DE462545C - Overcurrent heat release - Google Patents
Overcurrent heat releaseInfo
- 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
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)
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)
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 |
-
0
- DE DEV22356D patent/DE462545C/en not_active Expired
Cited By (3)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE462545C (en) | Overcurrent heat release | |
GB543194A (en) | Improvements in and connected with automatic circuit breakers and similar electric switchgear | |
GB869424A (en) | Improvements in or relating to current interrupting devices | |
DE525939C (en) | Overcurrent release device for alternating current with a thermal time release and with an instantaneous electromagnetic quick release | |
DE733607C (en) | Overcurrent monitoring device | |
DE535664C (en) | Overcurrent switch with thermal and short-circuit release | |
US2575740A (en) | Circuit breaker | |
AT107159B (en) | Circuit breakers for motors, transformers, etc. like | |
DE572654C (en) | Thermal release device | |
DE595932C (en) | Circuit breakers, especially for motors and transformers | |
DE595080C (en) | Overcurrent relay or switch with thermal release through bimetal and with short-circuit magnet release | |
DE760635C (en) | Toggle lever mechanism actuated by a bimetal strip | |
DE519743C (en) | Bimetal release | |
DE519744C (en) | Maximum current time release | |
AT120772B (en) | Single pole automatic switch. | |
AT124656B (en) | Device for the protection of mercury vapor rectifiers and similar apparatus. | |
AT112080B (en) | Quick switch with friction clutch. | |
DE572029C (en) | Heat relay | |
US2162521A (en) | Control device | |
AT235936B (en) | Residual current circuit breaker with summation current transformer and a magnetic tripping device influenced by the transformer | |
AT153968B (en) | Automatic off switch. | |
GB502052A (en) | Improvements in, or relating to, thermally-operated tripping devices for use in connection with automatic circuit breakers and similar electrical switchgear | |
DE613956C (en) | Production of a thermal image of an electrical device using a heat release that protects the device from overload and is not influenced by the device temperature | |
AT131489B (en) | ||
DE967679C (en) | Switch with temperature-dependent triggering device |