WO1998006111A1 - Limiteur de surtension - Google Patents

Limiteur de surtension Download PDF

Info

Publication number
WO1998006111A1
WO1998006111A1 PCT/DE1997/001595 DE9701595W WO9806111A1 WO 1998006111 A1 WO1998006111 A1 WO 1998006111A1 DE 9701595 W DE9701595 W DE 9701595W WO 9806111 A1 WO9806111 A1 WO 9806111A1
Authority
WO
WIPO (PCT)
Prior art keywords
surge arrester
conductor
contact
housing
signaling
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.)
Ceased
Application number
PCT/DE1997/001595
Other languages
German (de)
English (en)
Inventor
Aram Ter Markarians
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to DE19780816T priority Critical patent/DE19780816D2/de
Publication of WO1998006111A1 publication Critical patent/WO1998006111A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H02H3/048—Checking overvoltage diverters

Definitions

  • the invention relates to a surge arrester for high or medium voltage
  • surge arresters To control overvoltages in high or medium voltage systems, it is known to use surge arresters. Such surge arresters have a non-linear resistance characteristic, so that voltage increases that exceed a predefinable value are limited.
  • Metal oxide in particular Zmkoxid (ZnO) is preferably used as the material for the arresters.
  • ZnO Zmkoxid
  • a corresponding number of ZnO disks are stacked on top of one another and housed in a tubular housing.
  • the invention is based on the object of specifying a surge arrester in which an error state can be signaled.
  • the surge arrester now has signaling means which, in the event of a fault, allow the fault state to be signaled.
  • An on-site inspection of the voltage arrester is no longer absolutely necessary.
  • the conductor serves as a breaking point designed as a signaling contact.
  • the conductor can comprise a contact arrangement which can be released for interruption. The function of the signaling contact is established by simple, easily available means.
  • the surge arrester preferably has a contact arrangement which comprises a plug and a socket part. One part can be firmly connected to the housing and the other part can be free. This provides a signaling contact that can be restored and implemented with standard components.
  • the contact arrangement is preferably on a first free one
  • End region or end of the housing arranged. This applies in particular to the design of the surge arrester with a tubular housing.
  • the attachment of the contact arrangement is particularly easy. It is advantageous if the first end region is formed by a base plate. Possibly. can also be designed in its dimensioning as a predetermined breaking point, so that when the surge arrester bursts, the signaling contact formed is specifically opened and thus responds.
  • the housing with its second end region can be fixedly attached to a switchgear assembly and the free part can be connected to the second end region or the switchgear assembly at least at a predeterminable distance.
  • the surge arrester can be fastened to a connection pot of the respective switchgear with end-side fastening means.
  • a signaling line connected to a signaling device is then electrically connected to the conductor. In the event of an error, an interruption then takes place.
  • the figure shows a basic illustration of a cable connection pot 1 of a medium-voltage switchgear in a combined side and sectional view.
  • Reference number 3 denotes a connection end of an encapsulation 3 of a gas-insulated switchgear part which ends in a bottom area 4 of a switchgear (not shown in more detail).
  • Reference numbers 9 designate plug connections for cable connections or plugs 11, with the aid of which cables 13 can be connected to the switchgear assembly.
  • the plug connections 9 are generally standardized.
  • a tubular surge arrester 17 is connected to the latter via a connection pot 15.
  • the surge arrester 17 is designed in accordance with the prior art and has a tubular shape. It essentially comprises a tubular housing 19, which is preferably made of metal. Abieiter disks, not shown in detail, are arranged in a stack in its interior. The conductor stack is contacted at the free first end 20 of the conductor 17 with the first end region, which is connected to earth via an additional line or via the metallic housing 19 and the metallic base plate 21 of the cable connection pot 1. In this way, overvoltages can now be derived from conductor 7 to earth.
  • a conductor which in the present case is formed by a contact arrangement 23.
  • One part of the contact arrangement 23, in particular the plug 25, is firmly connected to the bottom 27 of the surge arrester 17.
  • the socket 29 arranged on the plug 25 is electrically connected to a signaling device 31.
  • the contact arrangement 23 is released when the surge arrester 17 changes mechanically, so that the signaling contact 31 can be signaled by the signaling contact which is thereby opened.
  • the socket 29 is mechanically connected to the base plate 21 or the second end 22 via its connecting cable 33.
  • this connection can also be done by another fastening option, e.g. a rod or a flexible connection.
  • the socket 29 is thus connected to the base 21 at a predeterminable distance. If the surge arrester 17 is destroyed, in particular in the event of an explosion, the plug 25 is moved away from the base plate 21, so that the contact arrangement 23 is released. This is recorded in the message system.
  • the contact arrangement 23 can also be formed by another conductor arranged in the first end region 19, which performs the function of the signaling contact.
  • a conductor glued onto the first end 19 fulfills this function, which is connected on the one hand to earth and on the other hand to the signaling device 31.
  • This version also requires a mechanical connection of the conductor to the floor.
  • the present signaling device 31 has, for example, a signaling relay 35 with an associated contact clock 37, which activates a lamp 39.
  • the contact 37 electrically connects the illuminant to a voltage source U.
  • the signaling relay 35 is energized in the idle state, the contact 37 being open.
  • the signaling relay 35 drops out, as a result of which the circuit for the illuminant 39 is closed.
  • the present idea is suitable for surge arresters in high- or medium-voltage systems, with a particularly simple measure, namely merely the arrangement of a detachable contact arrangement or a separable conductor in a destructible area of the surge arrester, enabling the generation of an error signal.
  • the surge arrester can remain structurally unchanged. This provides a particularly inexpensive improvement for the arrester. It is of course also possible to retrofit existing systems with such signaling means.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Thermistors And Varistors (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

Afin de faciliter la signalisation d'erreurs dans un limiteur de surtension (17) pour haute et moyenne tension, il est prévu, selon l'invention, de placer un conducteur, notamment un dispositif de contact (23) dans une zone destructible de son boîtier (19). Lors de la destruction de ladite zone, le conducteur est coupé et sert ainsi de contact de signalisation ouvert, cet état étant signalé par une unité de signalisation (31) associée.
PCT/DE1997/001595 1996-08-01 1997-07-29 Limiteur de surtension Ceased WO1998006111A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19780816T DE19780816D2 (de) 1996-08-01 1997-07-29 Überspannungsableiter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29613325.6 1996-08-01
DE29613325U DE29613325U1 (de) 1996-08-01 1996-08-01 Überspannungsableiter

Publications (1)

Publication Number Publication Date
WO1998006111A1 true WO1998006111A1 (fr) 1998-02-12

Family

ID=8027283

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/001595 Ceased WO1998006111A1 (fr) 1996-08-01 1997-07-29 Limiteur de surtension

Country Status (2)

Country Link
DE (2) DE29613325U1 (fr)
WO (1) WO1998006111A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10060450C2 (de) * 2000-10-23 2002-10-24 Progeo Monitoring Gmbh Vorrichtung zur Messung von Potentialverteilungen im Erdreich

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131630A1 (de) * 1981-08-10 1983-02-24 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum schutz von ueber anschlussleitungen angeschalteten elektronischen einrichtungen
EP0262056A1 (fr) * 1986-08-28 1988-03-30 FERRAZ Société Anonyme Indicateur pour la signalisation de la mise en court-circuit d'un parafoudre
EP0521805A1 (fr) * 1991-07-03 1993-01-07 FERRAZ Société Anonyme Indicateur de défaut pour un parafoudre
US5434550A (en) * 1994-04-07 1995-07-18 Hubbell Incorporated Arrester disconnector
WO1995028024A1 (fr) * 1994-04-12 1995-10-19 Telefonaktiebolaget Lm Ericsson Dispositif signalant un limiteur de surtension ayant saute

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH615784A5 (en) * 1977-07-14 1980-02-15 Sprecher & Schuh Ag Monitoring arrangement on an overvoltage arrester containing at least one spark gap
DE3710359C2 (de) * 1986-09-23 1995-07-06 Bettermann Obo Ohg Vorrichtung zur Überwachung von in einem Stromkreis integrierten Varistoren
DE3805889C2 (de) * 1987-10-24 1995-11-23 Bettermann Obo Ohg Vorrichtung zur Funktionsüberwachung von Überspannungsableitern

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131630A1 (de) * 1981-08-10 1983-02-24 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum schutz von ueber anschlussleitungen angeschalteten elektronischen einrichtungen
EP0262056A1 (fr) * 1986-08-28 1988-03-30 FERRAZ Société Anonyme Indicateur pour la signalisation de la mise en court-circuit d'un parafoudre
EP0521805A1 (fr) * 1991-07-03 1993-01-07 FERRAZ Société Anonyme Indicateur de défaut pour un parafoudre
US5434550A (en) * 1994-04-07 1995-07-18 Hubbell Incorporated Arrester disconnector
WO1995028024A1 (fr) * 1994-04-12 1995-10-19 Telefonaktiebolaget Lm Ericsson Dispositif signalant un limiteur de surtension ayant saute

Also Published As

Publication number Publication date
DE19780816D2 (de) 1999-08-05
DE29613325U1 (de) 1996-09-26

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