DE114780C - - Google Patents
Info
- Publication number
- DE114780C DE114780C DENDAT114780D DE114780DA DE114780C DE 114780 C DE114780 C DE 114780C DE NDAT114780 D DENDAT114780 D DE NDAT114780D DE 114780D A DE114780D A DE 114780DA DE 114780 C DE114780 C DE 114780C
- Authority
- DE
- Germany
- Prior art keywords
- resistance
- spark
- electrodes
- resistors
- carbon
- 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.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000000171 quenching Effects 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective Effects 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
- H01T1/00—Details of spark gaps
- H01T1/02—Means for extinguishing arc
- H01T1/04—Means for extinguishing arc using magnetic blow-out
Landscapes
- Thermistors And Varistors (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei den in der Elektrotechnischen Zeitschrift 1896, S. 512, Fig. 32 und 33, beschriebenen Blitzableitern für elektrische Leitungen mit magnetischer Funkenlöschung ist der Blasmagnet m (Fig. 1) parallel zu einer zweiten Funkenstrecke oder zu einem inductionsfreien Widerstände w geschaltet, so dafs im Falle, dafs über die Funkenstrecke α eine Entladung überging, nur der Maschinenstrom, nicht der Blitzstrom durch die Elektfomagnetspule fliefst.In the case of the lightning rods for electrical lines with magnetic spark quenching described in the Elektrotechnische Zeitschrift 1896, p. 512, Fig. 32 and 33, the blow magnet m (Fig. 1) is connected in parallel to a second spark gap or to an induction-free resistor w , so that in the event that a discharge passed over the spark gap α , only the machine current, not the lightning current, flows through the electromagnetic coil.
Die praktische Ausführung derartiger Schutzapparate bot bisher aber Schwierigkeiten. Der Widerstand n> hat bei den bekannt gewordenen Apparaten niemals genügt, um ein für den ganzen Apparat gefährliches Anwachsen der Stromstärke nach stattgehabter Entladung zu verhindern. Dieser Uebelstand hatte seinen Grund darin, dafs einerseits die Elektroden der Funkenstrecke α bis jetzt aus Kohle oder sogar aus Metall hergestellt wurden, und dafs man andererseits nicht in der Läge war, den durch m und w gebildeten Widerstand genügend grofs zu machen, dafs er das schädliche Anwachsen der Stromstärke hätte verhindern können.The practical implementation of such protective devices has presented difficulties so far. In the apparatuses which have become known, the resistance n> has never been sufficient to prevent an increase in the strength of the current which is dangerous for the entire apparatus after a discharge has taken place. This inconvenience was due to the fact that, on the one hand, the electrodes of the spark gap α had up to now been made of carbon or even of metal, and, on the other hand, that one was not able to make the resistance formed by m and w sufficiently large that it would do so could have prevented harmful increases in current strength.
Der Grundgedanke der vorliegenden Erfindung besteht darin, dafs man dem gemeinsam durch m und n> gebildeten Widerstand noch einen Vorschaltwiderstand giebt, wie es bereits für Blitzableiter ohne Funkenlöschung aus der amerikanischen Patentschrift 509783 bekannt ist. Derselbe kann ebensowohl zwischen die zu schützende Leitung und die Widerstände in und tv, wie auch zwischen die Widerstände m und w und die Erde gelegt werden, wobei natürlich auch eine Theilung dieses Vorschaltwiderstandes nicht ausgeschlossen ist.The basic idea of the present invention is that the resistor formed jointly by m and n> is also given a series resistor, as is already known from American patent 509783 for lightning arresters without spark extinction. The same can be placed between the line to be protected and the resistors in and tv, as well as between the resistors m and w and the earth, whereby, of course, a division of this series resistor is not excluded.
Bei der vorliegenden Ausführungsform ist dieser Vorschaltwiderstand in die Elektroden selbst verlegt, indem man dieselben aus einem Stoffe mit hohem specifischen Widerstände herstellt und in entsprechender Länge ausführt. Der Widerstand w kann auch durch eine Elektrode von entsprechendem Widerstände ersetzt werden, welche mit einer Stromabnehmermuffe für die Windungen des Blasmagneten versehen ist.In the present embodiment, this series resistor is installed in the electrodes themselves by producing them from a material with a high specific resistance and making them of an appropriate length. The resistor w can also be replaced by an electrode of corresponding resistors, which is provided with a current collector sleeve for the windings of the blow magnet.
Sollte bei höheren Spannungen der Widerstand n>, selbst wenn man die Elektroden aus schlechtleitenden Kohlenstiften bildet, noch zu klein sein, so kann man auch diesen Widerstand w in bekannter Weise durch eine zweite Funkenstrecke ersetzen, deren Elektroden sowohl aus schlechtleitenden Elektroden, als auch, wie bisher aus Kohlen- oder Metallelektroden bestehen können (Fig. 4).If the resistance n> is still too small at higher voltages, even if the electrodes are formed from poorly conducting carbon pins, then this resistance w can also be replaced in a known manner by a second spark gap, the electrodes of which are made up of poorly conducting electrodes as well as can consist of carbon or metal electrodes as before (Fig. 4).
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE114780C true DE114780C (en) |
Family
ID=384254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT114780D Active DE114780C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE114780C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1042711B (en) * | 1953-11-07 | 1958-11-06 | Siemens Ag | Permanent blow magnet assembly |
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0
- DE DENDAT114780D patent/DE114780C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1042711B (en) * | 1953-11-07 | 1958-11-06 | Siemens Ag | Permanent blow magnet assembly |
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