FR2659169A1 - SURGE PROTECTION DEVICE FOR THE PROTECTION OF ELECTRICAL LINES. - Google Patents
SURGE PROTECTION DEVICE FOR THE PROTECTION OF ELECTRICAL LINES. Download PDFInfo
- Publication number
- FR2659169A1 FR2659169A1 FR9002897A FR9002897A FR2659169A1 FR 2659169 A1 FR2659169 A1 FR 2659169A1 FR 9002897 A FR9002897 A FR 9002897A FR 9002897 A FR9002897 A FR 9002897A FR 2659169 A1 FR2659169 A1 FR 2659169A1
- Authority
- FR
- France
- Prior art keywords
- intermediate piece
- adhesive
- stack
- assembly
- varistors
- 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
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 229920002994 synthetic fiber Polymers 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910007541 Zn O Inorganic materials 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/16—Overvoltage arresters using spark gaps having a plurality of gaps arranged in series
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
- Insulated Conductors (AREA)
- Filters And Equalizers (AREA)
- Non-Insulated Conductors (AREA)
Abstract
Description
La présente invention a trait aux dispositifs parafoudres destinés à laThe present invention relates to surge protective devices intended for the
protection des lignes électriques, tout particulièrement des lignes protection of power lines, especially lines
aériennes à moyenne tension.medium voltage overhead lines.
On connaît des dispositifs de ce genre dans lesquels l'élément d'isolation disposé entre les deux capsules ou électrodes terminales de connexion est constitué par un empilage de varistances à base d'oxyde de Devices of this type are known in which the insulating element disposed between the two capsules or terminal connection electrodes is constituted by a stack of varistors based on oxide of
zinc (Zn O) maintenues sous pression axiale Dans les constructions con- zinc (Zn O) maintained under axial pressure In constructions
nues, cet empilage et les moyens de pression élastique sont contenus à l'intérieur d'un tube rigide en une matière isolante, lui même gainé par une enveloppe en matière synthétique, l'ensemble formé par lesdits tube et enveloppe conférant à l'empilage précité la résistance mécanique naked, this stack and the elastic pressure means are contained inside a rigid tube made of an insulating material, itself sheathed by a plastic envelope, the assembly formed by said tube and envelope giving the stack aforementioned mechanical strength
et l'étanchéité nécessaires à l'utilisation pratique du dispositif. and the sealing necessary for the practical use of the device.
Il va de soi que la présence du tube rigide et des moyens élasti- It goes without saying that the presence of the rigid tube and elastic means
ques de pression complique et renchérit la fabrication des dispositifs of pressure complicates and increases the cost of manufacturing the devices
parafoudres Aussi a-t-on songé à se dispenser d'eux en opérant l'assem- Surge arresters We have also thought of dispensing with them by operating the assembly.
blage mécanique direct des varistances et des électrodes terminales, direct mechanical wiring of varistors and terminal electrodes,
l'ensemble rigide ainsi obtenu étant alors simplement gainé dans une en- the rigid assembly thus obtained then being simply sheathed in a
veloppe isolante de protection Un tel assemblage peut en principe être opéré par collage, mais il faut évidemment avoir recours à une colle de insulating protective cover Such an assembly can in principle be carried out by gluing, but it is obviously necessary to have recourse to an adhesive of
nature conductrice afin de permettre le passage du courant dans l'empi- conductive nature to allow current to flow through the empi
lage; or les essais ont démontré que les colles conductrices vieillis- lage; however tests have shown that conductive adhesives age
saient très mal, au point qu'un bon nombre des parafoudres ainsi réali- know very badly, to the point that a good number of the surge arresters thus
sés perdaient rapidement leur efficacité. They quickly lost their effectiveness.
C'est à cet inconvénient qu'entend remédier la présente invention, laquelle consiste à disposer entre les faces en vis-à-vis des éléments constitutifs (varistances et électrodes) de l'empilage d'isolation, des pièces intermédiaires à profil ondulé qui assurent par écrasement la It is to this drawback that the present invention intends to remedy, which consists in placing between the facing faces of the constituent elements (varistors and electrodes) of the insulation stack, intermediate parts with corrugated profile which overwrite the
connexion électrique tout en ménageant des zones libres propres à rece- electrical connection while providing free areas suitable for receiving
voir la couche de colle nécessaire à l'assemblage mutuel des éléments see the layer of glue necessary for the mutual assembly of the elements
précités.cited above.
On conçoit qu'on se dispense ainsi de toute colle conductrice et qu'on puisse avoir recours à n'importe quelle substance adhésive, au point que le collage peut en certains cas être assuré par la matière synthétique qui est surmoulée sur l'em Dilage d'isolation pour constituer We can see that we thus dispense with all conductive glue and that we can have recourse to any adhesive substance, to the point that bonding can in certain cases be ensured by the synthetic material which is overmolded on the em Dilage insulation to constitute
l'enveloppe étanche de protection.the waterproof protective envelope.
Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer: The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
Fig 1 est une coupe axiale schématique d'un dispositif para- Fig 1 is a schematic axial section of a para-device
foudre établi conformément à La présente invention. lightning established in accordance with the present invention.
Fig 2 est une vue en perspective illustrant un premier mode de mise en oeuvre de L'invention, les pièces étant représentées avant assemblage. Fig 3 est une coupe verticale montrant Les pièces après Fig 2 is a perspective view illustrating a first embodiment of the invention, the parts being shown before assembly. Fig 3 is a vertical section showing the parts after
assemblage par pression et co L Lage. assembly by pressure and co L Lage.
Fig 4 et 5, respectivement 6 et 7, représentent de manière Fig 4 and 5, respectively 6 and 7, represent so
semb Lable deux variantes de réa Lisation. semb Lable two variants of realization.
Fig 8 à 11 illustrent un second mode de mise en oeuvre de Fig 8 to 11 illustrate a second mode of implementation of
l'invention.the invention.
Le dispositif représenté en fig 1 comprend essentiellement un The device shown in fig 1 essentially comprises a
élément d'isolation formé par l'assemblage rigide et résistant d'un em- insulating element formed by the rigid and resistant assembly of an em-
pilage de varistances 1 maintenues sous pression entre deux électrodes terminales de connexion 2, lequel élément 1-2 est recouvert de manière étanche par une enveloppe isolante 3 qui avec ses saillies annulaires 3 a est directement obtenue par surmoulage d'une matière synthétique sur piling of varistors 1 maintained under pressure between two terminal connection electrodes 2, which element 1-2 is sealed in a sealed manner by an insulating envelope 3 which with its annular projections 3 a is directly obtained by overmolding a synthetic material onto
ledit élément.said element.
Il convient ici d'observer que si dans les développements qui vont It should be observed here that if in the developments that will
suivre, le mode d'assemblage suivant l'invention a été décrit et illus- follow, the assembly method according to the invention has been described and illus-
tré comme intéressant deux varistances 1 superposées, les explications doivent être considérées comme valables en ce qui concerne l'assemblage very interesting two varistors 1 superimposed, the explanations should be considered valid with regard to the assembly
de chacune des électrodes 2 avec la varistance 1 d'extrémité. of each of the electrodes 2 with the varistor 1 at the end.
Le mode de mise en oeuvre représenté en fig 2 et 3 fait appel à une pièce intercalaire 4 formée par une rondelle à profil ondulé dont le The embodiment shown in fig 2 and 3 uses an intermediate piece 4 formed by a washer with a corrugated profile, the
diamètre extérieur est légèrement inférieur à celui de chacune des va- outer diameter is slightly smaller than that of each of the
ristances 1 Sur la face transversale de chacune de celles-ci on a dé- resistances 1 On the transverse face of each of these we have
posé, par exemple par un procédé de sérigraphie, une couche de colle 5 sous la forme d'un disque dont le diamètre est inférieur au diamètre applied, for example by a screen printing process, a layer of adhesive 5 in the form of a disc whose diameter is less than the diameter
intérieur de la rondelle ondulée 4. inside of the wavy washer 4.
On conçoit que si on applique une pression axiale sur les deux va- We can see that if we apply an axial pressure on the two va-
ristances 1 superposées avec interposition de la rondelle 4, on obtient l'assemblage montré en fig 3 et l'on peut constater que la rondelle 4 se trouve écrasée entre les deux varistances 1, liées l'une à l'autre resistors 1 superimposed with the interposition of the washer 4, we obtain the assembly shown in fig 3 and we can see that the washer 4 is crushed between the two varistors 1, linked to each other
par la colle provenant des disques 5 La connexion électrique est assu- by glue from the discs 5 The electrical connection is ensured
rée dans de très bonnes conditions par la rondelle 4 à l'état écrasé, tandis que le collage en 5 permet l'obtention d'un ensemble rigide et résistant. La variante suivant fig 4 et 5 ne se distingue de la forme de réalisation qui précède qu'en ce que chaque disque de colle 5 est doublé Rée in very good conditions by the washer 4 in the crushed state, while the bonding in 5 allows obtaining a rigid and resistant. The variant according to fig 4 and 5 differs from the above embodiment only in that each glue disc 5 is doubled
par un anneau de colle 50 qui entoure La rondelle 4. by an adhesive ring 50 which surrounds the washer 4.
Dans la variante suivant fig 6 et 7, la couche de colle 5 se pré- In the variant according to fig 6 and 7, the adhesive layer 5 is pre-
sente sous la forme de deux pastilles rigides qui occupent l'ouverture de la rondelle ondulée 4 et qui coopèrent avec un disque intermédiaire 6, susceptible d'être réalisé soit en un élastomère, soit en aluminium. Ce disque central 6 est destiné à améliorer, par écrasement, l'effet de feels in the form of two rigid pads which occupy the opening of the corrugated washer 4 and which cooperate with an intermediate disc 6, capable of being made either of an elastomer or of aluminum. This central disc 6 is intended to improve, by crushing, the effect of
pression élastique exercé sur les varistances 1. elastic pressure exerted on the varistors 1.
On a illustré en fig 8 à 11 un autre mode de mise en oeuvre de l'invention, suivant lequel la pièce intercalaire prévue entre les faces en vis-à-vis des varistances 1 est constitué par un insert 40 conprenant une partie centrale solidaire de branches radiales (au nombre de quatre dans l'exemple considéré), chacune de ces branches présentant un profil ondulé Fig 10 montre l'assemblage obtenu après pression axiale et écrasement du profil ondulé de l'insert 40 On a en outre supposé que le collage était ici assuré par la matière synthétique qui est surmoulée sur le corps isolant du parafoudre pour la réalisation de l'enveloppe extérieure 3, laquelle matière s'introduit en 30 entre les branches de Another embodiment of the invention has been illustrated in FIG. 8 to 11, according to which the intermediate piece provided between the faces facing the varistors 1 is constituted by an insert 40 comprising a central part integral with radial branches (four in number in the example considered), each of these branches having a wavy profile Fig 10 shows the assembly obtained after axial pressure and crushing of the wavy profile of the insert 40 It was further assumed that the bonding was here provided by the synthetic material which is overmolded on the insulating body of the arrester for the production of the outer casing 3, which material is introduced at 30 between the branches of
l'insert 40.insert 40.
Il va de soi que la conformation de la pièce intercalaire 4 ou 40 peut varier dans une large mesure, pour autant que cette pièce, de par la déformabilité élastique de sa matière constitutive et eu égard à son profil initial, soit propre à s'écraser lors du collage pour garantir It goes without saying that the shape of the intermediate piece 4 or 40 can vary to a large extent, provided that this piece, due to the elastic deformability of its constituent material and having regard to its initial profile, is capable of collapsing when gluing to guarantee
une bonne connexion et que ladite conformation assure bien la réparti- a good connection and that said conformation ensures good distribution
tion des zones d'assemblage mécanique et de connexion électrique. tion of mechanical assembly and electrical connection areas.
Il doit d'ailleurs être entendu que la description qui précède n'a It should also be understood that the above description has not
été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domai- given as an example and does not limit the area
ne de l'invention dont on ne sortirait pas en remplaçant les détails ne of the invention which we would not leave by replacing the details
d'exécution décrits par tous autres équivalents. of execution described by all other equivalents.
Claims (5)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9002897A FR2659169B1 (en) | 1990-03-02 | 1990-03-02 | SURGE PROTECTION DEVICE FOR THE PROTECTION OF ELECTRICAL LINES. |
CA002037115A CA2037115A1 (en) | 1990-03-02 | 1991-02-26 | Lightning arrester for the protection of electric lines |
DE69105779T DE69105779T2 (en) | 1990-03-02 | 1991-03-01 | Lightning arrester arrangement for protecting electrical lines. |
AT91420071T ATE115762T1 (en) | 1990-03-02 | 1991-03-01 | LIGHTNING ARRANGEMENT FOR THE PROTECTION OF ELECTRICAL LINES. |
DK91420071.2T DK0445054T3 (en) | 1990-03-02 | 1991-03-01 | Lightning conductor to protect electrical wiring |
EP91420071A EP0445054B1 (en) | 1990-03-02 | 1991-03-01 | Lightning arrestor device for the protection of electric lines |
ES91420071T ES2065653T3 (en) | 1990-03-02 | 1991-03-01 | LIGHTNING DEVICE FOR THE PROTECTION OF ELECTRICAL LINES. |
TR91/0186A TR25323A (en) | 1990-03-02 | 1991-03-04 | PURPOSE YILDIRIMSARAR INSTALLATION FOR THE PROTECTION OF ELECTRICAL LINES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9002897A FR2659169B1 (en) | 1990-03-02 | 1990-03-02 | SURGE PROTECTION DEVICE FOR THE PROTECTION OF ELECTRICAL LINES. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2659169A1 true FR2659169A1 (en) | 1991-09-06 |
FR2659169B1 FR2659169B1 (en) | 1992-06-19 |
Family
ID=9394483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9002897A Expired - Lifetime FR2659169B1 (en) | 1990-03-02 | 1990-03-02 | SURGE PROTECTION DEVICE FOR THE PROTECTION OF ELECTRICAL LINES. |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0445054B1 (en) |
AT (1) | ATE115762T1 (en) |
CA (1) | CA2037115A1 (en) |
DE (1) | DE69105779T2 (en) |
DK (1) | DK0445054T3 (en) |
ES (1) | ES2065653T3 (en) |
FR (1) | FR2659169B1 (en) |
TR (1) | TR25323A (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH682858A5 (en) * | 1991-12-04 | 1993-11-30 | Asea Brown Boveri | Surge arresters. |
DE4306691A1 (en) * | 1993-03-04 | 1994-11-03 | Abb Management Ag | Surge arresters |
US6430020B1 (en) * | 1998-09-21 | 2002-08-06 | Tyco Electronics Corporation | Overvoltage protection device including wafer of varistor material |
DE29912703U1 (en) * | 1999-07-19 | 1999-11-11 | Siemens Ag | Surge arresters |
ES2166689B1 (en) * | 2000-01-26 | 2003-10-16 | Ind De Aparellaje Electrico S | SURVEY DOWNLOADER. |
US7433169B2 (en) | 2005-12-15 | 2008-10-07 | Raycap Corporation | Overvoltage protection devices including wafer of varistor material |
US8743525B2 (en) | 2012-06-19 | 2014-06-03 | Raycap Intellectual Property, Ltd | Overvoltage protection devices including wafer of varistor material |
US9906017B2 (en) | 2014-06-03 | 2018-02-27 | Ripd Research And Ip Development Ltd. | Modular overvoltage protection units |
US10319545B2 (en) | 2016-11-30 | 2019-06-11 | Iskra Za{hacek over (s)}{hacek over (c)}ite d.o.o. | Surge protective device modules and DIN rail device systems including same |
US10707678B2 (en) | 2016-12-23 | 2020-07-07 | Ripd Research And Ip Development Ltd. | Overvoltage protection device including multiple varistor wafers |
US10447026B2 (en) | 2016-12-23 | 2019-10-15 | Ripd Ip Development Ltd | Devices for active overvoltage protection |
US10340110B2 (en) | 2017-05-12 | 2019-07-02 | Raycap IP Development Ltd | Surge protective device modules including integral thermal disconnect mechanisms and methods including same |
US10685767B2 (en) | 2017-09-14 | 2020-06-16 | Raycap IP Development Ltd | Surge protective device modules and systems including same |
US11223200B2 (en) | 2018-07-26 | 2022-01-11 | Ripd Ip Development Ltd | Surge protective devices, circuits, modules and systems including same |
US11862967B2 (en) | 2021-09-13 | 2024-01-02 | Raycap, S.A. | Surge protective device assembly modules |
US11723145B2 (en) | 2021-09-20 | 2023-08-08 | Raycap IP Development Ltd | PCB-mountable surge protective device modules and SPD circuit systems and methods including same |
US11990745B2 (en) | 2022-01-12 | 2024-05-21 | Raycap IP Development Ltd | Methods and systems for remote monitoring of surge protective devices |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3544141A1 (en) * | 1984-12-14 | 1986-06-26 | Hubbell Inc Harvey | WINDED ELECTRICAL ARRANGEMENTS AND METHOD FOR PRODUCING SUCH |
EP0281945A1 (en) * | 1987-03-06 | 1988-09-14 | Sediver, Societe Europeenne D'isolateurs En Verre Et Composite | Manufacturing process for a lightning arrester |
EP0304690A1 (en) * | 1987-08-06 | 1989-03-01 | Sediver, Societe Europeenne D'isolateurs En Verre Et Composite | Production process for a lightning arrester, and lightning arrester obtained by this process |
-
1990
- 1990-03-02 FR FR9002897A patent/FR2659169B1/en not_active Expired - Lifetime
-
1991
- 1991-02-26 CA CA002037115A patent/CA2037115A1/en not_active Abandoned
- 1991-03-01 DK DK91420071.2T patent/DK0445054T3/en active
- 1991-03-01 AT AT91420071T patent/ATE115762T1/en not_active IP Right Cessation
- 1991-03-01 ES ES91420071T patent/ES2065653T3/en not_active Expired - Lifetime
- 1991-03-01 EP EP91420071A patent/EP0445054B1/en not_active Expired - Lifetime
- 1991-03-01 DE DE69105779T patent/DE69105779T2/en not_active Expired - Fee Related
- 1991-03-04 TR TR91/0186A patent/TR25323A/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3544141A1 (en) * | 1984-12-14 | 1986-06-26 | Hubbell Inc Harvey | WINDED ELECTRICAL ARRANGEMENTS AND METHOD FOR PRODUCING SUCH |
EP0281945A1 (en) * | 1987-03-06 | 1988-09-14 | Sediver, Societe Europeenne D'isolateurs En Verre Et Composite | Manufacturing process for a lightning arrester |
EP0304690A1 (en) * | 1987-08-06 | 1989-03-01 | Sediver, Societe Europeenne D'isolateurs En Verre Et Composite | Production process for a lightning arrester, and lightning arrester obtained by this process |
Also Published As
Publication number | Publication date |
---|---|
TR25323A (en) | 1993-01-01 |
EP0445054A1 (en) | 1991-09-04 |
DE69105779D1 (en) | 1995-01-26 |
DK0445054T3 (en) | 1995-01-23 |
CA2037115A1 (en) | 1991-09-03 |
ATE115762T1 (en) | 1994-12-15 |
FR2659169B1 (en) | 1992-06-19 |
EP0445054B1 (en) | 1994-12-14 |
ES2065653T3 (en) | 1995-02-16 |
DE69105779T2 (en) | 1995-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |