EP1191564B1 - Gasisolierter Leistungsschalter mit integriertem elektronischem Stromwandler - Google Patents

Gasisolierter Leistungsschalter mit integriertem elektronischem Stromwandler Download PDF

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Publication number
EP1191564B1
EP1191564B1 EP01402352A EP01402352A EP1191564B1 EP 1191564 B1 EP1191564 B1 EP 1191564B1 EP 01402352 A EP01402352 A EP 01402352A EP 01402352 A EP01402352 A EP 01402352A EP 1191564 B1 EP1191564 B1 EP 1191564B1
Authority
EP
European Patent Office
Prior art keywords
annular
circuit
tube
support
breaker 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
EP01402352A
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English (en)
French (fr)
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EP1191564A1 (de
Inventor
Bruno Luscan
Alain Libaud
Olivier Grejon
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.)
Grid Solutions SAS
Original Assignee
Areva T&D SAS
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Publication date
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Publication of EP1191564A1 publication Critical patent/EP1191564A1/de
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/027—Integrated apparatus for measuring current or voltage

Definitions

  • the invention relates to a single-phase high-voltage circuit breaker comprising at least one breaking chamber formed by an insulating tube which extends in an axial direction and is filled with an insulating gas, comprising at least one breaking chamber a current transformer that includes a primary and a secondary, the secondary being arranged in air around the primary at one end of the tube.
  • the primary is at the potential electrical high voltage phase, and the secondary is subject to a high voltage potential almost equal to that of the primary.
  • US Pat. No. 4,742,197 discloses a high circuit breaker voltage of this kind with at least one type of current transformer said incorporated electronics, in which the primary consists of a conductor tubular in the air forming a high voltage pole of the circuit breaker to a end of the insulating tube of the interrupting chamber.
  • the secondary is disposed in the air around the primary, and is subject to high potential voltage almost equal to that of the primary.
  • the electrical signal of the secondary is converted into an optical signal which is conveyed for example to using an optical fiber up to a signal processing system in a equipment at the potential of the earth.
  • Such a device has advantages compared to a high-voltage circuit breaker equipped with a transformer conventional current, since it is no longer necessary to bring the wires of the winding of the secondary to grounded measuring devices, which allows in particular to reduce the footprint of the high circuit breaker voltage.
  • Such a high-voltage circuit breaker also has advantages over to a gas-insulated circuit breaker with a current transformer embedded electronic type as known from patent document DE 19 608 285.
  • the secondary of the transformer is disposed in the isolation gas of the interrupting chamber at one end of the insulating tube forming this chamber.
  • Transformer maintenance can be costly with such a layout of the transformer, because of the difficulty to access secondary school and the need in such a case to drain the isolation gas of the circuit breaker.
  • the secondary signal is generally weakened accordingly.
  • Primary current measurement is then less precise compared to the other more compact arrangement of the transformer.
  • this increase in the radial size of the current transformer can be penalizing for example in term of a multiphase circuit breaker assembly comprising several single-phase circuit-breakers arranged side by side due to the radial gap needed around each transformer for access to maintenance.
  • An object of the invention is to remedy the disadvantages of the state of the technique, and more particularly to propose a high-voltage circuit breaker gas-insulated single phase with at least one integrated electronic type current and arranged in a modular way to allow multiple transformer mounting configurations regardless of the circuit breaker configuration (column breaker or at T), while reducing the size of the transformer of current and having the possibility to use the same module regardless of the arrangement of the module in the circuit breaker.
  • the subject of the invention is a circuit breaker of the kind defined in preamble, characterized in that the primary consists of a support annular metal attached to a metal annular flange, said flange ring being disposed at one end of said insulating tube and electrically connected to a contact of the circuit breaker, and in that the inner annular space said medium is in communication with the volume of said tube to be filled with the same insulating gas by sealing between this gas and the outside atmosphere.
  • the primary transformer In addition to its electrical conduction function, the primary transformer also provides a mechanical support function when disposed at the interface of the circuit breaker interrupting chamber and of a support column, or at the interface of the breaking chamber of the circuit breaker and a closing resistor housing, or at the interface of the breaker circuit breaker chamber and a connection case to a support column in a T-configuration of circuit breakers.
  • annular space inside an annular support constituting the primary then allows the crossing of the operating rod of a chamber of cut, or the crossing of a conductor able to connect electrically a closing resistor at a contact of the breaking chamber.
  • the annular support constituting the primary comprises a part annular which has an outer collar, this collar being fixed coaxially to the metal flange electrically connected to a contact of the breaker.
  • the annular support comprises another annular part which fits together coaxially and so sealed in the first annular portion.
  • the annular support primary constituent can then be formed from a single annular portion to L-shaped radial section around which the secondary comes take off before mounting the break chamber on the column support.
  • the measurement signals recovered by the opto-electronic circuit can be led to the ground by optical fibers that can be advantageously guided along and outside the support column without the use of watertight crossings.
  • the support column consists of a tube of composite material of the glass fiber type embedded in the resin and an elastomer coating
  • the optical fibers can be guided on the along the composite tube under the elastomeric coating.
  • the current transformer incorporated comprises a primary circuit formed by a metallic conductor ring 12 which serves at the same time as mechanical support when located at the interface between the breaking chamber 1 and a support column such as 9, or a closing resistance housing or crankcase connection as explained above.
  • This annular metallic conductor 12 is preferably made of two annular portions 12A and 12B which engage or engage coaxially and in such a way as to allow simple place of the secondary circuit of the transformer. More particularly, the portion 12A is formed by a first tube provided with an annular flange external end plate 13A extending radially and having a diameter outermost approximately that of the flange 11. Part 12B is formed by a second tube having a slightly larger inner diameter large than the outside diameter of the first tube to get into the first tube of part 12A. The tube of part 12B is also provided an outer annular end flange 13B extending radially and having an outer diameter approximately the same as that of the flange 8. Furthermore, as shown in FIG.
  • the tube of part 12B has an annular inner shoulder 13C on which is clamped by example by screws 13D, the tube of the part 12A when the two parts 12A and 13A are nested one inside the other.
  • the flanges 13A and 13B are spaced apart from each other along the axis A and define an annular space in which is mounted the secondary of the transformer.
  • An O-ring 14 is disposed between the two tubes of parts 12A and 12B to seal the assembly.
  • annular metal support 12 in two parts 12A and 12B which fit into each other ensures a good performance whether the transformer is located at the interface or at the end of the chamber, as well as a good insulation gas seal under a pressure of a few bars in the breaking chamber.
  • the secondary of the transformer is arranged around the primary 12 in air, and can be formed by Rogowski coils or by a crystal of Faraday. As mentioned above, each Rogowski coil such as 15 or the Faraday crystal (not shown) is inserted first on the tube of one parts 12A or 12B surrounding it with a weak game and the tube of the other part of the primary reported so that the secondary is found embedded between the flanges 13A and 13B of the primary.
  • the opto-electronic circuit 16 associated with the transformer secondary can advantageously be placed in the air near the secondary in the annular space between the flanges 13A and 13B, and a protective casing 17 removable sheet metal can be attached to the flange 13A or 13B of to close the annular space to protect the secondary and its opto-electronic circuit of the external environment.
  • the circuit secondary school may only include purely optically connected optical fibers to electronic means arranged at ground, and the electronic part of the global opto-electronic circuit is then not subject to the potential of high voltage.
  • the column breaker of FIG. electronic current transformer is arranged at the interface between the tube 2 of the break chamber and the support column 9 and is crossed by the operating rod 6. More particularly, the flange 13A is fixed coaxially by screws or the like to the flange 8 and the flange 13B is coaxially attached by screws or the like to the flange 11. Watertightness the gas from the interface between the tube 2 and the support column 9 is provided by an O-ring 18 disposed between the flanges 13A and 8 and by another seal ring 19 disposed between the flanges 13B and 11. In this construction, the flange 13B serves as socket for the circuit breaker and the tube and the column communicate with each other through the annular support 12 which is therefore crossed by the insulating gas.
  • FIG. 2 shows another construction of a circuit breaker according to the invention in which the electronic current transformer is arranged to the free end of the breaking chamber 1. More particularly, the tube 2 forming the interrupting chamber at its end provided with an annular flange metal 20 on which is fixed coaxially the flange 13A support 12. The flange 13B serves as a socket for the circuit breaker and has its inner annular space which is closed gas-tight by a cover 21.
  • FIG. 3 shows another construction of a circuit breaker according to the invention in which the electronic current transformer is arranged to the interface between the breaking chamber 1 and a metal casing 22 containing a closing resistor 23.
  • This construction corresponds more particularly to a T-fitting of two circuit breakers on one support column, the axis A of the tube 2 extending horizontally perpendicular to the support column.
  • the metal ring flange 20 mounted at the end of the tube 2 is fixed coaxially with the flange 13A of the support 12 and the flange 13B of the support 12 is fixed coaxially to a metal annular flange 24 provided on the housing 22.
  • the flange 13B is still used as socket for the circuit breaker and the housing 22 and the tube 2 communicate with each other at through the annular support 12 traversed by the insulating gas.
  • the support 12 interposed sealingly between the housing 22 and the tube 2 is also crossed by an electrical conductor 30 which extends into the insulating gas between the closing resistor 23 in the housing 22 and a contact in the tube 2.
  • a transformer can also be arranged to the interface of a breaking chamber and a connection housing of two T-circuit breakers on the top of a support column.
  • a housing 31 connects the breaking chambers 1A and 1B of the two circuit breakers and overcomes an insulating support column 32, these chambers extending perpendicular to the support column 32 on either side of the housing 31.
  • each current transformer comprises an annular support 12 forming the primary, a secondary 15 surrounding the primary 12, and a housing 17 enclosing the optoelectronic circuit with the secondary.
  • the primaries of the two current transformers are interposed sealed on the one hand between the breaking chamber 1A and the housing 31 and other part between the casing 31 and the breaking chamber 1B.
  • the measurement signals recovered by the opto-electronic circuit 16 may be led to the ground by unrepresented optical fibers guided outside the column support 9 and / or the tube forming the interrupting chamber.
  • these optical fibers 24 are guided to the ground from the inside of an insulator column 26 arranged parallel to the support column of the chamber of break 1 of the circuit breaker.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Transformer Cooling (AREA)
  • Transformers For Measuring Instruments (AREA)

Claims (10)

  1. Einphasen-Hochspannungsschalter, umfassend mindestens eine Trennkammer (1, 1A, 1B), welche durch ein isolierendes Rohr (2) gebildet ist, das sich entlang einer axialen Richtung (A) erstreckt und mit einem Isolationsgas gefüllt ist, welcher für mindestens eine Trennkammer einen Stromwandler aufweist, der eine Primärseite und eine Sekundärseite umfasst, wobei die Sekundärseite (15) in Luft um die Primärseite herum an einem Ende des Rohr (2) angeordnet ist, wobei die Primärseite sich auf dem elektrischen Hochspannungspotenzial der Phase befindet und die Sekundärseite (15) einem Hochspannungspotenzial unterliegt, welches ungefähr gleich dem der Primärseite ist, dadurch gekennzeichnet, dass die Primärseite durch eine ringförmige metallische Halterung (12) gebildet ist, welche an einem ringförmigen metallischen Flansch (5, 20) befestigt ist, wobei der ringförmige Flansch an einem Ende des Rohrs (2) angeordnet ist und elektrisch mit einem Kontakt (4) des Schalters verbunden ist, und dass der ringförmige Innenraum der Halterung (12) sich in Verbindung mit dem Volumen des Rohrs (2) befindet, um mit demselben Isolationsgas gefüllt zu sein, wobei eine Dichtigkeit zwischen diesem Gas und der Außenluft realisiert ist
  2. Schalter gemäß Anspruch 1, wobei die ringförmige Halterung (12) einen ringförmigen Abschnitt (12A) umfasst, der einen äußeren Kragen (13A) beinhaltet, wobei der Kragen in koaxialer Weise an dem ringförmigen Flansch (5, 20) befestigt ist.
  3. Schalter gemäß Anspruch 2, wobei die ringförmige Halterung (12) einen weiteren ringförmigen Abschnitt (12B) umfasst, welcher koaxial und in abdichtender Weise in dem ringförmigen Abschnitt (12A) eingefügt ist.
  4. Schalter gemäß Anspruch 3, wobei jeder der zwei ringförmigen Abschnitte (12A, 12B) einen zylindrischen hohlen Rumpf aufweist, wobei der weitere ringförmige Abschnitt (12B) an einem Ende mit einem weiteren äußeren Kragen (13B) versehen ist, welcher als Stromanschluss dienen kann.
  5. Schalter gemäß Anspruch 4, wobei die Sekundärseite (15) mit einer optoelektronischen Schaltung verbunden ist und mit der letzteren in dem ringförmigen Außenraum, welcher zwischen den zwei äußeren Kragen (13A, 13B) der ringförmigen Halterung (12) gelegen ist, angeordnet ist, wobei der ringförmige Außenraum durch ein abnehmbares Gehäuse (17) verschlossen ist.
  6. Schalter gemäß einem der Ansprüche 1 bis 5, wobei die Sekundärseite (15) durch Rogowski-Spulen oder einen Faraday-Kristall gebildet ist.
  7. Schalter gemäß einem der Ansprüche 1 bis 6, wobei das Rohr (2), welches die Trennkammer beherbergt, koaxial an einer Halterungssäule (9) angebracht ist, wobei die ringförmige Halterung (12) in abdichtender 'Weise zwischen dem Rohr und der Halterungssäule angeordnet ist und das Rohr (2) und die Säule (9) über die ringförmige Halterung in verbindung stehen.
  8. Schalter gemäß Anspruch 7, wobei die ringförmige Halterung (12) von einem isolierenden Betätigungsschaft (6) durchquert ist, welcher sich in dem Isolationsgas zwischen dem Rohr (2) und der Säulenhalterung (9) erstreckt und welcher einen Kontakt (4) des Schalters verschieben kann.
  9. Schalter gemäß einem der Ansprüche 1 bis 6, umfassend einen Schließwiderstand (23) und wobei die ringförmige Halterung (12) in abdichtender Weise zwischen einem Gehäuse (22) des Schließwiderstands und dem Rohr (2), welches die Trennkammer bildet, angeordnet ist, wobei das Gehäuse und das Rohr über die ringförmige Halterung in Verbindung stehen.
  10. Schalter gemäß einem der Ansprüche 1 bis 6, wobei die zwei Trennkammern (1A, 1B) T-förmig über ein Verbindungsgehäuse (31) mit einer Halterungssäule (32) verbunden sind, und wobei eine ringförmige Halterung (12) in abdichtender Weise zwischen jeder Trennkammer und dem Anschlussgehäuse angeordnet ist.
EP01402352A 2000-09-20 2001-09-12 Gasisolierter Leistungsschalter mit integriertem elektronischem Stromwandler Expired - Lifetime EP1191564B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0011966 2000-09-20
FR0011966A FR2814275B1 (fr) 2000-09-20 2000-09-20 Disjoncteur a isolation au gaz avec un transformateur de courant electronique integre

Publications (2)

Publication Number Publication Date
EP1191564A1 EP1191564A1 (de) 2002-03-27
EP1191564B1 true EP1191564B1 (de) 2004-08-11

Family

ID=8854480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01402352A Expired - Lifetime EP1191564B1 (de) 2000-09-20 2001-09-12 Gasisolierter Leistungsschalter mit integriertem elektronischem Stromwandler

Country Status (5)

Country Link
US (1) US6414257B1 (de)
EP (1) EP1191564B1 (de)
AT (1) ATE273560T1 (de)
DE (1) DE60104788T2 (de)
FR (1) FR2814275B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10308708A1 (de) * 2003-02-28 2004-09-09 Hentze-Lissotschenko Patentverwaltungs Gmbh & Co.Kg Vorrichtung zur Beaufschlagung eines Objektes mit Laserstrahlung, Bearbeitungsvorrichtung für die Bearbeitung eines Objektes sowie Druckvorrichtung für das Drucken von Bildinformationen
US7910852B2 (en) * 2008-02-07 2011-03-22 Eaton Corporation Encapsulated pole unit conductor assembly for an encapsulated pole unit and medium voltage circuit interrupter including the same
DE102010027423A1 (de) * 2010-07-14 2012-01-19 Siemens Aktiengesellschaft Mehrphasig druckgasisoliertes Kabeleinführungsmodul mit einer Kapselung
CA2939796A1 (en) 2014-02-20 2015-08-27 Cooper Technologies Company Modular switchgear insulation system
USD800667S1 (en) 2015-02-20 2017-10-24 Cooper Technologies Company Modular switchgear insulation device
CN105810492B (zh) * 2016-04-08 2019-01-01 国家电网公司 一种断路器
CN105719888A (zh) * 2016-04-28 2016-06-29 国网吉林省电力有限公司电力科学研究院 一种集成电子式电流电压互感器的断路器
CN109686612A (zh) * 2019-02-20 2019-04-26 浙江法拉迪电力科技有限公司 一种一二次融合成套柱上断路器支柱式极柱

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB782264A (en) * 1953-12-07 1957-09-04 Hans Ritz Dr Ing Improvements in or relating to current transformers
US3114815A (en) * 1959-11-18 1963-12-17 Westinghouse Electric Corp Fluid-blast circuit interrupter with improved current-transformer housing means
US4117288A (en) * 1976-06-25 1978-09-26 Westinghouse Electric Corp. Vacuum type circuit interrupter with a contact having integral axial magnetic field means
US4272661A (en) * 1978-03-09 1981-06-09 Gould Inc. High speed vacuum interrupter
FR2525807B1 (fr) * 1982-04-22 1985-05-31 Alsthom Atlantique Disjoncteur avec transformateur de courant incorpore
DE3614206A1 (de) * 1986-03-21 1987-09-24 Bbc Brown Boveri & Cie Hochspannungsschalter
DE4008421C2 (de) * 1990-03-16 1993-10-07 Asea Brown Boveri Durchführung
DE19608285A1 (de) * 1996-02-23 1997-08-28 Siemens Ag Hochspannungsfreiluftschalter

Also Published As

Publication number Publication date
US6414257B1 (en) 2002-07-02
ATE273560T1 (de) 2004-08-15
EP1191564A1 (de) 2002-03-27
DE60104788D1 (de) 2004-09-16
FR2814275B1 (fr) 2003-05-09
DE60104788T2 (de) 2005-09-01
US20020036185A1 (en) 2002-03-28
FR2814275A1 (fr) 2002-03-22

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