AT99585B - Fuse switch with overcurrent release. - Google Patents

Fuse switch with overcurrent release.

Info

Publication number
AT99585B
AT99585B AT99585DA AT99585B AT 99585 B AT99585 B AT 99585B AT 99585D A AT99585D A AT 99585DA AT 99585 B AT99585 B AT 99585B
Authority
AT
Austria
Prior art keywords
fuse switch
overcurrent release
resistance
current
switch
Prior art date
Application number
Other languages
German (de)
Inventor
Adolf Ing Jahn
Original Assignee
Adolf Ing Jahn
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 Adolf Ing Jahn filed Critical Adolf Ing Jahn
Application granted granted Critical
Publication of AT99585B publication Critical patent/AT99585B/en

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  • Motor And Converter Starters (AREA)
  • Relay Circuits (AREA)
  • Emergency Protection Circuit Devices (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Sicherungsschalter mit   Überstromauslosung.   
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 angenommen. Das Widerstandsverhältnis zwischen Spule und Widerstand sei   1 : 2.   Zum Abschalten des Mechanismus sei ein Strom in der Magnetspule von 2 Amp. nötig.   Durchfliesst   nun ein dauernder Strom von 45 Amp., also 50% Überlastung den Apparat, so hat man in der Spule 1-5 Amp. im Widerstand 3 Amp. Durch diesen höheren Strom wird eine Erwärmung des Widerstandes   herbeigeführt   auf zirka 150-200 , wodurch sich der Widerstand um   80-100% erhöht.   Die Folge dieser Widerstandberhöhung ist eine Stromabnahme im Widerstand und Stromzunahme in der Magnetspule, wodurch rasch der notwendige Strom von 2 Amp. erreicht wird und dadurch die sofortige Auslösung des Sperrmechanismus erfolgt.

   Tritt bei dem Apparat ein kurzer Stromstoss auf, so muss derselbe unter den vorerwähnten Verhältnissen, da die Erwärmung des Widerstandes so rasch nicht   erfolgt, mindestens 6 Amp., also 100%   Überlastung betragen. Diese   Verhältnisse   lassen sich natürlich durch entsprechende Änderung der Widerstände nach Bedarf regulieren.



   <Desc / Clms Page number 1>
 



  Fuse switch with overcurrent release.
 EMI1.1
 

 <Desc / Clms Page number 2>

 accepted. The resistance ratio between coil and resistance is 1: 2. To switch off the mechanism, a current of 2 amps is required in the magnetic coil. If a continuous current of 45 Amp., I.e. 50% overload, flows through the apparatus, then the coil has 1-5 Amp. In the resistance 3 Amp the resistance increases by 80-100%. The consequence of this increase in resistance is a decrease in the current in the resistance and an increase in the current in the solenoid, which quickly achieves the required current of 2 amps and the locking mechanism is triggered immediately.

   If the apparatus receives a brief current surge, it must be at least 6 amps, i.e. 100% overload, under the conditions mentioned above, since the heating of the resistor does not take place so quickly. These ratios can of course be regulated by changing the resistances accordingly.

Claims (1)

PATENT-ANSPRUCH : Sicherungsschalter mit Überstromauslösung vermittels eines, durch eine Feder in Schliessstellung gehaltenen, mit dem Magnetanker verbundenen Sperrorganes, gekennzeichnet durch einen parallel zur EMI2.1 EMI2.2 PATENT CLAIM: Fuse switch with overcurrent release by means of a locking element, held in the closed position by a spring and connected to the armature, characterized by a blocking element parallel to EMI2.1 EMI2.2
AT99585D 1924-02-22 1924-02-22 Fuse switch with overcurrent release. AT99585B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT99585T 1924-02-22

Publications (1)

Publication Number Publication Date
AT99585B true AT99585B (en) 1925-04-10

Family

ID=3618740

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99585D AT99585B (en) 1924-02-22 1924-02-22 Fuse switch with overcurrent release.

Country Status (1)

Country Link
AT (1) AT99585B (en)

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