DE933818C - Loeschteile for electrical switches with arc extinguishing by gases and fumes - Google Patents

Loeschteile for electrical switches with arc extinguishing by gases and fumes

Info

Publication number
DE933818C
DE933818C DEE7151A DEE0007151A DE933818C DE 933818 C DE933818 C DE 933818C DE E7151 A DEE7151 A DE E7151A DE E0007151 A DEE0007151 A DE E0007151A DE 933818 C DE933818 C DE 933818C
Authority
DE
Germany
Prior art keywords
gases
extinguishing
electrical switches
fumes
loeschteile
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.)
Expired
Application number
DEE7151A
Other languages
German (de)
Inventor
Bertil Sixten Groth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELEK SKA AEG AB
AEG Elektriska AB
Original Assignee
ELEK SKA AEG AB
AEG Elektriska AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ELEK SKA AEG AB, AEG Elektriska AB filed Critical ELEK SKA AEG AB
Priority to DEE7151A priority Critical patent/DE933818C/en
Application granted granted Critical
Publication of DE933818C publication Critical patent/DE933818C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Description

Löschteile für elektrische Schalter mit Lichtbogenlöschung durch Gase und Dämpfe Die Erfindung bezieht sich auf Löschteile für elektrische Schalter, bei welchen für die Löschung des Schaltlichtbogens dienende Gase oder Dämpfe durch die Wärmewirkung des Lichtbogens auf das Material, woraus die Löschteile bestehen, entwickelt werden.Extinguishing parts for electrical switches with arc extinguishing by gases and fumes The invention relates to extinguishing parts for electrical switches, at which gases or vapors used to extinguish the switching arc through the Thermal effect of the arc on the material from which the extinguishing parts are made will.

Nach der Erfindung enthalten die die Schaltkammer des Schalters umgebenden, gasabgebenden Oberflächen der Löschteile Zelluloseester niedrigerer Fettsäuren und/oder Zellulosealkyläther.According to the invention, the surrounding the switching chamber of the switch, gas-emitting surfaces of the extinguishing parts cellulose esters of lower fatty acids and / or Cellulose alkyl ether.

Es hat sich gezeigt, daß solche Zelluloseester niedrigerer Fettsäuren, beispielsweise Zelluloseazetat, -propionat und -butyrat oder Mischester derselben wie auch gewisse Zellulosealkyläther, in erster Hand der Ethyläther, sich als Bestandteil des Materials, woraus die Löchteile hergestellt werden, gut eignen.It has been shown that such cellulose esters of lower fatty acids, for example cellulose acetate, cellulose propionate and cellulose butyrate or mixed esters thereof as well as certain cellulose alkyl ethers, primarily ethyl ether, are found to be a constituent the material from which the hole parts are made are well suited.

Die erwähnten Zellulosederivate werden dabei zweckmäßig in an sich bekannter Weise mit einer speziell gasabgebenden Verbindung, beispielsweise Melamin, gemischt, worauf die Mischung durch Pressen usw. zu Halbfertigungsstücken geformt wird, welche dann zu Stromunterhrecherkammerteilen mechanisch verarbeitet werden.The cellulose derivatives mentioned are useful in themselves known way with a special gas-releasing compound, for example melamine, mixed, whereupon the mixture is formed into semi-finished pieces by pressing, etc. which are then mechanically processed into current under control chamber parts.

Vorgenommene elektrische Prüfungen haben gezeigt, daß die erwähnten Zelluloseazetate eine effektive Lichtbogenlöschung geben und daß sie ohne irgendeine störende Rußbildung, die das Unterbrechungsvermögen herabsetzt, von dem Lichtbogen zersetzt werden.Electrical tests carried out have shown that the aforementioned Cellulose acetates give an effective arc quenching and that they do without any annoying soot formation that Reduces interruption capacity, decomposed by the arc.

Claims (2)

PATENTANSPRÜCHE: i. Löschteile für elektrische Schalter mit Lichtbogenlöschung mittels Gase und Dämpfe, die aus gasabgebenden Oberflächen der Löschteile von dem Schaltlichtbogen selbst erzeugt werden, dadurch gekennzeichnet, daß die gasabgebenden Oberflächen Zelluloseester der niedrigeren Fettsäuren und/oder Zellulosealkyläther als wesentlichen Bestandteil enthalten. PATENT CLAIMS: i. Extinguishing parts for electrical switches with arc extinguishing by means of gases and vapors which are generated from the gas-emitting surfaces of the extinguishing parts by the switching arc itself, characterized in that the gas-emitting surfaces contain cellulose esters of the lower fatty acids and / or cellulose alkyl ethers as an essential component. 2. Löschteile nach Anspruch r, dadurch gekennzeichnet, daß sie auch wenigstens eine speziell gasabgebende Verbindung, beispielsweise Melamin, enthalten. Angezogene Druckschriften: USA.-Patentschriften Nr. 907 074, 833 386, 737 46I.2. extinguishing parts according to claim r, characterized in that they also contain at least one special gas-releasing compound, for example melamine. Cited references: U.S. Patent Nos. 907 074, 833 386, 737 46I.
DEE7151A 1953-05-01 1953-05-01 Loeschteile for electrical switches with arc extinguishing by gases and fumes Expired DE933818C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE7151A DE933818C (en) 1953-05-01 1953-05-01 Loeschteile for electrical switches with arc extinguishing by gases and fumes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE7151A DE933818C (en) 1953-05-01 1953-05-01 Loeschteile for electrical switches with arc extinguishing by gases and fumes

Publications (1)

Publication Number Publication Date
DE933818C true DE933818C (en) 1955-10-06

Family

ID=7067092

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE7151A Expired DE933818C (en) 1953-05-01 1953-05-01 Loeschteile for electrical switches with arc extinguishing by gases and fumes

Country Status (1)

Country Link
DE (1) DE933818C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582586A (en) * 1966-03-21 1971-06-01 Rostone Corp Arc-interrupting materials and apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US737461A (en) * 1903-05-11 1903-08-25 Charles Marshall Palmer Wood-distilling apparatus.
US833386A (en) * 1906-01-12 1906-10-16 Eugene F Helm Device for connecting rods.
US907074A (en) * 1908-01-15 1908-12-15 Karl Maybach Friction coupling and brake.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US737461A (en) * 1903-05-11 1903-08-25 Charles Marshall Palmer Wood-distilling apparatus.
US833386A (en) * 1906-01-12 1906-10-16 Eugene F Helm Device for connecting rods.
US907074A (en) * 1908-01-15 1908-12-15 Karl Maybach Friction coupling and brake.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582586A (en) * 1966-03-21 1971-06-01 Rostone Corp Arc-interrupting materials and apparatus

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