EP0847062A1 - Überspannungsableiter - Google Patents
Überspannungsableiter Download PDFInfo
- Publication number
- EP0847062A1 EP0847062A1 EP97810853A EP97810853A EP0847062A1 EP 0847062 A1 EP0847062 A1 EP 0847062A1 EP 97810853 A EP97810853 A EP 97810853A EP 97810853 A EP97810853 A EP 97810853A EP 0847062 A1 EP0847062 A1 EP 0847062A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- surge arrester
- tube
- arrester according
- fittings
- insulating
- 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
Links
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
- H01C1/024—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being hermetically sealed
Definitions
- the invention is based on a surge arrester according to the Preamble of claim 1.
- Such a surge arrester is used in medium or high voltage systems Measuring, protection or control tasks used and has an in an insulating housing arranged active part, which has at least one varistor on the base of zinc oxide specifically doped with selected elements such as Bi, Sb, Co and Mn contains.
- the active part is by means of a layer of insulating material inside the housing fixed.
- a surge arrester of the type mentioned at the outset is in EP 0 103 454 B1 specified.
- This surge arrester consists of one with weather screens provided porcelain housing with a cylinder bore into which a cylindrical Active part based on several columnar stacked varistors on the base of doped zinc oxide is introduced.
- the active part is with the help of a between the wall the bore and the outer surface of the active part provided adhesive layer on the Base fixed by glass. Two led to the end faces of the active part Metal fittings close off the inside of the housing and serve as Power connections. That is when manufacturing this surge arrester Porcelain housings exposed to high temperatures because of the formation of the adhesive layer liquid glass is poured into the porcelain housing. It is also required that Attach fittings with a cement to the ends of the porcelain housing.
- FIG. 1 Another surge arrester with a cylindrical active part on the base of metal oxide varistors is described in EP 0 335 479 B1.
- This surge arrester has a thread-wound housing and two metal fittings sealed insulating tube and an elastomeric weather protection, which on the outer surface of the insulating tube is held.
- the insulation tube is surge arrester by winding the two Fittings and the active part containing varistors are formed.
- the invention as set out in claim 1 is based on the object to specify a surge arrester of the type mentioned, which is characterized by a high mechanical strength and yet in simple and can be produced inexpensively.
- the surge arrester according to the invention is characterized in that it is in few and easy to carry out process steps quickly and extremely Can be manufactured inexpensively and still have excellent has mechanical and electrical properties. This is mainly because since the essential process steps are easy to automate.
- Typical Process steps are the production of a thermoplastic and an elastomer Tube, and the insertion and screwing together Parts to form the surge arrester housing the active part and the filling of the arrester housing with an insulating material, preferably room temperature curable Liquid.
- an insulating material preferably room temperature curable Liquid.
- the in 1 has a two-part insulating material housing 1 on which of an insulating tube 2 and one on the outer surface of the tube 2nd with the help of a layer of grease in a watertight manner, shielded Weather protection 3 is formed.
- the insulating tube 2 mainly contains a thermoplastic Polymer, such as preferably a polyamide, and embedded in the thermoplastic Filler, preferably glass fibers with a proportion of 20-60, for example 30 or 50% by weight on the insulating tube.
- a thermoplastic Polymer such as preferably a polyamide
- the thermoplastic Filler preferably glass fibers with a proportion of 20-60, for example 30 or 50% by weight on the insulating tube.
- Such a tube can be particularly simple and can be produced cost-effectively by extrusion or injection molding.
- the weather protection 3 is made of an elastomeric polymer, preferably based an ethylene, propylene, silicone, fluorosilicone or fluorine rubber, formed and is advantageously produced by injection molding. It is particularly advantageous here if the screens 4 of the weather protection 3 are guided radially. The for casting the Weather protection 3 necessary form can then be designed so that the not too avoiding pouring seam forms the outer edge of the screens 4 and between the Shielding runs, but not in the areas with the highest dielectric load above the top and below the bottom screen 4.
- the grease provided between the insulating tube 2 and the weather protection 3 is preferably a silicone grease. This grease seals the insulating tube 2 and Weather protection 3 against each other, which prevents the ingress of moisture between Insulating tube 2 and weather protection 3 is prevented. At the same time, the fat makes it easier Sliding the weather protection 3 onto the insulating tube 2 when installing the Surge arrester and also improves the dielectric properties the insulating housing 1.
- a cylindrical armature 5 closing off the lower end of the tube 2 an electrically conductive material, such as alloyed or unalloyed Aluminum or copper, molded into the tube 2.
- An appropriately trained Armature 6 made of the same material closes the insulating tube 2 upwards.
- the insulating tube 2 When manufacturing the insulating tube 2 are in the inside of the tube 2 at the same time at least three guide rails 7 aligned in the direction of the tube axis molded.
- the guide rails 7 are in the circumferential direction of the insulating tube 2 evenly distributed and thus space the inner wall of the insulating tube 2 from the outer surface of an inside of the insulating tube, cylindrical active part 8.
- This active part 8 contains a columnar trained varistor based on metal oxide or several disc-shaped trained and arranged with the interposition of contact discs columnar Varistors each based on metal oxide.
- the hollow cylindrical space between Active part 8 and insulating tube 3 is to improve the dielectric behavior of the Surge arrester filled with insulating material.
- This insulating material is advantageous made of a silicone-based resin hardened at room temperature, which, when installing the surge arrester, initially in the form of a Liquid is filled into the interior of the insulating housing 1.
- FIG. 1 From Fig. 1 it can be seen that the fittings 5, 6 each one into the outside facing end face molded and guided on the outer surface, ring-shaped Show depression. This depression is in FIG. 3 with reference number 9 featured.
- the depression of the lower end of the insulating tube 2 final fitting 5 serves to accommodate a radially inward Collar 10 of the tube, which is formed in the manufacture of the tube 2.
- Collar 10 engages behind fitting 5 and thus closes in depression 9 molded through openings in the direction of the tube axis 11
- Sinking the armature 6 serves to hold insulating material, which after Filling the insulating material housing 1 with the initially liquid insulating agent from the pipe 2 occurs and is then cured to insulating material at room temperature.
- the two fittings 5, 6 have on their two inwardly facing end faces several contact cams 12 each, while on their two to the outside facing end faces each have an internal thread 13 which is the Inclusion of a threaded bolt 14 for establishing a galvanic connection serves as a power connector (Fig.1).
- a threaded bolt 14 for establishing a galvanic connection serves as a power connector (Fig.1).
- Fig.1 a power connector
- an external thread 15 is embedded in the lateral surfaces of the two fittings 5 and 6, an external thread 15 is embedded.
- the external thread 15 of the Armature 5 holds this armature formed on the tube 2 with the action of an axial one Force stationary in the insulating tube 2, whereas the external thread 15 of the valve 6 with an internal thread formed in the upper end of the tube 2 to form a axially acting force works together.
- the insulating housing 1 At the lower end of the insulating housing 1 are arranged metal covers 16 and 17 by means of two nuts 18 guided on the threaded bolts 14 against the housing 1 pressed and thus prevent unwanted moisture from getting inside the Surge arrester arrives.
- This surge arrester has the active part 8, the insulating tube 2, the Weather protection 3, the two fittings 5 and 6, the insulating material not designated between active part 8 and insulating tube 2 and the two covers 16 and 17 eight easy-to-assemble parts, two of which are fittings 5, 6 and the covers 16, 17 are of identical design. Therefore, the surge arrester quickly and in a process that is particularly suitable for series production getting produced.
- Such a method is advantageously carried out as follows:
- the active part 8 is inserted into the insulating tube 5 which already contains the lower armature 3 and is therefore cup-shaped and subsequently the upper end of the tube 2 is closed by screwing in the armature 6.
- a tool can engage in the through openings 11 for screwing in.
- the fitting 6 is screwed into the interior of the pipe until the contact cams 12 of the two fittings 5 and 6 rest with sufficient contact force on the two end faces of the active part 8. Since the tube 2 has a relatively high elasticity, it is ensured that this contact force is maintained during the operation of the surge arrester.
- the two covers 16, 17 are made of metal, such as steel or aluminum or an aluminum alloy.
- at least the cover 17 consists of a material which itself to form a connection point 19 in a simple manner with the insulating tube 2 can be non-positively welded, soldered or glued.
- a particularly firm one Mechanical connection is achieved when the cover 17 is made of the same material consists of how the insulating tube 2, and if the connection by welding the upper edge of the insulating tube 2 and the cover 17, in particular with ultrasound, is achieved.
- a surge arrester manufactured in this way is distinguished due to a high mechanical strength, since the active part 8, in particular a current impulse load, tensile forces now released not only via the external thread 15 but also via the connecting parts 19 of the valve 6 on the Isolierstoffrohr 2 are transferred. At the same time, by connecting the two Parts 2 and 17 make it more difficult for water to enter the interior of the housing.
- the weather protection 3 is at its upper end formed closed and has a cover part 20 which the cover 17th makes dispensable.
- Distribute pins evenly in the circumferential direction With just three pins per fitting the mechanical strength is significantly increased. Depending on the diameter of the Isoller fabric tube 2 but more than three pins can also be used.
- the pins 21 can increase the mechanical strength of the surge arrester further improved according to the previously described embodiment will.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
- Insulators (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Inorganic Insulating Materials (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
- Fig.1
- eine Aufsicht auf ein in axialer Richtung geschnittenes erstes Ausführungsbeispiel des Überspannungsableiters nach der Erfindung mit einem in einem Isolierstoffgehäuse befindlichen und zwischen zwei zylinderförmigen Armaturen angeordneten, zylinderförmigen Aktivteil,
- Fig.2
- eine Draufsicht auf die dem Aktivteil des Überspannungsableiters gemäss Fig.1 zugewandte Stirnseite einer der beiden Armaturen,
- Fig.3
- eine Seitenansicht der Armatur gemäss Fig.2, und
- Fig.4
- eine Aufsicht auf ein in axialer Richtung geschnittenes zweites Ausführungsbeispiel des Überspannungsableiters nach der Erfindung.
In das bereits die untere Armatur 3 enthaltende und daher becherförmig ausgebildete Isolierstoffrohr 5 wird das Aktivteil 8 eingeschoben und nachfolgend das obere Ende des Rohrs 2 durch Einschrauben der Armatur 6 verschlossen. Zum Einschrauben kann in den Durchgangsöffnungen 11 ein Werkzeug eingreifen. Die Armatur 6 wird soweit ins Rohrinnere eingeschraubt bis die Kontaktnocken 12 der beiden Armaturen 5 und 6 mit ausreichender Kontaktkraft auf den beiden Stirnflächen des Aktivteils 8 aufliegen. Da das Rohr 2 eine relativ hohe Elastizität aufweist, ist gewährleistet, dass diese Kontaktkraft während des Betriebs des Überspannungsableiters beibehalten wird.
- 1
- Isolierstoffgehäuse
- 2
- Isolierstoffrohr
- 3
- Wetterschutz
- 4
- Schirme
- 5, 6
- Armaturen
- 7
- Führungsschienen
- 8
- Aktivteil
- 9
- Einsenkung
- 10
- Kragen
- 11
- Durchgangsöffnungen
- 12
- Kontaktnocken
- 13
- Innengewinde
- 14
- Gewindebolzen
- 15
- Aussengewinde
- 16, 17
- Metalldeckel
- 18
- Muttern
- 19
- Verbindungsstelle
- 20
- Deckteil
- 21
- Stifte
Claims (15)
- Überspannungsableiter mit einem zwischen zwei stromführenden, zylinderförmigen Armaturen (5, 6) angeordneten, mindestens einen Varistor auf der Basis von Metalloxid enthaltenden, zylinderförmigen Aktivteil (8) und mit einem das Aktivteil (8) mantelförmig umgebenden und von den Armaturen (5, 6) stirnseitig abgeschlossenen Isolierstoffgehäuse (1), welches mit einem das Aktivteil (8) mantelseitig umgebenden Isoliermaterial gefüllt ist, dadurch gekennzeichnet, dass das Isolierstoffgehäuse (1) von einem spritzgegossenen oder extrudierten Isolierstoffrohr (2) sowie von einem auf der Mantelfläche des Rohrs (2) gehaltenen, beschirmten Wetterschutz (3) gebildet ist, dass eine erste (5) beider Armaturen (5, 6) an einem ersten beider Enden in das Rohr (2) eingeformt ist, und dass die zweite Armatur (6) mit einem Aussengewinde (15) unter Bildung von Kontaktkraft in ein Innengewinde des Rohrs (2) eingeschraubt ist.
- Überspannungsableiter nach Anspruch 1, dadurch gekennzeichnet, dass das Rohr (2) von einem faserverstärkten Polymer, insbesondere einem faserverstärkten Thermoplasten, gebildet ist.
- Überspannungsableiter nach Anspruch 2, dadurch gekennzeichnet, dass der Thermoplast ein ca. 20 - 60, vorzugsweise 30 bis 50, Gew% Glasfaser enthaltendes Polyamid ist.
- Überspannungsableiter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass in die Innenseite des Rohrs (2) mindestens drei in Richtung der Rohrachse ausgerichtete Führungsschienen (7) eingeformt sind.
- Überspannungsableiter nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die beiden Armaturen (5, 6) jeweils eine in deren nach aussen weisende Stirnfläche eingeformte und auf deren Mantelfläche geführte, ringförmige Einsenkung (9) aufweisen.
- Überspannungsableiter nach Anspruch 5, dadurch gekennzeichnet, dass die Einsenkung (9) der ersten Armatur (5) einen radial nach innen geführten Kragen (10) des Rohrs (2) aufnimmt.
- Überspannungsableiter nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass in die Einsenkung (9) mindestens eine in Richtung der Rohrachse geführte Durchgangsöffnung (11) eingeformt ist.
- Überspannungsableiter nach Anspruch 7, dadurch gekennzeichnet, dass die Einsenkung der zweiten Armatur (6) durch Aushärten von flüssigem Isoliermittel gebildetes Isoliermaterial aufnimmt, wobei das flüssige Isoliermittel vorwiegend über die Durchgangsöffnungen (11) aus dem Gehäuseinneren in die Einsenkung (9) getreten ist.
- Überspannungsableiter nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die beiden Armaturen (5, 6) jeweils auf ihrer nach innen weisenden Stimfläche auf einer Stimfläche des Aktivteils (8) aufsitzende Kontaktnocken (12) enthalten.
- Überspannungsableiter nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Wetterschutz (3) mindestens einen radial geführten Schirm (4) aufweist.
- Überspannungsableiter nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Stirnseiten des Isolierstoffgehäuses (1) abgeschlossen sind mit zwei über die Enden des Wetterschutzes (3) kragenden Deckeln (16, 17).
- Überspannungsableiter nach Anspruch 11, dadurch gekennzeichnet, dass einer (17) der beiden Deckel über mindestens eine Verbindungsstelle (19) mit der zweiten Armatur (6) verbunden ist.
- Überspannungsableiter nach Anspruch 12, dadurch gekennzeichnet, dass die Verbindungsstelle (19) durch Schweissen, insbesondere Ultraschallschweissen, Löten oder Kleben gebildet ist.
- Überspannungsableiter nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass eine der beiden Stirnseiten des Isolierstoffgehäuses (1) abgeschlossen ist mit einem in den Wetterschutz (3) integrierten Deckteil (19).
- Überspannungsabieiter nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass mindestens eine der beiden Armaturen (5, 6) zusätzlich mit Stiften (21) fixiert ist, welche von aussen durch das Isolierstoffrohr (2) in die mindestens eine Armatur (6) geführt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19650579A DE19650579A1 (de) | 1996-12-06 | 1996-12-06 | Überspannungsableiter |
DE19650579 | 1996-12-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0847062A1 true EP0847062A1 (de) | 1998-06-10 |
EP0847062B1 EP0847062B1 (de) | 2005-06-01 |
Family
ID=7813785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97810853A Expired - Lifetime EP0847062B1 (de) | 1996-12-06 | 1997-11-11 | Überspannungsableiter |
Country Status (9)
Country | Link |
---|---|
US (1) | US5896266A (de) |
EP (1) | EP0847062B1 (de) |
CN (1) | CN1115698C (de) |
AT (1) | ATE297051T1 (de) |
AU (1) | AU728104B2 (de) |
BR (1) | BR9706230B1 (de) |
DE (2) | DE19650579A1 (de) |
ES (1) | ES2243974T3 (de) |
PL (1) | PL183077B1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010037634A1 (de) * | 2008-10-01 | 2010-04-08 | Siemens Aktiengesellschaft | Elektrische vorrichtung mit einem haltegerüst |
WO2011095590A1 (de) | 2010-02-05 | 2011-08-11 | Abb Technology Ag | Überspannungsableiter |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6279811B1 (en) | 2000-05-12 | 2001-08-28 | Mcgraw-Edison Company | Solder application technique |
DE10063697B4 (de) | 2000-12-20 | 2006-07-13 | Siemens Ag | Verfahren und Vorrichtung zur Erfassung der Position eines Elements in einem Fahrzeug, insbesondere für Insassenschutzsysteme |
US6657128B2 (en) | 2001-01-29 | 2003-12-02 | Mcgraw-Edison Company | Hydrophobic properties of polymer housings |
JP2004523397A (ja) * | 2001-04-08 | 2004-08-05 | トレンチ ジャーマニー ゲゼルシャフト ミット ベシュレンクテル ハフツング | 電気的なプラスチック絶縁体を製作するための方法および装置 |
DE102006053986A1 (de) * | 2006-11-10 | 2008-05-15 | Siemens Ag | Überspannungsableiter |
DE102009035646A1 (de) * | 2009-07-29 | 2011-02-10 | Siemens Aktiengesellschaft | Endarmatur für einen Überspannungsableiter und Verfahren zur Herstellung eines Überspannungsableiters |
DE102013213688A1 (de) * | 2013-07-12 | 2015-01-15 | Siemens Aktiengesellschaft | Gussverfahren zur Herstellung einer Schutzummantelung um einen Überspannungsableiter und eine Gießform hierfür |
EP3144942B1 (de) | 2015-09-18 | 2018-02-21 | Siemens Aktiengesellschaft | Überspannungsableiter |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2641423A1 (fr) * | 1988-12-30 | 1990-07-06 | Ferraz | Dispositif parafoudre pour la protection des lignes electriques |
EP0595376A2 (de) * | 1989-04-18 | 1994-05-04 | Cooper Industries, Inc. | Betriebssicherer Überspannungsableiter |
US5336852A (en) * | 1991-02-22 | 1994-08-09 | Hubbell Incorporated | Electrical assembly with end collars for coupling ends of a weathershed housing to the end fittings |
DE4444515A1 (de) * | 1994-10-13 | 1996-04-18 | Siemens Ag | Gasgefüllter Drei-Elektroden-Überspannungsableiter für hohe Schaltleistungen |
EP0726581A2 (de) * | 1995-02-11 | 1996-08-14 | ABB Management AG | Verfahren zur Herstellung eines Isolators |
WO1997050098A1 (en) * | 1996-06-27 | 1997-12-31 | Raychem Corporation | Surge arrester having grooved and ridged terminals |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1170046B (de) * | 1960-10-11 | 1964-05-14 | Licentia Gmbh | Aus spannungsabhaengigen Massewiderstands-scheiben bestehender Widerstandsstapel fuer den Betrieb im Isolier- und Kuehlmittel von Transformatoren |
JPS5949178A (ja) * | 1982-09-14 | 1984-03-21 | 中部電力株式会社 | 避雷碍子 |
US4467387A (en) * | 1982-09-30 | 1984-08-21 | General Electric Company | Combination strut insulator and lightning arrester |
JPS601256A (ja) * | 1983-06-19 | 1985-01-07 | Nippon Steel Chem Co Ltd | ポリアミド樹脂組成物 |
US4899248A (en) * | 1984-12-14 | 1990-02-06 | Hubbell Incorporated | Modular electrical assemblies with plastic film barriers |
CH666575A5 (de) * | 1985-02-26 | 1988-07-29 | Bbc Brown Boveri & Cie | Ueberspannungsableiter. |
DK173921B1 (da) * | 1986-01-29 | 2002-02-18 | Bowthorpe Ind Ltd | Elektrisk overspændingsafledningsindretning, fremgangsmåde og apparat til fremstilling samt en anvendelse af en sådan indretning |
US5043838A (en) * | 1989-03-31 | 1991-08-27 | Hubbell Incorporated | Modular electrical assemblies with pressure relief |
CH682858A5 (de) * | 1991-12-04 | 1993-11-30 | Asea Brown Boveri | Ueberspannungsableiter. |
US5363266A (en) * | 1992-06-18 | 1994-11-08 | Raychem Corporation | Electrical surge arrester |
SI0642141T1 (en) * | 1993-09-06 | 1997-10-31 | Asea Brown Boveri | Surge arrester |
-
1996
- 1996-12-06 DE DE19650579A patent/DE19650579A1/de not_active Withdrawn
-
1997
- 1997-11-07 US US08/965,866 patent/US5896266A/en not_active Expired - Lifetime
- 1997-11-11 ES ES97810853T patent/ES2243974T3/es not_active Expired - Lifetime
- 1997-11-11 AT AT97810853T patent/ATE297051T1/de not_active IP Right Cessation
- 1997-11-11 EP EP97810853A patent/EP0847062B1/de not_active Expired - Lifetime
- 1997-11-11 DE DE59712331T patent/DE59712331D1/de not_active Expired - Lifetime
- 1997-12-03 PL PL97323485A patent/PL183077B1/pl not_active IP Right Cessation
- 1997-12-04 BR BRPI9706230-8A patent/BR9706230B1/pt not_active IP Right Cessation
- 1997-12-05 CN CN97123096A patent/CN1115698C/zh not_active Expired - Fee Related
- 1997-12-05 AU AU46920/97A patent/AU728104B2/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2641423A1 (fr) * | 1988-12-30 | 1990-07-06 | Ferraz | Dispositif parafoudre pour la protection des lignes electriques |
EP0595376A2 (de) * | 1989-04-18 | 1994-05-04 | Cooper Industries, Inc. | Betriebssicherer Überspannungsableiter |
US5336852A (en) * | 1991-02-22 | 1994-08-09 | Hubbell Incorporated | Electrical assembly with end collars for coupling ends of a weathershed housing to the end fittings |
DE4444515A1 (de) * | 1994-10-13 | 1996-04-18 | Siemens Ag | Gasgefüllter Drei-Elektroden-Überspannungsableiter für hohe Schaltleistungen |
EP0726581A2 (de) * | 1995-02-11 | 1996-08-14 | ABB Management AG | Verfahren zur Herstellung eines Isolators |
WO1997050098A1 (en) * | 1996-06-27 | 1997-12-31 | Raychem Corporation | Surge arrester having grooved and ridged terminals |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010037634A1 (de) * | 2008-10-01 | 2010-04-08 | Siemens Aktiengesellschaft | Elektrische vorrichtung mit einem haltegerüst |
WO2011095590A1 (de) | 2010-02-05 | 2011-08-11 | Abb Technology Ag | Überspannungsableiter |
US8593775B2 (en) | 2010-02-05 | 2013-11-26 | Abb Technology Ag | Surge arrester |
Also Published As
Publication number | Publication date |
---|---|
PL323485A1 (en) | 1998-06-08 |
US5896266A (en) | 1999-04-20 |
ATE297051T1 (de) | 2005-06-15 |
DE59712331D1 (de) | 2005-07-07 |
DE19650579A1 (de) | 1998-06-10 |
BR9706230B1 (pt) | 2009-05-05 |
AU4692097A (en) | 1998-06-11 |
BR9706230A (pt) | 1999-03-30 |
CN1115698C (zh) | 2003-07-23 |
AU728104B2 (en) | 2001-01-04 |
CN1184319A (zh) | 1998-06-10 |
EP0847062B1 (de) | 2005-06-01 |
PL183077B1 (pl) | 2002-05-31 |
ES2243974T3 (es) | 2005-12-01 |
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