EP0155373B1 - Fusible de haute puissance haute tension - Google Patents

Fusible de haute puissance haute tension Download PDF

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Publication number
EP0155373B1
EP0155373B1 EP84114942A EP84114942A EP0155373B1 EP 0155373 B1 EP0155373 B1 EP 0155373B1 EP 84114942 A EP84114942 A EP 84114942A EP 84114942 A EP84114942 A EP 84114942A EP 0155373 B1 EP0155373 B1 EP 0155373B1
Authority
EP
European Patent Office
Prior art keywords
fuse
pin
pawl
impact pin
impact
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
EP84114942A
Other languages
German (de)
English (en)
Other versions
EP0155373A2 (fr
EP0155373A3 (en
Inventor
Dietrich Dipl.-Ing. Mooz
Rolf Dirks
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 AT84114942T priority Critical patent/ATE47250T1/de
Publication of EP0155373A2 publication Critical patent/EP0155373A2/fr
Publication of EP0155373A3 publication Critical patent/EP0155373A3/de
Application granted granted Critical
Publication of EP0155373B1 publication Critical patent/EP0155373B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • 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
    • 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
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H01H2085/0258—Structural association of a fuse or a fuse holder with a bimetallic element

Definitions

  • the invention relates to a high-voltage high-performance (HH) fuse according to the preamble of claims 1 and 2.
  • HH high-voltage high-performance
  • Such a high-voltage fuse is, for. B. from FR-A-1 461 736 (Fig. 2, 3) known.
  • HV fuses are devices for the one-time interruption of short-circuit currents in indoor and outdoor switchgear. These fuses are therefore suitable as short-circuit protection against voltage transformers, capacitors, cable branches, transformers and similar devices. They protect downstream devices and lines from the thermal and dynamic effects of large short-circuit currents, which they interrupt as current-limiting fuses when the current rises.
  • the HV fuses are only used for short-circuit protection, the overload protection is taken over by overcurrent devices on the secondary side (low voltage).
  • overcurrent devices on the secondary side (low voltage).
  • the HV fuses cannot switch off currents below their triple nominal current.
  • so-called full-range fuses have recently been offered, which represent a combination of a manual override fuse with an overload fuse.
  • this combination is very complex.
  • Switch disconnectors are generally combined with HV HRC fuses to connect distribution transformers to the medium-voltage network. Since the load-break switch safely masters the currents below three times the nominal fuse current, the object of the invention is to provide an HV fuse in addition to the short-circuit device with an overload device which is able to prevent an overcurrent occurring through the load-break switch connected upstream of the HV fuse switch off.
  • the trigger pin is triggered by a simple bimetal release when an overcurrent occurs and the upstream switch disconnector is released.
  • overcurrents are switched off by the switch disconnector and the HV HRC fuse did not need to be equipped with a switching capacity.
  • the device can be used several times by resetting the release pin after the bimetal release has cooled down.
  • the switch disconnector is released when there is an overcurrent by the tripping pin and in the event of a short circuit by the striker of the fuse.
  • the second solution provides a common release pin that responds in the event of an overcurrent by the bimetal release and in the event of a short circuit by the trigger pin.
  • the overload device is integrated in a cap of the fuse, so that the fuse fits into the fuse holder without additional measures.
  • a special embodiment of the fuse is that the cap with the overload device is designed so that it can be plugged onto a standard fuse (claim 5). It is advantageous here that the overload device can be reused for an intact fuse after the fuse has blown.
  • the main fuse element consists of two parallel conductors to achieve the necessary for the line voltage conductor length helically on a Keramikträ - ger 3 are wound up.
  • the secondary fuse element is usually a resistance wire connected in parallel to the main fuse element, which is inserted in the interior of the ceramic carrier. This resistance wire triggers an interruption detector during melting, which is designed as a striking pin 5.
  • the entire arrangement of the fuse is located in an insulating body 6 which is closed airtight on both sides by caps 7 which are designed as connecting contacts for the fuse holder.
  • a bimetallic release 8 which consists of a metal strip. This metal strip is bent at an angle at its ends, one part of the fastening on the inside of the cap top surface and the other part bent at an angle serving to accommodate a pawl 9.
  • the firing pin has the task of opening the switch disconnector after a short circuit. For this purpose, he passes through an outlet opening 10 on the cap, actuates a lever and hereby opens the upstream switch disconnector. In the event of a short circuit, the fuse must then be replaced will.
  • the striking pin is surrounded in the cap area by a tubular release pin 11. It has the task of tripping in the event of an overcurrent (overload), covering the same path as the striker and fulfilling the same function when opening the upstream switch disconnector as the striker. Both pins work completely independently of each other, but with the aim of switching off the switch disconnector.
  • the trigger pin has on its outer periphery a locking device 12, which serves as a locking point of the pawl 9.
  • the release pin is locked against the pressure of a spring 13 tensioned on the block.
  • the bimetallic release is connected to the fusible conductors via a flexible line 14.
  • a trigger pin 110 is provided, which surrounds a striker pin 50, which is shorter than the length of the trigger pin, as a hollow body.
  • Another pawl 16 is arranged on the bimetallic release 8 above the pawl 9. The pawl 16 is chamfered to secure and engages in a recess of the release pin. In the event of a short circuit, the striker pin hits the pawl and pushes the bimetallic release outwards, causing the release pin to snap outwards. When resetting, it can be determined whether the firing pin has triggered or not.
  • the bimetallic release can also be accommodated in a cap 70 which is designed as a plug-in part for a standard fuse.
  • the plug-in part with an insulating tube 17, which has the length of the cap and the securing attachment 18, is plugged or screwed onto the securing attachment.
  • the cap also contains a massive extension pin 111. In the event of a short circuit, this is pushed out by the striker pin 5, while in the event of an overcurrent, the tubular trigger pin 11 triggers.

Landscapes

  • Fuses (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Claims (6)

1. Fusible de haute puissance et haute tension (HH), comprenant un conducteur fusible principal (2) pour l'interruption du courant de court-circuit, comprenant un conducteur fusible annexe (4) pour la disjonction d'une tige de percussion (5) soumise à une forme élastique, et un corps isolant (6) entourant les deux conducteurs fusibles et obturé des deux côtés de manière étanche à l'air par des capuchons (7) réalisés sous la forme de contacts de raccordements extérieurs, caractérisé en ce que la tige de percussion (5) est entourée, dans la zone de l'un des capuchons (7), par une tige de déclenchement (11) de forme tubulaire et guidée, comme la tige de percussion (5), jusqu'à l'orifice de sortie (10) du capuchon, en ce que, dans ce capuchon, un déclencheur bimétallique (8) est introduit dans le circuit de courant de la sécurité HH (1) qui est pourvue d'un cliquet (9) encliquetant sur la tige de déclenchement (11) et soumis à une contrainte élastique, et en ce que le déclencheur bimétallique (8) est réglé de sorte que, lorsque survient une surintensité, il relâche la tige de déclenchement (11) qui ouvre de son côté un sectionneur à coupure en charge branché en amont.
2. Fusible de haute puissance et haute tension (HH), comprenant un conducteur fusible principal (2) pour l'interruption du courant de court-circuit, comprenant un conducteur fusible annexe (4) pour la disjonction d'une tige de percussion (50) soumise à une forme élastique, et un corps isolant (6) entourant les deux conducteurs fusibles et obturé des eux côtés de manière étanche à l'air par des capuchons (7) réalisés sous la forme de contacts de raccordement entre les deux conducteurs fusibles et les raccordements extérieurs, caractérisé en ce que la tige de percussion (50) est entourée dans la zone de l'un des capuchons (7) par une tige de déclenchement (110) de forme tubulaire, en ce que la tige de percussion (50) présente par rapport à la tige de déclenchement (110) une longueur plus courte, en ce que, dans ce capuchon (7), un déclencheur bimétallique (8) présente, outre un premier cliquet (9), un second cliquet (16) s'engageant dans un évidement de la tige de déclenchement de forme tubulaire (110), et en ce que, lorsque survient un courant de court-circuit, il relâche la tige de déclenchement (11) le deuxième cliquet (16) sollicité par la tige de percussion (110) libère la tige de déclenchement.
3. Fusible selon l'une des revendications 1 ou 2, caractérisé en ce que le déclencheur bimétali- que (8) est réalisé sous la forme d'une bande s'étendant parallèlement à la tige de déclenchement (11 ; 110) et dont la longueur est de dimension telle que le cliquet (9) monté à l'extrémité libre de la bande maintienne fixée la tige de déclenchement face à la pression du ressort (13) serré à bloc, le cliquet s'engageant sur un dispositif d'encliquetage (12) de la tige de déclenchement qui est monté à la périphérie dans la zone de l'extrémité ouverte.
4. Fusible selon l'une des revendications 1 à 3, caractérisé en ce que la valeur de réaction du déclencheur bimétallique (8) est réglable au moyen d'une vis (15) à actionner de l'extérieur du capuchon (7).
5. Fusible selon l'une des revendications 1, 3 et 4, caractérisé en ce que la tige de percussion (5) est prolongée dans la longueur du capuchon d'une tige de déclenchement (111) massive et en ce que le capuchon (70) est appliquée avec le déclenchement bimétallique (8) sur l'appendice (18) du fusible, au moyen d'un tube isolant (17).
6. Fusible selon l'une des revendications 1 à 5, caractérisé en ce que le capuchon (70) avec le disjoncteur bimétallique (8) est vissable avec le fusible (1) et interchangeable parmi différentes sécurités.
EP84114942A 1984-03-17 1984-12-07 Fusible de haute puissance haute tension Expired EP0155373B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84114942T ATE47250T1 (de) 1984-03-17 1984-12-07 Hochspannungs-hochleistungs-sicherung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843409957 DE3409957A1 (de) 1984-03-17 1984-03-17 Hochspannungs-hochleistungs-sicherung
DE3409957 1984-03-17

Publications (3)

Publication Number Publication Date
EP0155373A2 EP0155373A2 (fr) 1985-09-25
EP0155373A3 EP0155373A3 (en) 1987-04-22
EP0155373B1 true EP0155373B1 (fr) 1989-10-11

Family

ID=6230897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114942A Expired EP0155373B1 (fr) 1984-03-17 1984-12-07 Fusible de haute puissance haute tension

Country Status (5)

Country Link
US (1) US4617544A (fr)
EP (1) EP0155373B1 (fr)
JP (1) JPS60211735A (fr)
AT (1) ATE47250T1 (fr)
DE (2) DE3409957A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3607596A1 (de) * 1986-03-07 1987-09-10 Ritz Messwandler Kg Hochspannungs-sicherung
US4766408A (en) * 1987-09-03 1988-08-23 Westinghouse Electric Corp. Current limiting fuse with indicator
FR2764108B1 (fr) * 1997-05-27 1999-07-30 Schneider Electric Sa Fusible electrique
US6133818A (en) * 1999-08-11 2000-10-17 Space Systems/Loral, Inc. Redundant fuse wire release device
US7350445B2 (en) * 2003-08-20 2008-04-01 Sd3, Llc Brake cartridge for power equipment
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment
US7055417B1 (en) * 1999-10-01 2006-06-06 Sd3, Llc Safety system for power equipment
US7210383B2 (en) 2000-08-14 2007-05-01 Sd3, Llc Detection system for power equipment
US9927796B2 (en) 2001-05-17 2018-03-27 Sawstop Holding Llc Band saw with improved safety system
US7610836B2 (en) * 2000-08-14 2009-11-03 Sd3, Llc Replaceable brake mechanism for power equipment
WO2003041855A1 (fr) * 2001-11-15 2003-05-22 Powerspan Corp. Element fusible de reacteur a decharge
CA2380146C (fr) * 2002-03-02 2011-01-04 S&C Electric Company Fusible haute tension
EP1369890A1 (fr) * 2002-06-07 2003-12-10 Abb Research Ltd. Percuteur de signalisation pour fusible haute tension
US7659804B2 (en) 2004-09-15 2010-02-09 Littelfuse, Inc. High voltage/high current fuse
WO2010105648A1 (fr) * 2009-03-16 2010-09-23 Siba Fuses Gmbh & Co. Kg Cartouche fusible d'usage général
US9085377B2 (en) * 2011-05-17 2015-07-21 Space Systems/Loral, Llc Redundant fuse wire release device
US9490096B2 (en) 2013-03-14 2016-11-08 Mersen Usa Newburyport-Ma, Llc Medium voltage controllable fuse
US9324533B2 (en) 2013-03-14 2016-04-26 Mersen Usa Newburyport-Ma, Llc Medium voltage controllable fuse
DE102022002431A1 (de) 2022-07-05 2024-01-11 Siba Fuses Gmbh Verwendung einer HH-Sicherung für ein Drop-Out-Sicherungssystem

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH219782A (de) * 1940-04-10 1942-02-28 Licentia Gmbh Schmelzsicherung mit Anzeige- und Auslöseeinrichtung.
US2982834A (en) * 1957-12-27 1961-05-02 Ite Circuit Breaker Ltd Dual element fuse device
AT253592B (de) * 1964-08-21 1967-04-10 Continental Elektro Ind Ag Auslöse- oder Anzeigevorrichtung für elektrische Sicherungen
DE1463655A1 (de) * 1964-11-24 1969-03-27 Siemens Ag Sicherung,insbesondere strombegrenzende Hochspannungssicherung,mit einer Schlagvorrichtung zur Ausloesung eines Schalters
FR1461736A (fr) * 1965-11-12 1966-02-25 Siemens Ag Coupe-circuit à fusible, en particulier coupe-circuit haute tension de limitation d'intensité, comportant un dispositif de percussion pour le déclenchement d'un interrupteur
DE1920825A1 (de) * 1969-04-24 1970-11-05 Fritz Driescher Spez Fabrik Fu Hochspannungs-Hochleistungssicherung
US3593249A (en) * 1969-05-22 1971-07-13 Bel Aire Sales Corp Circuit breaker with bimetallic element
DE2547990A1 (de) * 1975-10-27 1977-04-28 Wickmann Werke Ag Hochspannungssicherung
JPS5276509A (en) * 1975-12-23 1977-06-28 Toshiba Corp Fuse provided with overload detecting unit
US4153893A (en) * 1977-09-27 1979-05-08 S&C Electric Company End fitting for high-voltage fuse
JPS5722602U (fr) * 1980-07-15 1982-02-05

Also Published As

Publication number Publication date
ATE47250T1 (de) 1989-10-15
DE3409957A1 (de) 1985-09-19
JPS60211735A (ja) 1985-10-24
EP0155373A2 (fr) 1985-09-25
US4617544A (en) 1986-10-14
EP0155373A3 (en) 1987-04-22
JPS6153813B2 (fr) 1986-11-19
DE3480142D1 (en) 1989-11-16
DE3409957C2 (fr) 1989-02-09

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