EP0915544A1 - Appareil électrique, en particulier dérivateur de surtensions, muni d'un dispositif indiquant un courant de défaut - Google Patents

Appareil électrique, en particulier dérivateur de surtensions, muni d'un dispositif indiquant un courant de défaut Download PDF

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Publication number
EP0915544A1
EP0915544A1 EP98811058A EP98811058A EP0915544A1 EP 0915544 A1 EP0915544 A1 EP 0915544A1 EP 98811058 A EP98811058 A EP 98811058A EP 98811058 A EP98811058 A EP 98811058A EP 0915544 A1 EP0915544 A1 EP 0915544A1
Authority
EP
European Patent Office
Prior art keywords
housing
electrical apparatus
thermocolor
information carrier
fault current
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
EP98811058A
Other languages
German (de)
English (en)
Other versions
EP0915544B1 (fr
Inventor
Werner Dr. Hofbauer
Walter Schmidt
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.)
ABB Schweiz AG
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Publication of EP0915544A1 publication Critical patent/EP0915544A1/fr
Application granted granted Critical
Publication of EP0915544B1 publication Critical patent/EP0915544B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01T1/12—Means structurally associated with spark gap for recording operation thereof

Definitions

  • the invention is based on an electrical apparatus, in particular a surge arrester, according to the generic term of Claim 1.
  • the invention takes on a state of the art of electrical apparatus Reference as specified in EP 0 564 334 A1.
  • One in this state of the art Electrical apparatus described which is preferably used as a surge arrester or is designed as an insulator for high or medium voltage networks, contains one of the monitoring of the electrical apparatus for a fault current serving detection and display device. This device has one Isolierstoffgeophuse with an easily breakable window.
  • the insulating housing is a power connection of the electrical apparatus guided.
  • the part of the power connection inside the housing is from surround a magnetic core, which the secondary winding of the Bears current connection as a primary winding current transformer.
  • the Secondary winding is connected to an ohmic resistor, which is in an im Explosive charge arranged inside the housing is embedded.
  • the object of the invention is as set out in the claims based on specifying an electrical apparatus of the type mentioned at which the faulty condition of the electrical apparatus with extremely simple Medium and can still be recognized with great certainty.
  • a fault current Incorrect operating state caused by an information carrier indicated which at least part of the outer surface of an insulating material housing of the apparatus contains.
  • This information carrier is provided by the Fault current heated to a limit temperature that is above the permissible Operating temperature of the device is. When the limit temperature is exceeded this information carrier gives an easy and safe to detect optical Signal off. Since such an information carrier is advantageously a Insulated housing contains provided thermal color (Thermocolor), can be can produce and can such apparatus in a simple and inexpensive manner existing equipment without much effort by applying the Thermocolors can be retrofitted to the housing.
  • Thermal color Thermocolor
  • the single figure shows a phase conductor of a high-voltage line, which with a surge arrester and a device to display fault currents containing electrical apparatus according to the Invention is electrically connected.
  • reference numeral 1 denotes a phase conductor on one grounded mast 2 electrically insulated high voltage line.
  • a surge arrester 3 is suspended.
  • the surge arrester 3 is galvanic with a current connection 4 with the phase conductor 1 connected and is attached to the mast 2 by means of a post insulator 6.
  • a second Power connection 5 of the surge arrester 3 is connected via a grounding cable 7 the mast 2 galvanically connected.
  • a high-voltage insulated housing 8 encloses a, not shown, between the power connections 4, 5 arranged stacks of non-linear resistance elements on the base of metal oxides and carries a device designed as an information carrier 9 for the visual display of a faulty one caused by a fault current State of the surge arrester.
  • the housing 8 is advantageously made of a porcelain or a filler-filled polymer, such as one in particular Silicone and / or an epoxy, and preferably has porcelain or silicone existing screens 10 on.
  • the information carrier 9 is on part of the outer surface of the insulating material housing 8 provided. This part of the outer surface of the insulating housing 8 is when a fault current carried in the resistance stack occurs to a Temperature heated, which is above an allowable operating temperature of the Apparatus. When a temperature above the permissible operating temperature is exceeded (e.g. 105 ° C) limit temperature of typically 150 up to 500 ° C, the information carrier 9 emits an optically detectable signal.
  • the information carrier 9 is advantageously on one of the temperature-increasing Effect of the fault current exposed and good from the outside recognizable part of the outer surface of the housing 8, in particular below or arranged above one of the screens 10.
  • the information carrier 9 preferably contains a thermocolor, for example [Co (NH 3 ) 6 ] ⁇ PO 4 , which is applied to the outer surface or at least part of the outer surface of the housing 9.
  • This thermocolor changes its color above the limit temperature, [Co (NH 3 ) 6 ] ⁇ PO 4, for example at 200 ° C. from yellow to blue, and retains this color even after the temperature has dropped below the limit temperature.
  • the color change permanently indicates that the surge arrester 3, which can be identified by the color change, is defective.
  • thermocolor can be used in the production of the housing-forming material material-forming raw materials are mixed.
  • the housing 8 formed then also represents the information carrier 9
  • Thermocolor can be used to retrofit an existing appliance but also in the form of a ribbon or a strip to form one heat-transferring contact surface at least on part of the outer surface of the Housing 8 are applied. This can be done in a particularly simple manner Thermocolor by spraying or brushing at least part of the Be applied to the outer surface of the housing 9.
  • the information carrier 9 In order to be able to recognize the information carrier 9 particularly well in the dark , it is advisable to make them luminous and / or reflective. In this can be achieved in a particularly advantageous manner by admixing a fluorescent color or reflective particles can be reached to the Thermocolor.
  • the information carrier can also be attached to one other electrical apparatus, for example an isolator of a switch or a transformer, or an insulator of a high-voltage system, for example, the post insulator 6.
  • one other electrical apparatus for example an isolator of a switch or a transformer, or an insulator of a high-voltage system, for example, the post insulator 6.

Landscapes

  • Thermistors And Varistors (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Gas-Insulated Switchgears (AREA)
EP98811058A 1997-11-08 1998-10-22 Dérivateur de surtensions, muni d'un dispositif indiquant un courant de défaut Expired - Lifetime EP0915544B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19749522A DE19749522A1 (de) 1997-11-08 1997-11-08 Elektrischer Apparat, insbesondere Überspannungsableiter, mit einer Vorrichtung zur Anzeige eines Fehlerstromstroms
DE19749522 1997-11-08

Publications (2)

Publication Number Publication Date
EP0915544A1 true EP0915544A1 (fr) 1999-05-12
EP0915544B1 EP0915544B1 (fr) 2003-12-03

Family

ID=7848106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98811058A Expired - Lifetime EP0915544B1 (fr) 1997-11-08 1998-10-22 Dérivateur de surtensions, muni d'un dispositif indiquant un courant de défaut

Country Status (3)

Country Link
US (1) US6028759A (fr)
EP (1) EP0915544B1 (fr)
DE (2) DE19749522A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007117163A1 (fr) * 2006-04-12 2007-10-18 Abb Sp. Z O.O. Parafoudre basse tension comprenant un indicateur visuel d'anomalie
CN105762650A (zh) * 2016-04-19 2016-07-13 国家电网公司 带雷击放电计数装置的防雷内置柱式限压器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ29574U1 (cs) * 2016-05-03 2016-06-21 Saltek S.R.O. Přepěťová ochrana se signalizací překročení provozní teploty
WO2017191566A1 (fr) * 2016-05-03 2017-11-09 Saltek S.R.O. Protection de surtension avec indication de température de fonctionnement dépassée
CA178834S (en) 2017-08-01 2019-02-28 The Trustees For The Time Being Of The Live Line Int Trust Drop out electrical surge arrestor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB798918A (en) * 1956-08-22 1958-07-30 Siemens Ag Improvements in or relating to electric surge arresters
JPH0256884A (ja) * 1988-08-22 1990-02-26 Ngk Insulators Ltd 避雷碍子装置における動作表示装置
JPH05190252A (ja) * 1992-01-17 1993-07-30 Nichiyu Giken Kogyo Kk アーク発生検知具
EP0564334A1 (fr) * 1992-03-30 1993-10-06 Sediver, Societe Europeenne D'isolateurs En Verre Et Composite Dispositif pour la détection et la signalisation d'un courant de défaut dans un parafoudre ou un isolateur
JPH0870522A (ja) * 1994-08-29 1996-03-12 Yazaki Corp 素子作動確認用窓を備えた電気接続箱
EP0729209A1 (fr) * 1995-02-23 1996-08-28 ABB Management AG Dispositif d'indication d'un état défectueux d'un appareil électrique, en particulier un dérivateur de surtensions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9005827D0 (en) * 1990-03-15 1990-05-09 Raychem Gmbh Electrical protection apparatus
US5237482A (en) * 1991-07-10 1993-08-17 Joslyn Corporation High voltage surge arrester with failed surge arrester signaling device
US5341271A (en) * 1992-06-22 1994-08-23 Minnesota Mining And Manufacturing Company Surge arrester fault indicator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB798918A (en) * 1956-08-22 1958-07-30 Siemens Ag Improvements in or relating to electric surge arresters
JPH0256884A (ja) * 1988-08-22 1990-02-26 Ngk Insulators Ltd 避雷碍子装置における動作表示装置
JPH05190252A (ja) * 1992-01-17 1993-07-30 Nichiyu Giken Kogyo Kk アーク発生検知具
EP0564334A1 (fr) * 1992-03-30 1993-10-06 Sediver, Societe Europeenne D'isolateurs En Verre Et Composite Dispositif pour la détection et la signalisation d'un courant de défaut dans un parafoudre ou un isolateur
JPH0870522A (ja) * 1994-08-29 1996-03-12 Yazaki Corp 素子作動確認用窓を備えた電気接続箱
EP0729209A1 (fr) * 1995-02-23 1996-08-28 ABB Management AG Dispositif d'indication d'un état défectueux d'un appareil électrique, en particulier un dérivateur de surtensions

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 225 (E - 0927) 14 May 1990 (1990-05-14) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 608 (E - 1457) 9 November 1993 (1993-11-09) *
PATENT ABSTRACTS OF JAPAN vol. 096, no. 007 31 July 1996 (1996-07-31) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007117163A1 (fr) * 2006-04-12 2007-10-18 Abb Sp. Z O.O. Parafoudre basse tension comprenant un indicateur visuel d'anomalie
CN105762650A (zh) * 2016-04-19 2016-07-13 国家电网公司 带雷击放电计数装置的防雷内置柱式限压器
CN105762650B (zh) * 2016-04-19 2018-03-09 国家电网公司 带雷击放电计数装置的防雷内置柱式限压器

Also Published As

Publication number Publication date
EP0915544B1 (fr) 2003-12-03
US6028759A (en) 2000-02-22
DE59810327D1 (de) 2004-01-15
DE19749522A1 (de) 1999-05-12

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