DE454237C - Safety device with quick switch - Google Patents
Safety device with quick switchInfo
- Publication number
- DE454237C DE454237C DEV21952D DEV0021952D DE454237C DE 454237 C DE454237 C DE 454237C DE V21952 D DEV21952 D DE V21952D DE V0021952 D DEV0021952 D DE V0021952D DE 454237 C DE454237 C DE 454237C
- Authority
- DE
- Germany
- Prior art keywords
- switch
- relay
- speed switch
- quick switch
- safety device
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Keying Circuit Devices (AREA)
Description
Zur Sicherung elektrischer Anlagen durch Schnellschalter sind Anordnungen bekannt geworden, bei denen zu den Kontakten des Schnellschalters dauernd Widerstände parallel liegen, die den Abschaltstrom am Schnellschalter vermindern sollen.For securing electrical systems by high-speed switches, arrangements have become known, in which the contacts of the high-speed switch are permanently connected in parallel with resistors that control the cut-off current at the high-speed switch should decrease.
Die Erfindung betrifft nun einen Schnellschalter mit Parallelwiderstand, bei dem aber der Widerstand erst im Augenblick des An-Sprechens des Schnellschalters eingeschaltet wird. Das Arbeiten erfolgt so, daß sich in dem Stromkreis des Schnellschalters außer seinem eigenen noch ein zweites Auslöserelais befindet, daß bei Überstrom früher anspricht als das Schnellschalterrelais. Durch dieses Ansprechen wird parallel den Schnellschalterkontakten ein Stromkreis geschlossen, in dem ein Widerstand und ein drittes Auslöserelais liegt. Nach Öffnen des Schnellechalters versucht der gesamte Strom über den Widerstand zu fließen, wird aber durch diesen herabgedrückt. Der durchfließende Strom genügt aber, um das in diesem Stromkreis liegende Relais zum Ansprechen zu bringen, wodurch der Widerstand abgeschaltet und der gesamte Stromkreis völlig unterbrochen wird.The invention now relates to a high-speed switch with parallel resistance, but in which the resistance is only switched on at the moment the quick switch is activated will. The work is done in such a way that it is in the circuit of the quick switch except There is also a second trip relay on his own, which responds earlier in the event of an overcurrent than the quick switch relay. Through this response, the quick switch contacts are in parallel a circuit is closed in which a resistor and a third trip relay lies. Tried after opening the fast switch all of the current flowing through the resistor is pushed down by it. However, the current flowing through is sufficient to trigger the relay in this circuit, whereby the resistor is switched off and the entire circuit is completely interrupted will.
Die Abbildung zeigt eine der möglichen Ausführungsformen, α ist der Schnellschalter mit seinem Auslöserelais b. c ist ein weiteres im Betriebsstromkreis liegendes, niedriger eingestelltes Auslöserelais, das beim Ansprechen den Schalter d schließt und so den Widerstände parallel schaltet. / ist ein Relais, das durch Betätigen des Hebels g· den Schalter d zum Öffnen freigibt. Kurz vor dem Ansprechen des Relais b spricht das Relais c an und schaltet zu den Kontakten des Schnellschalters α durch Schließen des Schalters d den Widerstand e parallel. Nach Öffnen der Schnellschalterkontakte fließt ein durch den Widerstände herabgesetzter Strom über das Relais/. Durch sein Ansprechen entriegelt der Hebelg den Schalter^, und der Nebenstromkreis wird so geöffnet.The figure shows one of the possible embodiments, α is the high-speed switch with its trip relay b. c is another lower set trip relay in the operating circuit, which closes switch d when responding and thus switches the resistors in parallel. / is a relay which, by operating lever g · releases switch d to open. Shortly before the relay b responds, the relay c responds and switches the resistor e parallel to the contacts of the quick switch α by closing the switch d. After opening the quick switch contacts, a current reduced by the resistors flows through the relay /. By responding to the lever g unlocks the switch ^, and the secondary circuit is opened.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV21952D DE454237C (en) | Safety device with quick switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV21952D DE454237C (en) | Safety device with quick switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE454237C true DE454237C (en) | 1927-12-31 |
Family
ID=7579518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEV21952D Expired DE454237C (en) | Safety device with quick switch |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE454237C (en) |
-
0
- DE DEV21952D patent/DE454237C/en not_active Expired
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