EP0729209B1 - Vorrichtung zur Anzeige eines fehlerhaften Zustands eines elektrischen Apparates, insbesondere eines Ueberspannungsableiters - Google Patents
Vorrichtung zur Anzeige eines fehlerhaften Zustands eines elektrischen Apparates, insbesondere eines Ueberspannungsableiters Download PDFInfo
- 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
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Images
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 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 Electric Properties And Detecting Electric Faults (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
- Fig.1
- eine Aufsicht auf einen axial geführten Schnitt durch eine im wesentlichen zylindersymmetrisch ausgebildete und in einen Stromanschluss eines Überspannungsableiters eingebaute Anzeigevorrichtung nach der Erfindung vorm Ansprechen infolge eines Fehlerstroms, und
- Fig.2
- die Anzeigevorrichtung gemäss Fig.1 nach dem Ansprechen.
- 1
- Überspannungsableiter
- 2
- potentialführendes Teil
- 3
- Anzeigevorrichtung
- 4
- Metallgehäuse
- 5
- Schaltelement
- 6
- Isolierstoffgehäuse
- 7, 8
- Elektroden
- 9
- Funkenstrecke
- 10
- Widerstand
- 11
- Sprengstoffladung
- 12, 13
- Schalen
- 14
- Kontaktelement
- 15
- Ausblasöffnungen
- 16
- Anzeigeelement
- 17
- Kontaktelement
- 18
- Abdeckung
Claims (9)
- Vorrichtung zur Anzeige eines fehlerhaften Zustands eines elektrischen Apparates, insbesondere eines Überspannungsableiters (1), mit einem Sensor zur Erfassung eines durch den Apparat fliessenden Fehlerstroms. einem den Sensor, eine mit einem potentialführenden Teil (2) des Apparates elektrisch leitend verbundene Funkenstrecke (9) und eine Sprengstoffladung (11) aufnehmenden, gasdichten Isolierstoffgehäuse (6) und einem Anzeigeelement (16), dadurch gekennzeichnet, dass das Isolierstoffgehäuse (6) von einem zweiteiligen, das Anzeigeelement (16) tragenden Metallgehäuse (4) umgeben ist, und dass der Sensor und das Isolierstoffgehäuse (6) Teil eines Schaltelementes (5) sind, in welchem beim Auftreten des Fehlerstroms die Funkenstrecke gezündet wird, die den Sprengstoff zur Explosion bringt, wodurch die beiden Teile des Metallgehäuses (4) unter Sichtbarmachung des Anzeigeelementes (16) und unter Bildung einer den Fehlerstrom übernehmenden galvanischen Verbindung gegeneinander verschoben werden.
- Anzeigevorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Metallgehäuses (4) von zwei unterschiedliche Durchmesser aufweisenden Schalen (12, 13) gebildet ist, die mit ihren Böden jeweils an entgegengesetzten Enden des Schaltelementes (5) gehalten sind, wobei eine den grösseren Durchmesser aufweisende erste Schale (12) eine den kleineren Durchmesser aufweisende und auf ihrer Aussenseite das Anzeigeelement (16) tragende zweite Schale (13) aufnimmt.
- Anzeigevorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die zweite Schale (13) konusartig aufgeweitet ist, und dass die erste Schale (12) an ihrem Rand mindestens ein ins Schaleninnere gerichtetes Kontaktelement (14) trägt, welches beim Verschieben der beiden Schalen (12, 13) die konusartige Aufweitung der zweiten Schale (13) unter Beibehaltung der galvanischen Verbindung kontaktiert.
- Anzeigevorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das mindestens eine Kontaktelement (14) ringförmig ausgebildet ist und einen an die konusartige Aufweitung der zweiten Schale (13) angepassten Innenkonus aufweist.
- Anzeigevorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass das Innere des Metallgehäuses (4) durch eine vom Boden der zweiten (13) an den Rand der ersten Schale (12) geführte Abdeckung (18) abgeschlossen ist.
- Anzeigevorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass mindestens eine (12) der beiden Schalen (12, 13) Ausblasöffnungen (15) für das gebildete Druckgas aufweist.
- Anzeigevorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass als Sensor ein parallel zur Funkenstrecke (9) angeordneter ohmscher Widerstand (10) vorgesehen ist.
- Anzeigevorrichtung nach einem der Ansprüche 1 oder 7, dadurch gekennzeichnet, dass die beiden Elektroden (7, 8) der Funkenstrecke (9) vom Isolierstoffgehäuse (6) des Schaltelements (5) gehalten sind und in elektrisch leitender Weise jeweils eine der beiden Schalen (12, 13) tragen.
- Anzeigevorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass das Isolierstoffgehäuse (6) aus sprödem Material besteht und bei der Druckgasbildung in mindestens zwei voneinander weggeführte und jeweils eine der beiden Elektroden (7, 8) haltende Teile aufsprengbar ist.
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 (de) | 1996-08-28 |
EP0729209B1 true EP0729209B1 (de) | 1998-09-02 |
Family
ID=7754838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96810083A Expired - Lifetime EP0729209B1 (de) | 1995-02-23 | 1996-02-09 | Vorrichtung zur Anzeige eines fehlerhaften Zustands eines elektrischen Apparates, insbesondere eines Ueberspannungsableiters |
Country Status (15)
Country | Link |
---|---|
US (1) | US5650772A (de) |
EP (1) | EP0729209B1 (de) |
JP (1) | JP3663250B2 (de) |
KR (1) | KR100353660B1 (de) |
CN (1) | CN1050706C (de) |
AU (1) | AU700660B2 (de) |
BR (1) | BR9600783A (de) |
CA (1) | CA2160421C (de) |
CZ (1) | CZ286499B6 (de) |
DE (2) | DE19506307A1 (de) |
ES (1) | ES2124074T3 (de) |
PL (1) | PL179117B1 (de) |
RU (1) | RU2158460C2 (de) |
SI (1) | SI0729209T1 (de) |
SK (1) | SK280437B6 (de) |
Cited By (4)
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 (de) | 2019-05-22 | 2020-11-26 | Siemens Aktiengesellschaft | Abtrennvorrichtung für einen überspannungsableiter und anordnung |
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 |
Families Citing this family (11)
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 |
WO1999008292A1 (en) * | 1997-08-11 | 1999-02-18 | 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 |
KR100660627B1 (ko) | 2005-02-28 | 2006-12-22 | 강영길 | 피뢰장치용 고장표시기 |
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 (de) | 2018-06-18 | 2019-12-26 | Siemens Aktiengesellschaft | Abtrennvorrichtung für einen überspannungsableiter |
US11411386B2 (en) * | 2019-04-29 | 2022-08-09 | Hubbell Incorporated | Disconnector device and overvoltage protection assembly including the same |
DE102020215914A1 (de) | 2020-12-15 | 2022-06-15 | Siemens Energy Global GmbH & Co. KG | Sicherungsanordnung eines Überspannungsableiterindikators |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1995
- 1995-02-23 DE DE19506307A patent/DE19506307A1/de not_active Withdrawn
- 1995-10-12 CA CA002160421A patent/CA2160421C/en not_active Expired - Fee Related
- 1995-10-30 KR KR1019950038193A patent/KR100353660B1/ko not_active IP Right Cessation
- 1995-11-03 US US08/552,953 patent/US5650772A/en not_active Expired - Fee Related
-
1996
- 1996-01-31 CN CN96101437A patent/CN1050706C/zh not_active Expired - Fee Related
- 1996-02-09 DE DE59600489T patent/DE59600489D1/de not_active Expired - Fee Related
- 1996-02-09 EP EP96810083A patent/EP0729209B1/de not_active Expired - Lifetime
- 1996-02-09 ES ES96810083T patent/ES2124074T3/es not_active Expired - Lifetime
- 1996-02-09 AU AU44456/96A patent/AU700660B2/en not_active Ceased
- 1996-02-09 SI SI9630036T patent/SI0729209T1/xx not_active IP Right Cessation
- 1996-02-21 PL PL96312880A patent/PL179117B1/pl not_active IP Right Cessation
- 1996-02-22 SK SK233-96A patent/SK280437B6/sk unknown
- 1996-02-22 CZ CZ1996536A patent/CZ286499B6/cs not_active IP Right Cessation
- 1996-02-22 BR BR9600783-4A patent/BR9600783A/pt not_active IP Right Cessation
- 1996-02-22 RU RU96103663/09A patent/RU2158460C2/ru not_active IP Right Cessation
- 1996-02-23 JP JP03690496A patent/JP3663250B2/ja not_active Expired - Fee Related
Cited By (7)
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 (de) * | 2016-09-13 | 2020-07-15 | ABB Power Grids Switzerland AG | Trennschaltervorrichtung für einen überspannungsableiter und schutzanordnung mit einem an eine derartige trennschaltervorrichtung angeschlossenen überspannungsableiter |
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 (de) | 2019-05-22 | 2020-11-26 | Siemens Aktiengesellschaft | Abtrennvorrichtung für einen überspannungsableiter und anordnung |
Also Published As
Publication number | Publication date |
---|---|
BR9600783A (pt) | 1999-10-13 |
KR960032827A (ko) | 1996-09-17 |
CN1050706C (zh) | 2000-03-22 |
CZ286499B6 (en) | 2000-04-12 |
SI0729209T1 (en) | 1999-04-30 |
CA2160421A1 (en) | 1996-08-24 |
CZ53696A3 (en) | 1996-09-11 |
CA2160421C (en) | 2004-09-07 |
AU700660B2 (en) | 1999-01-14 |
JP3663250B2 (ja) | 2005-06-22 |
SK23396A3 (en) | 1997-02-05 |
EP0729209A1 (de) | 1996-08-28 |
RU2158460C2 (ru) | 2000-10-27 |
ES2124074T3 (es) | 1999-01-16 |
SK280437B6 (sk) | 2000-02-14 |
DE19506307A1 (de) | 1996-08-29 |
DE59600489D1 (de) | 1998-10-08 |
PL179117B1 (pl) | 2000-07-31 |
CN1135109A (zh) | 1996-11-06 |
US5650772A (en) | 1997-07-22 |
PL312880A1 (en) | 1996-09-02 |
JPH08255665A (ja) | 1996-10-01 |
KR100353660B1 (ko) | 2002-12-18 |
AU4445696A (en) | 1996-08-29 |
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