EP4095877B1 - Gleichstromschutzschalter - Google Patents

Gleichstromschutzschalter

Info

Publication number
EP4095877B1
EP4095877B1 EP20916137.1A EP20916137A EP4095877B1 EP 4095877 B1 EP4095877 B1 EP 4095877B1 EP 20916137 A EP20916137 A EP 20916137A EP 4095877 B1 EP4095877 B1 EP 4095877B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
direct
columns
current
current 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.)
Active
Application number
EP20916137.1A
Other languages
English (en)
French (fr)
Other versions
EP4095877A1 (de
EP4095877A4 (de
Inventor
Takashi Inagaki
Sho Tokoyoda
Kazuyori TAHATA
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP4095877A1 publication Critical patent/EP4095877A1/de
Publication of EP4095877A4 publication Critical patent/EP4095877A4/de
Application granted granted Critical
Publication of EP4095877B1 publication Critical patent/EP4095877B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/59Circuit 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
    • H01H33/596Circuit 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

Definitions

  • the present disclosure relates to a direct-current circuit breaker including a lightning arrester.
  • a direct-current circuit breaker forms a current zero point by superimposing an oscillating current on a direct current, and interrupts the direct current at the current zero point.
  • a direct-current circuit breaker of a forced-extinction type which includes a resonance circuit including a capacitor and a reactor and performs extinction by superimposing a resonance current generated by discharge of the capacitor on a direct current.
  • Patent Literature 1 discloses a direct-current circuit breaker including a lightning arrester for suppressing an overvoltage of a capacitor when interrupting a direct current.
  • Patent Literature 2 relates to a DC circuit breaker, provided with: a main circuit breaker inserted into a DC wire, a resonance circuit connected in parallel to the main circuit breaker, and a MOSA connected in parallel to the main circuit breaker through the resonance circuit; and a main circuit breaker inserted into a DC wire, a switch serially connected to the main circuit breaker, a resonance circuit connected in parallel to the main circuit breaker, and a MOSA connected in parallel to the main circuit breaker through the resonance circuit.
  • the DC wire is a wire branching from the DC wire and returning to the DC wire.
  • the switch is inserted on the upstream side of the DC wire.
  • Patent Literature 3 relates to a lightning arrester.
  • Non-Patent Literature 1 relates to a realization of heavy-duty zinc-oxide type lightning arrestors by parallel connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (7)

  1. Gleichstrom-Leistungsschalter (1), der einen Leistungsschalter (3) umfasst, der angepasst ist, einen Gleichstrom, der durch eine Gleichstromleitung (2) fließt, zu unterbrechen, wobei der Gleichstrom-Leistungsschalter (1) aufweist:
    eine Resonanzschaltung, die einen Kondensator (4), eine Drosselspule (5) und einen Schalter (6) umfasst, die in Reihe miteinander verbunden sind;
    einen Lichtbogenableiter (7); und
    einen Betriebsprozessor (11), der angepasst ist, einen Öffnungsbetrieb und einen Schließbetrieb sowohl durch den Leistungsschalter (3) als auch den Schalter (6) zu steuern,
    dadurch gekennzeichnet, dass der Lichtbogenableiter (7) eine Vielzahl von Säulen (20) umfasst, die jeweils einen Stapel aus einer Vielzahl von nicht linearen Widerstandselementen (24) umfassen, wobei der Lichtbogenableiter (7) parallel mit dem Kondensator (4) verbunden ist,
    wobei der Gleichstrom-Leistungsschalter (1) ferner aufweist:
    eine Überwachungseinrichtung (12), die angepasst ist, eine Anwesenheit oder Abwesenheit einer Anomalie in jeder der Vielzahl von Säulen (20) zu überwachen; und
    einen Sperrprozessor (13), der angepasst ist:
    Betriebe des Leistungsschalter (3) und des Schalters (6) zu sperren, die durch den Betriebsprozessor (11) in einem Fall gesteuert werden, wo es eine Anomalie in zumindest einer oder einigen Säulen (20a) aus der Vielzahl von Säulen (20) gibt; und
    die Betriebe des Leistungsschalter (3) und des Schalters (6) zu entsperren, nachdem die Anomalie aufgelöst ist.
  2. Gleichstrom-Leistungsschalter (1) nach Anspruch 1, wobei die Überwachungseinrichtung (12) angepasst ist, die Anwesenheit oder Abwesenheit einer Anomalie in jeder aus der Vielzahl von Säulen (20) basierend auf einem Ergebnis einer Erfassung einer Temperatur von jeder aus der Vielzahl von Säulen (20) zu überwachen.
  3. Gleichstrom-Leistungsschalter (1) nach Anspruch 2, wobei die Überwachungseinrichtung (12) angepasst ist, zu bestimmen, dass eine Anomalie in einer oder einigen Säulen (20a) aus der Vielzahl von Säulen (20), die einen Temperaturanstieg, der eine zulässige Temperatur übersteigt, aufweist bzw. aufweisen, aufgetreten ist.
  4. Gleichstrom-Leistungsschalter (1) nach Anspruch 3, der eine Trenneinrichtung (15) aufweist, die angepasst ist, die eine oder einigen Säulen (20a), in der bzw. den die Anomalie aufgetreten ist, von Säulen zu trennen, die sich von der einen oder den einigen Säulen (20a) aus der Vielzahl von Säulen (20) unterscheiden.
  5. Gleichstrom-Leistungsschalter (1) nach Anspruch 4, wobei der Sperrprozessor (13) angepasst ist, Betriebe des Leistungsschalters (3) und des Schalters (6) in einem Fall zu entsperren, wo eine Temperatur von jeder Säule (20), die sich von der getrennten einen oder den getrennten Säulen (20) aus der Vielzahl von Säulen (20) unterscheidet, auf eine Referenztemperatur abgefallen ist, die vorab als Referenz für einen Neustart eines Betriebs eingestellt ist.
  6. Gleichstrom-Leistungsschalter (1) nach Anspruch 2, wobei die Überwachungseinrichtung (12) angepasst ist, zu bestimmen, dass es eine Anomalie in einer Gesamtheit der Vielzahl von Säulen (20) in einem Fall gibt, wo eine Gesamttemperatur der Vielzahl von Säulen (20) auf eine erste Referenztemperatur angestiegen ist, die vorab als Referenz zur Unterbrechung eines Betriebs eingestellt ist.
  7. Gleichstrom-Leistungsschalter (1) nach Anspruch 6, wobei der Sperrprozessor (13) angepasst ist, Betriebe des Leistungsschalters (3) und des Schalters (6) in einem Fall zu entsperren, wo eine Temperatur von jeder aus der Vielzahl von Säulen (20) auf eine zweite Referenztemperatur abgefallen ist, die vorab als Referenz für einen Neustart eines Betriebs eingestellt ist.
EP20916137.1A 2020-01-21 2020-01-21 Gleichstromschutzschalter Active EP4095877B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/001965 WO2021149158A1 (ja) 2020-01-21 2020-01-21 直流遮断器

Publications (3)

Publication Number Publication Date
EP4095877A1 EP4095877A1 (de) 2022-11-30
EP4095877A4 EP4095877A4 (de) 2023-03-22
EP4095877B1 true EP4095877B1 (de) 2025-07-23

Family

ID=72517842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20916137.1A Active EP4095877B1 (de) 2020-01-21 2020-01-21 Gleichstromschutzschalter

Country Status (3)

Country Link
EP (1) EP4095877B1 (de)
JP (1) JP6758554B1 (de)
WO (1) WO2021149158A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116666021B (zh) * 2023-05-23 2024-08-09 国网电力科学研究院武汉南瑞有限责任公司 一种±500kV直流断路器能量吸收用避雷器及其设计方法
CN116660792A (zh) * 2023-06-29 2023-08-29 泉州维盾电气有限公司 一种带避雷设备健康监测功能的磁控支柱式断路器结构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56158642U (de) * 1980-04-28 1981-11-26
JPS59163722A (ja) 1983-03-07 1984-09-14 三菱電機株式会社 直流しや断装置
JP6328356B1 (ja) * 2017-07-11 2018-05-23 三菱電機株式会社 直流遮断器

Also Published As

Publication number Publication date
JP6758554B1 (ja) 2020-09-23
EP4095877A1 (de) 2022-11-30
EP4095877A4 (de) 2023-03-22
JPWO2021149158A1 (de) 2021-07-29
WO2021149158A1 (ja) 2021-07-29

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