EP1191564A1 - Gasisolierter Leistungsschalter mit integriertem elektronischem Stromwandler - Google Patents

Gasisolierter Leistungsschalter mit integriertem elektronischem Stromwandler Download PDF

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Publication number
EP1191564A1
EP1191564A1 EP01402352A EP01402352A EP1191564A1 EP 1191564 A1 EP1191564 A1 EP 1191564A1 EP 01402352 A EP01402352 A EP 01402352A EP 01402352 A EP01402352 A EP 01402352A EP 1191564 A1 EP1191564 A1 EP 1191564A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
annular
support
tube
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.)
Granted
Application number
EP01402352A
Other languages
English (en)
French (fr)
Other versions
EP1191564B1 (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
Alstom SA
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 Alstom SA filed Critical Alstom SA
Publication of EP1191564A1 publication Critical patent/EP1191564A1/de
Application granted granted Critical
Publication of EP1191564B1 publication Critical patent/EP1191564B1/de
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

  • a high-voltage single-phase circuit breaker comprising at least one interrupting chamber formed by an insulating tube filled with a insulating gas, comprising for at least one breaking chamber a current transformer which includes a primary and a secondary. The secondary is placed in the air around the primary at one end of the tube, and the primary is at the high voltage electrical potential of the phase.
  • Such a current transformer conventional has the disadvantage of requiring to bring the secondary winding wires to measuring devices connected to the earth, which is generally achieved by a metal tube protecting the wires and connecting the electrostatic screen to the earth potential. This implies in in particular a certain space requirement on the ground of the high voltage circuit breaker.
  • An object of the invention is to propose a circuit breaker of the first kind defined above, which reduces the maintenance costs of the current transformer as well as the size of the circuit breaker. Another goal is to propose a current transformer arranged in such a way modular to allow multiple mounting configurations of the transformer regardless of the circuit breaker configuration (column or T circuit breaker).
  • the invention relates to a circuit breaker of the type defined below. above, characterized in that the primary consists of a support metallic ring and in that the secondary is subject to a potential electric high voltage almost equal to the primary potential.
  • the transformer primary is therefore an annular electrical conductor surrounded by air, and the secondary directly surrounds the primary without a screen electrostatic interposed and without a secondary element being connected to the earth potential.
  • the secondary can thus be associated with an optical circuit or optoelectronics placed nearby in the air and subject to potential electric high voltage, such a circuit can be connected by optical fibers to devices placed on the ground.
  • Transformer maintenance such as for example the change of opto-electronic circuit boards, is facilitated by the layout of the secondary in the air.
  • the primary of transformer also provides a mechanical support function when it is placed at the interface of the circuit-breaker breaking chamber and a support column, or at the interface of the switching chamber of the circuit breaker and a closing resistance casing, or at the interface of the circuit breaker's breaking chamber and of a connection box to a support column in a T-configuration of circuit breakers.
  • the annular support constituting the primary comprises a part annular which has an outer collar, this collar being fixed coaxially to a metal flange electrically connected to a contact of the circuit breaker.
  • circuit breaker configurations depending on the invention for which the realization of a support in two parts annular is not necessary, for example in the case where the diameter of the circuit-breaker support column is small compared to the diameter of the chamber cutoff.
  • the annular support constituting the primary can then be formed of a single annular part with an L-shaped radial section around which the secondary is fitted before the assembly of the chamber on the support column.
  • the measurement signals recovered by the opto-electronic circuit can be driven to the ground by optical fibers which can advantageously be guided along and outside the support column without the use of watertight crossings.
  • the support column consists of a tube made of composite material such as glass fibers embedded in the resin and of an elastomer coating
  • the optical fibers can be guided the along the composite tube under the elastomeric coating.
  • Figure 1 shows schematically in axial section a first construction of a circuit breaker according to the invention.
  • Figure 2 shows schematically in axial section a second construction of a circuit breaker according to the invention.
  • Figure 3 shows schematically in axial section a third construction of a circuit breaker according to the invention.
  • Figure 4 shows schematically in axial section a fourth construction of a circuit breaker according to the invention.
  • Figure 5 shows schematically the construction of the circuit breaker of the Figure 2 with a column insulator for guiding the optical fibers to floor.
  • Figure 6 schematically shows a plan view of a fifth construction of a circuit breaker according to the invention.
  • the circuit breaker partially shown in Figure 1 is a circuit breaker column which comprises a breaking chamber 1 formed by a tube 2 in electrically insulating material, for example ceramic or other material fiberglass / resin composite, which here extends vertically in a axial direction A and in which a first contact 3 and a second contact 4.
  • the tube 2 is filled with an insulating gas capable of high dielectric such as SF6 under a few bars.
  • Contact 3 is connected electrically to a first outlet (not shown) provided at the upper end of the tube 2.
  • the contact 4 is movably mounted in the tube 2 with respect to contact 3 along axis A and an operating rod 6 in electrically insulating material passes through the tube 2 along the axis A and is mechanically connected to contact 4 to move it along this direction so as to open or close the circuit between the two sockets circuit breaker current.
  • Contact 4 is electrically connected to a frame metal or tubular fixing flange 5 formed by a metal tube 7 inserted into tube 2 and fixed to it by clamping.
  • Frame 5 has an annular flat flange 8 at the end of the tube 7 which extends radially outward of the tube 2 from the axis A.
  • FIG. 1 there is shown an insulating column 9 on which is coaxially mounted the tube 2 forming the breaking chamber 1.
  • This support column 9 which here extends vertically, is crossed by the rod operation 6, is also filled with dielectric gas and is intended for be placed on a chassis at ground potential.
  • Support column 9 also includes a tubular fixing flange 10 with a flange annular plane 11 similar to the flange 8 of the flange 5 but of a slightly smaller outside diameter.
  • a circuit breaker according to the invention comprises a current transformer built-in electronics which is arranged to be arranged indifferently at the top of the breaking chamber 1, or at the interface between the breaking chamber 1 and the support column 9, or also at the interface between the breaking chamber 1 and a closing resistance casing disposed at the end of the breaking chamber, or on a resistance casing closure attached to the end of the interrupting chamber 1, or the interface between the switching chamber 1 and a connection housing of the breaking chamber to a support column in a configuration of T-circuit breakers
  • the current transformer incorporated includes a primary circuit formed by a metallic conductor annular 12 which at the same time serves as a mechanical support when it located at the interface between the breaking chamber 1 and a support column such as 9, or a closing resistance casing or a connection as described above.
  • This annular metallic conductor 12 is preferably made of two annular parts 12A and 12B which fit or fit together coaxially and one inside the other to allow a setting simple place of the secondary circuit of the transformer. More specifically, part 12A is formed by a first tube provided with an annular collar outer end 13A extending radially and having a diameter exterior roughly identical to that of the flange 11. Part 12B is formed by a second tube having a slightly larger inside diameter larger than the outside diameter of the first tube for fitting onto the first tube of part 12A. The tube of part 12B is also provided an outer annular flange 13B extending radially and having an outer diameter roughly identical to that of the collar 8.
  • the tube of the part 12B has an annular inner shoulder 13C on which is clamped, for example by screws 13D, the tube of part 12A when the two parts 12A and 13A are nested one inside the other.
  • flanges 13A and 13B are spaced from each other along the axis A and delimit an annular space in which the secondary of the transformer.
  • An O-ring 14 is disposed between the two tubes of the parts 12A and 12B to seal the assembly.
  • annular metal support 12 in two parts 12A and 12B which fit into each other ensures good hold mechanical, whether the transformer is located at the interface or at the end of chamber, as well as a good gas-tight insulation under a pressure of a few bars in the switching chamber.
  • the transformer secondary is arranged around the primary 12 in air, and can be formed by coils of Rogowski or by a crystal of Faraday. As noted above, each Rogowski coil such as 15 or the Faraday crystal (not illustrated) is inserted first on the tube of one parts 12A or 12B by surrounding it with a small clearance and the tube on the other part of the primary reported in such a way 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 fixed on the flange 13A or 13B of so as to close the annular space to protect the secondary and its opto-electronic circuit of the external environment.
  • a protective casing 17 removable sheet metal can be fixed on the flange 13A or 13B of so as to close the annular space to protect the secondary and its opto-electronic circuit of the external environment.
  • the circuit associated with secondary may only understand purely means optics connected by optical fibers to electronic means arranged at the ground, and the electronic part of the global opto-electronic circuit is then not subject to the potential of high voltage.
  • the electronic current transformer is arranged at the interface between the tube 2 of the switching 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 fixed coaxially by screws or the like to the flange 11.
  • the seal gas interface between the tube 2 and the support column 9 is provided by an O-ring 18 arranged between the flanges 13A and 8 and by another seal O-ring 19 disposed between the flanges 13B and 11.
  • the flange 13B serves as an outlet 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.
  • Figure 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 breaking chamber at its end provided with an annular flange metal 20 on which the collar 13A of the support is fixed coaxially 12. The flange 13B serves as an outlet for the circuit breaker and its interior annular space which is closed in a gas-tight manner by a cover 21.
  • Figure 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 resistance 23.
  • This construction corresponds more particularly to a T-mounting of two circuit breakers on a support column, the axis A of the tube 2 extending horizontally perpendicular to the support column.
  • the metal annular 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 metallic annular flange 24 provided on the housing 22.
  • the collar 13B also serves as a socket for the circuit breaker and the casing 22 and the tube 2 communicate with each other at through the annular support 12 crossed by the insulating gas.
  • Support 12 interposed tightly between the casing 22 and the tube 2 is also crossed by an electrical conductor 30 which extends into the insulating gas between the closing resistance 23 in the casing 22 and a contact in the tube 2.
  • Figure 4 shows yet another construction similar to that of the Figure 3 but where the transformer is placed on the housing 22 of resistance closing.
  • the flange 13A of the support 12 is here coaxially fixed to a metallic annular flange 25 provided on the top of the casing 22, and the space inner annular part 12B is closed by the cover 21.
  • the flange 13B serves as an outlet for the circuit breaker.
  • a transformer can also be arranged at the interface of a switching chamber and a connection housing two circuit breakers mounted in T 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 casing 31.
  • each current transformer includes an annular support 12 forming the primary, a secondary 15 surrounding the primary 12, and a casing protection 17 containing the optoelectronic circuit with the secondary.
  • the primaries of the two current transformers are interposed so watertight on the one hand between the breaking chamber 1A and the casing 31 and on the other between the casing 31 and the breaking chamber 1B.
  • the measurement signals recovered by the opto-electronic circuit 16 can be driven to the ground by unrepresented optical fibers guided outside the column support 9 and / or of the tube forming the breaking chamber.
  • these optical fibers 24 are guided towards the ground by the interior of an insulator column 26 arranged parallel to the support column of the breaker 1.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Transformer Cooling (AREA)
  • Transformers For Measuring Instruments (AREA)
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 true EP1191564A1 (de) 2002-03-27
EP1191564B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (7)

* 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

Citations (6)

* 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
FR2525807A1 (fr) * 1982-04-22 1983-10-28 Alsthom Atlantique Disjoncteur avec transformateur de courant incorpore
US4742197A (en) * 1986-03-21 1988-05-03 Bbc Brown Boveri Ltd. High-voltage switch
EP0446837A1 (de) * 1990-03-16 1991-09-18 Asea Brown Boveri Aktiengesellschaft Durchführungswandler
DE19608285A1 (de) * 1996-02-23 1997-08-28 Siemens Ag Hochspannungsfreiluftschalter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (6)

* 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
FR2525807A1 (fr) * 1982-04-22 1983-10-28 Alsthom Atlantique Disjoncteur avec transformateur de courant incorpore
US4742197A (en) * 1986-03-21 1988-05-03 Bbc Brown Boveri Ltd. High-voltage switch
EP0446837A1 (de) * 1990-03-16 1991-09-18 Asea Brown Boveri Aktiengesellschaft Durchführungswandler
DE19608285A1 (de) * 1996-02-23 1997-08-28 Siemens Ag Hochspannungsfreiluftschalter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
US6414257B1 (en) 2002-07-02
ATE273560T1 (de) 2004-08-15
DE60104788D1 (de) 2004-09-16
FR2814275B1 (fr) 2003-05-09
DE60104788T2 (de) 2005-09-01
US20020036185A1 (en) 2002-03-28
EP1191564B1 (de) 2004-08-11
FR2814275A1 (fr) 2002-03-22

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