DE462545C - Overcurrent heat release - Google Patents

Overcurrent heat release

Info

Publication number
DE462545C
DE462545C DEV22356D DEV0022356D DE462545C DE 462545 C DE462545 C DE 462545C DE V22356 D DEV22356 D DE V22356D DE V0022356 D DEV0022356 D DE V0022356D DE 462545 C DE462545 C DE 462545C
Authority
DE
Germany
Prior art keywords
winding
heat release
spring
release
overcurrent heat
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
DEV22356D
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 DEV22356D priority Critical patent/DE462545C/en
Application granted granted Critical
Publication of DE462545C publication Critical patent/DE462545C/en
Expired legal-status Critical Current

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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/164—Heating elements
    • 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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/164—Heating elements
    • H01H2071/165—Heating elements the bimetal being inductively heated, e.g. load current does not pass through bimetal

Landscapes

  • Breakers (AREA)

Description

Um bei der Herstellung von Überstromauslösungen mit thermischer Auslöseeinrichtung der Forderung zu entsprechen, mit dieser Auslösung noch eine Kiirzschlußauslösung zu verbinden, die unabhängig von der Dauer der thermischen Wirkung arbeitet, wird die Auslöseeinrichtung durch einen Stromwandler gespeist, und zwar wird nach vorliegender Neuerung als Sekundärwicklung eine Windung aus Bimetall verwendet, die nicht fest auf dem Magneten angebracht ist, sondern durch eine Feder in ihrer normalen Lage gehalten wird. Tritt Kurzschluß ein, so wird die Primärwicklung auf dynamischem Wege die sekundäre Wicldung fortschleudern unter Überwindung der Gegenfeder und dadurch die Auslösung rasch mechanisch bewirken. Um die nötige Erwärmung der Bimetallwindung zu erreichen,In order to produce overcurrent releases with thermal release devices to meet the requirement of a short-circuit release with this release to connect, which works regardless of the duration of the thermal effect, the release device is through a Current transformer fed, namely according to the present innovation as a secondary winding uses a bimetal coil that is not permanently attached to the magnet but is held in its normal position by a spring. Short-circuit occurs one, the primary winding becomes the secondary winding in a dynamic way hurling away by overcoming the return spring and thereby quickly triggering it mechanically. To get the necessary warming to achieve the bimetal winding,

ao kann man zweckmäßigerweise zu ihr Kupferwindungen parallel legen, die an sich geschlossen bekanntlich eine starke Wärmequelle bilden.ao you can expediently to it copper turns put in parallel, which are known to form a strong heat source when closed.

Die Anordnung ist in der Zeichnung dargestellt. Hier ist α das Eisen des Stromwandlers, b die Primärwicklung, c die sekundäre Bimetallwindung, die bei d drehbar gelagert ist und unter Einwirkung einer Gegenfeder e steht. Bei normaler Überlastung wird sich die Bimetallwindung c durchbiegen und so die Auslösung durch Druck auf die Klinke/ bewirken (Abb. 1). Tritt dagegen Kurzschluß ein, so wird die Primärwicklung b mechanisch die Windung c fortschleudern (s. Abb. 2), so daß durch mechanischen Druck auf f entgegen der Feder e die Auslösung direkt vor sich geht.The arrangement is shown in the drawing. Here α is the iron of the current transformer, b the primary winding, c the secondary bimetal winding, which is rotatably mounted at d and is under the action of a counter spring e . In the event of normal overload, the bimetallic winding c will bend and thus trigger the release by pressing the pawl / (Fig. 1). If, on the other hand, a short circuit occurs, the primary winding b will mechanically fling the winding c away (see Fig. 2), so that the triggering takes place directly through mechanical pressure on f against the spring e.

Claims (1)

Patentanspruch:Claim: Überstrom-Wärmeauslösung, bei der das Wärmeelement die Sekundärwicklung eines Transformators bildet, dadurch gekennzeichnet, daß eine rahmenförmig den Transformatorkern umschließende, in sich geschlossene Bimetallwindung (c) unter Gegenwirkung einer Feder (e) um einen Drehpunkt (d) schwingbar ist und bei Kurzschluß durch Fortschleudern von der Primärwicklung (b) die Auslösung bewirkt.Overcurrent thermal release, in which the heating element forms the secondary winding of a transformer, characterized in that a closed bimetallic winding (c) surrounding the transformer core in the form of a frame can oscillate around a pivot point (d) under the counteraction of a spring (e) and through in the event of a short circuit Hurling away from the primary winding (b) causes the trip.
DEV22356D Overcurrent heat release Expired DE462545C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV22356D DE462545C (en) Overcurrent heat release

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV22356D DE462545C (en) Overcurrent heat release

Publications (1)

Publication Number Publication Date
DE462545C true DE462545C (en) 1928-07-13

Family

ID=7579791

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV22356D Expired DE462545C (en) Overcurrent heat release

Country Status (1)

Country Link
DE (1) DE462545C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545984A (en) * 1949-05-24 1951-03-20 Westinghouse Electric Corp Protective relay for alternating current
DE851224C (en) * 1950-06-16 1952-10-02 Calor Emag Elek Zitaets Ag Transformer heated thermal release
DE19530493A1 (en) * 1995-08-18 1997-02-20 Siemens Ag Thermic actuator arm for fault protection switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545984A (en) * 1949-05-24 1951-03-20 Westinghouse Electric Corp Protective relay for alternating current
DE851224C (en) * 1950-06-16 1952-10-02 Calor Emag Elek Zitaets Ag Transformer heated thermal release
DE19530493A1 (en) * 1995-08-18 1997-02-20 Siemens Ag Thermic actuator arm for fault protection switch

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