EP1119890A1 - Funkenstreckenanordnung - Google Patents
FunkenstreckenanordnungInfo
- Publication number
- EP1119890A1 EP1119890A1 EP99948801A EP99948801A EP1119890A1 EP 1119890 A1 EP1119890 A1 EP 1119890A1 EP 99948801 A EP99948801 A EP 99948801A EP 99948801 A EP99948801 A EP 99948801A EP 1119890 A1 EP1119890 A1 EP 1119890A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spark gap
- arrangement according
- gap arrangement
- intermediate chamber
- chamber
- 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
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/04—Housings
-
- 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
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
Definitions
- the invention relates to a spark gap arrangement for use in the power supply, in particular in low-voltage networks with an arc chamber, within which arcing takes place between two electrodes (preamble of claim 1).
- the object or problem of the invention is to design a spark gap arrangement according to the preamble of claim 1 so that the gases emerging from it do not bring about the disadvantages explained in relation to the prior art, while on the other hand the disadvantages of the known, completely encapsulated and externally completed constructions of spark gap arrangements (for example according to DE 195 06 057 AI) are avoided.
- an intermediate chamber (storage chamber) is connected downstream of the arc chamber, the volume of which is considerably larger than . the volume of the arc chamber, a pressure-resistant, preferably metallic flow channel serving as the connection between the arc chamber and the intermediate chamber.
- the intermediate chamber receives the hot gases and decomposition products produced in the arc chamber.
- the pressure wave is broken down and cooled. This cooled and resting gas can then either remain in the storage chamber or be released into the environment.
- a spark gap arrangement according to claim 1 with at least one outlet opening for the hot, pressurized gases formed by the arcing, and is characterized in that the intermediate chamber has one or more outlet openings or channels for the gases.
- Claim 3 specifies a preferred ratio of the volume size of the arc chamber to the volume size of the intermediate chamber.
- the subclaims 4 to 7 contain options for increasing the heat dissipation and thus the cooling effect of the intermediate chamber, wherein in the case of the arrangement of plastics which emit extinguishing gas, there is also evaporative cooling. At the same time, the electrical conductivity of the escaping gases is reduced due to the cooling. This is also an advantage (see the state of the art above).
- the invention also makes it possible, through targeted coordination of individual measures, pressure and mass throughput To optimize the temperature of the escaping gases or to adapt them to technical application requirements.
- the possible influencing of the mass flow rate * is of importance, which is determined or determined by the ratio of the inflow cross section of the gases into the intermediate chamber (and the gas quantity flowing thereby) to the outflow cross section from the intermediate chamber (and the gas quantity thus flowing out).
- the amplitude and steepness of the pressure wave of the escaping gases can also be influenced. If, for example, the outflow cross section of the gases from the intermediate chamber is very much smaller than the inflow cross section of the gases into the intermediate chamber, the gases remain in the intermediate chamber for a longer time.
- the volume of the intermediate chamber must then be dimensioned such that the entire amount of gas that explodes in the arc chamber can be absorbed by it (see claim 12).
- it is essential that the dimensioning of the inflow cross section into the intermediate chamber is so small that it "clogs" the nozzle to a certain extent and the gas flow practically comes to a standstill. This reduces the cooling effect and thus also the energy conversion in the arc, so that the pressure development remains relatively low. This makes it possible to dispense with the outlet openings, at least in the case of smaller lightning currents.
- Fig. 4 - 6 Execution of the invention with a "pressure or” overpressure device ".
- the above representations each in cross-section and without an accurate representation of the arc chamber and the intermediate chamber.
- Fig. 7 one intended for use in practice
- Embodiment also in cross section.
- the spark gap arrangement 1 consists of a one-piece housing 2 which has an arc chamber 3, a through-flow channel 4, an intermediate chamber 5 and an outlet opening or an outlet channel 6. Parts that are not necessary for understanding the invention, such as the electrodes, are not shown in the drawing.
- the flow-through channel 4 connects the arc chamber 3 to the intermediate chamber 5, while the outlet opening or the outlet channel (a plurality of outlet channels or openings can also be provided) connects the intermediate chamber 5 to the external environment of the spark gap arrangement 1.
- the pressure Pl and the temperature T1 in the arcing chamber 3 are correspondingly greater than the pressure P2 and the temperature T2 in the intermediate chamber 5.
- the substantially larger volume of the intermediate chamber 5 with the outlet channel provided by the invention is not correctly represented in relation to the volume of the arc chamber 3 with the flow channel 4.
- the intermediate chamber 5 would have to be drawn correspondingly larger or "more voluminous".
- the preferred ratio of the volumes of 3 and 4 to the volumes of 5 and 6 is approximately 1:10.
- the through-flow channel 4 can be designed in the form of a nozzle. Furthermore, by choosing its outlet cross section 4 1 (D1) into the intermediate chamber and the inlet cross section 6 1 (D2) from the intermediate chamber into the
- Outlet channel 6 the mass flow rate * m can be influenced.
- a spark gap arrangement according to the invention can either be in one piece (see the exemplary embodiments) or in two pieces.
- the first piece consists of the arc chamber 3 with a flow channel 4 and the second piece of the intermediate chamber 5 with an outlet channel 6. Both are firmly connected to one another, e.g. by screwing their housings together.
- the outlet channel 6 or corresponding outlet channels can be provided with further means for reducing the pressure and temperature of the gases. These can be, for example (not shown in the drawing), nozzle-shaped designs and / or further intermediate chambers.
- FIG. 2 A further two-part embodiment is shown in FIG. 2 with a one-piece housing 7 and two inserts 8 and 9, one of which has the arc chamber 3 and the other has the throughflow channel 4. In this case, the outlet opening 6 is led laterally out of the housing 7.
- the two-part design according to FIG. 2 has the advantage that the two individual parts can be replaced in accordance with their wear.
- Fig. 3 also shows that the flow channel 4 is extended according to number 4 "into the intermediate chamber 5 and ends there in side openings 11 which pass the hot gases to the left and right and up and down in the intermediate chamber 5 until they pass through a transverse bore 12 into the outlet channel 6.
- This guiding of the gases over longer distances (so-called “detours") further contributes to the cooling and pressure relief of the gases.
- Be controlled type of pressure relief valves. 4 shows a ball 13 which is pressed upwards under the pressure of a spring 14. According to number 15, the gases in the intermediate chamber 5 press against the ball from above. From a certain pressure of the gases, the ball deflects downward against the action of the compression spring 14, so that the gases can flow out according to number 16.
- the spring force 14 is set such that the ball 13 only releases the path of the gases from 15 to 16 at a maximum load, that is to say only above a critical limit, and the blowing can thus take place. The blow-out process would therefore only take place in rare cases, for example an extremely large lightning or short-circuit current.
- the blow-out pressure such as when opening an overpressure valve also as an indicator of a pressure load, e.g. be used for a defect display or defect report; so that the operator of the system can initiate specified measures in this case, or at least check the operator and the associated parts.
- Such displays are shown in the embodiments of FIGS. 5 and 6.
- the pressure generation by the arc is to be used to register or count a response of the spark gap.
- a membrane 17 is provided, which is bent downwards under the pressure 15 of the gases in the intermediate chamber 5 when a limit value is reached (see dashed line 17 '), thereby closing a switch 18 and thus causing a corresponding message. At the same time, this can be a status message from the collector. If the limit load is exceeded, the arrester can also be switched off. It is also possible to connect a central evaluation device.
- pressure generation by the arc is to be used in order to achieve both pressure relief and signaling at a desired pressure value.
- a conical sealing part 19 corresponding to the ball 13 is provided, which, under the action of springs 20, initially blocks the gas flow path 15/16 until the pressure according to number 15 becomes so great that the cone 19 decreases against the action of the springs 20 moved below and the gas can flow out.
- a circuit board 21 comes to two contacts 22 Circuit of a signaling or signaling system closed to carry out such a message.
- the throughflow channel 4 has the same diameter as the arc chamber 3 for reasons of design simplification.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19845889A DE19845889B4 (de) | 1998-10-06 | 1998-10-06 | Funkenstreckenanordnung |
DE19845889 | 1998-10-06 | ||
PCT/EP1999/006962 WO2000021170A1 (de) | 1998-10-06 | 1999-09-21 | Funkenstreckenanordnung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1119890A1 true EP1119890A1 (de) | 2001-08-01 |
EP1119890B1 EP1119890B1 (de) | 2005-12-07 |
Family
ID=7883506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99948801A Expired - Lifetime EP1119890B1 (de) | 1998-10-06 | 1999-09-21 | Funkenstreckenanordnung |
Country Status (6)
Country | Link |
---|---|
US (1) | US6788518B1 (de) |
EP (1) | EP1119890B1 (de) |
AT (1) | ATE312422T1 (de) |
DE (2) | DE19845889B4 (de) |
WO (1) | WO2000021170A1 (de) |
ZA (1) | ZA200103426B (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10107357C2 (de) * | 2001-02-07 | 2003-03-27 | Siemens Ag | Signaleinrichtung zur Anzeige des Ansprechens eines Überspannungsableiters |
ATE391355T1 (de) * | 2001-08-21 | 2008-04-15 | Dehn & Soehne | Gekapselter, netzfolgestrom begrenzender überspannungsableiter auf funkenstreckenbasis |
DE10164025B4 (de) * | 2001-08-21 | 2005-08-25 | Dehn + Söhne Gmbh + Co. Kg | Gekapselter, Netzfolgestrom begrenzender Überspannungsableiter auf Funkenstreckenbasis |
DE102006048977B4 (de) * | 2005-05-30 | 2017-02-23 | Dehn + Söhne Gmbh + Co. Kg | Gekapselte, druckfest ausgeführte, nicht hermetisch dichte, rotationssymmetrische Hochleistungsfunkenstrecke |
DE102005024658B4 (de) * | 2005-05-30 | 2007-02-15 | Dehn + Söhne Gmbh + Co. Kg | Gekapselte, druckfest ausgeführte, nicht hermetisch dichte, rotationssymmetrische Hochleistungsfunkenstrecke |
US8664812B2 (en) * | 2006-03-17 | 2014-03-04 | Inpro/Seal Llc | Current diverter ring |
US8604653B2 (en) | 2005-06-25 | 2013-12-10 | Inpro/Seal, LLC | Current diverter ring |
DE102006044992B4 (de) * | 2006-09-23 | 2016-07-07 | J. Pröpster GmbH | Funkenstrecke und mehrpoliges Überspannungsschutzelement |
DE502006008106D1 (de) * | 2006-10-17 | 2010-11-25 | Dehn & Soehne | Gekapselte, druckfest ausgeführte, nicht hermetisch dichte, rotationssymmetrische hochleistungsfunkenstrecke |
DE102007015931A1 (de) * | 2007-01-04 | 2008-07-10 | Dehn + Söhne Gmbh + Co. Kg | Gekapselte, druckfest ausgeführte, nicht hermetisch dichte, rotationssymmetrische Hochleistungsfunkenstrecke |
DE102007015932A1 (de) * | 2007-01-04 | 2008-07-10 | Dehn + Söhne Gmbh + Co. Kg | Gekapselte, druckfest ausgeführte, nicht hermetisch dichte Hochleistungsfunkenstrecke |
DE102007056183B4 (de) * | 2007-11-21 | 2020-01-30 | Tdk Electronics Ag | Überspannungsableiter mit thermischem Überlastschutz, Verwendung eines Überspannungsableiters und Verfahren zum Schutz eines Überspannungsableiters |
DE102009048045B4 (de) * | 2009-10-02 | 2011-06-01 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzelement |
DE102011102869B4 (de) * | 2010-08-18 | 2020-01-23 | Dehn Se + Co Kg | Funkenstreckenanordnung mit zwei in einem Gehäusekörper auf Abstand gehaltenen, gegenüberliegenden, bevorzugt flächigen Elektroden |
TWI600257B (zh) | 2012-06-18 | 2017-09-21 | 英普羅密封有限責任公司 | 電流分流器環 |
US9831739B2 (en) | 2012-06-18 | 2017-11-28 | Inpro/Seal Llc | Explosion-proof current diverting device |
DE102014104576B4 (de) * | 2014-04-01 | 2016-02-11 | Phoenix Contact Gmbh & Co. Kg | Überspannungsableiter |
DE102014209261A1 (de) * | 2014-05-15 | 2015-11-19 | Phoenix Contact Gmbh & Co. Kg | Funkenstreckenanordnung mit verbesserter Kühlung |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE897444C (de) * | 1939-03-01 | 1953-11-23 | Aeg | UEberspannungsableiter mit einer Ausblase-Roehrenfunkenstrecke |
GB1405486A (en) * | 1972-09-22 | 1975-09-10 | Atomic Energy Authority Uk | Low inductance arc discharge switches |
JPS5142245B2 (de) * | 1974-07-08 | 1976-11-15 | ||
DE19506057B4 (de) * | 1995-02-22 | 2004-07-22 | Dehn + Söhne GmbH + Co KG | Löschfunkenstreckenanordnung |
DE19619334A1 (de) * | 1996-05-14 | 1997-11-20 | Dehn & Soehne | Verfahren zur Löschung des Lichtbogens des Netzfolgestromes in einer Funkenstrecke sowie Funkenstreckenanordnung zur Durchführung des Verfahrens |
AT405112B (de) * | 1997-02-12 | 1999-05-25 | Felten & Guilleaume Ag Oester | Überspannungsableiteinrichtung |
DE19717802B4 (de) * | 1997-04-26 | 2009-09-17 | Dehn + Söhne GmbH + Co KG | Funkenstrecke |
-
1998
- 1998-10-06 DE DE19845889A patent/DE19845889B4/de not_active Expired - Fee Related
-
1999
- 1999-09-21 DE DE59912899T patent/DE59912899D1/de not_active Expired - Lifetime
- 1999-09-21 US US09/806,990 patent/US6788518B1/en not_active Expired - Fee Related
- 1999-09-21 AT AT99948801T patent/ATE312422T1/de not_active IP Right Cessation
- 1999-09-21 EP EP99948801A patent/EP1119890B1/de not_active Expired - Lifetime
- 1999-09-21 WO PCT/EP1999/006962 patent/WO2000021170A1/de active IP Right Grant
-
2001
- 2001-04-26 ZA ZA200103426A patent/ZA200103426B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO0021170A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6788518B1 (en) | 2004-09-07 |
WO2000021170A1 (de) | 2000-04-13 |
ATE312422T1 (de) | 2005-12-15 |
DE59912899D1 (de) | 2006-01-12 |
EP1119890B1 (de) | 2005-12-07 |
DE19845889B4 (de) | 2007-03-01 |
DE19845889A1 (de) | 2000-04-13 |
ZA200103426B (en) | 2001-11-08 |
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