EP0749140A1 - Unterbrechungsvorrichtung für Hochspannungsgleichstrom - Google Patents

Unterbrechungsvorrichtung für Hochspannungsgleichstrom Download PDF

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Publication number
EP0749140A1
EP0749140A1 EP96401236A EP96401236A EP0749140A1 EP 0749140 A1 EP0749140 A1 EP 0749140A1 EP 96401236 A EP96401236 A EP 96401236A EP 96401236 A EP96401236 A EP 96401236A EP 0749140 A1 EP0749140 A1 EP 0749140A1
Authority
EP
European Patent Office
Prior art keywords
current
group
value
resistance
circuit
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
EP96401236A
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English (en)
French (fr)
Other versions
EP0749140B1 (de
Inventor
Van Doan Pham
Nadine Rieux
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
GEC Alsthom T&D 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 GEC Alsthom T&D SA filed Critical GEC Alsthom T&D SA
Publication of EP0749140A1 publication Critical patent/EP0749140A1/de
Application granted granted Critical
Publication of EP0749140B1 publication Critical patent/EP0749140B1/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
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/161—Variable impedances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H2009/0083—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 using redundant components, e.g. two pressure tubes for pressure switch

Definitions

  • the present invention relates to the breaking of high voltage direct currents.
  • a method for breaking the direct current which consists in causing an oscillation of the current and taking advantage of a zero crossing of the current.
  • An object of the present invention is to provide a device for cutting off high voltage direct currents which is economical in manufacture as well as in use.
  • the subject of the invention is a device for cutting the current of a high-voltage direct current line comprising two conductors, characterized in that it comprises, on at least one of the conductors of the line, an assembly comprising, connected in series, at least a first group comprising a first resistor in parallel with a first circuit breaker, at least second group comprising a second resistor in parallel with a second circuit breaker and a disconnector, the resistors comprising elements made of carbon-laden polymer, the device further comprising a fault detector giving, in the event of a fault, an opening order to the circuit breakers of the first group, giving an opening order to the circuit breakers of the second group when the current in the line exceeds by lower value a first threshold value predetermined, and giving an order to open the disconnector when the current in the line reaches a lower value one e second predetermined threshold value.
  • the resistance of the first group is chosen to be able to permanently support a current with a value at most equal to 1/35 of the maximum value of the line short-circuit current.
  • the resistance of the second group is chosen to be able to permanently support a current of value equal to approximately 1/15 of the value of the current permanently supported by the resistance of the first group.
  • the resistors of the first and second groups consist of an alternating stack of polymer disks loaded with carbon and metal discs good conductor of electricity.
  • the stack is surrounded by a sealed envelope filled with insulating gas.
  • the initial value of the resistance of the first group is of the order of 0.1 ⁇ .
  • the initial value of the resistance of the second group is of the order of 1.5 ⁇ .
  • the resistance of the second group is provided with a rapid heating device controlled when the circuit breaker of the first group is opened.
  • the device is characterized in that the first threshold value is between two thirty-fifths and one thirty-fifth of the maximum value (Icc) of the line short-circuit current.
  • the device is characterized in that the second threshold value is between one five hundredth and one thousandth of the maximum value (Icc) of the line short-circuit current.
  • the reference LL 'de notes one of the two conductors of a direct current line; the device of the invention may comprise two identical assemblies inserted respectively in series on each of the two conductors of the line. Only one of the assemblies is shown in FIG. 1., in a dashed rectangle designated by the reference 1.
  • the resistors R1 and R2 are constituted in the same manner described below.
  • the resistor comprises a plurality of discs 13 made of carbon-loaded polymer with two metallized faces, separated by discs 14 of metal which is a good conductor of electricity, preferably copper.
  • the polymer and copper discs constitute a stack placed between two metal end plates 11 and 12; the flanges are clamped by insulating rods 15 threaded at their ends and provided with nuts 16.
  • On the flanges are welded conductors 18 and 19 serving for the electrical connection with the line and with the circuit breaker.
  • the assembly constituting the resistor is protected by a sealed insulating envelope, not shown, filled with a dielectric gas such as nitrogen.
  • varistors 17 are connected in parallel on each of the discs 13 and make it possible to clip and limit the voltage across each of the discs.
  • the resistors made of carbon-laden polymer have a resistance at ambient temperature of the order of a tenth of an ohm and that at a temperature between 100 and 110 ° C., their resistance is suddenly multiplied by a factor of l 'order of 5000.
  • the characteristics of the resistor R1 are as follows.
  • Resistor R1 can withstand a permanent current inl equal to approximately 15% of In for a maximum short-circuit current Icc of 10,000A on line LL ', In denoting the nominal value of the current of the line.
  • the initial resistance of R1 is of the order of 0.1 ohm, for a network voltage of 100 kV.
  • Icc / in1 at least equal to 35.
  • the characteristics of the resistance R2 are as follows.
  • Resistor R2 can withstand a permanent current in2 equal to approximately 1% of In, i.e. 20 A if In is equal to 2,000 A.
  • in2 will be equal to 40 A.
  • the resistors R1 and R2 are chosen so that the ratio inl / in2 is close to 15.
  • the initial resistance of R2 is around 1.5 ohm for a network voltage of 100 kV.
  • the disks 13 of the resistor R1 have for example a section of 220 cm 2 ; the diques 13 of the resistance R2 will then have a section of 15 cm 2 .
  • the operation of the device is as follows.
  • the circuit breakers D1 and D2 and the disconnector S are closed.
  • the current flows through the circuit breakers, the ohmic value of the contact resistances is low compared to the ohmic value of the resistors R1 and R2.
  • the current also passes through the disconnector S.
  • the current detector DD gives the circuit breaker D1, on an output 3, an opening order.
  • the resistor R1 will change its ohmic value by Joule effect more or less quickly, for example in 15 milliseconds if the fault current is 10,000 A, in 60 milliseconds if the fault current is 5,000 A .
  • the sudden change in resistance value R1 causes a sudden decrease in current; this reduction is detected by the detector DD which, when the value of the current reaches by a lower value a first predetermined threshold, gives on an output 4, an order of opening to the circuit breaker D2.
  • This threshold is, for example, between 2in1 and in1, that is to say between two thirty-fifths and one thirty-fifth of the maximum value (Icc) of the line short-circuit current.
  • This current having a value greater than the value in2 defined above, causes rapid heating of the resistor R2 whose ohmic value increases, causing a further decrease in the current in the line. This decrease is more or less rapid depending on the value of the current passing through the resistor R2.
  • the residual current is cut by the disconnector, upon detection by the detector DD of the passage by a lower value of a second predetermined threshold.
  • This order is transmitted by a link 5.
  • the above-mentioned threshold is for example between in2 and 0.5 in2, that is to say approximately between one fifth and one thousandth of the maximum value (Icc) of the line short-circuit current.
  • the resistor R2 is advantageously equipped with a rapid heating device C which is started as soon as the circuit breaker D1 opens, either by an order issued by the fault detector DD (link 3 '), or by a command not shown linked to movement of the contacts of circuit breaker D1.
  • This heating device by rapidly heating the resistor R2 to a temperature of approximately 100 ° C., makes it possible to accelerate the transition of the resistor R2.
  • the fault-free disconnection of the nominal current In, or of a current with a value less than In is carried out according to the same process as that which has just been described, but by controlling the opening of the circuit breaker D1 directly, without involving any at this stage the fault detector.
  • Circuit breakers D1 and D2 are chosen to have an "opening time" of the order of 20 milliseconds; the disconnector has an opening time of a few seconds.
  • assembly 1 can be constituted with two groups R1-D1 in series and two groups R2-D2 in series, the circuit breakers in each group being controlled simultaneously and with the same series of thresholds as those indicated above.
  • the disconnector S must have a double voltage withstand and a good breaking capacity.
  • the invention finds application in the equipment of high voltage direct current networks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Keying Circuit Devices (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Electronic Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP96401236A 1995-06-13 1996-06-10 Unterbrechungsvorrichtung für Hochspannungsgleichstrom Expired - Lifetime EP0749140B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9506988 1995-06-13
FR9506988A FR2735611B1 (fr) 1995-06-13 1995-06-13 Dispositif pour la coupure d'un courant continu a haute tension

Publications (2)

Publication Number Publication Date
EP0749140A1 true EP0749140A1 (de) 1996-12-18
EP0749140B1 EP0749140B1 (de) 1999-10-06

Family

ID=9479913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96401236A Expired - Lifetime EP0749140B1 (de) 1995-06-13 1996-06-10 Unterbrechungsvorrichtung für Hochspannungsgleichstrom

Country Status (5)

Country Link
EP (1) EP0749140B1 (de)
AT (1) ATE185445T1 (de)
DE (1) DE69604533T2 (de)
ES (1) ES2138301T3 (de)
FR (1) FR2735611B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006100192A1 (fr) * 2005-03-22 2006-09-28 Schneider Electric Industries Sas Dispositif de commutation d'un circuit electrique a ouverture sequentielle
WO2011050832A1 (en) * 2009-10-27 2011-05-05 Abb Technology Ag An hvdc breaker and control apparatus for controlling an hvdc breaker
WO2015053484A1 (ko) * 2013-10-07 2015-04-16 한국전기연구원 고압 직류 전류 차단 장치 및 방법
CN104685597A (zh) * 2012-10-05 2015-06-03 Abb技术有限公司 具有堆叠中断器模块的断路器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110080758A1 (en) * 2008-06-10 2011-04-07 Abb Technology Ag Plant for transmitting electric power

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253332B (de) * 1965-04-07 1967-11-02 Licentia Gmbh Anordnung zum Abschalten hoher Stroeme
FR2506067A1 (fr) * 1981-05-15 1982-11-19 Alsthom Atlantique Disjoncteur a haute tension
WO1990000825A1 (en) * 1988-07-15 1990-01-25 Raychem Corporation Assemblies of ptc circuit protection devices
EP0431510A1 (de) * 1989-12-08 1991-06-12 Gec Alsthom Sa Begrenzender Hochspannungsgleichstromschalter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253332B (de) * 1965-04-07 1967-11-02 Licentia Gmbh Anordnung zum Abschalten hoher Stroeme
FR2506067A1 (fr) * 1981-05-15 1982-11-19 Alsthom Atlantique Disjoncteur a haute tension
WO1990000825A1 (en) * 1988-07-15 1990-01-25 Raychem Corporation Assemblies of ptc circuit protection devices
EP0431510A1 (de) * 1989-12-08 1991-06-12 Gec Alsthom Sa Begrenzender Hochspannungsgleichstromschalter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LEE A ET AL: "The development of a HVDC SF/sub 6/ breaker", IEEE TRANSACTIONS ON POWER APPARATUS AND SYSTEMS, OCT. 1985, USA, vol. PAS-104, no. 10, ISSN 0018-9510, pages 2721 - 2730, XP002000005 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006100192A1 (fr) * 2005-03-22 2006-09-28 Schneider Electric Industries Sas Dispositif de commutation d'un circuit electrique a ouverture sequentielle
FR2883658A1 (fr) * 2005-03-22 2006-09-29 Schneider Electric Ind Sas Dispositif de commutation d'un circuit electrique a ouverture sequentielle
WO2011050832A1 (en) * 2009-10-27 2011-05-05 Abb Technology Ag An hvdc breaker and control apparatus for controlling an hvdc breaker
CN102656656A (zh) * 2009-10-27 2012-09-05 Abb技术有限公司 Hvdc断路器和用于控制hvdc断路器的控制设备
KR101342333B1 (ko) 2009-10-27 2013-12-16 에이비비 테크놀로지 아게 Ｈｖｄｃ 차단기 및 ｈｖｄｃ 차단기 제어용 제어 장치
US8884176B2 (en) 2009-10-27 2014-11-11 Abb Technology Ag HVDC breaker and control apparatus for controlling an HVDC breaker
CN102656656B (zh) * 2009-10-27 2015-03-11 Abb技术有限公司 Hvdc断路器和用于控制hvdc断路器的控制设备
CN104685597A (zh) * 2012-10-05 2015-06-03 Abb技术有限公司 具有堆叠中断器模块的断路器
CN104685597B (zh) * 2012-10-05 2017-02-15 Abb 技术有限公司 具有堆叠中断器模块的断路器
WO2015053484A1 (ko) * 2013-10-07 2015-04-16 한국전기연구원 고압 직류 전류 차단 장치 및 방법
KR101521545B1 (ko) * 2013-10-07 2015-05-19 한국전기연구원 고압 직류 전류 차단 장치 및 방법
US10096989B2 (en) 2013-10-07 2018-10-09 Korea Electrotechnology Research Institute High-voltage DC current breaker and high-voltage DC current breaking method

Also Published As

Publication number Publication date
FR2735611B1 (fr) 1997-07-11
ES2138301T3 (es) 2000-01-01
ATE185445T1 (de) 1999-10-15
DE69604533T2 (de) 2000-05-31
DE69604533D1 (de) 1999-11-11
FR2735611A1 (fr) 1996-12-20
EP0749140B1 (de) 1999-10-06

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