EP0155373A2 - Fusible de haute puissance haute tension - Google Patents

Fusible de haute puissance haute tension Download PDF

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Publication number
EP0155373A2
EP0155373A2 EP84114942A EP84114942A EP0155373A2 EP 0155373 A2 EP0155373 A2 EP 0155373A2 EP 84114942 A EP84114942 A EP 84114942A EP 84114942 A EP84114942 A EP 84114942A EP 0155373 A2 EP0155373 A2 EP 0155373A2
Authority
EP
European Patent Office
Prior art keywords
pin
fuse
release
cap
pawl
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.)
Granted
Application number
EP84114942A
Other languages
German (de)
English (en)
Other versions
EP0155373B1 (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 claim 1.
  • 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.
  • full-range fuses are now being offered, which represent a combination of a HV fuse and an overload fuse.
  • this combination is very complex.
  • switch-disconnectors are combined with HV HRC fuses. Since the load-break switch safely masters the currents below three times the nominal fuse current, the object of the invention is to equip a HV fuse in addition to the short-circuit device with an overload device which is capable of overcurrent occurring through the load-break switch connected upstream of the HV fuse switch off.
  • this object is achieved by the measures specified in the main claim and a secondary claim.
  • 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 its own switching capacity.
  • the device can be used several times by resetting the release pin after the bimetal release has cooled down.
  • the unlatching of Lasttr B nnschalters takes place at an overcurrent by the release pin and at short-circuit by the striker of the fuse.
  • the second solution provides a common trigger pin which responds in the event of an overcurrent by the bimetal trigger and in the event of a short circuit by the striker.
  • 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 after Blowing the fuse for an intact fuse is reusable.
  • a HV fuse 1 the most important components of a HV fuse 1 are a main fuse element 2 and a secondary fuse element 4 connected in parallel therewith.
  • the main fuse element consists of two parallel conductors which are wound helically on a ceramic carrier 3 to achieve the conductor length required for the mains voltage.
  • 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 sealed airtight on both sides by caps 7, which are designed as connecting contacts for the fuse holder.
  • a bimetallic release 8 is used, 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 receive 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.
  • the striking pin is surrounded in the cap area by a tubular release pin 11 1. 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 trigger pin. In the event of a short circuit, the striker pin rests against the pawl and presses the bimetal trigger outwards, causing the trigger pin to snap outwards. When returning len can be determined whether the Sahlagstatt triggered nat 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 contains, in addition to the release pin 1 1 nor a solid extension pin 111. This is pressed out in the event of short circuiting the striker pin 5, Waehrens in the case of excess current tripping pin through the tubular Auslose- occurs. 11

Landscapes

  • Fuses (AREA)
  • Switch Cases, Indication, And Locking (AREA)
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 true EP0155373A2 (fr) 1985-09-25
EP0155373A3 EP0155373A3 (en) 1987-04-22
EP0155373B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0881654A1 (fr) * 1997-05-27 1998-12-02 Schneider Electric Sa Fusible électrique
WO2010105648A1 (fr) * 2009-03-16 2010-09-23 Siba Fuses Gmbh & Co. Kg Cartouche fusible d'usage général

Families Citing this family (17)

* 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
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
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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2306153A (en) * 1940-04-10 1942-12-22 Gen Electric Electric circuit interrupting device
US2982834A (en) * 1957-12-27 1961-05-02 Ite Circuit Breaker Ltd Dual element fuse device
BE668548A (fr) * 1964-08-21 1965-12-16
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1463655A1 (de) * 1964-11-24 1969-03-27 Siemens Ag Sicherung,insbesondere strombegrenzende Hochspannungssicherung,mit einer Schlagvorrichtung zur Ausloesung eines Schalters
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2306153A (en) * 1940-04-10 1942-12-22 Gen Electric Electric circuit interrupting device
US2982834A (en) * 1957-12-27 1961-05-02 Ite Circuit Breaker Ltd Dual element fuse device
BE668548A (fr) * 1964-08-21 1965-12-16
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Band 1, Nr. 134, 5. November 1977, Seite 4679 M 77; & JP-A-52 076 509 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0881654A1 (fr) * 1997-05-27 1998-12-02 Schneider Electric Sa Fusible électrique
FR2764108A1 (fr) * 1997-05-27 1998-12-04 Schneider Electric Sa Fusible electrique
WO2010105648A1 (fr) * 2009-03-16 2010-09-23 Siba Fuses Gmbh & Co. Kg Cartouche fusible d'usage général

Also Published As

Publication number Publication date
ATE47250T1 (de) 1989-10-15
DE3409957A1 (de) 1985-09-19
JPS60211735A (ja) 1985-10-24
US4617544A (en) 1986-10-14
EP0155373B1 (fr) 1989-10-11
EP0155373A3 (en) 1987-04-22
JPS6153813B2 (fr) 1986-11-19
DE3480142D1 (en) 1989-11-16
DE3409957C2 (fr) 1989-02-09

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