DE177676C - - Google Patents
Info
- Publication number
- DE177676C DE177676C DE1905177676D DE177676DA DE177676C DE 177676 C DE177676 C DE 177676C DE 1905177676 D DE1905177676 D DE 1905177676D DE 177676D A DE177676D A DE 177676DA DE 177676 C DE177676 C DE 177676C
- Authority
- DE
- Germany
- Prior art keywords
- branch
- branches
- transformer
- capacitor
- voltage
- 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 - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 9
- 230000001939 inductive effect Effects 0.000 description 5
- 230000001808 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 241000189705 Dunedin group Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001404 mediated Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
- H02M5/12—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion of voltage or current amplitude only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
— JVIl 77676-KLASSE 21 d. GRUPPE- JVIl 77676 CLASS 21 d. GROUP
in BERLIN.in Berlin.
Zusatz zum Patente 163083 vom 12. November 1904.Addendum to patent 163083 of November 12, 1904.
Patentiert im Deutschen Reiche vom 6. September 1905 ab. Längste Dauer: 11. November 1919.Patented in the German Empire on September 6, 1905. Longest duration: November 11, 1919.
Im Hauptpatent 163083 ist eine Einrichtung für verzweigte Wechselstromnetze angegeben, durch die verhütet wird, daß der Spannungsabfall, den die Belastungsschwankungen eines der Netzzweige in den Stromerzeugern hervorrufen, auf die anderen Netz^ zweige übertragen wird. Diese Einrichtung hat den Nachteil, daß bei beispielsweise zwei Zweigen die Entlastung eines derselben einen induktiven Abfall in dem anderen Zweige ergibt. Wird nämlich ein Zweig entlastet, so wirkt die Wicklung im anderen Zweig als Drosselspule. Dadurch wird in diesem Zweig die Größe und Phase der Spannung verändert, was in Mehrphasennetzen zur Unsymmetrie führt und die Motoren ungünstig beeinflußt. Um dem Kupplungstransformator diese Eigenschaft der veränderlichen Selbstinduktion zu nehmen, wird nach der vorliegenden Erfindung in diejenigen Zweige, deren Spannung und Phase durch die Veränderung in den anderen Zweigen nicht beeinflußt werden sollen, in Reihe mit der Transformatorwicklung ein Kondensator eingeschaltet. Es sei bemerkt, daß schon vor längerer Zeit vorgeschlagen wurde, bei Transformatoren, welche primär mit konstanter Stromstärke gespeist werden, sekundär einen Kondensator vorzuschalten, um den Sekundärkreis bei verschiedener Belastung desselben mit konstanter Spannung zu speisen. Im Gegensatz zu dieser Anordnung vermittelt bei der vorstehend beschriebenen der Transformator überhaupt nicht die Speisung eines der Zweige, welche ja parallel an das Netz angeschlossen sind, sondern dient zur Kompensierung der Spannungsänderungen in dem einen Zweige, welche sonst bei schwankender Belastung des· anderen Zweiges infolge des Generatorabfalles" entstehen würden, und der Kondensator dient zur Kompensierung des induktiven Spannungsabfalles, welcher in der mit ihm in Reihe liegenden Transformatorwicklung bei Stromlosigkeit der anderen auftritt.The main patent 163083 is a device for branched alternating current networks indicated by which it is prevented that the voltage drop caused by the load fluctuations cause one of the network branches in the power generators, to the other network ^ branches is transferred. This device has the disadvantage that, for example, two Branches the discharge of one of these results in an inductive drop in the other branch. If one branch is relieved, the winding in the other branch acts as a choke coil. This will result in this branch the size and phase of the voltage changes, which leads to asymmetry in multi-phase networks leads and adversely affects the engines. To the clutch transformer To take this property of mutable self-induction is after the present Invention in those branches whose voltage and phase are not influenced by the change in the other branches are to be switched on in series with the transformer winding a capacitor. It should be noted that it was proposed a long time ago that transformers which are primarily fed with a constant current intensity, a secondary capacitor is connected upstream to create the secondary circuit to feed the same with constant voltage at different loads. In contrast to this arrangement mediated in the case of the above described the transformer is not at all feeding one of the branches, which are connected in parallel to the network, but rather serves for compensation the voltage changes in one branch, which otherwise result from fluctuating loads in the other branch of the generator drop "would arise, and the capacitor is used to compensate the inductive voltage drop that occurs in the transformer winding in series with it occurs when the other is not powered.
In Fig. ι ist e der beispielsweise zweiphasige Stromerzeuger. Der Zweig b schwankender Belastung liegt an Phase I und speist eine Bahn, während der zu schützende Zweig c Lampen / und Motoren m speisen möge. Die Motoren hängen gleichzeitig auch an Phase II. ρ und s sind die beiden Wicklungen des Kupplungstransformators. Wenn nun der Bahnzweig b ganz oder teilweise entlastet wird, so würde die Wicklung s eine Drosselwirkung ausüben. Die Spannung an den Lampen I und an der Netzphase I würde der Größe und Phase nach verändert werden.In Fig. Ι e is the two-phase power generator, for example. Branch b with fluctuating load is on phase I and feeds a path, while branch c to be protected may feed lamps / and motors m. The motors are also connected to phase II at the same time. Ρ and s are the two windings of the coupling transformer. If the path b is completely or partially relieved, the winding s would exert a throttling effect. The voltage at the lamps I and at the network phase I would be changed in terms of size and phase.
Wenn aber hinter die Wicklung s ein Kondensator k geschaltet ist, dann wird ein Spannungszuwachs in diesem Kondensator erzeugt, welcher den Abfall in s aufhebt. Das System des Kupplungstransformators mit Kondensator ist mit Bezug auf den Zweige für alle Belastungszustände der Zweige b und c ungefähr induktionsfrei. Der im Zweiget auftretende Strom gibt diejenige Zusatzspannung, welche dem Spannungsabfall des Generators das Gleichgewicht hält. In Fig. 5 ist E die Generatorspannung im unbelasteten Zustand. Tritt in dem Zweige b ein beispielsweise rein induktiver Strom J2 auf, so sinkt die Generatorspannung auf E1. Durch die Wicklung ρ wird im Zweige c eine Zusatzspannung Es erzeugt, so daß die resultierende Spannung Ec im Netzzweige c wieder ungefähr gleich E ist. Wenn b unbelastet ist, wird der Strom J1 des Zweiges c in der Wicklung s den Ohmschen Abfall 0-1 und den induktiven Abfall 1-2 ergeben und im Kondensator k den Spannungszuwachs 2-1 hervorrufen. If, however, a capacitor k is connected behind the winding s , then a voltage increase is generated in this capacitor, which cancels out the drop in s. The system of the coupling transformer with capacitor is approximately induction-free with respect to the branches for all load conditions of branches b and c. The current occurring in the branch gives the additional voltage which keeps the voltage drop of the generator in equilibrium. In Fig. 5, E is the generator voltage in the unloaded state. If, for example, a purely inductive current J 2 occurs in branch b , the generator voltage drops to E 1 . The winding ρ generates an additional voltage E s in branch c , so that the resulting voltage E c in network branch c is approximately equal to E again. When b is unloaded, the current J 1 of the branch c will result in the ohmic drop 0-1 and the inductive drop 1-2 in the winding s and cause the voltage increase 2-1 in the capacitor k.
Es ist möglich, den Kondensator k auch so zu bemessen, daß er nicht nur den induktiven Abfall in s aufhebt, sondern diesen überwiegt. Man kann auch in den Zweig b schwankender Belastung einen Kondensator legen (Fig. 2); dieser bewirkt dann eine Kompoundierung in dem Schwankungen unterworfenen Zweige in der an sich bekannten Weise; dieser Kondensator wird auch dann gut wirken, wenn gelegentlich Schwankungen im anderen Zweige (c) stattfinden. Wenn mehr als zwei Netzzweige durch einen Transformator gekuppelt sind, so kann jeder der Zweige einen Kondensator in Reihe mit der Transformatorwicklung erhalten (Fig. 3). Statt einen Kondensator unmittelbar in seinen Stromkreis zu schalten, kann man ihn auch in der in anderen Fällen üblichen Weise unter Vermittlung eines Transformators anschließen (h in Fig. 4).It is possible to dimension the capacitor k in such a way that it not only cancels out the inductive drop in s , but outweighs it. A capacitor can also be placed in branch b of fluctuating load (FIG. 2); this then brings about a compounding in the branch subject to fluctuations in the manner known per se; this capacitor will also work well if there are occasional fluctuations in the other branch (c) . If more than two network branches are coupled by a transformer, each of the branches can have a capacitor in series with the transformer winding (Fig. 3). Instead of connecting a capacitor directly to its circuit, it can also be connected in the usual way in other cases with the intermediary of a transformer (h in FIG. 4).
_._.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT30561D AT30561B (en) | 1905-09-05 | 1906-12-13 | Circuit device for the distribution of alternating current in a branched network in which one of the branches is exposed to load fluctuations. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE177676C true DE177676C (en) |
Family
ID=442125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1905177676D Expired - Lifetime DE177676C (en) | 1905-09-05 | 1905-09-05 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE177676C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2811099A1 (en) * | 1978-03-01 | 1979-09-20 | Gni Energetichesky Inst | Voltage controller and reactive power compensator - has extra capacitor in distribution line between grounded capacitor and grounded inductor |
-
1905
- 1905-09-05 DE DE1905177676D patent/DE177676C/de not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2811099A1 (en) * | 1978-03-01 | 1979-09-20 | Gni Energetichesky Inst | Voltage controller and reactive power compensator - has extra capacitor in distribution line between grounded capacitor and grounded inductor |
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