CH109564A - Electric quick switch. - Google Patents

Electric quick switch.

Info

Publication number
CH109564A
CH109564A CH109564DA CH109564A CH 109564 A CH109564 A CH 109564A CH 109564D A CH109564D A CH 109564DA CH 109564 A CH109564 A CH 109564A
Authority
CH
Switzerland
Prior art keywords
current
switch according
carrying
switch
organs
Prior art date
Application number
Other languages
German (de)
Inventor
Oerlikon Maschinenfabrik
Original Assignee
Oerlikon Maschf
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 Oerlikon Maschf filed Critical Oerlikon Maschf
Publication of CH109564A publication Critical patent/CH109564A/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
    • H01H77/107Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by the blow-off force generating means, e.g. current loops

Description

  

  Elektrischer Schnellschalter.    Um im Falle eines sehr steil anwachsen  den Stromes, zum Beispiel bei Kurzschluss,  die Unterbrechung des Stromes innert eines  ausserordentlichen kleinen Zeitabschnittes zu  erzielen, ist es von ausschlaggebender Bedeu  tung, dass die     Öffnungsbewegung    des Schal  ters direkt durch den Strom selbst bewirkt  wird, das heisst also ohne irgendwelche Zwi  schenorgane, deren Wirkung vorerst durch  den Strom ausgelöst werden muss.

   Ein sol  ches Organ wäre zum Beispiel eine gespannt  gehaltene Feder oder ein Gewicht, deren Kraft  auslösung die     Offnungsbewegung    bewirkt, Bei  einer derartigen Anordnung kann eben die       Öffnungsbewegung    erst beginnen, nachdem  die Funktion der die Entspannung der Feder  oder das Herunterfallen des Gewichtes ver  hindernden Organe durch die Wirkung des  ansteigenden Stromes aufgehoben worden ist,  was natürlich stets auch eine Bewegung dieser  Organe erfordert.

   Es ist daher klar, dass dieser  Vorgang, so kurz er noch sein mag, doch       immerhin    auch eine gewisse Zeit erfordert;  die, wenn man bedenkt, dass es sich darum  handelt, Ausschaltzeiten von nur einigen     tau-          sendstel    Sekunden zu erreichen, damit der    Schnellschalter     überhaupt    seinen Zweck er  füllt, die Schnelligkeit der Wirkung beein  trächtigen muss.  



  Bei denn Schnellschalter nach vorliegender       Erfindung    findet die     Offnungsbewegung    des  Schalters direkt durch die dynamische Wir  kung des Stromes selbst statt.  



  Die Wirkungsweise geht aus     beiliegenden     Figuren hervor, welche verschiedene Aus  führungsbeispiele des     Virfindungsgegenstandes     schematisch darstellen: In     Fig.    1 ist a ein  feststehendes     Stromführungsstück,    b     ein    im  Punkt f beweglicher Schalthebel, der durch  einen Haltemagnet     g    in seiner Kontaktstellung  gehalten wird. c ist die Kontakt- beziehungs  weise Unterbrechungsstelle.  



  Der Strom fliesst in<I>d zu</I> und über     a,   <I>c,</I>  b in e wieder ab. Da die Stromrichtung im  festen und im beweglichen Teil entgegenge  setzt ist, findet infolge der dynamischen Wir  kung des Stromes eine Abstossung zwischen  beiden Teilen statt. Durch einen fremderregten  Magneten     g,    welcher durch den zu unterbre  chenden Hauptstrom geschwächt werden kann,  wird der bewegliche Teil b bis zu einem voraus  bestimmten     Strombetrag    in der Kontaktstel-      Jung gehalten. Steigt jedoch der Strom plötz  lich an, so wird durch die dynamische Wirkung  die Haltekraft des Magnetes     g    überwunden  und der bewegliche Teil b abgestossen, wo  durch der Stromkreis in c unterbrochen wird.  



  Die erwähnte dynamische Wirkung kann  noch auf verschiedene Arten ausgenützt wer  den, so zum Beispiel dadurch, dass beide Teile       a    und b beweglich gemacht werden und allen  falls jedem Teil gegenüber ein unbeweglicher  Teil     li    angeordnet wird     (Fig.    2), wobei natür  lich die Stromrichtung zwischen jedem festen  und beweglichen Teil entgegengesetzt ist;  oder durch Anordnung mehrerer     Windungen     anstatt gerader stromführender Teile     (Fig.    3).



  Electric quick switch. In order to achieve the interruption of the current within an extraordinarily small period of time in the event of a very steep current increase, for example in the event of a short circuit, it is of crucial importance that the opening movement of the switch is caused directly by the current itself, that is in other words, without any intermediary organs whose effect must first be triggered by the current.

   Such an organ would be, for example, a spring held under tension or a weight, the force of which triggers the opening movement. With such an arrangement, the opening movement can only begin after the function of the organs preventing the relaxation of the spring or the dropping of the weight from being carried out the effect of the rising current has been canceled, which of course always requires a movement of these organs.

   It is therefore clear that this process, as short as it may be, nevertheless also requires a certain amount of time; which, if you consider that it is a question of achieving switch-off times of only a few thousandths of a second for the quick switch to actually serve its purpose, the speed of action must be impaired.



  In the case of the quick switch according to the present invention, the opening movement of the switch takes place directly through the dynamic action of the current itself.



  The mode of operation can be seen from the accompanying figures, which schematically illustrate various exemplary embodiments of the invention: In Fig. 1, a is a fixed current-carrying piece, b is a switching lever movable at point f, which is held in its contact position by a holding magnet g. c is the point of contact or interruption.



  The current flows in <I> d to </I> and out again via a, <I> c, </I> b in e. Since the direction of the current is opposite in the fixed and moving parts, the dynamic effect of the current causes a repulsion between the two parts. By means of an externally excited magnet g, which can be weakened by the main current to be interrupted, the movable part b is held in the contact point up to a predetermined amount of current. However, if the current increases suddenly, the dynamic effect overcomes the holding force of the magnet g and repels the moving part b, where the circuit in c is interrupted.



  The mentioned dynamic effect can be used in different ways, for example by making both parts a and b movable and all if an immovable part li is arranged opposite each part (Fig. 2), with the flow direction of course is opposite between each fixed and movable part; or by arranging several turns instead of straight current-carrying parts (Fig. 3).

 

Claims (1)

PATENTANSPRUCH: Elektrischer Schnellschalter zur Unter brechung eines Stromkreises innert einer mög lichst kurzen Zeit, dadurch gekennzeichnet, dass die Öffnungsbewegung des Schalters un mittelbar durch die dynamische Wirkung des in den Kontaktorganen des Schalters fliessen den Stromes selbst hervorgebracht wird. UNTERANSPRÜCHE: 1. Schalter nach Patentanspruch', dadurch ge kennzeichnet, dass die stromführenden Kon taktorgane gerade sind. 2. Schalter nach Patentanspruch, dadurch ge kennzeichnet, dass die stromführenden Kon taktorgane eine von der geraden abwei chende Form besitzen. 3. Schalter nach Patentanspruch, dadurch ge kennzeichnet, dass von zwei stromführenden Kontaktorganen nur das eine beweglich ist. 4. Schalter nach Patentanspruch, gekennzeich net durch zwei bewegliche stromführende Kontaktorgane. 5. PATENT CLAIM: Electrical high-speed switch for interrupting a circuit within the shortest possible time, characterized in that the opening movement of the switch is brought about directly by the dynamic effect of the current flowing in the contact elements of the switch itself. SUB-CLAIMS: 1. Switch according to claim ', characterized in that the current-carrying contact organs are straight. 2. Switch according to claim, characterized in that the current-carrying con tact organs have a shape deviating from the straight. 3. Switch according to claim, characterized in that only one of two current-carrying contact organs is movable. 4. Switch according to claim, characterized net by two movable current-carrying contact elements. 5. Schalter nach Patentanspruch und Unter anspruch 4, dadurch gekennzeichnet, dass beiden beweglichen und stromführenden Teilen gegenüber je ein fester, ebenfalls stromführender Teil angeordnet ist. 6. Schalter nach Patentanspruch und Unter anspruch 2, dadurch gekennzeichnet, dass die stromführenden Teile die Form von Windungen haben. 7. Schalter nach Patentanspruch, dadurch ge kennzeichnet, dass zum geschlossenen Hal ten der Kontaktorgane ein fremderregter Haltemagnet verwendet ist, welcher durch den zu unterbrechenden Hauptstrom ge schwächt wird. Switch according to claim and sub-claim 4, characterized in that a fixed, likewise current-carrying part is arranged opposite each of the two movable and current-carrying parts. 6. Switch according to claim and sub-claim 2, characterized in that the current-carrying parts are in the form of turns. 7. Switch according to claim, characterized in that an externally excited holding magnet is used for the closed Hal th of the contact organs, which is weakened by the main current to be interrupted ge.
CH109564D 1924-04-24 1924-04-24 Electric quick switch. CH109564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH109564T 1924-04-24

Publications (1)

Publication Number Publication Date
CH109564A true CH109564A (en) 1925-04-01

Family

ID=4368568

Family Applications (1)

Application Number Title Priority Date Filing Date
CH109564D CH109564A (en) 1924-04-24 1924-04-24 Electric quick switch.

Country Status (1)

Country Link
CH (1) CH109564A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431444A (en) * 1942-12-05 1947-11-25 Bendix Aviat Corp Polar relay
DE1077767B (en) * 1958-07-23 1960-03-17 Felten & Guilleaume Carlswerk Double-sided magnetic quick release
DE1079176B (en) * 1958-07-30 1960-04-07 Licentia Gmbh For preferably higher currents suitable self-switch with electromagnetic and / or thermal releases
DE1107330B (en) * 1958-08-13 1961-05-25 Calor Emag Elektrizitaets Ag Electrical switch for the automatic interruption of overcurrent and short-circuit currents
DE1125057B (en) * 1960-08-19 1962-03-08 Elektro App Werke J W Stalin V Quick switch
DE1127452B (en) * 1960-02-16 1962-04-12 Elektro App Werke J W Stalin V Electrical overcurrent circuit breaker
DE1128009B (en) * 1960-07-27 1962-04-19 Licentia Gmbh DC high-speed switch
DE1131313B (en) * 1957-11-15 1962-06-14 Cie Generale D Electricite Soc AExtremely fast-acting switch release device
DE1132639B (en) * 1959-12-23 1962-07-05 Siemens Ag Switch or self switch
DE1141012B (en) * 1958-10-28 1962-12-13 Licentia Gmbh Protective device in power supply and distribution systems
DE1282776B (en) * 1960-09-08 1968-11-14 Siemens Ag Electric switch
DE1638094B1 (en) * 1968-02-28 1971-08-26 Ni Elektrotechnitscheskij I Quick switch

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431444A (en) * 1942-12-05 1947-11-25 Bendix Aviat Corp Polar relay
DE1131313B (en) * 1957-11-15 1962-06-14 Cie Generale D Electricite Soc AExtremely fast-acting switch release device
DE1077767B (en) * 1958-07-23 1960-03-17 Felten & Guilleaume Carlswerk Double-sided magnetic quick release
DE1079176B (en) * 1958-07-30 1960-04-07 Licentia Gmbh For preferably higher currents suitable self-switch with electromagnetic and / or thermal releases
DE1107330B (en) * 1958-08-13 1961-05-25 Calor Emag Elektrizitaets Ag Electrical switch for the automatic interruption of overcurrent and short-circuit currents
DE1141012B (en) * 1958-10-28 1962-12-13 Licentia Gmbh Protective device in power supply and distribution systems
DE1132639B (en) * 1959-12-23 1962-07-05 Siemens Ag Switch or self switch
DE1127452B (en) * 1960-02-16 1962-04-12 Elektro App Werke J W Stalin V Electrical overcurrent circuit breaker
DE1128009B (en) * 1960-07-27 1962-04-19 Licentia Gmbh DC high-speed switch
DE1125057B (en) * 1960-08-19 1962-03-08 Elektro App Werke J W Stalin V Quick switch
DE1282776B (en) * 1960-09-08 1968-11-14 Siemens Ag Electric switch
DE1638094B1 (en) * 1968-02-28 1971-08-26 Ni Elektrotechnitscheskij I Quick switch

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