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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective 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
- H01H77/10—Protective 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
- H01H77/107—Protective 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)
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)
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 |
-
1924
- 1924-04-24 CH CH109564D patent/CH109564A/en unknown
Cited By (12)
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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