DE397675C - Process for uninterrupted step switching on transformers using a double reactor - Google Patents

Process for uninterrupted step switching on transformers using a double reactor

Info

Publication number
DE397675C
DE397675C DEA31047D DEA0031047D DE397675C DE 397675 C DE397675 C DE 397675C DE A31047 D DEA31047 D DE A31047D DE A0031047 D DEA0031047 D DE A0031047D DE 397675 C DE397675 C DE 397675C
Authority
DE
Germany
Prior art keywords
taps
transformers
switching
tap
transformer
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
DEA31047D
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Priority to DEA31047D priority Critical patent/DE397675C/en
Priority to CH84925D priority patent/CH84925A/en
Priority to FR504506A priority patent/FR504506A/en
Application granted granted Critical
Publication of DE397675C publication Critical patent/DE397675C/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
    • H01F29/02Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Food-Manufacturing Devices (AREA)
  • Ac-Ac Conversion (AREA)

Description

Verfahren zur unterbrechungslosen Stufenschaltung an Transformatoren mittels Doppeldrosselspule. Es ist bekannt, ben Stufentransformatoren zum unterbrechungslosen Überschalten von einer Stufe zur nächsten eine Doppeldrosselspule zu verwenden, d. h. eine solche, deren Enden an zwei benachbarte Anzapfungen des Transformators angeschlossen werden können, während der Verbrauchsstrom reiner Anzap#ung in der Mitte der Drosselspule entnomnven wird. Die Zahl der Schaltstufen ist darin gleich der um eins verminderten Zahl der Transformatoranzapfungen. Um die Zahl der Schaltstufen ohne Versnehrung der Anzapfungen auf das Doppelte zu vermehren, hat man vorgeschlagen, die Enden der Doppeldrosselspulen nicht nur wie bisher an zlvei benachbarte Transformatoranzapfungen, sondern außerdem auch beide jeweils an ein und dieselbe Anzapfung anzuschließen.Process for uninterrupted tap switching on transformers by means of a double inductor. It is known ben tapped transformers for uninterruptible Switching from one stage to the next to use a double inductor, d. H. one whose ends are connected to two adjacent taps of the transformer can be connected while the consumption stream is pure tapping in the Is removed from the middle of the choke coil. The number of switching steps is the same the number of transformer taps reduced by one. To the number of switching steps to double the taps without damaging the taps, it has been suggested that the ends of the double inductors are not only connected to two neighboring transformer taps, as was previously the case, but also to connect both to one and the same tap.

Aus der Literatur ist zwar schon bekanntgeworden, an einer Stelle des Schaltvorgangs, nämlich behn Übergang von der zweiten Anlaßstufe auf diie dritte; ähnlich wie beten Erfindungsgegenstand mit oder Doppeldrosselspule eine Transformatoranoapfung zu überspringen. Alleünd diese Schaltungsweise trat nur für den Übergang vori der zweiten auf die dritte Schaltstufe ein und wurde dadurch bedingt, daß der ersten Schaltstufe noch eine Stufe vorangestellt war, die den ersten Stromstoß mildern sollte, und die eine viel geringere Zahl von Transformatörwindungen umfaßte. Bei den der zweiten Schaltstufe folgenden Stufen wurde aber die Drosselspule beim Fortschreiben längs der Transforanatoranzapfuungen stets an zwei benachbarte Anzapfungen angeschlossen und daroei wurden ihre Enden jeweilig vertauscht. Der betriebsmäßige Anschluß in der Weise, daß während des ganzen Schhaltvorganges die Enden der Drosselspule in aufeinanderfolgenden Stellungen abwechselnd jeweils an zwei benachbarte Anzapfungen angeschlossen werden, kommt bei der bekannten Schaltung nicht vor, es wird dort also nicht ,durch das einfache Mittel der eigenartigen Fortschaltung der Drosselspule allein eine Verdoppelung der (Schaltstufen erzielt.It has already become known from the literature, at one point in the switching process, namely before the transition from the second starting stage to the third; similar to praying subject matter of the invention with or double inductor to skip a transformer application. All this switching mode only occurred for the transition from the second to the third switching stage and was conditioned by the fact that the first switching stage was preceded by a stage which was intended to reduce the first current surge and which comprised a much smaller number of transformer turns. In the stages following the second switching stage, however, the choke coil was always connected to two adjacent taps when updating along the transformer taps, and its ends were swapped over. The operative connection in such a way that the ends of the choke coil are alternately connected in successive positions of two adjacent taps throughout the Schhaltvorganges, does not occur in the known circuit, it is not there, then, by the simple expedient of the peculiar switching operation of Choke coil alone achieves a doubling of the (switching steps.

Die gleiche Wirkung wird durch das Verfahren nach der Erfindung erzielt. Danach werden die Enden der Doppeldrosselspule nicht nur an zwei .benachbarte Anzapfungen des Stufentransformators, sondern außerdem ohne Vertauschung der Spul'enenden an zwei Anzapfungen angeschlossen, welche nicht benachbart, sondern durch wenigstens eine dazwischenliegende Anzapfung getrennt sind.The same effect is achieved by the method according to the invention. After that, the ends of the double inductor are not only connected to two adjacent taps of the step transformer, but also without interchanging the coil ends two taps connected, which are not adjacent, but through at least an intermediate tap are separated.

,In der Zeichnung ist eine Transformatorphase mit fünf Anzapfungen dargestellt. In der Schaltstufe I (Abb. i) sind die Enden a und b der Doppeldrosselspule an die Anzapfungen i und 2 gelegt. Die zweite Stufe II (Abb. 2) wird durch Umschalten des Spulenendes b von der Anzapfung 2 auf Anzapfung 3 erzielt. Um Schaltstufe III (Abb. 3) zu erhalten, wird das Ende a an die Anzapfung 2 gelegt. Für die Stufe IV entsprechend Abb. d. schließt man das Ende b der Spule an ,die Transformatoranzapfung q. an usf., In the drawing is a transformer phase with five taps shown. In switching stage I (Fig. I) ends a and b of the double inductor are connected to taps i and 2. The second stage II (Fig. 2) is by switching of the coil end b from tap 2 to tap 3 achieved. To switch stage III (Fig. 3), end a is placed on tap 2. For level IV according to fig. d. one connects end b of the coil, the transformer tap q. on etc.

Diese Schaltungsweise hat gegenüber der obenerwähnten bekannten, bei der die Spulenenden unter anderem jeweils an die gleiche Anzapfung gelegt werden, den Vorteil, daß die Anzapfungen niemals mehr als den halben Netzstrom führen, während sie bei dem bekannten Verfahren abwechselnd den halben und den vollen Netzstrom führen und dementsprechend stärker zu bemessen sind.This circuit has compared to the above-mentioned known, at which the coil ends are each connected to the same tap, among other things, the advantage that the taps never carry more than half the mains current while they alternately half and full mains current in the known method lead and are accordingly to be measured more strongly.

Claims (1)

PATENTANSPRUCH: Verfahren zur unterbrechungslosen Stufenschaltung an Transformatoren und zur gleichzeitigen Erreichung einer im Vergleich zur Zahl der Anzapfungen vergrößerten Stufenzahl mittels einer einzigen Doppeldrosselspule, dadurch gekennzeichnet, daß die Enden der Doppeldrosselspule nlicht nur, wie bekannt, an je zwei benachbarte Anzapfungen des Stufentransformators, sondern während des ganzen Schaltvorganges immer albwechselnd an zwei benachbarte und zur Erreichung der zusätzlichen Schaltstufen außerdem ohne Vertauschung der Spulenenden an zwei nicht benachbarte, durch wenigstens eine dazwischenliegende Anzapfung getrennte Anzapfungen des Stufentransformators angeschlossen werden. PATENT CLAIM: Method for uninterrupted tap-change operation on transformers and for the simultaneous achievement of an increased number of taps compared to the number of taps by means of a single double choke coil, characterized in that the ends of the double choke coil only, as is known, at two adjacent taps of the tapped transformer, but during The entire switching process can be connected alternately to two adjacent taps and, to achieve the additional switching stages, also to two non-adjacent taps of the step transformer separated by at least one tap in between, without interchanging the coil ends.
DEA31047D 1918-10-08 1918-10-08 Process for uninterrupted step switching on transformers using a double reactor Expired DE397675C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEA31047D DE397675C (en) 1918-10-08 1918-10-08 Process for uninterrupted step switching on transformers using a double reactor
CH84925D CH84925A (en) 1918-10-08 1919-07-21 Gymnastics bar with longitudinally adjustable handles.
FR504506A FR504506A (en) 1918-10-08 1919-10-02 Method for passing current from one stage of one transformer to another without interruption, by means of a double feedback coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA31047D DE397675C (en) 1918-10-08 1918-10-08 Process for uninterrupted step switching on transformers using a double reactor

Publications (1)

Publication Number Publication Date
DE397675C true DE397675C (en) 1924-07-09

Family

ID=5635654

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA31047D Expired DE397675C (en) 1918-10-08 1918-10-08 Process for uninterrupted step switching on transformers using a double reactor

Country Status (3)

Country Link
CH (1) CH84925A (en)
DE (1) DE397675C (en)
FR (1) FR504506A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621043A (en) * 1949-09-28 1952-12-09 Samuel E Olmstead Push and pull exercising device
DE1198259B (en) * 1962-03-01 1965-08-05 Gert F Koelbel Gymnastics equipment
US4775149A (en) * 1984-04-13 1988-10-04 Wilson Robert M Spring-type exercise device
US5474511A (en) * 1989-05-22 1995-12-12 Dantolan; Harry E. Reciprocating weight exercise device

Also Published As

Publication number Publication date
CH84925A (en) 1920-05-01
FR504506A (en) 1920-07-07

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