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EP0145855B1 - Connection device with a fuse for enclosed medium voltage switchgear - Google Patents

Connection device with a fuse for enclosed medium voltage switchgear Download PDF

Info

Publication number
EP0145855B1
EP0145855B1 EP84111029A EP84111029A EP0145855B1 EP 0145855 B1 EP0145855 B1 EP 0145855B1 EP 84111029 A EP84111029 A EP 84111029A EP 84111029 A EP84111029 A EP 84111029A EP 0145855 B1 EP0145855 B1 EP 0145855B1
Authority
EP
European Patent Office
Prior art keywords
connexion
fuse
bolt
switchgear
fuse according
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.)
Expired
Application number
EP84111029A
Other languages
German (de)
French (fr)
Other versions
EP0145855A3 (en
EP0145855A2 (en
Inventor
Rolf Dirks
Horst Deharde
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.)
Felten and Guilleaume Energietechnik AG
Original Assignee
Felten and Guilleaume Energietechnik 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 Felten and Guilleaume Energietechnik AG filed Critical Felten and Guilleaume Energietechnik AG
Priority to AT84111029T priority Critical patent/ATE30810T1/en
Publication of EP0145855A2 publication Critical patent/EP0145855A2/en
Publication of EP0145855A3 publication Critical patent/EP0145855A3/en
Application granted granted Critical
Publication of EP0145855B1 publication Critical patent/EP0145855B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements
    • H01H85/306—Movable indicating elements acting on an auxiliary switch or contact

Definitions

  • the invention relates to a fuse connection device for encapsulated medium-voltage switchgear according to the preamble of claim 1.
  • EP-A-0 110 008 which belongs to the state of the art according to Art 54 (3) EPC, a fuse is used in the fuse connection device, which causes an electrical disconnection. When triggered, the striker pin of the fuse has no function. It can It may be useful to have an alternative to triggering by electrical means.
  • the invention is therefore based on the object of strengthening the fuse connection device to such an extent that mechanical triggering is also possible.
  • FIG. 1 An embodiment of the invention is shown in a drawing and is explained in more detail below:
  • the figure shows a fuse connection device with mechanical triggering in side view, in section.
  • a bushing 3 is used in the wall 2 of a switchgear 1.
  • the implementation has the task of supplying a cable conductor 4 from the interior of the switchgear to an HV HRC cartridge 7.
  • a connecting part 5 is used, which has an interior 12 with three openings 13, 15 and 17 to the outside.
  • the opening 13 is designed conically on the inside such that an outer cone 14 of the bushing 3 can be inserted into this opening.
  • the cable conductor 4 in the bushing is connected at the end within the interior with a tab 20 which is supported on the inner edges of the connection part and is then fixed with a screw connection.
  • the tab serves the connection between the cable conductor and a contact cap 19 of the fuse cartridge.
  • the second opening 15 is used to receive the fuse cartridge, which is inserted so far into the connecting part that the contact cap is located inside the interior.
  • the live parts of the fuse cartridge are now completely encapsulated.
  • the connecting part is made of a rubber-elastic material and includes the porcelain body 16 of the fuse cartridge, so that a good seal is achieved at this point.
  • the third opening 17 serves to receive a removable plug 18. Through this opening, the condition of the striking pin 21 (release pin) of the HH safety cartridge can be viewed.
  • a bolt 25 is arranged within the connecting part.
  • the wall section of the connecting part 5 closest to the bolt head is designed as a force transmission zone 26.
  • circular grooves 27 and 28 are provided on the inside and outside, which together with the elasticity of the material of the connecting part 5 ensure sufficient bulging at this point.
  • a lever 29 is attached, one end of which is placed on the power transmission zone 26 and the other end of which is operatively connected to the mechanical drive of a switching device.
  • the bolt 25 is inserted in a holder 30 which is equipped with two arms 31 and 32 lying one above the other.

Landscapes

  • Fuses (AREA)

Abstract

1. A connexion device with a fuse for enclosed medium voltage switchgear, with at least one guide (3) inserted into the wall (2) of the switchgear (1) for a free cable conduit (4) and having a connexion member (5), which rests on the guide (3) and has a recess (15) in which an HH fuse cartridge is inserted at one end and which engages with its other end in the recess of a further connexion piece which is connected to a cable end, and that the ends of the HH fuse cartridge are connected to the free cable conduit (4) by means of contact elements (20), characterised in that a bolt (25) is arranged in the extended axis of the striker (21) of the HH fuse cartridge (7) inside the connexion member (5), that the wall of the connexion member opposite the bolt head is designed as a power transfer zone (26), and that outside the connexion member a lever (29) is mounted, the one end of which is disposed on the power transfer zone (26) and the other end of which is operatively connected to the mechanical drive of a switchgear.

Description

Die Erfindung bezieht sich auf eine Sicherungsanschlußeinrichtung für gekapselte Mitteispannungsschaltanlagen gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a fuse connection device for encapsulated medium-voltage switchgear according to the preamble of claim 1.

Nach der EP-A-O 110 008, die zum Stand der Technik gemäss Art 54(3) EPÜ gehört, ist in der Sicherungsanschlußeinrichtung eine Sicherung eingesetzt, die auf elektrischem Wege eine Ausschaltung herbeiführt. Bei einer Auslösung übt der Schlagstift der Sicherung keine Funktion aus. Es kann u. U. von Nutzen sein, eine Alternative zu der Auslösung auf elektrischem Wege zu haben.According to EP-A-0 110 008, which belongs to the state of the art according to Art 54 (3) EPC, a fuse is used in the fuse connection device, which causes an electrical disconnection. When triggered, the striker pin of the fuse has no function. It can It may be useful to have an alternative to triggering by electrical means.

Der Erfindung liegt daher die Aufgabe zugrunde, die Sicherungsanschlußeinrichtung soweit zu ertüchtigen, daß auch eine mechanische Auslösung möglich ist.The invention is therefore based on the object of strengthening the fuse connection device to such an extent that mechanical triggering is also possible.

Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen konstruktiven Maßnahmen gelöst.This object is achieved by the design measures specified in the characterizing part of claim 1.

Die mit der Erfindung erzielten Vorteile bestehen darin, daß die mechanische Auslösung ermöglicht wird, dem Kunden die bisherige Betriebsweise erhalten bleibt und viele auf Schlagstiften beruhende Spezifikationen und Liefervor- . schriften eingehalten werden können.The advantages achieved with the invention are that the mechanical triggering is made possible, the customer's previous mode of operation is retained and many specifications and delivery methods based on hammer pins. writings can be adhered to.

Vorteilhafte Aus- und Weiterbildungen des Gegenstandes nach Anspruch 1 sind den Unteransprüchen zu entnehmen.Advantageous developments and further developments of the subject matter according to claim 1 can be found in the dependent claims.

Hierbei erweist es sich als zweckmäßig, die Kraftübertragungszone des elastischen Anschlußteils mit kreisförmigen Rillen innen und außen auszubilden (Anspruch 2), so daß eine nutzbare Auswölbung gewährleistet ist.It proves to be expedient to design the force transmission zone of the elastic connecting part with circular grooves on the inside and outside (claim 2), so that a usable bulge is ensured.

Um eine sichere Führung des Bolzens zu erreichen, ist es zweckmäßig, diesen in einer Halterung mit zwei übereinander liegenden Armen zu führen (Anspruch 6).In order to achieve safe guidance of the bolt, it is expedient to guide it in a holder with two arms lying one above the other (claim 6).

Um die Wandung des Anschlußteils vor Beschädigungen zu schützen, erscheint es zweckmäßig, den mit einem halbrunden Kopf versehenen Bolzen in Kunststoff auszuführen (Ansprüche 7 und 8).In order to protect the wall of the connecting part from damage, it appears expedient to design the stud provided with a semicircular head in plastic (claims 7 and 8).

Ein Ausführungsbeispiel der Erfindung ist in einer Zeichnung dargestellt und wird im folgenden näher erläutert : Die Figur zeigt eine Sicherungsanschlußeinrichtung mit mechanischer Auslösung in Seitenansicht, im Schnitt.An embodiment of the invention is shown in a drawing and is explained in more detail below: The figure shows a fuse connection device with mechanical triggering in side view, in section.

Wie die Figur zeigt, ist in der Wand 2 einer Schaltanlage 1 eine Durchführung 3 eingesetzt. Die Durchführung hat die Aufgabe, einen Kabelleiter 4 aus dem Inneren der Schaltanlage einer HH-Sicherungspatrone 7 zuzuführen. Hierzu dient ein Anschlußteil 5, das einen Innenraum 12 mit drei Öffnungen 13, 15 und 17 nach außen hin besitzt. Die Öffnung 13 ist innen konusförmig derart gestaltet, daß ein Außenkonus 14 der Durchführung 3 in diese Öffnung einsteckbar ist. Um einen festen Sitz des Anschlußteils auf die Durchführung zu erreichen, ist der in der Durchführung befindliche Kabelleiter 4 am Ende innerhalb des Innenraumes mit einer Lasche 20 verbunden, die sich an den Innenkanten des Anschlußteils abstützt und anschließend mit einer Schraubverbindung festgesetzt ist. Die Lasche dient der Verbindung zwischen dem Kabelleiter und einer Kontaktkappe 19 der Sicherungspatrone. Die zweite Öffnung 15 dient der Aufnahme der Sicherungspatrone, die so weit in das Anschlußteil eingeschoben ist, daß die Kontaktkappe sich innerhalb des Innenraumes befindet. Damit sind die spannungsführenden Teile der Sicherungspatrone vollständig eingekapselt. Das Anschlußteil ist aus einem gummielastischen Werkstoff hergestellt und umfaßt den Porzellankörper 16 der Sicherungspatrone saugend, so daß an dieser Stelle eine gute Dichtung erreicht wird. Die dritte Öffnung 17 schließlich dient der Aufnahme eines herausnehmbaren Stopfens 18. Durch diese Öffnung kann der Zustand des Schlagstiftes 21 (Auslösestiftes) der HH-Sicherungspatrone in Augenschein genommen werden.As the figure shows, a bushing 3 is used in the wall 2 of a switchgear 1. The implementation has the task of supplying a cable conductor 4 from the interior of the switchgear to an HV HRC cartridge 7. For this purpose, a connecting part 5 is used, which has an interior 12 with three openings 13, 15 and 17 to the outside. The opening 13 is designed conically on the inside such that an outer cone 14 of the bushing 3 can be inserted into this opening. In order to achieve a tight fit of the connection part on the bushing, the cable conductor 4 in the bushing is connected at the end within the interior with a tab 20 which is supported on the inner edges of the connection part and is then fixed with a screw connection. The tab serves the connection between the cable conductor and a contact cap 19 of the fuse cartridge. The second opening 15 is used to receive the fuse cartridge, which is inserted so far into the connecting part that the contact cap is located inside the interior. The live parts of the fuse cartridge are now completely encapsulated. The connecting part is made of a rubber-elastic material and includes the porcelain body 16 of the fuse cartridge, so that a good seal is achieved at this point. Finally, the third opening 17 serves to receive a removable plug 18. Through this opening, the condition of the striking pin 21 (release pin) of the HH safety cartridge can be viewed.

In der Achse des Schlagstiftes 21 der HH-Sicherungspatrone ist ein Bolzen 25 innerhalb des Anschlußteils angeordnet. Der dem Bolzenkopf nächstgelegene Wandungsabschnitt des Anschlußteils 5 ist als eine Kraftübertragungszone 26 ausgebildet. Hierzu sind im Inneren und Äußeren kreisförmige Rillen 27 und 28 angebracht, die zusammen mit der Elastizität des Werkstoffs des Anschlußteils 5 für eine ausreichende Auswölbung an dieser Stelle sorgen. Außerhalb des Anschlußteils ist ein Hebel 29 angebracht, dessen eines Ende an die Kraftübertragungszone 26 gelegt ist und dessen anderes Ende mit dem mechanischen Antrieb eines Schaltgerätes in Wirkverbindung steht. Um dem Bolzen 25 eine sichere Führung zu geben, ist dieser in einer Halterung 30 eingesetzt, die mit zwei übereinanderliegenden Armen 31 und 32 ausgerüstet ist.In the axis of the striker 21 of the HV backup cartridge, a bolt 25 is arranged within the connecting part. The wall section of the connecting part 5 closest to the bolt head is designed as a force transmission zone 26. For this purpose, circular grooves 27 and 28 are provided on the inside and outside, which together with the elasticity of the material of the connecting part 5 ensure sufficient bulging at this point. Outside the connection part, a lever 29 is attached, one end of which is placed on the power transmission zone 26 and the other end of which is operatively connected to the mechanical drive of a switching device. In order to give the bolt 25 a safe guidance, it is inserted in a holder 30 which is equipped with two arms 31 and 32 lying one above the other.

Claims (7)

1. A connexion device with a fuse for enclosed medium voltage switchgear, with at least one guide (3) inserted into the wall (2) of the switchgear (1) for a free cable conduit (4) and having a connexion member (5), which rests on the guide (3) and has a recess (15) in which an HH fuse cartridge is inserted at one end and which engages with its other end in the recess of a further connexion piece which is connected to a cable end, and that the ends of the HH fuse cartridge are connected to the free cable conduit (4) by means of contact elements (20), characterised in that a bolt (25) is arranged in the extended axis of the striker (21) of the HH fuse cartridge (7) inside the connexion member (5), that the wall of the connexion member opposite the bolt head is designed as a power transfer zone (26), and that outside the connexion member a lever (29) is mounted, the one end of which is disposed on the power transfer zone (26) and the other end of which is operatively connected to the mechanical drive of a switchgear.
2. A connexion device with a fuse according to claim 1, characterised in that the power transfer zone (26) of the connexion member (5) is substantially circular, circular grooves (27, 28) being provided with varying diameters inside and outside the connexion member (5).
3. A connexion device with a fuse according to claim 1 or 2, characterised in that the bolt (25) is disposed in a mounting piece (30).
4. A connexion device with a fuse according to any one of claims 1 to 3, characterised in that the mounting piece (30) is secured to an angular strap (20).
5. A connexion device with a fuse according to any one of claims 1 to 4, characterised in that the mounting piece (30) is provided with two arms (31, 32) spaced apart above one another, in which bores are arranged at the end for receiving the bolt (25).
6. A connexion device with a fuse according to any one of claims 1 to 5, characterised in that the bolt (25) is provided with a hemispherical head.
7. A connexion device with a fuse according to any one of claims 1 to 5, characterised in that the bolt (25) is made of plastics material.
EP84111029A 1983-12-01 1984-09-15 Connection device with a fuse for enclosed medium voltage switchgear Expired EP0145855B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84111029T ATE30810T1 (en) 1983-12-01 1984-09-15 FUSE CONNECTION EQUIPMENT FOR ENCLOSED MEDIUM VOLTAGE SWITCHGEAR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3343427 1983-12-01
DE19833343427 DE3343427A1 (en) 1983-12-01 1983-12-01 FUSE CONNECTING DEVICE FOR ENCLOSED MEDIUM VOLTAGE SWITCHGEAR

Publications (3)

Publication Number Publication Date
EP0145855A2 EP0145855A2 (en) 1985-06-26
EP0145855A3 EP0145855A3 (en) 1986-06-25
EP0145855B1 true EP0145855B1 (en) 1987-11-11

Family

ID=6215727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111029A Expired EP0145855B1 (en) 1983-12-01 1984-09-15 Connection device with a fuse for enclosed medium voltage switchgear

Country Status (3)

Country Link
EP (1) EP0145855B1 (en)
AT (1) ATE30810T1 (en)
DE (1) DE3343427A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3804652A1 (en) * 1988-02-15 1989-08-17 Guldager Electrolyse Method for removing oxygen dissolved in water
DE19519168C1 (en) * 1995-05-24 1996-08-08 Felten & Guilleaume Energie Electrical load isolating-switch with fuse
CN112825294B (en) * 2019-11-21 2022-11-29 河南森源电气股份有限公司 Tripping mechanism of fuse

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2920153A1 (en) * 1979-05-18 1980-11-27 Krone Gmbh Medium voltage switching unit using insulating gas, or liq. - has fuse support housing with side outlets carrying caps forced off by gas pressure

Also Published As

Publication number Publication date
DE3343427A1 (en) 1985-06-13
ATE30810T1 (en) 1987-11-15
DE3343427C2 (en) 1991-01-17
EP0145855A3 (en) 1986-06-25
EP0145855A2 (en) 1985-06-26

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