DE432171C - Device on transformers or choke coils for continuous regulation with sliding contact on bare winding and magnetic shunt to reduce short-circuit currents - Google Patents

Device on transformers or choke coils for continuous regulation with sliding contact on bare winding and magnetic shunt to reduce short-circuit currents

Info

Publication number
DE432171C
DE432171C DES59947D DES0059947D DE432171C DE 432171 C DE432171 C DE 432171C DE S59947 D DES59947 D DE S59947D DE S0059947 D DES0059947 D DE S0059947D DE 432171 C DE432171 C DE 432171C
Authority
DE
Germany
Prior art keywords
winding
sliding contact
transformers
magnetic shunt
choke coils
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
DES59947D
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
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 and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Priority to DES59947D priority Critical patent/DE432171C/en
Application granted granted Critical
Publication of DE432171C publication Critical patent/DE432171C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/06Variable transformers or inductances not covered by group H01F21/00 with current collector gliding or rolling on or along winding

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)

Description

Einrichtung an Transformatoren oder Drosselspulen für stetige Regelung mit auf blanker Wicklung gleitendem Schleifkontakt und magnetischem Nebenschluß zur Verminderung der 1Curzschlußströme. Um bei Regeltransformatoren eine möglichst stetige Änderung der Windungszahl zu erzielen und zugleich den komplizierten Aufbau eines Stufenschalters zu vermeiden, legt man einen verstellbaren Kontakt unmittelbar an die Wicklung und läßt ihn in bekannter Weise als Schleifkontakt auf den. blanken Drähten entlang gleiten. Hierdurch wird der Sprung in der Regulierung der Windungszahl auf ein Minimum, und zwar je nach der Wicklungsart bis zu einer einzigen Windung, herabgesetzt. Der Übergang von einer zur anderen Windungszahl hat nun in jedem Falle, wenn er ohne Unterbrechung geschehen soll, zur Folge, daß eine größere oder geringere Zahl von Windungen kurzgeschlossen wird. Der hierdurch entstehende Kurzschlußstrom erreicht leicht bedenkliche Größe.- Zwar kann man durch Verdoppelung des Schleifkontaktes und Anordnung eines Widerstandes zwischen den beiden Teilen nach Art der Zellenschalter den Kurzschlußstrom herabdrücken, doch dürfte diese Anordnung im allgemeinen wegen des geringen Abstandes der Windungen Schwierigkeiten machen.Device on transformers or reactors for continuous control with sliding contact on bare winding and magnetic shunt to reduce the 1 short-circuit currents. In order to achieve as much as possible with regulating transformers to achieve constant change in the number of turns and at the same time the complicated structure To avoid a multiple switch, an adjustable contact is placed directly to the winding and leaves it in a known manner as a sliding contact on the. bare Slide along wires. This makes the jump in the regulation of the number of turns to a minimum, depending on the type of winding up to a single turn, degraded. The transition from one to the other number of turns now has in each case, if it is to take place without interruption, the consequence is that a greater or lesser one Number of turns is short-circuited. The resulting short-circuit current easily reaches a questionable size - you can by doubling the sliding contact and arranging a resistor between the two parts in the manner of a cell switch reduce the short-circuit current, but this arrangement is generally due to the small spacing of the turns make difficulties.

Weiter ist als Mittel zur Herabsetzung des Kurzschlußstromes vorgeschlagen worden, für die Kraftlinien einen um die kurzgeschlossenen Windungen außen herumführenden Nebenschluß von möglichst geringem magnetischen Widerstand vorzusehen, so daß der Strom in den kurzgeschlossenen Windungen durch Selbstinduktion zu unschädlicher Größe herabgedrückt wird. Der magnetische Kurzschluß war beweglich angeordnet.It is also proposed as a means of reducing the short-circuit current for the lines of force one leading around the short-circuited windings on the outside Provide shunt of the lowest possible magnetic resistance, so that the Current in the short-circuited windings becomes harmless due to self-induction Size is depressed. The magnetic short circuit was arranged to be movable.

Bei diesen Einrichtungen ist aber der Luftzwischenraum zwischen festen und bewegten Teilen der Kraftlinienbahn, wenn er auch noch so gering sein mag, störend. Die Wirkung wird dadurch geschwächt, auch kann Brummen des Apparates auftreten.In these facilities, however, the air gap between fixed and moving parts of the power line path, however small it may be, disturbing. The effect is weakened as a result, and the device can also hum.

Diese Schwierigkeit wird gemäß der Erfindung dadurch behoben, daß der magnetische N ebenschluß unbeweglich ist. In diesem Falle muß er nicht nur an einer einzigen Stelle, sondern über die ganze Länge der Wicklung hin vorhanden sein.This difficulty becomes apparent in accordance with the invention through this fixed that the magnetic shunt is immobile. In this case he must not just at a single point, but over the entire length of the winding to be available.

In der Abbildung ist ein Ausführungsbeispiel der Erfindung dargestellt.In the figure, an embodiment of the invention is shown.

e bedeutet den Eisenkern, s den Schleifkontakt. Die Netzklemmen befinden sich bei n, während bei y die regulierbare Spannung abgenommen wird. Der magnetische Kurzschluß wird gebildet von den außerhalb der in Löchern L verlegten Wicklung w befindlichen Eisenteilen, die mit Bezug auf ihre magnetische Kurzschlußwirkung mit k bezeichnet sind. Über die an der einen Seite des Kernes verlaufenden Wicklungsteile bewegt sich der Schleifkontakt s.e means the iron core, s the sliding contact. The mains terminals are located at n, while the adjustable voltage is taken from y. The magnetic short circuit is formed by the iron parts located outside the winding w laid in holes L , which iron parts are denoted by k with reference to their magnetic short circuit effect. The sliding contact s moves over the winding parts running on one side of the core.

Es steht nichts im Wege, dem Eisenkörper an Stelle der Ringform die Form eines Rechteckes zu geben, auf dessen Langseiten die Wicklung aufgebracht ist, so daß die abnehmenden Bürsten eine geradlinige Bewegung ausführen können.Nothing stands in the way of the iron body instead of the ring shape To give the shape of a rectangle, on the long sides of which the winding is applied, so that the descending brushes can move in a straight line.

Die Selbstinduktion der Kurzschlußwicklung wird um so größer, die gewünschte Wirkung also um so stärker, je größeren Querschnitt die außerhalb der Windung befindlichen Eisenteile k den Kraftlinien bieten. Die Vergrößerung der Eisenmasse ist nebenbei auch zur Herabsetzung der Übertemperatur erwünscht.The self-induction of the short-circuit winding is the greater, the The greater the cross-section outside of the, the stronger the desired effect Winding iron parts k offer the lines of force. The increase in the mass of iron is also desirable to reduce the overtemperature.

Gemäß der Abbildung ist der Gesamtquerschnitt außerhalb und innerhalb der Windung gleich groß genommen. Bei dieser Bemessung bleibt der magnetische Widerstand für die gesamte Wicklung beim Kurzschluß einer Windung ziemlich unverändert. Die neue Kur zschlußsicherung kann auch für Drosselspulen Verwendung finden, bei denen zur Einstellung der Drosselwirkung ein Kontakt über die Windungen bewegt .und dabei ein Kurzschluß einzelner Windungen herbeigeführt wird.As shown in the figure, the total cross-section is outside and inside the turn taken the same size. With this dimensioning, the magnetic resistance remains pretty unchanged for the entire winding in the event of a short circuit in one turn. the new short circuit fuse can also be used for reactors where To adjust the throttling effect, a contact is moved across the windings. and at the same time a short circuit of individual turns is brought about.

Claims (1)

PATENT-ANSPRUCII: Einrichtung an Transformatoren oder Drosselspulen für stetige Regelung mit auf blanker Wicklung gleitendem Schleifkontakt und magnetischem Nebenschluß zur Verminderung von Kurzschlußströmen, dadurch gekennzeichnet, daß über die ganze Länge der Wicklung, außerhalb dieser, zusammenhängende Eisenteile als magnetischer Nebenschluß ruhend angeordnet sind, welche mit dem das Innere der Wicklung erfüllenden Eisenkern eine geschlossene Masse bilden. PATENT-ANSPRUCII: Device on transformers or choke coils for continuous regulation with sliding contact sliding on bare winding and magnetic shunt to reduce short-circuit currents, characterized in that over the entire length of the winding, outside of this, connected iron parts are arranged as a magnetic shunt, which form a closed mass with the iron core filling the inside of the winding.
DES59947D 1922-05-27 1922-05-27 Device on transformers or choke coils for continuous regulation with sliding contact on bare winding and magnetic shunt to reduce short-circuit currents Expired DE432171C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES59947D DE432171C (en) 1922-05-27 1922-05-27 Device on transformers or choke coils for continuous regulation with sliding contact on bare winding and magnetic shunt to reduce short-circuit currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES59947D DE432171C (en) 1922-05-27 1922-05-27 Device on transformers or choke coils for continuous regulation with sliding contact on bare winding and magnetic shunt to reduce short-circuit currents

Publications (1)

Publication Number Publication Date
DE432171C true DE432171C (en) 1926-07-31

Family

ID=7493711

Family Applications (1)

Application Number Title Priority Date Filing Date
DES59947D Expired DE432171C (en) 1922-05-27 1922-05-27 Device on transformers or choke coils for continuous regulation with sliding contact on bare winding and magnetic shunt to reduce short-circuit currents

Country Status (1)

Country Link
DE (1) DE432171C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4975672A (en) * 1989-11-30 1990-12-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration High power/high frequency inductor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4975672A (en) * 1989-11-30 1990-12-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration High power/high frequency inductor

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