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1. WO1982001792 - PROTECTION DEVICE AGAINST DISCHARGE OVERVOLTAGES IN A GAS WITH CONCENTRIC ENCLOSING SLEEVE

Publication Number WO/1982/001792
Publication Date 27.05.1982
International Application No. PCT/DE1981/000197
International Filing Date 11.11.1981
IPC
H01T 1/14 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
1Details of spark gaps
14Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
CPC
H01C 7/12
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
CRESISTORS
7Non-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
10voltage responsive, i.e. varistors
12Overvoltage protection resistors
H01T 1/14
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
1Details of spark gaps
14Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • BOY, Jürgen
  • LANGE, Gerhard
Priority Data
P 30 42 847.813.11.1980DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(EN) PROTECTION DEVICE AGAINST DISCHARGE OVERVOLTAGES IN A GAS WITH CONCENTRIC ENCLOSING SLEEVE
(FR) DISPOSITIF DE PROTECTION CONTRE LES SURTENSIONS A DECHARGE DANS UN GAZ AVEC DOUILLE ENVELOPPANTE CONCENTRIQUE
Abstract
(EN)
Protection device against overvoltages (1) comprising a casing filled with gas, wherein electrodes (3, 4) located facing each other are maintained at a distance from each other by a tubular insulating body (5) and on the inner wall of which at least one ignition strip (6) extends in the direction from one electrode to the other electrode, the device (1) being surrounded by a concentric sleeve (2). In such device (1), the electric influence of said sleeve (2) is used in order to further improve the characteristics of the useful life of the device. To this effect, the invention provides that the sleeve (2) is set to the earth potential, that the ignition strip (6) is electrically connected to the electrode (3) shaped as a rod or pin and is ended in the low vaporization rear space of the other hollow electrode (4), both electrodes (3, 4) being arranged so that the distance separating the electrodes (3, 4) is approximately equal to the distance comprised between the hollow electrode (4) and the ignition strip (6). The invention applies to protection devices against discharge overvoltages ina gas.
(FR)
Dispositif de protection contre les surtensions (1) comprenant un boîtier rempli de gaz, dans lequel des électrodes (3, 4) situées en regard l'une de l'autre sont maintenues à distance par un corps isolant (5) tubulaire et sur la paroi intérieure duquel au moins une bande d'allumage (6) s'étend dans la direction allant d'une électrode à l'autre, le dispositif (1) étant entouré d'une douille concentrique (2). Dans ce dispositif (1), l'influence électrique de cette douille (2) est utilisée en vue d'améliorer encore les caractéristiques de longétivité du dispositif. A cet effet, l'invention prévoit que la douille (2) est mise au potentiel de la terre, que la bande d'allumage (6) est reliée électriquement à l'électrode (3) en forme de tige ou de broche et se termine dans l'espace arrière à faible vaporisation de l'autre électrode (4) qui est creuse, les deux électrodes (3, 4) étant disposées de telle manière que la distance séparant les électrodes (3, 4) soit approximativement égale à la distance comprise entre l'électrode creuse (4) et la bande d'allumage (6). L'invention s'applique aux dispositifs de protection contre les surtensions à décharge dans un gaz.
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