EP0729209B1 - Dispositif d'indication d'un état défectueux d'un appareil électrique, en particulier un dérivateur de surtensions - Google Patents

Dispositif d'indication d'un état défectueux d'un appareil électrique, en particulier un dérivateur de surtensions Download PDF

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Publication number
EP0729209B1
EP0729209B1 EP96810083A EP96810083A EP0729209B1 EP 0729209 B1 EP0729209 B1 EP 0729209B1 EP 96810083 A EP96810083 A EP 96810083A EP 96810083 A EP96810083 A EP 96810083A EP 0729209 B1 EP0729209 B1 EP 0729209B1
Authority
EP
European Patent Office
Prior art keywords
shell
indicating
housing
indicating device
insulating material
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 - Lifetime
Application number
EP96810083A
Other languages
German (de)
English (en)
Other versions
EP0729209A1 (fr
Inventor
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 AG Germany
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
Priority to SI9630036T priority Critical patent/SI0729209T1/xx
Publication of EP0729209A1 publication Critical patent/EP0729209A1/fr
Application granted granted Critical
Publication of EP0729209B1 publication Critical patent/EP0729209B1/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
    • 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
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current

Definitions

  • the invention is based on a device for displaying a faulty condition of an electrical apparatus, in particular one Surge arrester, with a sensor for detecting a by the Apparatus flowing fault current, the sensor and an explosive charge receiving, gas-tight insulating material housing and a display element. If a fault current occurs, the sensor will destroy it of the housing and the visualization of the display element. A Observer can see the faulty condition without the use of tools recognize the device and have it replaced in good time.
  • the invention takes on a prior art display device Reference as specified in EP 0 564 334 A1.
  • One in this state of the Technique described display device is used to monitor a a high or medium voltage network surge arrester to a faulty operating state.
  • This device has one Isolierstoffgeophuse with an easily breakable window.
  • the insulating housing is a power connection for the surge arrester guided.
  • the part of the power connector inside the housing is surrounded by a magnetic core, which is the secondary winding of a carries the power connection as a primary winding current transformer.
  • the secondary winding is connected to an ohmic resistor, which in an explosive charge arranged inside the housing is embedded. If a fault current occurs, the current transformer heats up ohmic resistance continuously supplied with current very strong.
  • the window of the insulating material housing is broken open and a colored ribbon serving as a display element from the housing pushed out. After responding and signaling the faulty The surge arrester and the display device become state removed and replaced.
  • An electrical protection device described in FR-A-1 122 257 for Grounding an electrical line contains an on line potential located, gas-tight metal housing 1, a truncated cone trained, grounded metal pot 16 and one inside the housing arranged explosive charge 30.
  • the metal pot 16 is counter to the force an elastic membrane 18 in the metal housing 1 of this electrically kept isolated.
  • a faulty condition occurs on the electrical line an overvoltage acts on the explosive charge. Above one Limit value of the overvoltage explodes the explosive charge and drives the metal pot 16 against the force of the membrane 18 down, one galvanic connection between the metal housing 1 and the metal pot 16 manufactured and thus the line is grounded.
  • the invention is the Task based on a display device of the type mentioned indicate which features a simple structure and which ones ready for operation again after the response can be made.
  • the display device is characterized in that besides a reusable metal case, it is only a commercial one Switching element available and sold in large quantities contains, the remains of which after the display device responds easily removed from the metal housing and with a new switching element can be replaced.
  • one in the switching element provided ohmic resistance for example a fuse or a PTC resistor
  • ohmic resistance for example a fuse or a PTC resistor
  • Current surges of, for example, 100kA during 4 / 10 ⁇ s
  • Spark gap becomes an arc when the display device responds ignited, which with great certainty the explosion of one in the switching element initiates the intended explosive charge.
  • resulting splinters are absorbed by metal housings, Compressed gas can flow from metal housing in directions be distracted in which it will cause no consequential damage can. That attached to the metal housing and when responding Display element made visible can be viewed practically from all sides be observed well.
  • FIG. 1 denotes one as a surge arrester executed electrical apparatus with an as Power connection acting potential-carrying part 2, which in electrically conductive manner with a device 3 for display a faulty state of the surge arrester 1 connected is.
  • the display device has a two-part metal housing 4 made of a material that conducts electricity well, such as aluminum or an aluminum alloy on which a switching element 5 of the display device 3 is attached.
  • the switching element 5 contains a cylinder-symmetrical, gas-tight formed insulating material housing 6 made of a brittle material, such as a highly filled polymer based on an epoxy, and two cylindrically symmetrical, led into the insulating material housing and in each case at one of the ends of the insulating material housing 6 held electrodes 7, 8.
  • the two electrodes 7, 8 are standing one above the other on the axis of the insulating material housing 6 arranged and form at mutually facing free ends, of which the electrode 7 is designed as a tip Isolierstoffgeophuse 6 spark gap 9.
  • the each other facing end portions of the electrodes 7, 8 are with the Power connections of a parallel to the spark gap 9 and preferably as a fuse or PTC thermistor trained resistor 10 connected.
  • the resistor 10 is dimensioned such that he still one of the surge arrester 1 held high current surge value, for example of 100 kA 4/10 ⁇ s, can lead, and that when loaded above a predetermined Period, for example 0.1 ms, with one above one predetermined limit value, for example 20 A, its electrical conductivity, such as by melting or through a PTC transition, suddenly reduced.
  • a predetermined Period for example 0.1 ms
  • one above one predetermined limit value for example 20 A
  • its electrical conductivity such as by melting or through a PTC transition
  • the metal housing 4 is of two different diameters having shells 12, 13 formed, each with their bottoms are held at opposite ends of the switching element 5.
  • the shell 12 having the larger diameter takes the the smaller diameter shell 13.
  • the shell 12 has an opening in its bottom through which a galvanic part 2 of the surge arrester connected and an external thread connection of the Electrode 7 is guided.
  • the shell 12 is not by means of a designated nut firmly with the upper end of the switching element 5 connected.
  • the shell 12 carries at least one ins Contact element 14 directed inside the shell, which is ring-shaped is formed and has an inner cone.
  • This contact element 14 is provided with an internal thread, which with a External thread of the shell 12 cooperates.
  • the Shell 12 blow-out openings 15 for compressed gas. These blowouts can be restrained with a solid part inside the case Provide filters and be designed so that escaping compressed gas is guided in a predetermined direction.
  • the shell 13 also has an opening in its bottom, through which an external thread has an earth potential laid connection of the electrode 8 is guided.
  • the shell 13 is by means of an unspecified nut firmly with the lower end of the switching element 5 connected.
  • the shell 13 carries on her from the shell 12 covered outside, for example as Color coating formed display element 16.
  • the shell 13 is flared like a cone and is in the area of the shell edge on the outside as an electrical contact element 17 formed which on the inner cone of the annular contact element 14 is adjusted.
  • the inside of the metal case 4 is by one from the bottom of the shell 13 to the edge of the shell 12 guided cover 18 completed.
  • the operation of the display device 3 is now as follows:
  • the surge arrester leads under normal operating conditions 1 just a small leakage current, which is typically is in the mA range. This leakage current flows from the potential-carrying Part 2 on the electrode 7, the resistor 10, the Electrode 8 and one with this electrode 8 by means of a Screw connection galvanically connected, not shown flexible conductor section down to earth.
  • surge arrester 1 for example up to 100 kA 4 / 10 ⁇ s, which as a result of excess the arrester flow, discharged to earth without that the display device 3 responds.
  • a defect flows in Residual current in the A or even kA range due to the current sensor acting ohmic resistance 10.
  • the resistance 10 becomes strong heats up and goes within a few ms, for example by melting or a PTC transition, into a high-resistance state.
  • Residual current now commutates into an arc Spark gap 9 containing current path.
  • the in the field of Spark gap 9 arranged explosive charge 11 is charged by the ignited arcing.
  • the resultant Compressed gas suddenly blows up the brittle insulating material housing 6 and then drives the electrode 8 and the one rigidly connected to it Shell 13 down to the state shown in Fig.2 Display device 3 is reached.
  • the compressed gas is through the Blow-out openings from the inside of the shells 12 and 13 enclosed metal housing 4 ejected.
  • resulting splinters are from Metal housing 4 retained in the interior of the housing.
  • the defective surge arrester 1 and the display device 3 can now be removed and replaced with new devices.
  • the display device 3 can by installing a new switching element 5 operational again in a particularly economical manner be made. After unscrewing the contact element 14 and loosening the two nuts not shown in the figures only the two electrodes 7 and 8 have to be removed then just insert and close the new switching element 5 screw together.

Landscapes

  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Claims (9)

  1. Dispositif d'indication d'un état défectueux d'un appareil électrique, en particulier d'un dérivateur de surtensions (1), comprenant un détecteur permettant de repérer un courant de fuite circulant à travers l'appareil, un boítier isolant (6) étanche au gaz abritant le détecteur, un éclateur (9) connecté électriquement avec une partie à conduction de potentiel (2) de l'appareil et une charge de matière explosive (11) et un élément indicateur (16), caractérisé en ce que le boítier isolant (6) est entouré par un boítier métallique (4) constitué de deux parties et supportant l'élément indicateur (16), et en ce que le détecteur et le boítier isolant (6) font partie d'un élément de commutation (5) dans lequel, en cas d'apparition du courant de fuite, l'éclateur est allumé, ce qui entraíne l'explosion de la matière explosive, suite à quoi les deux parties du boítier métallique (4) sont poussées l'une contre l'autre, faisant ainsi apparaítre l'élément indicateur (16) et provoquant la formation d'une connexion galvanique absorbant le courant de fuite.
  2. Dispositif d'indication suivant la revendication 1, caractérisé en ce que le boítier métallique (4) est constitué de deux enveloppes (12, 13) de diamètre différent, qui sont fixées chacune à une extrémité opposée de l'élément de commutation (5) au moyen de leur fond, la première enveloppe (12) présentant le diamètre le plus grand entourant la deuxième enveloppe (13) présentant le diamètre le plus petit et comportant l'élément indicateur (16) sur sa face extérieure.
  3. Dispositif d'indication suivant la revendication 2, caractérisé en ce que la deuxième enveloppe (13) est évasée en forme de cône et en ce que le bord de la première enveloppe (12) comprend au moins un élément de contact (14) orienté vers l'intérieur de l'enveloppe, lequel fait contact avec l'évasement conique de la deuxième enveloppe (13) en maintenant la connexion galvanique lors du déplacement des deux enveloppes (12, 13).
  4. Dispositif d'indication suivant la revendication 3, caractérisé en ce qu'au moins un élément de contact (14) est réalisé en forme d'anneau et présente un cône intérieur qui s'adapte à l'évasement conique de la deuxième enveloppe (13).
  5. Dispositif d'indication suivant l'une quelconque des revendications 2 à 4, caractérisé en ce que l'intérieur du boítier métallique (4) est obturé par un opercule (18) constitué par le fond de la deuxième enveloppe (13) sur le bord de la première enveloppe (12).
  6. Dispositif d'indication suivant l'une quelconque des revendications 2 à 5, caractérisé en ce qu'au moins une (12) des deux enveloppes (12, 13) comporte des ouvertures de purge (15) pour le gaz comprimé engendré.
  7. Dispositif d'indication suivant la revendication 1, caractérisé en ce que le détecteur est constitué par une résistance ohmique (10) installée en parallèle à l'éclateur (9).
  8. Dispositif d'indication suivant l'une quelconque des revendications 1 ou 7, caractérisé en ce que les deux électrodes (7, 8) de l'éclateur (9) sont maintenues par le boítier isolant (6) de l'élément de commutation (5) et supportent chacune l'une des deux enveloppes (12, 13) de manière conductrice.
  9. Dispositif d'indication suivant la revendication 8, caractérisé en ce que le boítier isolant (6) est fabriqué en un matériau cassant et peut éclater, lors de la formation du gaz comprimé, en au moins deux parties projetées à distance l'une de l'autre et retenant chacune l'une des deux électrodes (7, 8).
EP96810083A 1995-02-23 1996-02-09 Dispositif d'indication d'un état défectueux d'un appareil électrique, en particulier un dérivateur de surtensions Expired - Lifetime EP0729209B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630036T SI0729209T1 (en) 1995-02-23 1996-02-09 Device for indicating a defective state of an electric apparatus, especially a surge arrester

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19506307A DE19506307A1 (de) 1995-02-23 1995-02-23 Vorrichtung zur Anzeige eines fehlerhaften Zustands eines elektrischen Apparates, insbesondere eines Überspannungsableiters
DE19506307 1995-02-23

Publications (2)

Publication Number Publication Date
EP0729209A1 EP0729209A1 (fr) 1996-08-28
EP0729209B1 true EP0729209B1 (fr) 1998-09-02

Family

ID=7754838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810083A Expired - Lifetime EP0729209B1 (fr) 1995-02-23 1996-02-09 Dispositif d'indication d'un état défectueux d'un appareil électrique, en particulier un dérivateur de surtensions

Country Status (15)

Country Link
US (1) US5650772A (fr)
EP (1) EP0729209B1 (fr)
JP (1) JP3663250B2 (fr)
KR (1) KR100353660B1 (fr)
CN (1) CN1050706C (fr)
AU (1) AU700660B2 (fr)
BR (1) BR9600783A (fr)
CA (1) CA2160421C (fr)
CZ (1) CZ286499B6 (fr)
DE (2) DE19506307A1 (fr)
ES (1) ES2124074T3 (fr)
PL (1) PL179117B1 (fr)
RU (1) RU2158460C2 (fr)
SI (1) SI0729209T1 (fr)
SK (1) SK280437B6 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10107357A1 (de) * 2001-02-07 2002-08-22 Siemens Ag Signaleinrichtung zur Anzeige des Ansprechens eines Überspannungsableiters
US10109399B2 (en) 2016-09-13 2018-10-23 Abb Schweiz Ag Disconnector device for a surge arrester and a protection assembly comprising a surge arrester connected to such a disconnector device
WO2020233944A1 (fr) 2019-05-22 2020-11-26 Siemens Aktiengesellschaft Dispositif de coupure pour un dispositif de protection contre les surtensions et ensemble
US11322934B2 (en) 2016-09-13 2022-05-03 Hitachi Energy Switzerland Ag Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line

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Publication number Priority date Publication date Assignee Title
US6031368A (en) * 1996-09-12 2000-02-29 S&C Electric Company Sensing apparatus for cable termination devices in power distribution systems
DE19637984A1 (de) * 1996-09-18 1998-03-19 Asea Brown Boveri Elektrischer Apparat, insbesondere Überspannungsableiter und System zur Anzeige des Zustands dieses Apparats in einer zentralen Auswertevorrichtung
AU9043198A (en) * 1997-08-11 1999-03-01 Chengeta, Cuthbert Lightning arrestor
DE19749522A1 (de) * 1997-11-08 1999-05-12 Asea Brown Boveri Elektrischer Apparat, insbesondere Überspannungsableiter, mit einer Vorrichtung zur Anzeige eines Fehlerstromstroms
DE10345658B3 (de) * 2003-09-25 2005-04-28 Siemens Ag Einrichtung zur Überwachung des Leckstroms eines Überspannungsableiters
RU2257636C1 (ru) * 2004-04-15 2005-07-27 Джус Илья Николаевич Устройство для контроля состояния контакта выключателя (варианты)
KR100660627B1 (ko) 2005-02-28 2006-12-22 강영길 피뢰장치용 고장표시기
CZ2005247A3 (cs) * 2005-04-19 2006-12-13 Kiwa Spol. S R. O. Zarízení pro dálkové sledování stavu alespon jednopólové prepetové ochrany
US7839257B2 (en) * 2005-08-05 2010-11-23 Kiwa Spol. S.R.O. Overvoltage protection with status signalling
KR101047879B1 (ko) * 2008-07-21 2011-07-08 한국전력공사 전력 기기의 충전부 내장형 장치
DE102010047244A1 (de) * 2010-10-04 2012-04-05 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzvorrichtung
ES2907128T3 (es) * 2016-02-29 2022-04-22 Hitachi Energy Switzerland Ag Dispositivo seccionador para descargador de sobretensiones y conjunto de protección que comprende un descargador de sobretensiones conectado a dicho dispositivo seccionador
WO2019243030A1 (fr) 2018-06-18 2019-12-26 Siemens Aktiengesellschaft Dispositif de séparation pour un déflecteur de surtension
CA3138542A1 (fr) * 2019-04-29 2020-11-05 Hubbell Incorporated Dispositif de deconnexion et assemblage de protection contre les surtensions equipe dudit dispositif
DE102020215914A1 (de) 2020-12-15 2022-06-15 Siemens Energy Global GmbH & Co. KG Sicherungsanordnung eines Überspannungsableiterindikators

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DE655889C (de) * 1930-05-05 1938-01-25 Aeg Vorrichtung zum Anzeigen des UEberschlages an Leitungsmasten mit Hilfe von Explosionsfunkenstrecken
US2677817A (en) * 1950-07-10 1954-05-04 Harold L Rorden Flashover indicator
FR1122257A (fr) * 1955-02-01 1956-09-04 Dispositif de protection électrique
US3573782A (en) * 1968-05-23 1971-04-06 United Aircraft Corp Current monitor
US4734823A (en) * 1985-11-01 1988-03-29 Joslyn Corporation Fault current interrupter and explosive disconnector for surge arrester
US5057810A (en) * 1991-02-14 1991-10-15 Hubbell Incorporated Arrester isolator-disconnector
US5237482A (en) * 1991-07-10 1993-08-17 Joslyn Corporation High voltage surge arrester with failed surge arrester signaling device
NO304400B1 (no) * 1992-03-30 1998-12-07 Sediver Sociutu Europ D Isolat Anordning for Õ pÕvise og anvise en feilstr°m gjennom en lynavleder eller en isolator
US5341271A (en) * 1992-06-22 1994-08-23 Minnesota Mining And Manufacturing Company Surge arrester fault indicator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10107357A1 (de) * 2001-02-07 2002-08-22 Siemens Ag Signaleinrichtung zur Anzeige des Ansprechens eines Überspannungsableiters
DE10107357C2 (de) * 2001-02-07 2003-03-27 Siemens Ag Signaleinrichtung zur Anzeige des Ansprechens eines Überspannungsableiters
US10109399B2 (en) 2016-09-13 2018-10-23 Abb Schweiz Ag Disconnector device for a surge arrester and a protection assembly comprising a surge arrester connected to such a disconnector device
EP3513468B1 (fr) * 2016-09-13 2020-07-15 ABB Power Grids Switzerland AG Dispositif sectionneur pour parasurtenseur et ensemble de protection comprenant un parasurtenseur connecté à un tel dispositif sectionneur
US11322934B2 (en) 2016-09-13 2022-05-03 Hitachi Energy Switzerland Ag Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line
US11682899B2 (en) 2016-09-13 2023-06-20 Hitachi Energy Switzerland Ag Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line
WO2020233944A1 (fr) 2019-05-22 2020-11-26 Siemens Aktiengesellschaft Dispositif de coupure pour un dispositif de protection contre les surtensions et ensemble

Also Published As

Publication number Publication date
EP0729209A1 (fr) 1996-08-28
SK280437B6 (sk) 2000-02-14
US5650772A (en) 1997-07-22
CA2160421A1 (fr) 1996-08-24
JP3663250B2 (ja) 2005-06-22
CN1050706C (zh) 2000-03-22
DE19506307A1 (de) 1996-08-29
DE59600489D1 (de) 1998-10-08
JPH08255665A (ja) 1996-10-01
ES2124074T3 (es) 1999-01-16
KR100353660B1 (ko) 2002-12-18
AU700660B2 (en) 1999-01-14
AU4445696A (en) 1996-08-29
CA2160421C (fr) 2004-09-07
BR9600783A (pt) 1999-10-13
PL179117B1 (pl) 2000-07-31
CZ53696A3 (en) 1996-09-11
SK23396A3 (en) 1997-02-05
CZ286499B6 (en) 2000-04-12
KR960032827A (ko) 1996-09-17
CN1135109A (zh) 1996-11-06
PL312880A1 (en) 1996-09-02
SI0729209T1 (en) 1999-04-30
RU2158460C2 (ru) 2000-10-27

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