DE434669C - Heat relay - Google Patents

Heat relay

Info

Publication number
DE434669C
DE434669C DEM88003D DEM0088003D DE434669C DE 434669 C DE434669 C DE 434669C DE M88003 D DEM88003 D DE M88003D DE M0088003 D DEM0088003 D DE M0088003D DE 434669 C DE434669 C DE 434669C
Authority
DE
Germany
Prior art keywords
heat
overloads
heat relay
relay
area
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
DEM88003D
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.)
Dr Paul Meyer AG
Original Assignee
Dr Paul Meyer 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 Dr Paul Meyer AG filed Critical Dr Paul Meyer AG
Priority to DEM88003D priority Critical patent/DE434669C/en
Application granted granted Critical
Publication of DE434669C publication Critical patent/DE434669C/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

Description

Wärmerelais. Es sind Wärmerelais bekannt, welche eine thermische Auslösung und eine magnetische Kurzschlußauslösung besitzen. Bei diesen kann die thermische Auslösung dadurch bewirkt sein, daß die Deformation eines direkt stromdurchflossenen Streifens (Hitzdraht) benutzt wird. Derartige Auslöser ergeben bei geringen Überlastungen zu kurze Zeiten.Heat relay. There are heat relays known which trigger thermal tripping and have a magnetic short-circuit release. With these, the thermal Triggering can be caused by the deformation of a directly current-carrying Strip (hot wire) is used. Such triggers occur with low overloads too short times.

Es ist ferner bekannt, die thermischen Auslöser mit einer Wicklung zu versehen, welche auf den Deformationskörper durch Wärmeübertragung einwirkt. Solche Körper geben eine erhebliche Zeit bei geringen Überlastungen, aber auch zu große Zeiten bei mittleren Cberlastungen, etwa in der Größenordnung der 2,5- bis 4 fachen Kennstromstärke. Mit Rücksicht auf die Anlaßstöße kann aber die magnetische Kurzschlußauslösung nicht auf allzu niedrige Werte eingestellt werden, so daß die Auslösung der durch Wärmeübertragung beheizten Auslöser in diesem Bereich eine Gefahrquelle bilden würde.It is also known the thermal release with a winding to provide, which acts on the deformation body through heat transfer. Such bodies give a significant amount of time with low overloads, but also too long times with medium overloads, roughly in the order of magnitude of 2.5 to 4 times the characteristic current strength. With regard to the impulses, however, the magnetic Short-circuit tripping should not be set to too low values, so that the Triggering of the trigger heated by heat transfer in this area is a source of danger would form.

Der Gegenstand der Erfindung ist nun die Ausnutzung der vorstehend niedergelegten Erkenntnisse in der Weise, daß das Relais drei Betätigungsvorrichtungen besitzt, welche auf einen gemeinsamen oder mehrere zusammenwirkende Kontakte arbeiten, und zwar für den Bereich der geringen Überlastungen einen Wärmekörper mit Wicklung, der durch Wärmeübertragung auf den Deformationskörper wirkt, für den Bereich der mittleren Überlastungen bis oberhalb des Anlaufstromes der Motoren einen direkt stromdurchflossenen Deformationskörper und für den Bereich der großen Überlastungen, welche oberhalb des möglichen Anlaufstromes liegen, eine magnetische Kurzschlußauslösung, welche gegebenenfalls auch noch mit einer Verzögerung versehen sein kann, im allgemeinen aber eine solche nicht benötigt.The object of the invention is now the utilization of the above established knowledge in such a way that the relay has three actuators owns who work on a common or several interacting contacts, namely a heat sink with winding for the area of low overloads, which acts through heat transfer on the deformation body, for the area of medium overloads up to above the starting current of the motors one directly current-carrying deformation bodies and for the area of large overloads, which are above the possible starting current, a magnetic short-circuit release, which may also be provided with a delay, in general but such a thing is not required.

Durch die Kombination dieser drei Betätigungsorgane des Relais wird eine Charakteristik erreicht, die den praktischen Bedürfnissen in -jedem Bereich entspricht und die außerdem auch bei etwaigen direkten Kurzschlüssen, z. B. Klemmenkurzschlüssen des Motors, eine sofortige Ausschaltung ohne jede Verzögerung ermöglicht.By combining these three actuators the relay becomes reaches a characteristic that meets the practical needs in each area corresponds and also in the event of any direct short circuits, e.g. B. Terminal shorts of the motor, enables immediate shutdown without any delay.

Claims (1)

PATENTANSPRUCH Wärmerelais, gekennzeichnet durch Verbindung dreier Auslöseorgane, eines durch Wicklung mittels Wärmeübertragung geheizten Deformationskörpers, eines direkt stromdurchflossenen Deformationskörpers und eines elektromagnetischen Kurzschlußauslösers.PATENT CLAIM Heat relay, characterized by the connection of three Triggering devices, a deformation body heated by winding by means of heat transfer, a deformation body through which current flows directly and an electromagnetic one Short-circuit release.
DEM88003D 1925-01-18 1925-01-18 Heat relay Expired DE434669C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM88003D DE434669C (en) 1925-01-18 1925-01-18 Heat relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM88003D DE434669C (en) 1925-01-18 1925-01-18 Heat relay

Publications (1)

Publication Number Publication Date
DE434669C true DE434669C (en) 1926-09-29

Family

ID=7320903

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM88003D Expired DE434669C (en) 1925-01-18 1925-01-18 Heat relay

Country Status (1)

Country Link
DE (1) DE434669C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE890222C (en) * 1936-01-14 1953-09-17 Siemens Ag Installation self-switch, circuit breaker or the like, especially for centrifuge motors with long-lasting start-up
DE1197966B (en) * 1959-11-06 1965-08-05 Siemens Ag Protective device for power supply systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE890222C (en) * 1936-01-14 1953-09-17 Siemens Ag Installation self-switch, circuit breaker or the like, especially for centrifuge motors with long-lasting start-up
DE1197966B (en) * 1959-11-06 1965-08-05 Siemens Ag Protective device for power supply systems

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