ATE548786T1 - DAMAGE-LIMITING SWITCHING DEVICE - Google Patents

DAMAGE-LIMITING SWITCHING DEVICE

Info

Publication number
ATE548786T1
ATE548786T1 AT08803906T AT08803906T ATE548786T1 AT E548786 T1 ATE548786 T1 AT E548786T1 AT 08803906 T AT08803906 T AT 08803906T AT 08803906 T AT08803906 T AT 08803906T AT E548786 T1 ATE548786 T1 AT E548786T1
Authority
AT
Austria
Prior art keywords
damage
switching element
fixing device
surge arrester
event
Prior art date
Application number
AT08803906T
Other languages
German (de)
Inventor
Arnd Erhardt
Stefanie Schreiter
Raimund Koenig
Wilhelm Hohenwaldt
Georg Wittmann
Edmund Zaeuner
Original Assignee
Dehn & Soehne
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
Priority claimed from DE102007042989A external-priority patent/DE102007042989A1/en
Application filed by Dehn & Soehne filed Critical Dehn & Soehne
Application granted granted Critical
Publication of ATE548786T1 publication Critical patent/ATE548786T1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/12—Overvoltage protection resistors
    • H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuses (AREA)
  • Thermally Actuated Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Transmitters (AREA)

Abstract

The invention relates to a damage-limiting switching device for surge arresters such as varistors, spark gaps or similar means, comprising a movable switching element, which is conductive or has conductive sections and which is held under mechanical prestress by a fixing device, wherein the fixing device releases the switching element on heating, with the result that said switching element bridges or connects the surge arrester connection contacts or disconnects at least one of the connection contacts. According to the invention, the fixing device is arranged directly at or on the surge arrester at a point with the greatest heating to be expected in the event of overload and has a minimized thermal capacity. In terms of the method, in order to ensure the operation of the damage-limiting switching device, the surge arrester is provided with a separate, erosion-resistant encapsulation in order to collect exhaust heat produced in the event of damage from the resultant arc, wherein the collected thermal energy is supplied in concentrated form to a switching element in the form of a disconnection apparatus or a short-circuiting device for the actuation thereof.
AT08803906T 2007-09-10 2008-09-09 DAMAGE-LIMITING SWITCHING DEVICE ATE548786T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007042989A DE102007042989A1 (en) 2007-05-29 2007-09-10 Short-circuiting device for surge arresters
DE102008038963A DE102008038963A1 (en) 2008-08-13 2008-08-13 Damage limiting switching device for surge arresters such as varistors, spark gaps or the like means
PCT/EP2008/061938 WO2009034081A1 (en) 2007-09-10 2008-09-09 Damage-limiting switching device for surge arresters such as varistors, spark gaps or similar means

Publications (1)

Publication Number Publication Date
ATE548786T1 true ATE548786T1 (en) 2012-03-15

Family

ID=40085666

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08803906T ATE548786T1 (en) 2007-09-10 2008-09-09 DAMAGE-LIMITING SWITCHING DEVICE

Country Status (7)

Country Link
EP (1) EP2188876B1 (en)
CN (1) CN101836340B (en)
AT (1) ATE548786T1 (en)
DE (1) DE102008038963A1 (en)
PL (1) PL2188876T3 (en)
RU (1) RU2010110463A (en)
WO (1) WO2009034081A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009048045B4 (en) * 2009-10-02 2011-06-01 Phoenix Contact Gmbh & Co. Kg Snubber
DE102011001977C5 (en) 2011-04-12 2015-12-03 Phoenix Contact Gmbh & Co. Kg Two-stage switch-off device for a varistor
DE102012002962A1 (en) * 2012-02-16 2013-08-22 Phoenix Contact Gmbh & Co. Kg Short-circuiting device for protecting user working in electrical system, has electrodes connected with connection portions of monitored user so that current path is connected parallel with switching element for user
DE202014002496U1 (en) * 2014-03-20 2014-04-17 Dehn + Söhne Gmbh + Co. Kg Overvoltage protection device, comprising at least one surge arrester and a thermally triggered, spring-loaded short-circuit switching device connected in parallel with the surge arrester
EP3189566B1 (en) * 2014-09-05 2020-03-25 DEHN SE + Co KG Arrangement for secure system isolation of surge arresters, particularly varistors, in the presence of temporary overvoltages

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2634479A1 (en) * 1976-07-31 1978-02-02 Schiederwerk Schieder Kg K Varistor with protective device against overheating - uses springy strip which short-circuits varistor when it reaches specified temp.
DE3318588A1 (en) * 1983-05-21 1984-11-22 Brown, Boveri & Cie Ag, 6800 Mannheim VARISTOR LOCKING ELEMENT
DE3606287A1 (en) 1986-02-27 1987-09-03 Dehn & Soehne Overvoltage protection arrangement
DE3632224A1 (en) 1986-09-23 1988-04-07 Bettermann Obo Ohg Device for monitoring varistors which are integrated in a circuit
DE3734214A1 (en) 1987-10-09 1989-04-20 Dehn & Soehne Arrangement for disconnecting a varistor
DE3805890C2 (en) 1987-10-24 1995-11-23 Bettermann Obo Ohg Device for monitoring the function of surge arresters
JPH03252074A (en) * 1990-03-01 1991-11-11 Mitsubishi Electric Corp Separating device for electric apparatus
DE4241311C2 (en) 1992-12-08 1995-06-08 Phoenix Contact Gmbh & Co Temperature switch with a block housing
FR2756673B1 (en) * 1996-11-29 2003-05-30 Soule Materiel Electr PROTECTION DEVICE FOR TELEPHONE LINES
US6304166B1 (en) * 1999-09-22 2001-10-16 Harris Ireland Development Company, Ltd. Low profile mount for metal oxide varistor package and method

Also Published As

Publication number Publication date
EP2188876B1 (en) 2012-03-07
WO2009034081A1 (en) 2009-03-19
PL2188876T3 (en) 2012-08-31
EP2188876A1 (en) 2010-05-26
DE102008038963A1 (en) 2010-02-18
CN101836340B (en) 2014-04-02
RU2010110463A (en) 2011-10-20
CN101836340A (en) 2010-09-15

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