EP0470302A1 - Disjoncteur haute tension à SF6 sous pression - Google Patents

Disjoncteur haute tension à SF6 sous pression Download PDF

Info

Publication number
EP0470302A1
EP0470302A1 EP90250204A EP90250204A EP0470302A1 EP 0470302 A1 EP0470302 A1 EP 0470302A1 EP 90250204 A EP90250204 A EP 90250204A EP 90250204 A EP90250204 A EP 90250204A EP 0470302 A1 EP0470302 A1 EP 0470302A1
Authority
EP
European Patent Office
Prior art keywords
current
circuit breaker
time
voltage
interrupter unit
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Withdrawn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
EP90250204A
Other languages
German (de)
English (en)
Inventor
Wolfgang Dipl.-Ing. Stehpan
Friedrich-Wilhelm Dipl.-Ing. Veuhoff
Norbert Dr.-Ing. Trapp
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP90250204A priority Critical patent/EP0470302A1/fr
Priority to DE9116231U priority patent/DE9116231U1/de
Priority to EP91250211A priority patent/EP0470678A1/fr
Publication of EP0470302A1 publication Critical patent/EP0470302A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • H01H33/593—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 ensuring operation of the switch at a predetermined point of the AC cycle
    • 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
    • H01H33/006—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means adapted for interrupting fault currents with delayed zero crossings

Definitions

  • the invention relates to a high-voltage SF 6 pressure gas circuit breaker, in which the triggering of the switching-off movement of the switching elements of the interrupter unit designed for a specific short-circuit breaking capacity in 50 Hz operation is caused by a triggering control device which, regardless of the time of a command to switch off, the switching-off movement triggers the switching elements at a time which is in a fixed relationship to the zero crossing of the current to be interrupted, which ensures a zero crossing in the quenching area of the interrupter unit.
  • Such a high-voltage blower piston circuit breaker with synchronous control of the switch-off time is known from DD-AI 248 903.
  • the tripping control unit controls the switch-off movement by means of a delay generated by the zero crossing of the current to be interrupted, depending on the intrinsic switch time and the amount of the current Impulse so that a current zero crossing of the same polarity lies in the optimal quenching range of the switch and then interrupts the current with a minimum arc time when there is a switch-off command, such as manual switch-off or switch-off by mains protection.
  • a switch-off command such as manual switch-off or switch-off by mains protection.
  • the interrupter unit of the known switch with an enlarged extinguishing chamber and the installation is modified a abbrennfesten insert in the nozzle with respect to a corresponding for operation at 50 Hz high-voltage circuit breakers, because known at 16 2/3 Hz the switching energy (as an integral over the arc time from the product of short-circuit current and arc voltage) per current half-wave or the heat quantity of the switching arc is three times greater than at the same current strengths at 50 Hz (see magazine "E and M", 1987, pages 261, 262).
  • Such an adaptation of the quenching chamber in the interrupter unit requires a high development effort for a relatively low requirement.
  • the invention is based on the object to others, a simple manner for 16 2/3 Hz suitable high voltage SF 6 -Druckgas circuit breaker, in particular blast piston to create.
  • a high-voltage SF 6 pressure gas circuit breaker of the type described at the outset ie a high voltage SF 6 pressure gas circuit breaker provided with a breaker unit designed for 50 Hz and with a trip control device intended for synchronous switching, according to the invention in operated a 16 2/3 of Hz network and the trip control device is set so that a current zero crossing of the 16 2/3 Hz stream always lies in the erasing area of the interrupter unit 50 Hz.
  • the entire half-wave of 16 2/3 Hz current of 30 ms not comprehensive erase area of a single 50 Hz interrupter unit of generally about is 15 ms, already sufficient to turn off the field interrupting short-circuit current with certainty.
  • it can be a normal single-pole 50 Hz high voltage SF 6 -Druckgas power switch, whether an open-air switch, or in-a compressed gas-insulated encapsulated high-voltage switchgear circuit breaker, even in a 16 2/3 of Hz mains switch off the short-circuit currents, for interruption thereof at 50 Hz the interrupter unit is designed.
  • the trip control unit can be activated by the shutdown command. Only when there is a switch-off command, be it a manual switch-off command or a command given by a mains protection device, does the tripping control device record the measured data of the current to be switched off and, with the constant delay time set, triggers the switching-off movement of the switching elements in such a way that the zero current passage into the extinguishing area the breaker unit falls.
  • FIG. 1 shows a function of time t plotted short circuit current i in a 16 2/3 of Hz network.
  • This short-circuit current i has a pure sine shape with a half cycle of 30 ms.
  • Fs puffer circuit breakers obtained as a result of the occurrence of the short circuit current i a shutdown of the built-in this 16 2/3 of grid high-voltage S, so a connected to the drive of the switch tripping control device is activated, which detects the current zero crossings of the short-circuit current i.
  • This tripping control unit responds at the first current zero crossing 1 after the positive half-wave of the short-circuit current i, with which a certain time delay 2, which was previously set depending on the proper times of the measuring devices of the tripping control unit and the circuit breaker and the size of the quenching area of the interrupter unit, first becomes effective , which is indicated by arrows and is approximately 44 ms in the exemplary embodiment. After this time delay 2 has elapsed, the opening movement of the switching elements of the circuit breaker is triggered at time 3 of the contact separation.
  • the circuit breakers of the circuit breaker thus open and, after a certain lead time 4, represented by arrows 4, of approximately 9 ms at time 5, reach a position which corresponds to the minimum arcing time of the interrupter unit. This means that the extinguishing area 6 (also represented by arrows) begins at time 5, since the interrupter unit would then already have been able to prevent an arc from reigniting.
  • the next current zero crossing, 7 of 16 2/3 Hz short circuit current i after the time delay 2 falls approximately in the middle of this erasing region 6 of the interrupter unit, so that the short circuit current i with certainty in this current zero passage 7 is interrupted.
  • the extinguishing range 6 of the interrupter unit is approximately 15 ms in accordance with the usual conditions at 50 Hz high-voltage SFs pressure gas circuit breakers.
  • the short-circuit current i x which contains a positive direct current element, has the first two zero current crossings 8 a short time after the short circuit has occurred, so that it is assumed that at this point in time the zero-current crossings 8 has not yet sent the circuit breaker to the circuit breaker. Accordingly, the trigger control unit is only activated at the subsequent zero current crossing 9, so that the constant time delay now begins twice. This means that the tripping control unit triggers the opening movement of the circuit breakers of the circuit breaker at time 10, at which the contacts of the circuit breakers separate and thus the lead time 4x begins. According to the extinguishing area 6x the interrupter unit at the time begins 11. The next zero crossing 12 of the short-circuit current i x is now clearly within this flooding zone 6x, so that the short circuit current i x interrupted with certainty.
  • the short-circuit current iy with the negative DC link.
  • the first current zero crossing 13 occurs too early for the activation of the triggering device by the switch-off command. This is only activated at the next current zero crossing 14.
  • the time delay 2y therefore begins in this current zero crossing 14 and the command to trigger the switching-off movement of the switching elements is issued at the triggering time 15.
  • the deletion area 6y of the interrupter unit therefore begins at time 16.
  • the zero current crossing 17 after the time delay 2y has elapsed clearly falls within the extinguishing range 6y of the interrupter unit.
  • the short-circuit current iy is therefore also switched off by the 50 Hz interrupter unit of the circuit breaker without difficulty.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
EP90250204A 1990-08-09 1990-08-09 Disjoncteur haute tension à SF6 sous pression Withdrawn EP0470302A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP90250204A EP0470302A1 (fr) 1990-08-09 1990-08-09 Disjoncteur haute tension à SF6 sous pression
DE9116231U DE9116231U1 (de) 1990-08-09 1991-07-30 Hochspannungs-SF↓6↓-Druckgas-Leistungsschalter
EP91250211A EP0470678A1 (fr) 1990-08-09 1991-07-30 Disjoncteur haute tension SF6

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90250204A EP0470302A1 (fr) 1990-08-09 1990-08-09 Disjoncteur haute tension à SF6 sous pression

Publications (1)

Publication Number Publication Date
EP0470302A1 true EP0470302A1 (fr) 1992-02-12

Family

ID=8205234

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90250204A Withdrawn EP0470302A1 (fr) 1990-08-09 1990-08-09 Disjoncteur haute tension à SF6 sous pression
EP91250211A Withdrawn EP0470678A1 (fr) 1990-08-09 1991-07-30 Disjoncteur haute tension SF6

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP91250211A Withdrawn EP0470678A1 (fr) 1990-08-09 1991-07-30 Disjoncteur haute tension SF6

Country Status (2)

Country Link
EP (2) EP0470302A1 (fr)
DE (1) DE9116231U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7698967B2 (en) 2004-10-29 2010-04-20 Compositech, Inc. Bicycle handlebar with removable and adjustable aerobar

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB718985A (en) * 1952-03-13 1954-11-24 Reyrolle A & Co Ltd Improvements relating to gas blast circuit breakers
DE2502810B1 (de) * 1969-11-08 1976-02-05 Reinhausen Maschf Scheubeck Kraftspeicher für Lastumschalter von Stufenschaltern für Regeltransformatoren
EP0338374A2 (fr) * 1988-04-16 1989-10-25 Asea Brown Boveri Aktiengesellschaft Procédé et dispositif de commande d'une installation d'actionnement d'un disjoncteur de moyenne ou haute tension

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB718985A (en) * 1952-03-13 1954-11-24 Reyrolle A & Co Ltd Improvements relating to gas blast circuit breakers
DE2502810B1 (de) * 1969-11-08 1976-02-05 Reinhausen Maschf Scheubeck Kraftspeicher für Lastumschalter von Stufenschaltern für Regeltransformatoren
EP0338374A2 (fr) * 1988-04-16 1989-10-25 Asea Brown Boveri Aktiengesellschaft Procédé et dispositif de commande d'une installation d'actionnement d'un disjoncteur de moyenne ou haute tension

Also Published As

Publication number Publication date
DE9116231U1 (de) 1992-06-11
EP0470678A1 (fr) 1992-02-12

Similar Documents

Publication Publication Date Title
DE3611270C2 (de) Elektrische Schalteinrichtung für hohe Schaltspannungen
US3660721A (en) Protective equipment for an alternating current power distribution system
EP3084960B1 (fr) Dispositif de commutation pour le passage et la coupure de courants électriques
EP3542386B1 (fr) Disjoncteur basse tension
EP3061111B1 (fr) Dispositif et procédé pour commuter un courant continu
DE69110499T2 (de) Lastschalter unterstützt durch Varistor.
EP1260823B1 (fr) Circuit d'essai synthétique pour vérifier la capacité de fermeture/coupure des disjoncteurs à haute tension à courant alternatif
DE69931744T2 (de) Vakuumschaltgerät
EP1991999B1 (fr) Commutateur électrique
DE69411311T2 (de) Erdungsschalter
DE112012007068B4 (de) Niederspannungs-Wechsel-Gleichstrom-Steuerung und Schutz für elektrisches Gerät
DE10016950A1 (de) Verfahren zum Abschalten eines Kurzschlussstroms im generatornahen Bereich
EP0470302A1 (fr) Disjoncteur haute tension à SF6 sous pression
DE19956698C1 (de) Anordnung mit zwei Schützen in Reihenschaltung
DE4005532A1 (de) Generator-leistungsschalter
DE1005606B (de) Anordnung zur Begrenzung von UEberstroemen in Gleich- und Wechselstromnetzen
DE2905747A1 (de) Strombegrenzungseinrichtung fuer hochspannungsschaltanlagen
EP0126882A2 (fr) Installation de commutation pour la distribution d'énergie électrique et procédé pour commander l'installation
EP0468299B1 (fr) Circuit avec un transformateur
DE850018C (de) Unterbrechungseinrichtung
DE1191884B (de) Gleichstromschalter fuer hohe Spannungen
WO2016174092A1 (fr) Déclenchement d'un système de protection contre des arcs électriques parasites
JP3372054B2 (ja) 高速再閉路接地装置
EP0470301A1 (fr) Disjoncteur haute tension à SF6 sous pression pour 16 2/3 Hz
JP3337749B2 (ja) 高速再閉路接地開閉器

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 DE LI SE

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19920813