DE349657C - Device for the regulation of multi-phase rectifiers with six or more phases on the secondary side of the main transformer and a zero point choke coil - Google Patents
Device for the regulation of multi-phase rectifiers with six or more phases on the secondary side of the main transformer and a zero point choke coilInfo
- Publication number
- DE349657C DE349657C DENDAT349657D DE349657DD DE349657C DE 349657 C DE349657 C DE 349657C DE NDAT349657 D DENDAT349657 D DE NDAT349657D DE 349657D D DE349657D D DE 349657DD DE 349657 C DE349657 C DE 349657C
- Authority
- DE
- Germany
- Prior art keywords
- choke coil
- phases
- zero point
- secondary side
- main 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Description
Es ist bereits bekannt, bei Mehrphasengleichrichtern mit sechs oder mehr Phasen auf der sekundären Seite des Haupttransformators eine dreiphasige Nullpunkts-Drosselspule anzuwenden, zum Zweck der besseren Ausnutzung der sekundären Transformatorwicklungen. Ferner ist bekannt, die Nullpunkts-Drosselspule für die Spannungsregelung zu verwenden.It is already known in polyphase rectifiers with six or more phases on the use a three-phase zero point choke coil on the secondary side of the main transformer, for the purpose of better utilization of the secondary transformer windings. Further it is known to use the zero point choke coil for voltage regulation.
Gemäß der Erfindung erfolgt die Spannungsregelung durch stufenweises Zu- oder Abschalten
von Windungen an der erwähnten Drosselspule. Zu diesem Zweck wird die Nullpunkts-Drosselspule
mit Anzapfungen versehen und diese Anzapfungen wie bei Zellenschaltern mit Kontakten
eines Regulierorgans verbunden. Dabei werden nebeneinanderliegende Kontakte verschiedenen
Phasen zugeordnet und auf die Kontakte für die Stromableitung ein Schleifkontakt
aufgesetzt, welcher so breit ist, daß er mindestens drei nebeneinanderliegende, an verschiedene
Phasen der Drosselspule angeschlossene Kontakte des Regulierorgans gleichzeitig überdeckt.
In der Abbildung bezeichnet S1 die Primärwicklung, s2 die Sekundärwicklung des Haupttransformators
mit den drei Nullpunktsanschlüssen O1 bis O3. Die Außenklemmen 1 bis 6
stehen mit den entsprechend numerierten Anoden des Gleichrichters g in Verbindung. Von
den drei Nullpunkten der sekundären Wicklung O1 bis O3 führen Leitungen zu einer dreiphasigen
Drosselspule d mit den Anzapfungen C1 bis Cn.
Die Kontaktbahn α ist nach Art der Zellenschalter linear angeordnet und in der aus der
Abbildung ersichtlichen Weise mit den Anzapfungen der Drosselspule C1 bis c„ verbunden.
Der Gleitkontakt b schließt jeweils drei Kontakte kurz und ermöglicht in bekannter Weise
die Erzielung einer großen Stufenzahl bei einer verhältnismäßig geringen Zahl der Anzapfungen
C1 bis cn. Bei der gewählten Schaltung ergeben
die Gleichkontakte b den Minuspol und die Kathode k des Gleichrichters den Pluspol der
Gleichstromquelle.According to the invention, the voltage regulation is carried out by gradually connecting or disconnecting turns on the aforementioned choke coil. For this purpose, the zero point choke coil is provided with taps and these taps are connected to contacts of a regulating element, as is the case with cell switches. In this case, adjacent contacts are assigned to different phases and a sliding contact is placed on the contacts for current dissipation, which is so wide that it simultaneously covers at least three adjacent contacts of the regulating element connected to different phases of the choke coil.
In the figure, S 1 denotes the primary winding, s 2 the secondary winding of the main transformer with the three zero point connections O 1 to O 3 . The outer terminals 1 to 6 are connected to the correspondingly numbered anodes of the rectifier g . From the three zero points of the secondary winding O 1 to O 3 , lines lead to a three-phase choke coil d with the taps C 1 to C n . The contact track α is arranged linearly in the manner of the cell switch and is connected to the taps of the choke coil C 1 to c ″ in the manner shown in the figure. The sliding contact b short-circuits three contacts in each case and, in a known manner, enables a large number of stages to be achieved with a relatively small number of taps C 1 to c n . In the selected circuit, the DC contacts b result in the negative pole and the cathode k of the rectifier the positive pole of the direct current source.
Die beschriebene Einrichtung ermöglicht'somit auch bei sechs- oder mehrphasigen Gleichrichtern die Anwendung einer dreiphasigen Regulier-Drosselspule auf der sekundären Seite und eines linear angeordneten Zellenschalters, was bis jetzt nur in Verbindung mit einem dreiphasigen Gleichrichter bekannt war.The device described thus also enables six-phase or multi-phase rectifiers the use of a three-phase regulating choke coil on the secondary side and a linearly arranged cell switch, which until now was only known in connection with a three-phase rectifier.
Soweit derartige Regulierschaltungen auch bei Sekundär-Sechsphasengleichrichter-Transformatoren benutzt wurden, erstreckt sich deren Anwendung lediglich auf die Hochvoltwicklung, was mit Rücksicht auf die dort herrschende Hochspannung gewisse Unzuträglichkeiten zur Folge hat.So much for regulating circuits of this type, even with secondary six-phase rectifier transformers were used, their application extends only to the high-voltage winding, which, in view of the high voltage prevailing there, certain inconveniences Consequence.
Die Neuerung läßt sich auch sinngemäß bei einem Gleichrichtertransformator mit mehr als sechs Phasen anwenden, wobei die Phasenzahl der Drosselspulen nur die Hälfte der Phasenzahl auf der sekundären Seite des Haupttransformators beträgt.The innovation can also be applied to a rectifier transformer with more than Apply six phases, with the number of phases of the inductors being only half the number of phases on the secondary side of the main transformer.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE349657T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE349657C true DE349657C (en) | 1922-03-06 |
Family
ID=6258781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT349657D Expired DE349657C (en) | Device for the regulation of multi-phase rectifiers with six or more phases on the secondary side of the main transformer and a zero point choke coil |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE349657C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1149812B (en) * | 1959-06-23 | 1963-06-06 | Josef Jungers | DC excited choke |
-
0
- DE DENDAT349657D patent/DE349657C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1149812B (en) * | 1959-06-23 | 1963-06-06 | Josef Jungers | DC excited choke |
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