DE1185700B - Detachable connection for electrical components embedded in dimensionally stable insulating material - Google Patents

Detachable connection for electrical components embedded in dimensionally stable insulating material

Info

Publication number
DE1185700B
DE1185700B DEC22895A DEC0022895A DE1185700B DE 1185700 B DE1185700 B DE 1185700B DE C22895 A DEC22895 A DE C22895A DE C0022895 A DEC0022895 A DE C0022895A DE 1185700 B DE1185700 B DE 1185700B
Authority
DE
Germany
Prior art keywords
pores
insulating material
detachable connection
cast resin
filled
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
DEC22895A
Other languages
German (de)
Inventor
Dipl-Ing Alfred Hartig
Dipl-Phys Arno Rost
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.)
Calor Emag AG
Original Assignee
Calor Emag AG
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 Calor Emag AG filed Critical Calor Emag AG
Priority to DEC22895A priority Critical patent/DE1185700B/en
Publication of DE1185700B publication Critical patent/DE1185700B/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G5/00Installations of bus-bars
    • H02G5/06Totally-enclosed installations, e.g. in metal casings
    • H02G5/066Devices for maintaining distance between conductor and enclosure
    • H02G5/068Devices for maintaining distance between conductor and enclosure being part of the junction between two enclosures
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/53Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • H02B13/045Details of casing, e.g. gas tightness

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Processing Of Terminals (AREA)

Description

Lösbare Verbindung für in formbeständigen Isolierstoff eingebettete elektrische Bauteile Zusatz zur Anmeldung: C 19529 VIII d/21 c -Auslegeschrift 1175 331 Die Patentanmeldung C 19529 VIII d/21 c betrifft eine in axialer Richtung des Leiters verspannte, lösbare Verbindung für zu Baueinheiten zusammenfügbare, gießharzisolierte Einzelbauteile, insbesondere für zusammenfügbare, gießharzisolierte Hochspannungsanlagen. Dabei sind an den Verbindungsstellen der Einzelbauteile vorgefertigte Isolierstoffkörper in die Gießharzisolierung der Bauteile eingefügt und/oder eingegossen, die an den Stoßstellen ` aus elastischem oder plastisch verformbarem Isolierstoff gebildete Preßflächen aufweisen.Detachable connection for embedded in dimensionally stable insulating material Electrical components Addendum to registration: C 19529 VIII d / 21 c - Auslegeschrift 1175 331 The patent application C 19529 VIII d / 21 c relates to an in the axial direction of the Conductor braced, detachable connection for cast resin-insulated connections that can be joined together to form structural units Individual components, in particular for cast resin-insulated high-voltage systems that can be joined together. There are prefabricated insulating bodies at the connection points of the individual components inserted into the cast resin insulation of the components and / or poured into the Joints `formed from elastic or plastically deformable insulating material Have pressing surfaces.

In der Patentanmeldung C 19529 VIII d/21 c sind verschiedene Ausgestaltungen einer solchen lösbaren Verbindung angegeben. Die vorliegende Erfindung hat eine weitere, besonders zweckmäßige Ausgestaltungsmöglichkeit einer Verbindung nach der Hauptpatentanmeldung zum Gegenstand. Erfindungsgemäß bestehen die zwischengefügten Isolierstoffkörper aus porösem Isolierstoff, z. B. Schaumkunststoff, dessen Poren mit hochwertigem, gasförmigem oder flüssigem elektrischem Isolierstoff gefüllt sind.In the patent application C 19529 VIII d / 21 c are different embodiments such a releasable connection. The present invention has one further, particularly useful design option of a connection according to the Main patent application on the subject. According to the invention, the intervening Insulating body made of porous insulating material, e.g. B. foam plastic, its pores are filled with high quality, gaseous or liquid electrical insulating material.

An sich ist es zwar bekannt, in der Elektrotechnik Schaumkunststoffe, deren Poren mit Isoliergas gefüllt sind, zu verwenden. Sie dienten aber bisher lediglich zum Isolieren von Leitungen, nicht dagegen als Dichtungsmaterial zwischen gießharzisolierten Einzelbauteilen.It is known per se, in electrical engineering, foamed plastics, whose pores are filled with insulating gas. So far, however, they have only served for insulating lines, but not as a sealing material between cast resin insulated ones Individual components.

Man kann geschlossenporigen Kunststoffschaum verwenden. Durch Verschäumen des Kunststoffes in elektronegativem Gas (z. B. Schwefelhexafluorid), Stickstoff, Kohlendioxyd od. dgl., kann erreicht werden, daß die geschlossenen Poren statt mit Luft mit einem der genannten Gase gefüllt sind.Closed-cell plastic foam can be used. By foaming of the plastic in electronegative gas (e.g. sulfur hexafluoride), nitrogen, Carbon dioxide or the like, can be achieved that the closed pores instead of with Air are filled with one of the gases mentioned.

Es ist auch möglich, offenporigen Kunststoffschaum zu benutzen, dessen Poren mit Isolierflüssigkeit geeigneter Viskosität gefüllt werden. Dabei läßt sich ein Fugenisoliermaterial verwirklichen, das eine noch höhere Dielektrizitätskonstante hat als das vorhergehend genannte Material. Die Viskosität der jeweils zur Tränkung zu verwendenden Isolierflüssigkeit ist der Größe der Poren des verwendeten Schaumstoffes anzupassen. Besonders geeignet für die Verwendung in Hochspannungskupplungsfugen sind Isolierstoffmassen, die im erwärmten Zustand dünnflüssig werden und von feinporigem Kunststoffschaum leicht aufgesaugt werden, die bei normaler Arbeitstemperatur aber zäh sind. Zweckmäßig ist dafür Sorge zu tragen, daß die Poren der Kunststoffschaumeinlagen an den an der Gießharzisolierung anliegenden Flächen offen, am Rand der Einlage aber geschlossen sind. Beim Zusammenpressen der Kupplungsteile tritt dann aus den offenen Poren eine kleine Menge der Isoliermasse aus und schafft eine innige Verbindung mit der festen Isolierstoffoberfläche des elektrischen Gerätes, während am Rand der Einlage keine Isoliermasse austreten kann.It is also possible to use open-cell plastic foam, its Pores are filled with insulating liquid of suitable viscosity. It can be Realize a joint insulation material that has an even higher dielectric constant has than the aforementioned material. The viscosity of each for impregnation The insulating liquid to be used is the size of the pores of the foam used adapt. Particularly suitable for use in high-voltage coupling joints are insulating compounds that become thin when heated and have fine pores Plastic foam can be easily absorbed, but at normal working temperature are tough. It is useful to ensure that the pores of the plastic foam inserts open on the surfaces adjacent to the cast resin insulation, on the edge of the insert but are closed. When the coupling parts are pressed together, the open pores a small amount of the insulating compound and creates an intimate connection with the solid insulating material surface of the electrical device, while at the edge no insulating compound can escape from the insert.

Die Zeichnung zeigt ein Ausführungsbeispiel des Erfindungsgegenstandes.The drawing shows an embodiment of the subject matter of the invention.

Gemäß F i g. 1 sind die beiden Leiter 1 und 2, die mittels der Kontakte 3 und 4 ineinandergreifen, von Hüllen 5 und 6 aus Gießharz, beispielsweise Epoxydharz, umgeben. In die Hülle 5 ist der metallene Ringflansch 7 und in die Hülle 6 der Ringflansch 8 eingelassen. Die Flansche sind durch über den Umfang verteilte Schrauben 9 lösbar verbunden. Zwischen den Gießharzteilen 5 und 6 ist eine kegelförmige Fuge vorhanden, die durch eine kegelförmige, unter dem Preßdruck stehende Einlage 10 ausgefüllt ist. Diese ist in F i g. 2 besonders herausgezeichnet, und zwar links im Schnitt und rechts in Ansicht. Sie besteht aus Schaumkunststoff mit offenen Poren, die mit einem Isolieröl geeigneter Viskosität gefüllt sind. An den Flächen 11 und 12 sind die Poren der Oberfläche offengelassen. An der Randfläche 13 sind die Poren der äußeren Oberfläche, wie angedeutet, verschlossen. Es versteht sich, daß die Erfindung auch bei Anordnungen verwendet werden kann, bei denen die Isolierhüllen 5 und 6 labyrinthartig ineinandergreifen oder bei denen die Fuge nach einer Kurve verläuft. Die Hüllen 5 und 6 können selbstverständlich aus jedem geeigneten Isoliermaterial bestehen, beispielsweise auch aus gummielastischem.According to FIG. 1, the two conductors 1 and 2, which interlock by means of the contacts 3 and 4, are surrounded by sheaths 5 and 6 made of cast resin, for example epoxy resin. The metal annular flange 7 is let into the casing 5 and the annular flange 8 is let into the casing 6. The flanges are releasably connected by screws 9 distributed over the circumference. Between the cast resin parts 5 and 6 there is a conical joint which is filled by a conical insert 10 under the pressure. This is shown in FIG. 2 particularly drawn out, namely in section on the left and in view on the right. It consists of foam plastic with open pores that are filled with an insulating oil of suitable viscosity. The pores of the surface are left open on surfaces 11 and 12. On the edge surface 13, the pores of the outer surface are, as indicated, closed. It goes without saying that the invention can also be used in arrangements in which the insulating sleeves 5 and 6 interlock like a labyrinth or in which the joint runs along a curve. The sheaths 5 and 6 can of course consist of any suitable insulating material, for example also of rubber-elastic material.

Claims (5)

Patentansprüche: 1. In axialer Richtung des Leiters verspannte lösbare Verbindung für zu Baueinheiten zusammenfügbare gießharzisolierte Einzelbauteile, insbesondere für zusammenfügbare gießharzisolierte Hochspannungsanlagen, bei denen an den Verbindungsstellen vorgefertigte Isoherstoffkörper in die Gießharzisolierung der Bauteile eingefügt und/oder eingegossen sind, die an den Stoßstellen aus elastischem oder plastisch verformbarem Isolierstoff gebildete Preßflächen aufweisen, nach Patentanmeldung C 19529 VIII d/21c, dadurch gekennzeichnet, daß die zwischengefügten Isolierstoffkörper (10) aus porösem Isolierstoff, z. B. Schaumkunststoff, bestehen, dessen Poren mit hochwertigem, gasförmigem oder flüssigem elektrischem Isolierstoff gefüllt sind. Claims: 1. Detachable braced in the axial direction of the conductor Connection for cast resin-insulated individual components that can be joined together to form structural units, especially for joinable cast resin insulated high-voltage systems where Isoherstoffkörper prefabricated at the connection points in the cast resin insulation of the components are inserted and / or cast, which are made of elastic at the joints or plastically deformable insulating material formed pressing surfaces, according to patent application C 19529 VIII d / 21c, characterized in that the interposed insulating body (10) made of porous insulating material, e.g. B. foam plastic, exist whose pores with high-quality, gaseous or liquid electrical insulating material are filled. 2. Lösbare Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß geschlossenporiger Kunststoffschaum (10) verwendet ist, dessen Poren beim Verschäumen mit elektronegativem Gas (z. B. Schwefelhexafluorid), Stickstoff, Kohlendioxyd od. dgl., gefüllt worden sind. 2. A releasable connection according to claim 1, characterized in that closed-cell plastic foam (10) is used, the pores of which have been filled with electronegative gas (e.g. sulfur hexafluoride), nitrogen, carbon dioxide or the like during foaming. 3. Lösbare Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß offenporiger Kunststoffschaum (10) verwendet ist, dessen Poren mit Isolierflüssigkeit geeigneter Viskosität gefüllt sind. 3. Detachable connection according to claim 1, characterized in that open-pored Plastic foam (10) is used, the pores of which are more suitable with insulating liquid Viscosity are filled. 4. Lösbare Verbindung nach Anspruch 3, gekennzeichnet durch die Verwendung einer Isolierstoffflüssigkeit, die im erwärmten Zustande dünnflüssig ist, so daß sie von feinporigem Kunststoffschaum leicht aufgesaugt wird, bei normaler Arbeitstemperatur dagegen zäh ist. 4. Detachable connection according to claim 3, characterized by the use of an insulating liquid that is thin when heated is so that it is easily absorbed by fine-pored plastic foam, with normal Working temperature, however, is tough. 5. Lösbare Verbindung nach Anspruch 3 und 4, dadurch gekennzeichnet, daß die Poren der Kunststoffschaumeinlage (10) an den an der Gießharzisolierung anliegenden Flächen (11,12) offen, am Rande (13) der Einlage dagegen geschlossen sind. In Betracht gezogene Druckschriften: Britische Patentschrift Nr. 531622.5. Detachable connection according to claim 3 and 4, characterized in that the pores of the plastic foam insert (10) at the the cast resin insulation adjacent surfaces (11, 12) open on the edge (13) of the insert on the other hand are closed. Documents considered: British Patent Specification No. 531622.
DEC22895A 1960-12-06 1960-12-06 Detachable connection for electrical components embedded in dimensionally stable insulating material Pending DE1185700B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC22895A DE1185700B (en) 1960-12-06 1960-12-06 Detachable connection for electrical components embedded in dimensionally stable insulating material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC22895A DE1185700B (en) 1960-12-06 1960-12-06 Detachable connection for electrical components embedded in dimensionally stable insulating material

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Publication Number Publication Date
DE1185700B true DE1185700B (en) 1965-01-21

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2157182A1 (en) * 1971-10-29 1973-05-03 Bbc Brown Boveri & Cie ELECTRIC INSULATING BODY MADE OF PORIGINE FOAM PLASTIC
DE2341982A1 (en) * 1973-07-12 1975-01-30 Bbc Brown Boveri & Cie PLASTIC-INSULATED SWITCH BLOCK FOR HIGH-VOLTAGE SWITCHGEAR
DE19604482A1 (en) * 1996-02-08 1997-08-14 Abb Research Ltd Buried gas-insulated HV power cable for population centres
EP3109961A1 (en) * 2015-06-24 2016-12-28 Siemens Aktiengesellschaft Conduit module for a high voltage transmission line which can be buried, high voltage line with conduit modules and method for producing the conduit modules

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB531622A (en) * 1939-07-06 1941-01-08 Pirelli General Cable Works Improvements in or relating to insulated electrical conductors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB531622A (en) * 1939-07-06 1941-01-08 Pirelli General Cable Works Improvements in or relating to insulated electrical conductors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2157182A1 (en) * 1971-10-29 1973-05-03 Bbc Brown Boveri & Cie ELECTRIC INSULATING BODY MADE OF PORIGINE FOAM PLASTIC
DE2341982A1 (en) * 1973-07-12 1975-01-30 Bbc Brown Boveri & Cie PLASTIC-INSULATED SWITCH BLOCK FOR HIGH-VOLTAGE SWITCHGEAR
DE19604482A1 (en) * 1996-02-08 1997-08-14 Abb Research Ltd Buried gas-insulated HV power cable for population centres
EP3109961A1 (en) * 2015-06-24 2016-12-28 Siemens Aktiengesellschaft Conduit module for a high voltage transmission line which can be buried, high voltage line with conduit modules and method for producing the conduit modules

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