DE922894C - Direct current pre-magnetized choke coil, especially for three-phase current - Google Patents

Direct current pre-magnetized choke coil, especially for three-phase current

Info

Publication number
DE922894C
DE922894C DEA11751D DEA0011751D DE922894C DE 922894 C DE922894 C DE 922894C DE A11751 D DEA11751 D DE A11751D DE A0011751 D DEA0011751 D DE A0011751D DE 922894 C DE922894 C DE 922894C
Authority
DE
Germany
Prior art keywords
direct current
choke coil
legs
phase
leg
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
DEA11751D
Other languages
German (de)
Inventor
Hans Dipl-Ing Gugel
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.)
AEG AG
Original Assignee
AEG 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 AEG AG filed Critical AEG AG
Priority to DEA11751D priority Critical patent/DE922894C/en
Application granted granted Critical
Publication of DE922894C publication Critical patent/DE922894C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F29/146—Constructional details

Description

Vorgeschlagen wurde eine gleichstromvormagnetisierte Drosselspule, deren Kern aus drei normalen bewickelten und zwei stärker dimensionierten unbewickelten Schenkeln besteht, wobei die erstgenannten Schenkel sowohl die Drehstrom- als auch die in Dreieck geschaltete Gleichstromwicklung tragen. Zwecks Oberwellenausscheidung ist der Kern ferner in Richtung der Schenkelflucht in zwei gleiche Hälften aufgespalten, wobei sichA direct current bias has been proposed Choke coil, the core of which consists of three normal wound and two more heavily dimensioned unwound Legs consists, the first-mentioned legs both the three-phase as well as the delta-connected DC winding wear. For the purpose of eliminating harmonics, the core is also in the direction of the leg alignment split in two equal halves, being

ίο die Gleichstromwicklung auf beide Hälften verteilt. Der Gleichfluß ist hierbei in aller« drei bewickelten Schenkeln gleichgerichtet und- schließt sich über die Hilfsschenkel, deren Ouerschnittssumme annähernd gleich der Summe der Querschnitte der drei Hauptschenkel istίο the DC winding distributed over both halves. The constant flow is here in the same direction in all three wound legs and closes over the auxiliary legs, their cross-section sum is approximately equal to the sum of the cross sections of the three main legs

An diesem für die Hilfsschenkel aufgewendeten Eisen kann nun noch gespart werden, wenn die Gleichstromwicklungen je Doppelschenkel erfinr dungsgemäß in bestimmter Reihenfolge so miteinander verbunden sind, daß die Gleichflüsse der einzelnen Schenkel, auch senkrecht zur Schenkelfiucht gesehen, jeweils verschiedene Richtungen aufweisen. Damit kann ein Hauptschenkel als Rückschluß eines anderem aufgefaßt werden. Man erspart somit einmal einen Hilfsschenkel vollständig und braucht weiterhin dem anderen nur den gleichen Querschnitt wie den Hauptschenkeln zu geben. Zwei Drittel des für die Hilfsschenkel bisher aufgewendeten Eisens können also erspart werden, ohne daß sich an den Eigenschaften der Drosselspule etwas ändert.This iron used for the auxiliary legs can now be saved if the DC windings per double leg according to the invention in a certain order with one another are connected that the constant fluxes of the individual legs, also perpendicular to the leg evacuation seen, each have different directions. This means that a main limb can be used as a Conclusion of another. One saves an auxiliary leg completely and still needs the other only the same cross-section as the main legs admit. Two thirds of the iron previously used for the auxiliary legs can thus be saved without changing anything in the properties of the inductor.

Ein Ausführungsbeispiel nach der Erfindung ist in den Abb. 1 bis 3 der Zeichnung dargestellt. Die Doppelschenkel 1, 3 und 4 mögen die Wicklungen 5 tragen. Infolge der erfindungsgemäßen Schaltung der Gleichstromwicklung nach Abb. 3 erhalten die Gleichflüsse der einzelnen Schenkel 1 bis 4 jeweils verschiedene Richtungen, so daß ein Hauptschenkel als Rückschluß eines- anderen dient, wie dies in Abb. ι und 2 angedeutet worden ist.An embodiment according to the invention is shown in Figs. 1 to 3 of the drawing. the Double legs 1, 3 and 4 may carry the windings 5. As a result of the circuit according to the invention the direct current winding according to Fig. 3 receives the direct fluxes of the individual legs 1 to 4 respectively different directions, so that one main leg serves as the inference of another, as shown in Fig. Ι and 2 has been indicated.

Diese Schaltung und Kernanordnung ergibt sehr einfache gleichstromvormagnetisierte Drosselspulen für jedes Mehrphasensystem.This circuit and core arrangement results in very simple DC-biased choke coils for any multi-phase system.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Gleichstromvormagnetisierte Drosselspule, insbesondere für Dreiphasenistrom, deren Kern in Richtung der Schenkelflucht in zwei gleiche Hälften aufgespalten ist, mit drei sowohl die Drehstrom- als auch die in Dreieck geschaltete Gleichstromwicklung tragenden Schenkeln, wobei die Gleichstromwicklung auf beide Hälften derart verteilt ist, daß eine Oberwellenausscheidung stattfindet, dadurch gekennzeichnet, daß die Gleichstromwicklungen je Doppelschenkel in einer ganz bestimmten Reihenfolge so miteinander verbunden sind, daß die Gleichflüsse der einzelnen Schenkel, auch senkrecht zur Schenkelflucht gesehen, jeweils verschiedene Richtungen aufweisen.Direct current biased choke coil, especially for three-phase current, its core is split in the direction of the leg alignment in two equal halves, with three both the Three-phase as well as the delta-connected direct current winding supporting legs, wherein the direct current winding is distributed over both halves in such a way that harmonics are eliminated takes place, characterized in that the direct current windings per double leg in a very specific Sequence are linked so that the constant flows of the individual legs, too seen perpendicular to the leg alignment, each have different directions. Hierzu 1 Blatt Zeichnungen1 sheet of drawings 9583 1.559583 1.55
DEA11751D 1938-02-19 1938-05-18 Direct current pre-magnetized choke coil, especially for three-phase current Expired DE922894C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA11751D DE922894C (en) 1938-02-19 1938-05-18 Direct current pre-magnetized choke coil, especially for three-phase current

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE208247X 1938-02-19
DEA11751D DE922894C (en) 1938-02-19 1938-05-18 Direct current pre-magnetized choke coil, especially for three-phase current

Publications (1)

Publication Number Publication Date
DE922894C true DE922894C (en) 1955-01-27

Family

ID=25760402

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA11751D Expired DE922894C (en) 1938-02-19 1938-05-18 Direct current pre-magnetized choke coil, especially for three-phase current

Country Status (1)

Country Link
DE (1) DE922894C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962362A (en) * 1989-03-30 1990-10-09 Whittaker Richard W Multi-magnetic field plural core transformer
US5177460A (en) * 1990-01-04 1993-01-05 Dhyanchand P John Summing transformer for star-delta inverter having a single secondary winding for each group of primary windings
US5355296A (en) * 1992-12-10 1994-10-11 Sundstrand Corporation Switching converter and summing transformer for use therein

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962362A (en) * 1989-03-30 1990-10-09 Whittaker Richard W Multi-magnetic field plural core transformer
US5177460A (en) * 1990-01-04 1993-01-05 Dhyanchand P John Summing transformer for star-delta inverter having a single secondary winding for each group of primary windings
US5355296A (en) * 1992-12-10 1994-10-11 Sundstrand Corporation Switching converter and summing transformer for use therein

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