DE1182738B - Overpressure protection for electrical machines and devices filled with insulating fluid - Google Patents

Overpressure protection for electrical machines and devices filled with insulating fluid

Info

Publication number
DE1182738B
DE1182738B DEL46922A DEL0046922A DE1182738B DE 1182738 B DE1182738 B DE 1182738B DE L46922 A DEL46922 A DE L46922A DE L0046922 A DEL0046922 A DE L0046922A DE 1182738 B DE1182738 B DE 1182738B
Authority
DE
Germany
Prior art keywords
overpressure protection
membrane
electrical machines
insulating fluid
cutter carrier
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
DEL46922A
Other languages
German (de)
Inventor
Rudolf Heinz
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL46922A priority Critical patent/DE1182738B/en
Publication of DE1182738B publication Critical patent/DE1182738B/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/404—Protective devices specially adapted for fluid filled transformers
    • 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
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/55—Oil reservoirs or tanks; Lowering means therefor
    • H01H33/555—Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/245—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by the deformation of a body of elastic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Description

Überdrucksicherung für mit Isolierflüssigkeit gefüllte elektrische Maschinen und Apparate Zusatz zum Patent 961821 Das Hauptpatent 961821 betrifft eine überdrucksicherung für mit Isolierflüssigkeit oder Isoliergas gefüllte elektrische Maschinen und Apparate mit einer im Störungsfalle durch Anlegen an Schneiden oder Spitzen zerplatzenden Membran, dadurch gekennzeichnet, daß zur genauen Einstellung oder Veränderung des Ansprechdrucks der Membran der Schneidenträger axial verstellbar angeordnet und die Schneide auswechselbar in den Träger eingesetzt ist, wobei sowohl ein Verschieben des Schneidenträgers als auch das Auswechseln der Schneide jeweils unabhängig vom Betriebszustand durchführbar ist.Overpressure protection for electrical ones filled with insulating liquid Machines and apparatus Addendum to patent 961821 The main patent 961821 relates to an overpressure safety device for electrical ones filled with insulating liquid or gas Machines and apparatus with one in the event of a malfunction by applying to cutting or Tips bursting membrane, characterized in that for precise adjustment or changing the response pressure of the membrane of the cutter carrier axially adjustable arranged and the cutting edge is inserted interchangeably in the carrier, with both moving the cutter carrier and replacing the cutter, respectively can be carried out regardless of the operating state.

Gemäß dem Hauptpatent ist der Schneidenträger an beiden Enden fest eingespannt, so daß eine Zerstörung der Membran im Störungsfall unangemeldet erfolgt. Auch kann bei einer betriebsmäßig bedingten Ausdehnung der Isolierflüssigkeit und damit bedingten Wölbung der Membran und gleichzeitig zu klein eingestelltem Abstand zwischen Membran und Schneide eine unbeabsichtigte Zerstörung der Membran erfolgen. Dies wird erfindungsgemäß dadurch vermieden, daß der Schneidenträger drehbar gelagert ist, während das andere Ende zwischen einem oberen und einem unteren Anschlag frei beweglich ist. Der Spielraum zwischen oberem und unterem Anschlag wird bestimmt durch die betriebsmäßig zu erwartende Dehnung der Membran, wobei normalerweise die Schneide auf der Membran aufliegt und von ihr getragen wird. Bei einem übermäßigen Gasausbruch infolge eines Stehlichtbogens wird die Membran so stark gedehnt, daß sie den Schneidenträger an seinen oberen Anschlag preßt und so selbst ihre Zerstörung einleitet.According to the main patent, the cutter carrier is fixed at both ends clamped so that destruction of the membrane occurs unannounced in the event of a malfunction. In the event of an operationally induced expansion of the insulating liquid and the resulting curvature of the membrane and, at the same time, the spacing that is set too small unintentional destruction of the membrane can occur between the membrane and the cutting edge. According to the invention, this is avoided in that the cutter carrier is rotatably mounted while the other end is free between an upper and a lower stop is movable. The margin between the upper and lower stop is determined due to the expected expansion of the membrane during operation, normally the The cutting edge rests on the membrane and is carried by it. In the case of an excessive Gas outbreak as a result of a standing arc, the membrane is stretched so much that it presses the cutter carrier against its upper stop and so itself destroys it initiates.

Zwischen dem oberen und dem unteren Anschlag kann ein Schalter vorgesehen werden, der durch den Schneidenträger betätigt wird. Auf diese Weise ist es möglich, bei einer durch die Lage des Schalters zwischen den beiden Anschlägen bestimmten Dehnung der Membran ein Signal oder einen Schaltvorgang auszulösen. Schäden innerhalb des Transformators können auf diese Weise frühzeitig erkannt und ihre Folge verhindert werden.A switch can be provided between the upper and lower stops which is operated by the cutter carrier. In this way it is possible with one determined by the position of the switch between the two stops Expansion of the membrane to trigger a signal or a switching process. Damage within of the transformer can be detected early in this way and their consequence prevented will.

Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung. In F i g. 1 ist die Anordnung im normalen Betriebsfall dargestellt. Das Gehäuse 1 wird durch die Membran 2 verschlossen. Der die Schneide oder Spitzen tragende Schneidenträger 3 ist in dem Lagerbock 4 einseitig drehbar gelagert, während sein anderes Ende zwischen dem unteren Anschlag 5 und dem oberen Anschlag 6 frei beweglich ist. Auf dem Weg von dem Anschlag 5 zum Anschlag 6 betätigt der Schneidenträger den Schalter 7, der ein Signal oder einen Schaltvorgang auslöst. Bei einem plötzlichen Gasausbruch ergibt sich die in F i g. 2 dargestellte Situation. Die Membran 2 preßt den Schneidenträger 3 an den oberen Anschlag 6 und wird dadurch zerstört.The drawing shows an embodiment of the invention. In F i G. 1 shows the arrangement in normal operation. The housing 1 is closed by the membrane 2. The cutter carrier carrying the cutting edge or points 3 is rotatably mounted on one side in the bearing block 4, while its other end between the lower stop 5 and the upper stop 6 is freely movable. On the way from the stop 5 to the stop 6, the cutter holder actuates the switch 7, the triggers a signal or a switching process. In the event of a sudden outbreak of gas the in F i g. 2 situation shown. The membrane 2 presses the cutter carrier 3 to the upper stop 6 and is thereby destroyed.

Claims (1)

Patentansprüche: 1. überdrucksicherung für mit Isolierflüssigkeit oder Isoliergas gefüllte elektrische Maschinen und Apparate mit einer im Störungsfalle durch Anlegen an Schneiden oder Spitzen zerplatzenden Membran nach Hauptpatent 961821, dadurch gekennzeichnet, daß der Schneidenträger einseitig drehbar gelagert ist, während das andere Ende zwischen einem oberen und einem unteren Anschlag frei beweglich ist. 2. überdrucksncherung nach Anspruch 1, dadurch gekennzeichnet, daß im normalen Betriebszustand die Schneide auf der Membran aufliegt. 3. überdrucksicherung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß zwischen dem unteren und dem oberen Anschlag ein Schalter vorgesehen ist, der durch das frei bewegliche Ende des Schneidenträgers betätigt wird.Claims: 1. Overpressure protection for with insulating liquid or insulating gas-filled electrical machines and apparatus with one in the event of a malfunction by applying to cutting edges or tips bursting membrane according to main patent 961821, characterized in that the cutter carrier is rotatably mounted on one side, while the other end is freely movable between an upper and a lower stop is. 2. Überdrucksncherung according to claim 1, characterized in that in the normal Operating state the cutting edge rests on the membrane. 3. Overpressure protection after Claim 1 and 2, characterized in that between the lower and the upper Stop a switch is provided through the freely movable end of the cutter carrier is operated.
DEL46922A 1964-01-30 1964-01-30 Overpressure protection for electrical machines and devices filled with insulating fluid Pending DE1182738B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL46922A DE1182738B (en) 1964-01-30 1964-01-30 Overpressure protection for electrical machines and devices filled with insulating fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL46922A DE1182738B (en) 1964-01-30 1964-01-30 Overpressure protection for electrical machines and devices filled with insulating fluid

Publications (1)

Publication Number Publication Date
DE1182738B true DE1182738B (en) 1964-12-03

Family

ID=7271817

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL46922A Pending DE1182738B (en) 1964-01-30 1964-01-30 Overpressure protection for electrical machines and devices filled with insulating fluid

Country Status (1)

Country Link
DE (1) DE1182738B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2919270A1 (en) * 1979-05-12 1980-11-13 Ritz Messwandler Kg Oil or gas filled housing protector - initiates detonator firing by sensing arc current or pressure rise
US5601109A (en) * 1995-03-15 1997-02-11 Process Equipment Limited Fluid flow monitor
US5755249A (en) * 1995-03-15 1998-05-26 Process Equipment Limited Fluid flow monitor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2919270A1 (en) * 1979-05-12 1980-11-13 Ritz Messwandler Kg Oil or gas filled housing protector - initiates detonator firing by sensing arc current or pressure rise
US5601109A (en) * 1995-03-15 1997-02-11 Process Equipment Limited Fluid flow monitor
US5755249A (en) * 1995-03-15 1998-05-26 Process Equipment Limited Fluid flow monitor

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