DE431993C - Device for switching off lines in the event of overcurrent - Google Patents

Device for switching off lines in the event of overcurrent

Info

Publication number
DE431993C
DE431993C DEV19552D DEV0019552D DE431993C DE 431993 C DE431993 C DE 431993C DE V19552 D DEV19552 D DE V19552D DE V0019552 D DEV0019552 D DE V0019552D DE 431993 C DE431993 C DE 431993C
Authority
DE
Germany
Prior art keywords
relay
winding
overcurrent
switching
low
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
DEV19552D
Other languages
German (de)
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
Publication date
Priority to DEV19552D priority Critical patent/DE431993C/en
Application granted granted Critical
Publication of DE431993C publication Critical patent/DE431993C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current

Landscapes

  • Relay Circuits (AREA)

Description

Sind die zur Abschaltung von Leitungen vorgesehenen Überstromrelais an Stromwandler angeschlossen und wird die Auslösung der Schalter durch besondere, von den Überstromrelais gesteuerten Auslöserelais bewirkt, so muß vor Erreichen der eingestellten Auslösestromstärke die Auslösewicklung entweder kurzgeschlossen sein oder vom Stromwandler abgeschaltet werden. Liegen z. B. die Wick-ίο lungen des Niederspannungs-Überstromrelais der Auslösewicklung parallel oder wird durch Kontaktgabe durch das Niederspannungs-Überstromrelais die Auslösewicklung zu diesem parallel geschaltet, so wird das Überstromrelais infolge des viel höheren Widerstandes der Wicklung des Niederspannungsrelais gegenüber der Auslösewicklung stromlos werden und nunmehr der Einschalter für die Auslösespule sich wieder öffnen; dann erao folgt wieder ein Ansprechen usw., und ein dauerndes öffnen und Schließen des Kontaktes ist die Folge. Um dieses zu vermeiden, besitzt in vorliegender Erfindung das Niederspannungs-Überstromrelais außer der normalen Wicklung eine Hilfswicklung, die den Kontakt nach erfolgtem Ansprechen so lange geschlossen hält, bis durch Ansprechen der Auslösespule und Auslösung des Schalters alle Teile stromlos werden.Are the overcurrent relays on current transformers provided for disconnecting lines connected and the triggering of the switch is carried out by special, of the overcurrent relay controlled tripping relay, so must before reaching the set tripping current the tripping winding can either be short-circuited or switched off by the current transformer. Are z. B. the Wick-ίο lungs of the low-voltage overcurrent relay of the tripping winding in parallel or is through Contact is made by the low-voltage overcurrent relay, the triggering winding to this connected in parallel, so the overcurrent relay is due to the much higher resistance the winding of the low-voltage relay will be de-energized compared to the release winding and now the switch for the trip coil will open again; then erao is followed by an address, etc., and a permanent opening and closing of the contact is the result. To avoid this, possesses in the present invention the low-voltage overcurrent relay other than the normal Winding an auxiliary winding that keeps the contact closed after it has responded until the Trip coil and triggering of the switch all parts are de-energized.

Aus der Abbildung ist diese Anordnung zu ersehen, α ist der Stromwandler, b das Niederspannungs-Überstromrelais, c der Schließungskontakt für das Schalten der Auslösewicklung d auf den Stromwandler a. Nach Ansprechen des Kontaktes c wird dieser durch die Hilfswicklung e geschlossen gehalten, bis die Auslösung erfolgt ist.This arrangement can be seen in the figure, α is the current transformer, b the low-voltage overcurrent relay, c the closing contact for switching the tripping winding d to the current transformer a. After the contact c has responded, it is kept closed by the auxiliary winding e until it is triggered.

Claims (1)

Patent-Anspruch:Patent claim: Einrichtung zur Abschaltung von Leitungen bei Überstrom mittels an Stromwandler angeschlossener Niederspannungs-Überstromrelais und von diesen eingeschalteten Auslöserelais, dadurch gekennzeichnet, daß das Niederspannungs-Üb er stromrelais noch einie Haltewicklung besitzt, die in Reihe mit der Auslösewicklung und zusammen mit dieser parallel zum Überstromrelais liegt, und welche die von der normalen Wicklung des Niederspannungs-Überstromrelais bewirkte Kontaktgabe an diesem Relais so lange aufrechterhält, bis durch das Ansprechen der Auslösewicklung und Abschaltung des zugehörigen Schalters alle Teile stromlos werden.Device for switching off lines in the event of overcurrent by means of a current transformer connected low-voltage overcurrent relay and tripping relay switched on by these, characterized in that that the low-voltage over-current relay still has some holding winding that in series with the tripping winding and together with this in parallel with the overcurrent relay and which is that of the normal winding of the low-voltage overcurrent relay caused contact on this relay is maintained until the triggering winding responds and switching off the associated switch, all parts are de-energized. *) Von dem. Patentsucher ist als der Erfinder angegeben worden:*) Of the. Patent seeker has been named as the inventor: Dr.-Ing. e. h. Max Vogelsang in Frankfurt a. M.Dr.-Ing. e. H. Max Vogelsang in Frankfurt a. M.
DEV19552D Device for switching off lines in the event of overcurrent Expired DE431993C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV19552D DE431993C (en) Device for switching off lines in the event of overcurrent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV19552D DE431993C (en) Device for switching off lines in the event of overcurrent

Publications (1)

Publication Number Publication Date
DE431993C true DE431993C (en) 1926-07-24

Family

ID=7577936

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV19552D Expired DE431993C (en) Device for switching off lines in the event of overcurrent

Country Status (1)

Country Link
DE (1) DE431993C (en)

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