DE1241514B - Spark gap, can be built into a pressurized gas enclosure - Google Patents

Spark gap, can be built into a pressurized gas enclosure

Info

Publication number
DE1241514B
DE1241514B DEA52670A DEA0052670A DE1241514B DE 1241514 B DE1241514 B DE 1241514B DE A52670 A DEA52670 A DE A52670A DE A0052670 A DEA0052670 A DE A0052670A DE 1241514 B DE1241514 B DE 1241514B
Authority
DE
Germany
Prior art keywords
spark gap
built
pressurized gas
gas enclosure
pressure
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.)
Pending
Application number
DEA52670A
Other languages
German (de)
Inventor
Dipl-Ing Georg Koeppl
Dipl-Ing Mathias Sanders
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France 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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Publication of DE1241514B publication Critical patent/DE1241514B/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
    • H01T4/12—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel hermetically sealed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/08—Overvoltage arresters using spark gaps structurally associated with protected apparatus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/065—Means for detecting or reacting to mechanical or electrical defects
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/065—Means for detecting or reacting to mechanical or electrical defects
    • H02B13/0655—Means for detecting or reacting to mechanical or electrical defects through monitoring changes of gas properties

Description

Funkenstrecke, einbaubar in eine Druckgaskapselung Für vollgekapselte Schaltanlagen sind definierte spannungsmäßige Schwachstellen notwendig. Man baut zu diesem Zweck Funkenstrecken ein. Beim Ansprechen der Funkenstrecke steigt infolge des Lichtbogens der Druck in der Kapselung. Gleichzeitig wird das in solchen Schaltanlagen verwendete Isoliergas zersetzt. Beide Erscheinungen sind unangenehm, ganz besonders bei Gasen, z. B. SF., weil deren Zersetzungsprodukte die Isolierung angreifen. Man hat deshalb versucht, die Lichtbogenbrennzeiten der Funkenstrecke abzukürzen, indem man mit einer besonderen zusätzlichen Vorrichtung die Funkenstrecke sich selbst schließen läßt.Spark gap, can be built into a pressurized gas enclosure For fully encapsulated switchgear, defined voltage-related weak points are necessary. Spark gaps are built in for this purpose. When the spark gap responds, the pressure in the enclosure rises due to the arc. At the same time, the insulating gas used in such switchgear is decomposed. Both phenomena are unpleasant, especially with gases, e.g. B. SF., Because their decomposition products attack the insulation. Attempts have therefore been made to shorten the arc burning times of the spark gap by letting the spark gap close itself with a special additional device.

Der Aufwand für eine solche selbstschließende Vorrichtung ist erheblich. Zudem muß nach einem Ansprechen der Funkenstrecke die Kapselung und die Isolierung am Ort der Funkenstrecke erneuert oder mindestens gereinigt werden.The effort for such a self-closing device is considerable. In addition, after the spark gap has responded, the encapsulation and insulation replaced or at least cleaned at the location of the spark gap.

Bei der vorgeschlagenen Lösung werden die genannten Nachteile vermieden.In the proposed solution, the disadvantages mentioned are avoided.

Die Erfindung bezieht sich auf eine Funkenstrecke einbaubar in eine Druckgaskapselung.The invention relates to a spark gap that can be built into a Pressurized gas encapsulation.

Die Erfindung besteht darin, daß die Funkenstrecke noch zusätzlich in einen Isolierbehälter eingebaut ist und dieser eine Druckausgleichöffnung aufweist.The invention consists in the fact that the spark gap is additionally is built into an insulating container and this has a pressure equalization opening.

Die Figur zeigt einen Axialschnitt durch das Endstück der Kapselung 3 einer Schaltanlage. Die Kapselung ist mit einem Isoliergas, z. B. SF, gefüllt, wobei in dieser ein Gasüberdruck besteht. 1 ist die Funkenstrecke mit außenliegenden Steckanschlüssen. über diese ist die Funkenstrecke mit dem im geerdeten Gehäuse verschraubten Bolzen 5 und mit dem spannungsführenden Leiter 8 verbunden. Die beiden Stäbe der Funkenstrecke sind in dem Isolierbehälter 2 eingesetzt. Der Isolierbehälter weist eine kleine Druckausgleichsöffnung 6 auf. Dadurch kommt ein Druckausgleich zwischen dem Innenraum des Isolierbehälters und dem Druckraum der Kapselung zustande.The figure shows an axial section through the end piece of the encapsulation 3 of a switchgear. The encapsulation is with an insulating gas, e.g. B. SF, filled, in which there is a gas overpressure. 1 is the spark gap with external plug connections. Via this the spark gap is connected to the bolt 5 screwed into the earthed housing and to the live conductor 8. The two rods of the spark gap are inserted in the insulating container 2. The insulating container has a small pressure equalization opening 6. This creates a pressure equalization between the interior of the insulating container and the pressure chamber of the encapsulation.

In Verbindung mit der Funkenstrecke kann am Bolzen 5 der Eisenkern 4 einer Anzeigevorrichtung angebracht werden, durch welche ein allfälliger Funkendurchschlag angezeigt wird. Ferner kann mit der Funkenstrecke in Reihe ein Strombegrenzungswiderstand 7 vorgesehen werden. Die Steckanschlüsse gestatten es, die Funkenstrecke nach erfolgtem Ansprechen auszuwechseln.In connection with the spark gap, the iron core can be attached to the bolt 5 4 a display device can be attached, through which a possible spark breakdown is shown. Furthermore, a current limiting resistor can be connected in series with the spark gap 7 are provided. The plug connections allow the spark gap after To change address.

Wenn die Funkenstrecke zum Ansprechen kommt, so zündet der Lichtbogen zwischen den Elektroden. Das Isoliergas im Isolierbehälter zersetzt sich unter der Einwirkung des Lichtbogens, der Druck im Behälter steigt infolge der hohen Temperaturen an. Durch die sehr kleine Ausgleichsöffnung, welche im Normalzustand für Druckausgleich sorgt, erfolgt eine gewisse Druckentlastung. Da der Lichtbogen nur kurzzeitig anhält, erfolgt nur eine geringe Abströmung des Isoliergases aus dem Isolierbehälter. Die Zersetzungsprodukte bleiben fast vollständig im Druckbehälter zurück. Die Druckspitze im Behälter sinkt nach dem Abschalten rasch ab infolge der Wärmeabfuhr über die Kontakte. Das außerhalb des Isolierbehälters aber in der Druckgaskoppelung befindliche Gas wird praktisch nicht verunreinigt. Nach Abschalten durch den Schalter in der Schaltanlage kann die Funkenstrecke einfach ausgewechselt werden.When the spark gap responds, the arc ignites between the electrodes. The insulating gas in the insulating container decomposes under the Effect of the electric arc, the pressure in the container increases as a result of the high temperatures at. Due to the very small compensation opening, which is normally used for pressure compensation there is a certain pressure relief. Since the arc only lasts for a short time, there is only a slight outflow of the insulating gas from the insulating container. the Almost all of the decomposition products remain in the pressure vessel. The pressure peak in the container drops rapidly after switching off as a result of the heat dissipation via the Contacts. The one outside of the insulating container but in the compressed gas coupling Gas is practically not contaminated. After switching off with the switch in the Switchgear, the spark gap can be easily replaced.

Claims (2)

Patentansprüche: 1. Funkenstrecke, einbaubar in einer Druckgaskapselung, dadurch gekennzeichnet, daß die Funkenstrecke noch zusätzlich in einen Isolierbehälter eingebaut ist und dieser eine Druckausgleichsöffnung aufweist. Claims: 1. Spark gap, can be installed in a pressurized gas enclosure, characterized in that the spark gap is additionally placed in an insulating container is installed and this has a pressure compensation opening. 2. Funkenstrecke nach Anspruch 1, dadurch gekennzeichnet, daß in Reihe mit der Funkenstrecke ein Strombegrenzungswiderstand geschaltet ist.2. Spark gap according to claim 1, characterized in that one in series with the spark gap Current limiting resistor is switched.
DEA52670A 1966-05-17 1966-06-06 Spark gap, can be built into a pressurized gas enclosure Pending DE1241514B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1241514X 1966-05-17

Publications (1)

Publication Number Publication Date
DE1241514B true DE1241514B (en) 1967-06-01

Family

ID=4564669

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA52670A Pending DE1241514B (en) 1966-05-17 1966-06-06 Spark gap, can be built into a pressurized gas enclosure

Country Status (1)

Country Link
DE (1) DE1241514B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2200650A1 (en) * 1972-09-27 1974-04-19 Siemens Ag
DE2509326A1 (en) * 1975-02-28 1976-09-09 Siemens Ag Metal-clad gas-insulated HV switchgear with power circuit breaker - has preferred breakdown point in series with high-speed isolator
DE2514161A1 (en) * 1975-03-29 1976-10-14 Calor Emag Elektrizitaets Ag Protective device against overvoltages - for installation parts in gas insulated HV switchgear prevents uncontrolled opening of casing
DE2552086A1 (en) * 1975-11-20 1977-05-26 Calor Emag Elektrizitaets Ag Overvoltage arrester for metal clad HV switchgear - has vacuum switch tube in insulating gas atmosphere with stationary contacts
DE3417648A1 (en) * 1984-04-13 1985-10-17 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Overvoltage suppressor
DE102005060096B4 (en) * 2004-12-17 2008-01-17 Dehn + Söhne Gmbh + Co. Kg Enclosed surge arrester for use as a low-voltage network spark gap with separate, electrically connected in series functional units

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2200650A1 (en) * 1972-09-27 1974-04-19 Siemens Ag
DE2509326A1 (en) * 1975-02-28 1976-09-09 Siemens Ag Metal-clad gas-insulated HV switchgear with power circuit breaker - has preferred breakdown point in series with high-speed isolator
DE2514161A1 (en) * 1975-03-29 1976-10-14 Calor Emag Elektrizitaets Ag Protective device against overvoltages - for installation parts in gas insulated HV switchgear prevents uncontrolled opening of casing
DE2552086A1 (en) * 1975-11-20 1977-05-26 Calor Emag Elektrizitaets Ag Overvoltage arrester for metal clad HV switchgear - has vacuum switch tube in insulating gas atmosphere with stationary contacts
DE3417648A1 (en) * 1984-04-13 1985-10-17 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Overvoltage suppressor
DE102005060096B4 (en) * 2004-12-17 2008-01-17 Dehn + Söhne Gmbh + Co. Kg Enclosed surge arrester for use as a low-voltage network spark gap with separate, electrically connected in series functional units

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