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DE1060024B - Overload protection of highly loaded tripping coils - Google Patents

Overload protection of highly loaded tripping coils

Info

Publication number
DE1060024B
DE1060024B DEV15459A DEV0015459A DE1060024B DE 1060024 B DE1060024 B DE 1060024B DE V15459 A DEV15459 A DE V15459A DE V0015459 A DEV0015459 A DE V0015459A DE 1060024 B DE1060024 B DE 1060024B
Authority
DE
Germany
Prior art keywords
overload protection
highly loaded
transformer
tripping coils
coils
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.)
Pending
Application number
DEV15459A
Other languages
German (de)
Inventor
Dr-Ing Herbert Tolazzi
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.)
Voigt and Haeffner AG
Original Assignee
Voigt and Haeffner AG
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 Voigt and Haeffner AG filed Critical Voigt and Haeffner AG
Priority to DEV15459A priority Critical patent/DE1060024B/en
Publication of DE1060024B publication Critical patent/DE1060024B/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/12Automatic release mechanisms with or without manual release
    • H01H71/44Automatic release mechanisms with or without manual release having means for introducing a predetermined time delay

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Description

Überlastungsschutz von hochbelasteten Auslösespulen Die bei elektrischen Schaltgeräten zur Verwendung kommenden Schnellauslöser besitzen sehr kurze Eigenzeiten. Hierbei sind die Wicklungen des Schnellauslösers so ausgelegt, d'aß sie nur verhältnismäßig kurzzeitig belastet werden dürfen, andernfalls sie zerstört werden.Overload protection of highly loaded tripping coils The electrical Switching devices used for quick release have very short operating times. Here, the windings of the quick release are designed so that they are only proportionate may be loaded for a short time, otherwise they will be destroyed.

Man hat versucht, die kurzen Eigenzeiten durch Verwendung von Relais, Schützern, Wischkontakten an dem Betätigungsschalter od. dgl. zu erhalten. Diese Anordnungen haben aber den Nachteil, daß bei Versagung der Einrichtung der Auslöser zerstört werden kann.Attempts have been made to reduce the short proper times by using relays, Protectors, wiper contacts on the operating switch or the like. To get. These Arrangements have the disadvantage that if the device fails, the trigger can be destroyed.

Die Erfindung zeigt nun einen Überlastungsschutz von hochbelasteten Au.slösespulen, durch den es möglich, ist, äußerst kurze Auslösezeiten herzustellen, und bei dem im Falle einer Versagung eine Überlastung der Auslösespule nicht eintreten kann. Erfindungsgemäß wird der zur Speisung der Auslösespule dienende Strom einem gleichstromgespeisten Transformator entnommen. Es ist zwar bekannt, durch den Anschluß eines Transformators am Gleichstromnetz auf der Sekundärseite des Transformators einen Stromstoß zu erzeugen, doch wurde diese Tatsache noch nicht als Überlastungsschutz von Auslösespulen ausgenutzt, um damit die Zeitdauer des die Auslösespule speisenden Stromes festzulegen.The invention now shows an overload protection for heavily loaded Tripping coils, by means of which it is possible to produce extremely short tripping times, and in which, in the event of failure, the trip coil is not overloaded can. According to the invention, the current used to feed the trip coil is a DC-fed transformer removed. Although it is known by the connection a transformer on the direct current network on the secondary side of the transformer Generating a surge of electricity, however, this fact has not yet been used as an overload protection exploited by trip coils in order to reduce the duration of the feeding of the trip coil Set current.

Beispielsweise kann die Anordnung nach der Erfindung so getroffen werden, daß die über einen Transformator an das Gleichstromnetz angeschlossene Wicklung auf der Primärseite, also im Gleichstromkreis, einen Schalter besitzt, während die Sekundärseite des Transformators ohne Schaltelement nur mit der zu beaufschlagendenWicklung belastet ist. Wird nun der auf der Gleichstromseite befindliche Schalter geschlossen, so entsteht auf der Sekundärseite d'es Transformators nur ein kurzer Stromstoß, dessen Zeitdauer durch Änderung der Konstanten des Transformators (Wicklungsdaten, Streuung, Eisenweg usw.) verändert werden kann. Es läßt sich also mit dieser Anordnung eine nur kurzzeitige Belastung einer hochüberlastbaren Wicklung erzielen ohne Rücksicht auf die Dauer, während der der Schalter auf der Gleichstromseite geschlossen ist.For example, the arrangement according to the invention can be made in this way that the winding connected to the direct current network via a transformer on the primary side, i.e. in the direct current circuit, has a switch, while the Secondary side of the transformer without switching element only with the winding to be acted upon is burdened. If the switch on the direct current side is now closed, so there is only a short current surge on the secondary side of the transformer, its duration by changing the constants of the transformer (winding data, Scatter, iron path, etc.) can be changed. So it can be done with this arrangement only short-term loading of a highly overloadable winding can be achieved without consideration for the duration during which the switch on the direct current side is closed.

Claims (2)

PATENTANSPRUCHS: 1. Überlastungsschutz von hochbelasteten Auslösespulen, insbesondere bei Haftmagnet-Schnellauslösern, dadurch gekennzeichnet, daß der zur Speisung der Aus.lösespule dienende Strom einem gleichstromgespeisten Transformator entnommen wird. PATENT CLAIM: 1. Overload protection of highly loaded release coils, especially in the case of holding magnet quick releases, characterized in that the for A DC-fed transformer is fed to the tripping coil is removed. 2. Überlastungsschutz nach Anspruch 1, dadurch gekennzeichnet, daß durch Änderung der Konstanten des Transformators die Zeitdauer veränderbar ist. In Betracht gezogene Druckschriften Deutsche Patentschrift Nr. 691373. 2. Overload protection according to claim 1, characterized in that the duration can be changed by changing the constants of the transformer. Considered publications German Patent No. 691373.
DEV15459A 1958-11-22 1958-11-22 Overload protection of highly loaded tripping coils Pending DE1060024B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV15459A DE1060024B (en) 1958-11-22 1958-11-22 Overload protection of highly loaded tripping coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV15459A DE1060024B (en) 1958-11-22 1958-11-22 Overload protection of highly loaded tripping coils

Publications (1)

Publication Number Publication Date
DE1060024B true DE1060024B (en) 1959-06-25

Family

ID=7575047

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV15459A Pending DE1060024B (en) 1958-11-22 1958-11-22 Overload protection of highly loaded tripping coils

Country Status (1)

Country Link
DE (1) DE1060024B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE691373C (en) * 1938-03-27 1940-05-24 Siemens Schuckertwerke Akt Ges Device for the simultaneous transmission of signals in two different directions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE691373C (en) * 1938-03-27 1940-05-24 Siemens Schuckertwerke Akt Ges Device for the simultaneous transmission of signals in two different directions

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