EP0281945A1 - Verfahren zur Herstellung eines Blitzableiters - Google Patents

Verfahren zur Herstellung eines Blitzableiters Download PDF

Info

Publication number: EP0281945A1
Authority: EP; European Patent Office
Prior art keywords: rod; pellets; fittings; manufacturing; stack
Prior art date: 1987-03-06
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

EP88103272A

Other languages

English (en)

French (fr)

Other versions

EP0281945B1 (de

Inventor

René Parraud

Denis Thuillier

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.)

Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA

Original Assignee

Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA

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.)

1987-03-06

Filing date

1988-03-03

Publication date

1988-09-14

1988-03-03 Application filed by Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA filed Critical Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA

1988-03-03 Priority to AT88103272T priority Critical patent/ATE63400T1/de

1988-09-14 Publication of EP0281945A1 publication Critical patent/EP0281945A1/de

1991-05-08 Application granted granted Critical

1991-05-08 Publication of EP0281945B1 publication Critical patent/EP0281945B1/de

2008-03-03 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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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; Arresters
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making

Definitions

the present invention relates to a method of manufacturing a lightning arrester and a lightning arrester obtained by this method.
a surge arrester is a device placed between the phase and the ground of a high-voltage line and which makes it possible to limit the amplitude and the duration of atmospheric overvoltages (shock due to lightning and induction phenomena in conductors), or temporary electrical overvoltages in the network (operating shock).
a surge arrester The functions of a surge arrester are therefore on the one hand to permanently support the nominal operating voltage, and on the other hand to drain the strong discharge current appearing during a temporary overvoltage, so as to protect the equipment from the line (transformers .).
a core of a material of the varistor type based for example on zinc oxide ZnO, the electrical resistivity of which is highly non-linear as a function of the applied voltage.
This characteristic of non-linearity allows such a surge arrester to let pass: - a low current (for example of the order of 0.5 mA / cm2) when the operating voltage is permanently applied to the surge arrester which then has very high resistance.
This current is essentially of capacitive origin since the relative permittivity of such varistors is very high, - a strong current, which can reach several tens of kiloamperes, when the applied voltage reaches a starting threshold from which the resistance of the varistors becomes very low.
a central core comprising several cylindrical pellets stacked and pierced with holes through which passes through an insulating bar which provides this core with a certain mechanical rigidity.
the central core and the two end fittings are mechanically linked by a common envelope heat shrink.
the object of the present invention is to produce a surge arrester at reduced cost which does not have the drawbacks of the surge arresters previously described.
the present invention relates to a method of manufacturing a lightning arrester comprising two end fittings on either side of a substantially cylindrical central core formed by a stack of pellets of varistor type material, pierced with holes through which they are strung on a central strip of laminated material, characterized by the fact that is put in compression by means of said rod the assembly of said stack against two faces opposite said fittings, - filling the space between the rod and said pellets by casting or injecting an insulating material, the assembly thus produced being perfectly rigid, - That there is overmolded on said assembly an elastomer coating of the EPDM type which is perfectly adherent to all the surfaces of the core and of the fittings which it covers.
said core comprises hollow metal spacers interposed between pellets; thanks to the recesses, said space between the rod and said pellets is filled with elastomer at the time of molding of said coating.
the operations can be carried out following: a first end of said rod is fixed in the first fitting, said threads are threaded onto said rod, - the second end of the rod is fixed in the second fitting, - the assembly obtained is put in longitudinal traction so as to be able to obtain a spacing within the stack allowing the passage of a hollowed shim, we release the traction.
the thickness of the shim is chosen as a function of the desired prestressing load on the pads.
Said shim can be placed between two pads or between a pad and one of said fittings.
said pellets are maintained with the rod under longitudinal compression by means of springs arranged between said faces of said fittings and the ends of said stack of pellets.
the ends of the rod can be fixed inside their respective fittings by gluing or shrinking.
the surge arresters 100 and 200 visible in FIGS. 1 and 2F are obtained by the method according to the invention shown diagrammatically in FIGS. 2A to 2E.
the second fitting 20 is fixed to the second end of the rod 1 by a sleeving shown diagrammatically by the arrows 24. A compact assembly has been produced.
a longitudinal traction 26 is applied to the two ends 25 of the fittings so as to leave a sufficient gap to introduce into the stack a metal wedge 27 having a recess 28.
this filling can be carried out from non-illustrated orifices provided in the end fittings. The result is a perfectly sealed and rigid mechanical assembly.
the last operation consists in overmolding on this assembly a finned coating 30 of EPDM elastomoere which adheres perfectly to the entire outer surface of the above-mentioned assembly. ( Figure 2F).
the arrester 100 also has the preloaded rod 1 and an interposed hollow metal block referenced 45 between the two pads 6 and 7 with two metal washers 46 ensuring electrical continuity.
the arrester 300 of FIG. 3 also includes a rod 1 on which are pierced pierced pellets 6, 7, 8.
the ends of the rod 1 are sleeved or glued in cavities 55 provided in end fittings 52 and 53 having in off shoulders 56 and 57.
An insulating mixture can be introduced through orifices 70 in order to fill the gaps which may exist between the rod 1 and the pads 6, 7, 8. This mixture is chosen so as not to annihilate the compression function of the springs 61 and 63. Finally, the coating 30 is produced by overmolding.
the invention is not limited to the embodiments described and shown. Without departing from the scope of the invention, any means can be replaced by equivalent means.
the wedge of conductive material can be full. split, fan-shaped with slats etc ...
EPDM was given as an example of an elastomer, but any other insulating coating can be envisaged, for example based on resin, loaded or not ...

Landscapes

Engineering & Computer Science (AREA)
Microelectronics & Electronic Packaging (AREA)
Physics & Mathematics (AREA)
Electromagnetism (AREA)
Thermistors And Varistors (AREA)
Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Peptides Or Proteins (AREA)
Elimination Of Static Electricity (AREA)
Details Of Indoor Wiring (AREA)
Small-Scale Networks (AREA)
Data Exchanges In Wide-Area Networks (AREA)
Sewing Machines And Sewing (AREA)
Diaphragms For Electromechanical Transducers (AREA)

EP88103272A 1987-03-06 1988-03-03 Verfahren zur Herstellung eines Blitzableiters Expired - Lifetime EP0281945B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT88103272T ATE63400T1 (de)	1987-03-06	1988-03-03	Verfahren zur herstellung eines blitzableiters.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8703049		1987-03-06
FR8703049		1987-03-06

Publications (2)

Publication Number	Publication Date
EP0281945A1 true EP0281945A1 (de)	1988-09-14
EP0281945B1 EP0281945B1 (de)	1991-05-08

Family

ID=9348666

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP88103272A Expired - Lifetime EP0281945B1 (de)	1987-03-06	1988-03-03	Verfahren zur Herstellung eines Blitzableiters

Country Status (11)

Country	Link
US (1)	US4825188A (de)
EP (1)	EP0281945B1 (de)
JP (1)	JP2647893B2 (de)
AT (1)	ATE63400T1 (de)
AU (1)	AU595433B2 (de)
BR (1)	BR8800980A (de)
CA (1)	CA1310811C (de)
DE (1)	DE3862658D1 (de)
ES (1)	ES2022494B3 (de)
GR (1)	GR3002242T3 (de)
NO (1)	NO169413C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0406099A1 (de) *	1989-06-30	1991-01-02	Sediver, Societe Europeenne D'isolateurs En Verre Et Composite	Wechselstrom-Oberleitungsisolator mit Lichtbogen-Schutzanordnung
EP0445054A1 (de) *	1990-03-02	1991-09-04	FERRAZ Société Anonyme	Blitzableiteranordnung zum Schutz elektrischer Leitungen
EP0388779A3 (de) *	1989-03-20	1992-01-15	Alcatel Stk A/S	Kabelendverschluss
US5291366A (en) *	1991-12-04	1994-03-01	Asea Brown Boveri Ltd.	Surge voltage arrester

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2698736B1 (fr) *	1992-11-27	1995-03-17	Soule Sa	Perfectionnements aux parafoudres à varistances notamment pour haute tension.
US5757604A (en) *	1996-06-27	1998-05-26	Raychem Corporation	Surge arrester having grooved and ridged terminals
US5680289A (en) *	1996-06-27	1997-10-21	Raychem Corporation	Surge arrester
US5712757A (en) *	1996-06-27	1998-01-27	Raychem Corporation	Surge arrester having ridged terminals
FR2757693B1 (fr) *	1996-12-23	1999-02-19	Sediver	Parafoudre avec une enveloppe ayant une surface exterieure gaufree
AU737108B2 (en) *	1997-02-25	2001-08-09	Bowthorpe Industries Limited	Improvements relating to electrical surge arresters
GB2322487B (en) *	1997-02-25	2001-07-11	Bowthorpe Ind Ltd	Improvements relating to electrical surge arresters
US5930102A (en)	1997-10-08	1999-07-27	Joslyn Manufacturing Co.	Surge arrester having single surge arresting block
US6014306A (en) *	1998-09-24	2000-01-11	Hubbell Incorporated	Electrical device with wedge insert gas seal for probe
US6519129B1 (en)	1999-11-02	2003-02-11	Cooper Industries, Inc.	Surge arrester module with bonded component stack
ES2166689B1 (es) *	2000-01-26	2003-10-16	Ind De Aparellaje Electrico S	Descargador de sobretensiones.
DE10020129C1 (de) *	2000-04-14	2001-11-15	Siemens Ag	Baugruppe mit Überspannungsableiter für eine Hochspannungsanlage
US6279811B1 (en)	2000-05-12	2001-08-28	Mcgraw-Edison Company	Solder application technique
US7015786B2 (en) *	2001-08-29	2006-03-21	Mcgraw-Edison Company	Mechanical reinforcement to improve high current, short duration withstand of a monolithic disk or bonded disk stack
US7436283B2 (en) *	2003-11-20	2008-10-14	Cooper Technologies Company	Mechanical reinforcement structure for fuses
US8117739B2 (en) *	2004-01-23	2012-02-21	Cooper Technologies Company	Manufacturing process for surge arrester module using pre-impregnated composite
US7075406B2 (en) *	2004-03-16	2006-07-11	Cooper Technologies Company	Station class surge arrester
US7633737B2 (en) *	2004-04-29	2009-12-15	Cooper Technologies Company	Liquid immersed surge arrester
DE102005024206B4 (de) *	2005-05-25	2007-03-15	Tridelta Überspannungsableiter Gmbh	Überspannungsableiter mit Käfig-Design
GB2546492A (en) *	2016-01-19	2017-07-26	Mpe Ip Ltd	Varistors
TWI633728B (zh) *	2017-10-11	2018-08-21	呂承彰	避雷裝置及其傳輸模組
US10741313B1 (en) *	2019-02-06	2020-08-11	Eaton Intelligent Power Limited	Bus bar assembly with integrated surge arrestor
CN113205933B (zh) *	2021-04-30	2023-03-21	良科电子(重庆)有限公司	一种多用途的中心轴mov组件
US11894166B2 (en)	2022-01-05	2024-02-06	Richards Mfg. Co., A New Jersey Limited Partnership	Manufacturing process for surge arrestor module using compaction bladder system
US12444522B2 (en)	2022-01-05	2025-10-14	Richards Mfg. Co. Sales, Llc	Manufacturing process for surge arrestor module using compaction bladder system
CN116190029B (zh) *	2022-12-27	2024-07-05	西安西电避雷器有限责任公司	一种避雷器芯体装配设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0008181A1 (de) *	1978-08-02	1980-02-20	Rte Corporation	Überspannungsableiter für unterirdische Systeme
GB2073965A (en) *	1980-04-08	1981-10-21	Bowthorpe Emp Ltd	Surge diverter/arrester
EP0196370A1 (de) *	1985-02-07	1986-10-08	BBC Brown Boveri AG	Verfahren zur Herstellung eines Überspannungsableiters unter Verwendung eines Varistors auf ZnO-Basis und danach hergestellter Überspannungsableiter
US4638285A (en) *	1985-02-28	1987-01-20	Siemens Energy & Automation, Inc.	Surge suppressing resistor for a disconnect switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5919448B2 (ja) *	1978-03-03	1984-05-07	株式会社日立製作所	避雷器
JPS6070702A (ja) *	1983-09-26	1985-04-22	株式会社日立製作所	防爆形酸化亜鉛避雷器
JPS6078595U (ja) *	1983-11-02	1985-05-31	日本碍子株式会社	限流要素ユニツト
JPH06103609B2 (ja) *	1986-05-22	1994-12-14	日本碍子株式会社	耐雷碍子

1988
- 1988-03-02 AU AU12573/88A patent/AU595433B2/en not_active Ceased
- 1988-03-02 JP JP63049446A patent/JP2647893B2/ja not_active Expired - Lifetime
- 1988-03-03 US US07/163,676 patent/US4825188A/en not_active Expired - Lifetime
- 1988-03-03 AT AT88103272T patent/ATE63400T1/de not_active IP Right Cessation
- 1988-03-03 NO NO880941A patent/NO169413C/no not_active IP Right Cessation
- 1988-03-03 DE DE8888103272T patent/DE3862658D1/de not_active Expired - Lifetime
- 1988-03-03 ES ES88103272T patent/ES2022494B3/es not_active Expired - Lifetime
- 1988-03-03 EP EP88103272A patent/EP0281945B1/de not_active Expired - Lifetime
- 1988-03-04 CA CA000560654A patent/CA1310811C/fr not_active Expired - Lifetime
- 1988-03-07 BR BR8800980A patent/BR8800980A/pt not_active IP Right Cessation
1991
- 1991-07-03 GR GR91400955T patent/GR3002242T3/el unknown

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0008181A1 (de) *	1978-08-02	1980-02-20	Rte Corporation	Überspannungsableiter für unterirdische Systeme
GB2073965A (en) *	1980-04-08	1981-10-21	Bowthorpe Emp Ltd	Surge diverter/arrester
EP0196370A1 (de) *	1985-02-07	1986-10-08	BBC Brown Boveri AG	Verfahren zur Herstellung eines Überspannungsableiters unter Verwendung eines Varistors auf ZnO-Basis und danach hergestellter Überspannungsableiter
US4638285A (en) *	1985-02-28	1987-01-20	Siemens Energy & Automation, Inc.	Surge suppressing resistor for a disconnect switch

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0388779A3 (de) *	1989-03-20	1992-01-15	Alcatel Stk A/S	Kabelendverschluss
US5206780A (en) *	1989-03-20	1993-04-27	Alcatel Stk A/S	Cable termination
EP0406099A1 (de) *	1989-06-30	1991-01-02	Sediver, Societe Europeenne D'isolateurs En Verre Et Composite	Wechselstrom-Oberleitungsisolator mit Lichtbogen-Schutzanordnung
FR2649243A1 (fr) *	1989-06-30	1991-01-04	Sediver Ste Europ Isolat Verre	Isolateur de ligne a courant alternatif muni d'un eclateur de protection
EP0445054A1 (de) *	1990-03-02	1991-09-04	FERRAZ Société Anonyme	Blitzableiteranordnung zum Schutz elektrischer Leitungen
FR2659169A1 (fr) *	1990-03-02	1991-09-06	Ferraz	Dispositif parafoudre pour la protection des lignes electriques.
TR25323A (tr) *	1990-03-02	1993-01-01	Ferraz	Elektrik hatlarinin korunmasi icin amaclanmis yildirimsavar tertibat
US5291366A (en) *	1991-12-04	1994-03-01	Asea Brown Boveri Ltd.	Surge voltage arrester

Also Published As

Publication number	Publication date
NO169413B (no)	1992-03-09
ES2022494B3 (es)	1991-12-01
ATE63400T1 (de)	1991-05-15
AU595433B2 (en)	1990-03-29
NO169413C (no)	1992-06-17
AU1257388A (en)	1988-09-08
BR8800980A (pt)	1988-10-11
EP0281945B1 (de)	1991-05-08
NO880941L (no)	1988-09-07
CA1310811C (fr)	1992-12-01
DE3862658D1 (de)	1991-06-13
JP2647893B2 (ja)	1997-08-27
GR3002242T3 (en)	1992-12-30
JPS63228701A (ja)	1988-09-22
US4825188A (en)	1989-04-25
NO880941D0 (no)	1988-03-03

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Date	Code	Title	Description
1988-07-30	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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Publication	Publication Date	Title
EP0281945B1 (de)	1991-05-08	Verfahren zur Herstellung eines Blitzableiters
CA1305513C (fr)	1992-07-21	Procede de fabrication d'un parafoudre et parafoudre obtenu par ce procede
CA1315963C (fr)	1993-04-13	Procede de fabrication d'un parafoudre et parafoudre obtenu par ce procede
EP0605265B1 (de)	1996-08-21	Überspannungsableiter auf Varistor-Basis, insbesondere für hohe Spannungen
US5363266A (en)	1994-11-08	Electrical surge arrester
EP0120787B1 (de)	1987-04-08	Verfahren zum Giessen der isolierenden Bekleidung eines organischen elektrischen Isolators grosser Länge
EP0958584B1 (de)	2002-10-02	Verbesserter überspannungsleiter auf varistor-basis
US6396676B1 (en)	2002-05-28	Electrical surge arresters
EP0397163B1 (de)	1993-11-10	Dichte Umhüllung auf der Basis einer faserartigen Umwicklung und zusammengesetzter Blitzableiter als Anwendung
FR2735816A1 (fr)	1996-12-27	Bobine d'allumage a separateurs d'enroulement secondaire ne filtrant pas/ne segregant pas
FR2739720A1 (fr)	1997-04-11	Procede de fabrication d'un isolateur et isolateur realise selon ce procede
CA2356383C (fr)	2009-01-20	Parafoudre perfectionne a base de varistances electriques
EP0606409A1 (de)	1994-07-20	Überspannungsschutz.
EP1705772A2 (de)	2006-09-27	Synthetisches Kabelende für Gleichstromkabel
FR2498022A1 (fr)	1982-07-16	Procede et equipement de realisation de jonctions de conducteurs electriques a isolant sec pour tensions elevees
EP0406099A1 (de)	1991-01-02	Wechselstrom-Oberleitungsisolator mit Lichtbogen-Schutzanordnung
EP0851549A1 (de)	1998-07-01	Überspannungsableiter mit einem aus thermoplastischen Material hergestellten Gehäuse mit einer auswendigen geprägten Oberfläche
FR2754128A1 (fr)	1998-04-03	Dispositif de chauffage electrique, procede de fabrication et radiateur ainsi equipe
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GB2322487A (en)	1998-08-26	Surge arrester
FR2720199A1 (fr)	1995-11-24	Structure de liaison électrique d'un manchon protecteur avec une extrémité d'un écran semi-conducteur d'un câble électrique.