AT235936B - Residual current circuit breaker with summation current transformer and a magnetic tripping device influenced by the transformer - Google Patents

Residual current circuit breaker with summation current transformer and a magnetic tripping device influenced by the transformer

Info

Publication number
AT235936B
AT235936B AT397462A AT397462A AT235936B AT 235936 B AT235936 B AT 235936B AT 397462 A AT397462 A AT 397462A AT 397462 A AT397462 A AT 397462A AT 235936 B AT235936 B AT 235936B
Authority
AT
Austria
Prior art keywords
transformer
circuit breaker
magnetic
tripping device
magnetic tripping
Prior art date
Application number
AT397462A
Other languages
German (de)
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT235936B publication Critical patent/AT235936B/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/36Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils
    • G01K7/38Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils the variations of temperature influencing the magnetic permeability
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/36Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Fehlerstromschutzschalter mit Summenstromwandler und einem vom
Wandler beeinflussten magnetischen Auslöseorgan 
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 



   Auf dem Sockel 1 befinden sich die Klemmen 2,3 für die ankommenden und 4, 5 für die abgehenden Leitungen. Im Inneren des Sockels sind die Schaltkontaktteile untergebracht, die in der Fig. 1 symbolisch angedeutet sind.   6, 7   sind die beweglichen Kontaktbrücken und 8,9 die zugehörigen ortsfesten Kontaktteile. Auf dem Sockel 1 sind ein Schaltschloss 10 mit dem Einschaltdruckknopf 11 und dem Ausschaltdruckknopf 12, ein Summenstromwandler 13 und dazwischen ein magnetisches Auslöseorgan 14 angeord-   net. Schaltschloss 10, Summenstromwandler   13 und   magnetischesAuslöseorgan 14 befinden   sich unter einer gemeinsamen Schalterkappe 15, die auf dem Sockel 1 aufsitzt. Der Summenstromwandler 13 hat die beiden Primärwicklungen 16, 17 und die Sekundärwicklung 18.

   Das magnetische Auslöseorgan 14 ist mit der Wicklung 19 versehen, die an die Sekundärwicklung 18 des Summenstromwandlers angeschlossen ist. 



   Das magnetische Auslöseorgan 14 ist als Haltemagnet ausgebildet. Vorzugsweise ist der Haltemagnet ein Sperrmagnet. Zweckmässig hat er den Aufbau, wie in der belgischen Patentschrift   Nr. 60624i   angegeben ist. Der Aufbau des Sperrmagneten ist im Prinzip in den Fig. 3 und 4 der Zeichnung dargestellt.   Der Magnetkreis desSperrmagneten   hat zweiBlechpakete 20,21, die in geeigneter Weise im Abstand voneinander gehalten sind. An einer Stelle befindet sich zwischen den beiden Blechpaketen ein Dauermagnet 22. Auf dem mittleren Schenkel der Blechpakete ist die Wicklung 19 aufgebracht. Die Blechpakete 20,21 wirken mit dem Anker 23 zusammen. Der Anker befindet sich im angezogenen Zustand, wenn dieMagnetwicklung 19 durch den Steuerstrom des Summenstromwandlers nicht erregt ist.

   Tritt ein Steuerstrom auf, so vermindert sich der den Anker 23 durchsetzende magnetische Fluss, so dass der Anker unter Wirkung einer nicht gezeichneten Feder abfallen kahn. Nach der Erfindung ist das magnetische Auslöseorgan zugleich als Temperaturwächter ausgebildet. Es ist dies dadurch erreicht, dass ein Bauteil des Magnetkreises aus einem Werkstoff mit einer Curie-Temperatur von etwa 120 bis 1500C besteht.

   In dem Aus- 
 EMI2.1 
 ernentemperatur des Schalters, unter anderem auch die Temperatur des magnetischen   Auslöseorganes.   Steigert sich die Innentemperatur so weit, dass die Temperatur erreicht wird, bei der der aus besonderem magnetischem Baustoff bestehende Bauteil, im vorliegenden Fall der Anker 23, seine magnetische Durchlässigkeit verändert, so fällt der Anker 23 von den Blechpaketen 20,21 ab, ohne dass eine Erregung der Wicklung 19 durch einen Steuerstrom des Summenstromwandlers notwendig gewesen ist. 



   Das magnetische Auslöseorgan, das erfindungsgemäss zugleich als Temperaturwächter dient, kann auch in einer andern Weise als Sperrmagnet ausgebildet sein.



   <Desc / Clms Page number 1>
 



  Residual current circuit breaker with summation current transformer and one of the
Transducers influenced the magnetic trigger
 EMI1.1
 

 <Desc / Clms Page number 2>

 



   On the base 1 there are terminals 2, 3 for the incoming and 4, 5 for the outgoing lines. The switch contact parts, which are indicated symbolically in FIG. 1, are housed in the interior of the base. 6, 7 are the movable contact bridges and 8, 9 are the associated stationary contact parts. A switch lock 10 with the switch-on pushbutton 11 and the switch-off pushbutton 12, a summation current transformer 13 and a magnetic release element 14 in between are arranged on the base 1. Switching mechanism 10, summation current transformer 13 and magnetic release element 14 are located under a common switch cap 15, which rests on base 1. The summation current transformer 13 has the two primary windings 16, 17 and the secondary winding 18.

   The magnetic release element 14 is provided with the winding 19 which is connected to the secondary winding 18 of the summation current transformer.



   The magnetic trigger element 14 is designed as a holding magnet. The holding magnet is preferably a blocking magnet. Appropriately, it has the structure as indicated in Belgian patent specification No. 60624i. The structure of the locking magnet is shown in principle in FIGS. 3 and 4 of the drawing. The magnetic circuit of the blocking magnet has two sheet metal stacks 20, 21, which are suitably spaced from one another. A permanent magnet 22 is located at one point between the two laminated cores. The winding 19 is applied to the middle leg of the laminated cores. The laminated cores 20, 21 cooperate with the armature 23. The armature is in the attracted state when the magnet winding 19 is not excited by the control current of the summation current transformer.

   If a control current occurs, the magnetic flux passing through the armature 23 is reduced so that the armature can fall off under the action of a spring, not shown. According to the invention, the magnetic trigger element is also designed as a temperature monitor. This is achieved in that a component of the magnetic circuit consists of a material with a Curie temperature of around 120 to 1500C.

   In the off
 EMI2.1
 temperature of the switch, including the temperature of the magnetic trigger element. If the internal temperature increases to such an extent that the temperature is reached at which the component consisting of a special magnetic building material, in the present case the armature 23, changes its magnetic permeability, the armature 23 falls off the laminated cores 20, 21 without an excitation of the winding 19 by a control current of the summation current transformer was necessary.



   The magnetic release element, which according to the invention also serves as a temperature monitor, can also be designed as a blocking magnet in a different manner.

 

Claims (1)

PATENTANSPRUCH : EMI2.2 gekennzeichnet,Überlastungen als Temperaturwächter ausgebildet ist durch an sich bekannte Herstellung eines Bauteiles (23) des Magnetkreises aus einem magnetischen Werkstoff mit einer Curie-Temperatur von etwa 120 bis 1500C. PATENT CLAIM: EMI2.2 characterized, overload is designed as a temperature monitor by known production of a component (23) of the magnetic circuit from a magnetic material with a Curie temperature of about 120 to 1500C.
AT397462A 1961-07-29 1962-05-15 Residual current circuit breaker with summation current transformer and a magnetic tripping device influenced by the transformer AT235936B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE235936X 1961-07-29

Publications (1)

Publication Number Publication Date
AT235936B true AT235936B (en) 1964-09-25

Family

ID=5899348

Family Applications (1)

Application Number Title Priority Date Filing Date
AT397462A AT235936B (en) 1961-07-29 1962-05-15 Residual current circuit breaker with summation current transformer and a magnetic tripping device influenced by the transformer

Country Status (1)

Country Link
AT (1) AT235936B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042056A1 (en) * 1980-06-13 1981-12-23 Schupa-Elektro-Gmbh + Co Kg Temperature compensation for highly sensitive permanent-magnetic holding relays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042056A1 (en) * 1980-06-13 1981-12-23 Schupa-Elektro-Gmbh + Co Kg Temperature compensation for highly sensitive permanent-magnetic holding relays

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