation of at least one insulating tube and the at least one insulating tube is arranged coaxially around at least one implementation conductor and by at least one holder is held on one side at its end on the earth potential side outside the area exposed to high field strength.
  • the brackets of the insulating tubes are each preferably formed by an insulating washer.
  • Each holder can be formed by two spaced-apart individual holders.
  • brackets are designed as flat disks made of insulating material and preferably have a few openings, this results in a shape that is favorable in terms of production technology, which saves material and thus costs.
  • the openings allow drying and impregnation in the space between the insulating washers.
  • the insulating tubes are preferably held with the brackets on a support tube coaxially surrounding the lead-through conductor.
  • the control electrodes can be attached particularly precisely.
  • the concentric insulating tubes can be attached to each other by spacer rings be, but this generally results in larger position tolerances, since manufacturing tolerances add up.
  • the insulating tubes are longer than the control electrodes, and preferably the insulating tube with the larger diameter (first insulating tube) is longer than the tube with the smaller diameter (second insulating tube).
  • the distance between the equipotential lines can be influenced favorably if the control electrodes are provided with a bead-shaped end.
  • the field control electrode preferably serves as an intermediate potential control electrode.
  • 1 denotes a transducer, the upper housing head 2 of which is designed with a cover 3 as a cast aluminum housing and which has the potential of a current conductor 4 during operation.
  • the current conductor 4 is enclosed in the interior of the housing head 2 by the core of the transducer 1, the core shield of which is identified by 11.
  • a current-carrying connection is made from the coil of the transducer 1 by means of the bushing according to the invention to an external location lying in atmospheric air, ie to a termination box 5 which is mounted on a base 9 lying at earth potential.
  • the potential difference between the housing head 2 and the base 9, which is at earth potential, is bridged by a coupling insulator 6, which thus together with the housing head 2, the housing cover 3 and the base 9 forms a gas-tight space which is advantageously filled with sulfur hexafluoride (SF6) as the insulating gas is and can also be under pressure to increase the insulation effect.
  • SF6 sulfur hexafluoride
  • the housing head 2 is continued down into the region of the union insulator 6 with a high-voltage electrode 20, the bead-shaped end of which is designated by 22.
  • a first field control electrode 23 is arranged concentrically with the high-voltage electrode 20, the upper end of which is identified by 21 and the lower end is identified by 24.
  • the ends 21, 24 are also bulged to avoid local increases in field strength.
  • the first field control electrode 23 is designed as a conductive layer on a first insulating tube 25 made of insulating material, which is only held on one side in an almost potential-free space at its lower end by two first insulating disks 14, 14 'on a support tube 7 surrounding the lead-through conductor.
  • the first insulating disks 14, 14 ' are firmly connected to the first insulating tube 25.
  • These insulating washers are axially fixed on the support tube 7 by conical fastening rings 12 which engage in corresponding recesses in the first insulating washers 14, 14 '.
  • the support tube 7 is fixed to the base 9 by a fastening part 8.
  • the first field control electrode 23 partially enveloping the first insulating tube 25 is fastened at the lower end to the support tube 7 by means of the first insulating disks 14, 14 '. Therefore, even with changing temperatures, the first insulating tube 25 can freely expand upwards.
  • the positioning of the first field control electrode 23 thus takes place outside of the area with high field strength on the high-voltage electrode 20. For this area with particularly high field strengths, there is therefore pure gas insulation.
  • Openings 15 are provided in the first insulating disks 14, 14 ', which enable easier drying and impregnation of the space between the insulating disks.
  • the high-voltage transducer according to FIG. 2 has a second field control electrode 33, the upper end of which is identified by reference number 31, while the lower end is designated by reference number 34.
  • the second field control electrode 33 is applied as a metallically conductive layer to a second insulating tube 35.
  • the second insulating tube 35 like the first insulating tube 25, is fastened on the support tube 7 by means of second insulating disks 16, 16 'at its lower end. Since the lower second insulating disk 16 ′ of the second field control electrode 33 located further inside and the upper first insulating disk 14 of the first field control electrode 23 located further outside, the two insulating pipes are axially fixed by only two conical fastening rings 12.
  • the insulating tubes 25, 35 are telescopically inserted into one another, so that the first insulating tube 25 for the first field control electrode 23 with the larger diameter is longer than the second insulating tube 35 for the second field control electrode 33 with the smaller diameter.
  • the inner second insulating tube 35 extends in the axial direction to the lower end of the first insulating tube 25.
  • the first insulating disks 14, 14 ' serve as common holders for both insulating tubes, the conical fastening rings 12 in turn serve to axially fix the insulating washers.
  • control electrodes can also be provided.
  • the diameter and the length of the union insulator which is preferably made of glass fiber reinforced plastic, can be reduced further, or if the same remains the same Dimensions can be implemented for higher voltage ranges.
  • Figure 4 shows a fourth embodiment of the invention.
  • the design according to FIG. 4 is a voltage converter.
  • a support tube 7 is provided, which can contain a lead-through conductor and is surrounded by the first insulating tube 25.
  • the field control electrode 23 is applied to the end of the insulating tube facing the potential-carrying area, the potential-side end of which is designated by 21 and the end of which is remote from the potential is designated by 24.
  • the insulating tube is also arranged coaxially around the support tube 7 and is held on the support tube 7 by insulating washers 14, 14 '(holder) at its end on the earth potential side.
  • two fastening rings 12 serve to axially fix the insulating washers.
  • the high-voltage electrode 20 is arranged coaxially with the field control electrode 23. The end of the bushing on the earth potential side is closed with the base 9.
  • a plurality of insulating tubes with field control electrodes can in turn be arranged concentrically, as is shown in FIG. 2.
  • the designs according to the invention have particularly great advantages over the known bushings.
  • Through the Construction according to the invention provides a bushing with gas insulation which avoids the disadvantages of mixed insulation, in particular the risk of creeping discharges on spacer insulators. The operational reliability of this implementation is therefore advantageously increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)
EP93117563A 1992-11-30 1993-10-29 Traversé avec supports d'électrode spéciaux en particulier pour haute tension Withdrawn EP0600233A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT94113592T ATE151560T1 (de) 1993-10-29 1994-08-31 Durchführung, insbesondere für hohe spannungen mit spezieller elektrodenhalterung
ES94113592T ES2100609T3 (es) 1993-10-29 1994-08-31 Realizacion, en especial para altas tensiones, con soporte especial de electrodos.
EP94113592A EP0651400B1 (fr) 1993-10-29 1994-08-31 Traversée avec supports d'électrode spéciaux en particulier pour haute tension
DE59402363T DE59402363D1 (de) 1993-10-29 1994-08-31 Durchführung, insbesondere für hohe Spannungen mit spezieller Elektrodenhalterung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4240118A DE4240118C1 (de) 1992-11-30 1992-11-30 Durchführung, insbesondere für hohe Spannungen mit spezieller Elektrodenhalterung
DE4240118 1992-11-30

Publications (1)

Publication Number Publication Date
EP0600233A1 true EP0600233A1 (fr) 1994-06-08

Family

ID=6473940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93117563A Withdrawn EP0600233A1 (fr) 1992-11-30 1993-10-29 Traversé avec supports d'électrode spéciaux en particulier pour haute tension

Country Status (4)

Country Link
US (1) US5548081A (fr)
EP (1) EP0600233A1 (fr)
CA (1) CA2109852A1 (fr)
DE (1) DE4240118C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018205705A1 (de) 2018-04-16 2019-10-17 Siemens Aktiengesellschaft Messverfahren und Hochspannungsmesswandler mit Clean Air
WO2020048720A1 (fr) 2018-09-07 2020-03-12 Siemens Aktiengesellschaft Agencement et procédé de décharge de potentiel dans la technique liée aux hautes tensions

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE151560T1 (de) * 1993-10-29 1997-04-15 Ritz Messwandler Kg Durchführung, insbesondere für hohe spannungen mit spezieller elektrodenhalterung
US6218627B1 (en) * 1998-02-04 2001-04-17 Hitachi, Ltd. Bushing
US6713071B1 (en) * 1998-10-22 2004-03-30 Pfizer Inc. Proteins from actinobacillus pleuropneumoniae
DE19912410A1 (de) * 1999-03-19 2000-10-12 Reinhausen Maschf Scheubeck Meßverfahren für eine Hochspannungsdurchführung und geeignete Meßanordnung
NL1020224C2 (nl) * 2002-03-21 2003-09-23 Holec Holland Nv Boogbestendige kast voor schakelsysteem.
PL373706A1 (en) * 2002-04-08 2005-09-05 Kaneka Corporation Novel promoters
DE10344165A1 (de) * 2003-09-22 2005-04-28 Duromer Kunststoffverarbeitung Isolieranordnung mit Feldsteuerelementen und Verfahren zu deren Herstellung
EP1603141B1 (fr) * 2004-06-04 2016-08-24 ABB Schweiz AG Limiteur de surtensions avec isolation au gaz
CN101136270B (zh) * 2006-08-31 2013-03-20 Abb技术有限公司 高压套管及其制造方法以及高压设备
EP2455950B1 (fr) * 2010-11-19 2013-11-06 ABB Technology Ltd Traversée haute tension avec conducteur renforcé
RU2616589C2 (ru) * 2012-01-09 2017-04-18 Альстом Текнолоджи Лтд Вилочный и розеточный изолированный чистым газом стеновой проходной изолятор для высокого напряжения постоянного тока и сверхвысокого напряжения
HRP20221312T1 (hr) * 2015-03-31 2023-03-17 General Electric Technology Gmbh Gornje kućište
CN108137760B (zh) 2015-09-25 2022-03-15 三菱化学株式会社 (甲基)丙烯酸系共聚物及其制造方法、聚合物溶液、含聚合物组合物、防污涂料组合物

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504647A (en) * 1947-12-06 1950-04-18 Gen Electric Electric induction meter system
US3849590A (en) * 1972-11-01 1974-11-19 Hitachi Ltd Gas filled electrical bushing with concentric intermediate electrodes
WO1980000762A1 (fr) * 1978-10-10 1980-04-17 Bbc Brown Boveri & Cie Manchon isolant compact rempli d'hexafluorure de soufre avec un volume de gaz reduit

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE347086C (de) * 1922-01-12 Emil Claviez Verfahren zur Gewinnung von Fasern aus Schilf aller Gattungen, insbesondere aus Teichkolben- und Rohrkolbenschilf (Typhaceen)
DE374086C (de) * 1917-07-13 1923-04-19 Porzellanfabrik Kahla Elektrischer Durchfuehrungsisolator
DE572083C (de) * 1930-12-07 1933-03-10 Bbc Brown Boveri & Cie Hochspannungs-Hochvakuumschalter
US2306186A (en) * 1941-01-27 1942-12-22 Gen Electric High voltage electric circuit breaker
GB626632A (en) * 1942-07-25 1949-07-19 Sperry Gyroscope Co Inc Improvements in or relating to high-frequency attenuating devices
US2438347A (en) * 1944-05-13 1948-03-23 Davis Marinsky Coaxial cable
DE1198888B (de) * 1961-08-30 1965-08-19 Calor Emag Elektrizitaets Ag Hochspannungsdurchfuehrung
CH456709A (de) * 1967-10-18 1968-07-31 Sprecher & Schuh Ag Freiluft-Durchführung mit Druckgasfüllung für Höchstspannung
GB1316940A (en) * 1969-11-19 1973-05-16 British Insulated Callenders Gas insulated busbar installation
DE2205035A1 (de) * 1972-01-31 1973-08-09 Siemens Ag Durchfuehrung fuer hochspannungsgeraete
US3716652A (en) * 1972-04-18 1973-02-13 G & W Electric Speciality Co System for dynamically cooling a high voltage cable termination
US3819845A (en) * 1973-02-23 1974-06-25 Ite Imperial Corp Termination for metal enclosed, compressed gas insulated electrical conductor
US3911937A (en) * 1974-02-21 1975-10-14 Westinghouse Electric Corp Adherent coating for captivating small particles in gas-insulated electrical equipment
SE386762B (sv) * 1974-11-19 1976-08-16 Asea Ab Genomforing for elektrisk forbindelse
CH612790A5 (en) * 1977-04-29 1979-08-15 Sprecher & Schuh Ag Ceramic sleeve insulator with compressed-gas filling, especially for electrical installations and apparatuses
US4159401A (en) * 1977-11-01 1979-06-26 Tokyo Shibaura Kenki K.K. Gas filled bushings with potential shields
JPS57103213A (en) * 1980-12-19 1982-06-26 Tokyo Shibaura Electric Co Gas insulating bushing
JPS58176325U (ja) * 1982-05-19 1983-11-25 株式会社東芝 ガスブツシング
JPS62211813A (ja) * 1986-03-12 1987-09-17 三菱電機株式会社 ガスブツシング
BR8700893A (pt) * 1986-03-13 1987-12-22 Messwandler Bau Ag Transformador combinado de alta tensao e de corrente de alta tensao
DE3616243A1 (de) * 1986-05-14 1987-11-19 Raupach Friedrich Durchfuehrung, insbesondere fuer hohe spannungen
FR2628881B1 (fr) * 1988-03-15 1990-06-29 Alsthom Procede de realisation d'une traversee isolante exempte de risques d'explosion et traversee ainsi realisee

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504647A (en) * 1947-12-06 1950-04-18 Gen Electric Electric induction meter system
US3849590A (en) * 1972-11-01 1974-11-19 Hitachi Ltd Gas filled electrical bushing with concentric intermediate electrodes
WO1980000762A1 (fr) * 1978-10-10 1980-04-17 Bbc Brown Boveri & Cie Manchon isolant compact rempli d'hexafluorure de soufre avec un volume de gaz reduit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018205705A1 (de) 2018-04-16 2019-10-17 Siemens Aktiengesellschaft Messverfahren und Hochspannungsmesswandler mit Clean Air
WO2019201525A1 (fr) 2018-04-16 2019-10-24 Siemens Aktiengesellschaft Procédé de mesure et convertisseur de mesure de haute tension à l'air pur
US12002617B2 (en) 2018-04-16 2024-06-04 Hsp Hochspannungsgeräte Gmbh Measuring method and high-voltage transducer with clean air
WO2020048720A1 (fr) 2018-09-07 2020-03-12 Siemens Aktiengesellschaft Agencement et procédé de décharge de potentiel dans la technique liée aux hautes tensions
US20210313109A1 (en) * 2018-09-07 2021-10-07 Siemens Energy Global GmbH & Co. KG Arrangement and method for the gradual shutoff of potential in high-voltage technology

Also Published As

Publication number Publication date
CA2109852A1 (fr) 1994-05-31
US5548081A (en) 1996-08-20
DE4240118C1 (de) 1994-03-31

Similar Documents

Publication Publication Date Title
DE4240118C1 (de) Durchführung, insbesondere für hohe Spannungen mit spezieller Elektrodenhalterung
EP0510311B1 (fr) Transformateur de courant et de tension pour une installation haute tension à encapsulation métallique et à gaz isolant
DE3230091C2 (fr)
EP2154700A1 (fr) Isolant haute tension doté d'un élément de commande de champ
WO2005074074A2 (fr) Module de disjoncteur isole a l'aide de gaz sous pression et dispositif a traversee correspondant
DE2934805C2 (de) Elektrische Hochspannungsdurchführung
EP2620958B1 (fr) Dispositif de blindage pour un élément de liaison à conduction électrique
EP1569311B1 (fr) Enveloppe compacte d'un transformateur de courant pour interrupteurs isolés au gas
EP3320547B1 (fr) Électrode en forme de jante et ensemble enroulement d'un transformateur de mesure
DE4015929A1 (de) Isolator
EP2846336A1 (fr) Connexion d'au moins quatre conducteurs électriques
EP0651400B1 (fr) Traversée avec supports d'électrode spéciaux en particulier pour haute tension
DE102020212384A1 (de) Beschichteter Leiter in einem Hochspannungsgerät und Verfahren zur Erhöhung der dielektrischen Festigkeit
EP0789424A2 (fr) Elément de raccord pour deux sections de conducteur à haute tension
EP3281214B1 (fr) Convertisseur de courant et installation de commutation comprenant un convertisseur de courant
EP1133775A1 (fr) Traversee haute tension
EP0658271B1 (fr) Transformateur de courant
DE2720689C2 (de) Einleiter - Durchführungsstromwandler
EP2351056A1 (fr) Dispositif de barrières pour passage pour câbles
EP0622814B1 (fr) Transducteur arrangement
EP3266085B1 (fr) Élément de commande de champ pour fermetures d'extrémité de câbles de transfert d'énergie
DE2239133B2 (de) Druckgasisoliertes Hochspannungskabel
DE3616243A1 (de) Durchfuehrung, insbesondere fuer hohe spannungen
DE102022204594A1 (de) Kapselungsgehäuseanordnung
WO1988007756A1 (fr) Cable coaxial avec grille de protection utile comme chambre d'ionisation

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 CH ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19940531

17Q First examination report despatched

Effective date: 19950712

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19950914