EP0700589A1 - Gas-filled overvoltage diverter - Google Patents
Gas-filled overvoltage diverterInfo
- Publication number
- EP0700589A1 EP0700589A1 EP94915504A EP94915504A EP0700589A1 EP 0700589 A1 EP0700589 A1 EP 0700589A1 EP 94915504 A EP94915504 A EP 94915504A EP 94915504 A EP94915504 A EP 94915504A EP 0700589 A1 EP0700589 A1 EP 0700589A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- electrodes
- surge arrester
- insulator
- gas
- 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
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
- H01T1/20—Means for starting arc or facilitating ignition of spark gap
Definitions
- the invention is in the field of electronic components and can be used in the design of gas-filled surge arresters in which the electrodes are coated with an activating compound to ensure the ignition properties and at least one person on the wall of the insulating body axially extending ignition line and an additional ionization source are applied.
- 20 electrodes arranged activation mass can be coordinated.
- a surge arrester which has two electrodes inserted on the end face into a ceramic insulator, the facing electrode surfaces of which are coated with an activating compound, these being in recesses in the electrical
- the surface is arranged.
- On the inner wall there are several ones running in the axial direction of the ceramic insulator
- the invention is based on the object of designing the overvoltage arrester so that it has a very low ignition delay in dark rooms even without the use of a radioactive preparation.
- the additional ionization source consists of a coating connecting the two electrodes made of an electroluminescent material based on alkali and / or alkaline earth metal halides, the coating having a thickness of about 50 to 500 ⁇ m having.
- Potassium and sodium bromide, potassium and sodium chloride, as well as sodium fluoride and barium chloride, for example, can be used for the coating provided according to the invention (Opt. Spectrosc. (USSR) 51 (2), Aug. 1981, pages 165- 168).
- Alkali fluorides and bromides which contain an addition of an alkaline earth metal chloride are particularly suitable as the basic substance. The addition should be 5 - 30% atomic%.
- the melting process required to apply the coating can be carried out with regard to the melting temperature. aims to be controlled.
- the material of the coating can additionally contain dielectric or ferroelectric crystals, for example based on titanium or aluminum oxide or barium titanate, lithium niobate or lithium tantalate. Such crystals, which have a grain size of about 10-30 ⁇ m, produce an increased charge density at their interface, which leads to a higher current flow in the electroluminescent coating and thus to a higher photon yield.
- the electroluminescent coating is applied as a strip along the axis of the insulator.
- a strip can have a width of 1 to 5 mm.
- This strip can at the same time cover the ignition lines provided on the inner wall of the insulator.
- an arrangement is also possible in which a plurality of strip-shaped coatings are arranged alternately with a plurality of ignition lines. If necessary, the entire inner surface of the insulator can also be provided with the coating.
- FIGS. 1 to 3 Two exemplary embodiments of the new surge arrester are shown in FIGS. 1 to 3.
- 1 shows a surge arrester with a coating applied to the inside of the insulator
- FIG. 2 shows a coating enriched with crystals
- 3 shows a detail of the development of the inner surface of a ceramic insulator, which is alternately coated with dash lines and luminescent strips.
- the surge arrester according to FIG. 1 consists of the two cup-shaped electrodes 1 and 2, which are soldered into the end of the ceramic insulator 3.
- the active surfaces of electrodes 1 and 2 are coated with an activation compound 4, which is embedded in surface depressions of the electrodes.
- This activating mass is a customary mass based on alkali or alkaline earth metal halides with a metal additive such as a barium aluminum alloy, titanium, molybdenum and / or nickel.
- the surge arrester is provided with a gas filling 5 based on argon and / or neon, optionally with an addition of hydrogen.
- the inner wall of the ceramic insulator is also provided with a coating 7 made of an electroluminescent material, this coating contacting the two electrodes 1 and 2.
- crystals 8 are embedded in the coating 7.
- a strip-shaped coating 9 can also be provided, which Change with dashes 6 is arranged.
- two or four priming lines 6 and two or four strip-shaped coatings 9 can be present.
- the coatings 7 and 9 are applied by
- Heat treatment causes the coating material to melt; this melting is necessary for the later effectiveness of the coating.
Landscapes
- Thermistors And Varistors (AREA)
- Spark Plugs (AREA)
- Emergency Protection Circuit Devices (AREA)
- Insulators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4318994A DE4318994C2 (en) | 1993-05-26 | 1993-05-26 | Gas-filled surge arrester |
DE4318994 | 1993-05-26 | ||
PCT/DE1994/000589 WO1994028607A1 (en) | 1993-05-26 | 1994-05-18 | Gas-filled overvoltage diverter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0700589A1 true EP0700589A1 (en) | 1996-03-13 |
EP0700589B1 EP0700589B1 (en) | 1998-07-22 |
Family
ID=6489887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94915504A Expired - Lifetime EP0700589B1 (en) | 1993-05-26 | 1994-05-18 | Gas-filled overvoltage diverter |
Country Status (6)
Country | Link |
---|---|
US (1) | US5671114A (en) |
EP (1) | EP0700589B1 (en) |
JP (1) | JP2762399B2 (en) |
CN (1) | CN1039612C (en) |
DE (2) | DE4318994C2 (en) |
WO (1) | WO1994028607A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH691245A5 (en) * | 1996-01-12 | 2001-05-31 | Epcos Ag | Gas-filled discharge path. |
DE19632417C1 (en) * | 1996-08-05 | 1998-05-07 | Siemens Ag | Hydrogen-containing gas-filled surge diverter |
DE29702309U1 (en) * | 1997-01-31 | 1998-06-04 | Siemens AG, 80333 München | Gas-filled surge arrester with two cup-like electrodes |
DE19804851C1 (en) * | 1998-01-30 | 1999-11-04 | Siemens Ag | Gas-filled discharge path e.g. for overvoltage diverter with ceramic insulator |
US6194820B1 (en) | 1998-02-20 | 2001-02-27 | Shinko Electric Industries Co., Ltd. | Discharge tube having switching spark gap |
JP2001093644A (en) * | 1999-07-16 | 2001-04-06 | Shinko Electric Ind Co Ltd | Discharge tube |
EP1788680A4 (en) * | 2004-07-15 | 2013-12-04 | Mitsubishi Materials Corp | Surge absorber |
DE102005013499A1 (en) * | 2005-03-23 | 2006-10-05 | Epcos Ag | Gas filled discharge line |
DE102005016848A1 (en) * | 2005-04-12 | 2006-10-19 | Epcos Ag | Surge arresters |
DE102005036265A1 (en) | 2005-08-02 | 2007-02-08 | Epcos Ag | radio link |
CN101297452A (en) | 2005-09-14 | 2008-10-29 | 力特保险丝有限公司 | Gas-filled surge arrester, activating compound, ignition stripes and method therefore |
DE102008044845B4 (en) * | 2008-08-28 | 2015-04-09 | Epcos Ag | Bias network |
DE102013012842A1 (en) * | 2013-08-02 | 2015-02-05 | Epcos Ag | Process for the production of a large number of arresters in the compound, arrester and arrester composite |
JP6268928B2 (en) * | 2013-10-30 | 2018-01-31 | 三菱マテリアル株式会社 | Discharge tube and manufacturing method thereof |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1951601C3 (en) * | 1969-10-13 | 1975-07-31 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Gas discharge surge arrester |
DE2207009C3 (en) * | 1972-02-15 | 1979-03-22 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Surge arresters |
US3755715A (en) * | 1972-10-11 | 1973-08-28 | Reliable Electric Co | Line protector having arrester and fail-safe circuit bypassing the arrester |
DE2705885A1 (en) * | 1977-02-11 | 1978-08-17 | Siemens Ag | Gas discharge overvoltage arrester - with electrode coating of high thermal electron emissivity contg. aluminium and alkali or alkaline earth metal |
DE2735865C3 (en) * | 1977-08-09 | 1980-10-16 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Gas discharge surge arrester |
DE2828650C3 (en) * | 1978-06-29 | 1982-03-25 | Siemens AG, 1000 Berlin und 8000 München | Surge arresters |
DE2834088A1 (en) * | 1978-08-03 | 1980-02-14 | Siemens Ag | GAS DISCHARGE PIPES, IN PARTICULAR SURGE PROTECTORS |
DE2914836C2 (en) * | 1979-04-11 | 1983-11-17 | Siemens AG, 1000 Berlin und 8000 München | Manufacturing process for the electrode activation compound in a gas discharge tube |
JPS6038491B2 (en) * | 1980-07-11 | 1985-09-02 | 本田技研工業株式会社 | snowblower |
DE3335602A1 (en) * | 1983-09-30 | 1985-04-18 | Siemens AG, 1000 Berlin und 8000 München | GAS DISCHARGE ARRESTER AND MANUFACTURING METHOD |
GB2153138A (en) * | 1984-01-19 | 1985-08-14 | Beswick Kenneth E Ltd | Surge voltage arrestors |
GB2181887A (en) * | 1985-10-02 | 1987-04-29 | M O Valve Co Ltd | Electrode of surge arrester |
DE3642818A1 (en) * | 1986-12-15 | 1988-06-16 | Siemens Ag | GAS DISCHARGE OVERVOLTAGE ARRESTER WITH FLASH |
GB8826307D0 (en) * | 1988-11-10 | 1988-12-14 | Cooper Uk Ltd | Surge arresters |
FI84960C (en) * | 1990-07-18 | 1992-02-10 | Planar Int Oy | LYSAEMNESSKIKT FOER ELEKTROLUMINESCENSDISPLAY. |
JP2860335B2 (en) * | 1990-09-25 | 1999-02-24 | 矢崎総業株式会社 | Discharge tube |
-
1993
- 1993-05-26 DE DE4318994A patent/DE4318994C2/en not_active Expired - Fee Related
-
1994
- 1994-05-18 EP EP94915504A patent/EP0700589B1/en not_active Expired - Lifetime
- 1994-05-18 DE DE59406511T patent/DE59406511D1/en not_active Expired - Lifetime
- 1994-05-18 JP JP7500102A patent/JP2762399B2/en not_active Expired - Lifetime
- 1994-05-18 CN CN94192223A patent/CN1039612C/en not_active Expired - Fee Related
- 1994-05-18 WO PCT/DE1994/000589 patent/WO1994028607A1/en active IP Right Grant
- 1994-05-18 US US08/569,180 patent/US5671114A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9428607A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0700589B1 (en) | 1998-07-22 |
WO1994028607A1 (en) | 1994-12-08 |
US5671114A (en) | 1997-09-23 |
JPH08506449A (en) | 1996-07-09 |
DE4318994C2 (en) | 1995-04-20 |
JP2762399B2 (en) | 1998-06-04 |
DE4318994A1 (en) | 1994-12-08 |
CN1039612C (en) | 1998-08-26 |
CN1124540A (en) | 1996-06-12 |
DE59406511D1 (en) | 1998-08-27 |
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