DE601375C - Overcurrent time release in which the timer is driven by a running motor - Google Patents

Overcurrent time release in which the timer is driven by a running motor

Info

Publication number
DE601375C
DE601375C DEV28174D DEV0028174D DE601375C DE 601375 C DE601375 C DE 601375C DE V28174 D DEV28174 D DE V28174D DE V0028174 D DEV0028174 D DE V0028174D DE 601375 C DE601375 C DE 601375C
Authority
DE
Germany
Prior art keywords
overcurrent
timer
driven
time release
rotor
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
DEV28174D
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 DEV28174D priority Critical patent/DE601375C/en
Application granted granted Critical
Publication of DE601375C publication Critical patent/DE601375C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/12Automatic release mechanisms with or without manual release
    • H01H71/42Induction-motor, induced-current, or electrodynamic release mechanisms

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Description

Bei Überstromzeitauslösern mit Zeitwerk sind Anordnungen bekannt, bei denen bei Erreichen eines Üb er Stroms ein bis dahin stillstehender kleiner Motor in Gang gesetzt wird und ein Zeitwerk antreibt, das nach einer gewissen Zeit die Auslösung des Schalters bewirkt. Eine besonders einfache Form solcher Überstromzeitauslöser ergibt sich gemäß der Erfindung dadurch, daß der Rotor des das Zeitwerk antreibenden Motors im normalen Zustand in axialer Richtung asymmetrisch zum Magnetfeld steht und erst bei Erreichen der Grenze, bei der der Überstrommagnet in Tätigkeit treten soll, in das Feld hineinge-In the case of overcurrent releases with a timer, arrangements are known in which when of an overcurrent, a small motor that has been standing still is set in motion and drives a timer that triggers the switch after a certain time. A particularly simple form of such time-overcurrent release results from FIG Invention in that the rotor of the motor driving the timer in the normal State is asymmetrical to the magnetic field in the axial direction and only when it is reached the limit at which the overcurrent magnet is to come into action, enters the field

ig zogen wird, d.h. der so axial verschiebbare Rotor dient zugleich als Ansprechorgan bei Überstrom. Dem Hineinziehen in das Magnetfeld setzt sich eine Eichfeder entgegen, und die Kupplung des Motors mit dem Zeitwerk erfolgt beim Hineinziehen durch Kupplung mit diesen Teilen.ig is pulled, i.e. the axially displaceable one The rotor also serves as a response element in the event of overcurrent. Being drawn into the magnetic field a calibration spring opposes itself, and the coupling of the motor with the timer takes place when pulling in by coupling with these parts.

Die Zeichnung stellt eine solche Anordnung dar. α ist der Überstrommagnet, b die vom Überstrom erregten Spulen, c ist der Rotor/ der in den Lagern d, e beweglich eingebaut ist. Er treibt ein Rad/ an. g ist das mit dem Rad in Eingriff kommende Antriebsrad für das Zeitwerk, von dem aus dann die eigentliche Auslöseverklinkung des zugehörigen Schalters gelöst werden kann. It ist 'eine Eichfeder, die den Motor c in seiner nicht gekuppelten Lage so lange hält, bis der Strom in b die eingestellte Grenze erreicht hat. Um ein entsprechendes Anlauffeld für den als Einphasenmotor anlaufenden Rotor zu erhalten, ist der Magnet« an der Stelle, die dem Rotor c gegenübersteht, geschlitzt und mit einer Hilfswicklung/ versehen. Solange der Strom in dem Überstrommagneten a bzw. in der Überstromwicklung b normal bleibt, befindet sich der Rotor c in der in der Zeichnung dargestellten Lage, in der er durch die Eichfeder h gehalten wird. Tritt Überstrom ein, so zieht der Magnete den Rotor c in das Feld hinein, und zwar 'entgegen der Wirkung der Feder h. Z.dL\iaxz.a.f und g kommen in Eingriff, und das mit g verbundene Zeitwerk beginnt zu laufen, bis nach der gewünschten Zeit die Auslösung erfolgt. Tritt während dieser Zeitdauer ein Rückgang der Stromstärke ein, so kehrt unter der Einwirkung der Feder h der Rotor c in die Anfangslage zurück, und es erfolgt keine Unterbrechung des Schalters. In seiner Ruhelage kann der Rotor in bekannter Weise abgebremst werden.The drawing shows such an arrangement. Α is the overcurrent magnet, b the coils excited by the overcurrent, c is the rotor / which is movably installed in the bearings d, e. He drives a wheel /. g is the drive wheel for the timer that comes into engagement with the wheel, from which the actual release latching of the associated switch can then be released. It is a calibration spring that holds the motor c in its uncoupled position until the current in b has reached the set limit. In order to obtain a suitable starting field for the rotor, which starts up as a single-phase motor, the magnet is slotted at the point opposite the rotor c and provided with an auxiliary winding /. As long as the current in the overcurrent magnet a or in the overcurrent winding b remains normal, the rotor c is in the position shown in the drawing, in which it is held by the calibration spring h . If overcurrent occurs, the magnet pulls the rotor c into the field, namely 'against the action of the spring h. Z.dL \ iaxz.af and g intervene and the timer connected to g begins to run until it is triggered after the desired time. If the current intensity decreases during this period, the rotor c returns to its initial position under the action of the spring h , and the switch is not interrupted. In its rest position, the rotor can be braked in a known manner.

Claims (1)

Patentanspruch:Claim: Überstromzeitauslöser, bei dem das Zeitwerk von einem laufenden Motor angetrieben wird, dadurch gekennzeichnet, daß der Rotor (c) des Antriebsmptors axial verschiebbar ist und so gleichzeitig als Überstromansprechglied dient, indem er unterhalb der Ansprechgrenze des Überstromgliedes asymmetrisch zum Magnetfeld steht und erst bei Eintreten von Überstrom in das Magnetfeld entgegen einer Eichfeder (Ji) gezogen wird, wobei eine Kupplung mit dem auf den Auslösemechanismus des zugehörigen Schalters wirkenden Zeitwerk erfolgt.Overcurrent time release, in which the timer is driven by a running motor, characterized in that the rotor (c) of the drive motor is axially displaceable and thus simultaneously serves as an overcurrent response element by being below the response limit of the overcurrent element asymmetrically to the magnetic field and only when Overcurrent is drawn into the magnetic field against a calibration spring (Ji) , whereby a coupling with the timer acting on the trigger mechanism of the associated switch takes place.
DEV28174D Overcurrent time release in which the timer is driven by a running motor Expired DE601375C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV28174D DE601375C (en) Overcurrent time release in which the timer is driven by a running motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV28174D DE601375C (en) Overcurrent time release in which the timer is driven by a running motor

Publications (1)

Publication Number Publication Date
DE601375C true DE601375C (en) 1934-08-14

Family

ID=7583949

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV28174D Expired DE601375C (en) Overcurrent time release in which the timer is driven by a running motor

Country Status (1)

Country Link
DE (1) DE601375C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750630C (en) * 1938-03-09 1945-01-20 Coupling arrangement for delayed overcurrent release or relay
DE920382C (en) * 1948-10-02 1954-11-22 Siemens Ag Relay arrangement for overcurrent protection in AC systems
DE1156150B (en) * 1959-09-30 1963-10-24 Siemens Ag Zero voltage time relay with a switching element that actuates a relay contact with a time delay depending on the travel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750630C (en) * 1938-03-09 1945-01-20 Coupling arrangement for delayed overcurrent release or relay
DE920382C (en) * 1948-10-02 1954-11-22 Siemens Ag Relay arrangement for overcurrent protection in AC systems
DE1156150B (en) * 1959-09-30 1963-10-24 Siemens Ag Zero voltage time relay with a switching element that actuates a relay contact with a time delay depending on the travel

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