DE962002C - Transformer for very high voltage and power with high voltage layer winding rigidly earthed at the star point and additional triangular winding as well as charging current compensation coils provided with core air gap - Google Patents

Transformer for very high voltage and power with high voltage layer winding rigidly earthed at the star point and additional triangular winding as well as charging current compensation coils provided with core air gap

Info

Publication number
DE962002C
DE962002C DES38053A DES0038053A DE962002C DE 962002 C DE962002 C DE 962002C DE S38053 A DES38053 A DE S38053A DE S0038053 A DES0038053 A DE S0038053A DE 962002 C DE962002 C DE 962002C
Authority
DE
Germany
Prior art keywords
high voltage
winding
compensation coils
air gap
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
DES38053A
Other languages
German (de)
Inventor
Dipl-Ing Dr Hugo Roesch
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 AG
Original Assignee
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 AG filed Critical Siemens AG
Priority to DES38053A priority Critical patent/DE962002C/en
Application granted granted Critical
Publication of DE962002C publication Critical patent/DE962002C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/343—Preventing or reducing surge voltages; oscillations
    • H01F27/345—Preventing or reducing surge voltages; oscillations using auxiliary conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Description

Transformator für sehr hohe Spannung und Leistung .Transformer for very high voltage and power.

mit am Sternpunkt starr geerdeter Hochspannungslagenwicklung und zusätzlicher Dreieckswicklung sowie mit Kernluftspalt versehenen Ladestrom-Kompensationsspulen Indem Hauptpatent 957 o59 wurde eine Schaltung für Transformatoren vorgeschlagen, bei der es möglich ist, die sonst bei Vorhandensein einer Dreieckswicklung in einem Transformator mit obersparnnungsseitiger Lagenwicklung und starr geerdetem Sternpunkt auf Grund des Nichtzutsammenfallens der kapazitiven Anfangsverteilung und der streuinduktiven Endvertei,lhxng bei Auftreffen; von. steifen Stoßwellen, zusätzlich auftretenden Auggleiohssehwingungen der Lagenenden gegeneinandler und gegen Erde zu unterdrücken. Die Schaltung bezileht sich darauf, die:` für die Kompensation des Ladestroms :dien am den Transformator angeschlossenen Freileitungen erforderlichen Kompensationsspulen nicht, wie üb: lieh, außerhalb der für deren Anschbuß ausdrücklich vergeseihenen D.reie-ckswilcktun,g, sondern phasenweise innerhalb dieser Wicklung zu schalten und' die drei Klemmen kurzzuschliieBen.with high-voltage layer winding solidly earthed at the star point and additional Triangular winding and charging current compensation coils with a core air gap In the main patent 957 059 a circuit for transformers was proposed, in which it is possible that otherwise in the presence of a triangular winding in one Transformer with layer winding on the upper savings side and rigidly earthed star point due to the non-coincidence of the capacitive initial distribution and the leakage inductive Endvertei, lhxng at impact; from. stiff shock waves, additionally occurring Suppress eye vibration of the layer ends against each other and against the earth. The circuit refers to those: `for the compensation of the charging current: serve Compensation coils required on the overhead lines connected to the transformer not, as usual, outside of those expressly granted for their connection D.reie-ckswilcktun, g, but to switch in phases within this winding and 'short-circuit the three terminals.

Mit Rücksicht auf eine mögliche Belastung der Freileitungen mit deren natürlicher Leistung, in welchem Falle die Kompensationsspulen nicht gebraucht werden, wurde in Weiterentwicklung des Erfindiungs;gediankens vorgeschlagen, die Kompensationsspulen mit veränderlichem Luftspalt auszustatten und ihre Wirkung in bezug auf diie Ladestromkompensationszwecke im Falle der Übertragung der natürlichen Leisture dadurch aufzuheben, daß man bei diesem Betriebszuetand den Lu.ftspalit durch gegenseitige Verschiebung der Säu:lenstummel vollkommen überbrückt und die Spulen im Betrieb beläßt.With regard to a possible load on the overhead lines with their natural power, in which case the compensation coils are not used will, was proposed as a further development of the invention, the compensation coils equipped with a variable air gap and their effect in relation to the charging current compensation purposes in the case of the transfer of natural achievements to be canceled by the fact that one with In this operational state, the air gap by mutual displacement of the column stubs completely bridged and leaves the coils in operation.

Mit der Erfindung wird die Aufgabe verfolgt, eine weiitere vorteilhafte Lösung anzugeben, die es gLeichfalilsgestattet, die Kompensationsspulen bei Übertragung der natürlichen Leistung un.,virksäm zu machen, sie aber trotzdkem im Betrieb zu lassen.The invention aims to provide a further advantageous Specify a solution that also allows the compensation coils during transmission the natural achievement and to make it virksäm, but nevertheless to it in the enterprise permit.

Erfindungsgemäß 'wird unter Aufrechterhaltung des konstanten Luftspaltes der Kompensationsspulen der Kurzschluß an den Klemmen der Dreieckswicklung aufgehoben und mdt Rücksicht auf die Unterdrückung der zusätzlichen Schwingungen in den Lagen der Oberspannungswicklung der günstigste Wert der Induktivität dler im Betsieb belassenen Kompensationsspulen durch Veränd@erung ihrer eingeschalteten Windungszahl eingestellt.According to the invention, while maintaining the constant air gap of the compensation coils, the short circuit at the terminals of the delta winding is canceled and takes care of the suppression of the additional vibrations in the layers the high-voltage winding the most favorable value of the inductance dler left in the sieve Compensation coils set by changing the number of turns that are switched on.

Vorteilhaft bei der erfindüngsgemäßen Anordnung ist, d:aß die im Betrieb bel'assznen Kompens.atIonsspulen einerseits keime Stromkomponente für Kompensationszwecke aufnehmen ünd( andererseits die Anordnung auch hersitellungstechnisch einfach und. vor allem gegemÜber der im Hauptpatent angegebenen Lufspal.tveränderung durch Kermstummelversohiebung billig ist, weil die für die WindungszahIländesung benötigten Mittel allgemein bekannt und in der Praxis bewährt sind..It is advantageous in the arrangement according to the invention that the operation is carried out Bel'assznen Kompens.atIon coils, on the one hand, germs a current component for compensation purposes record and (on the other hand, the arrangement is also simple and technically simple in terms of production. above all against the change in the air gap specified in the main patent due to the displacement of the pinched stub is cheap, because the means required for turning the number of turns are well known and are proven in practice.

Claims (1)

PATENTANSPRUCH: Transformator für sehr hohe Spannung und Leistung mit -am Sternpunkt starr geerdeter Hochspannungslagenwicklung und zusätzlicher Dreieckswicklung sowie mit Kernluftspalt versehenen Ladestromkompensationsspulen, die phasenweise innerhalb der Dreieckswicklung eingeschaltet sind und deren drei vorzugsweise außenliegende Klemmen direkt kurzgeschlossen sind, nach Patent 957 059, dadurch gekennzeichnet, daß bei Übertragung insbesondere der natürlichem Leistung die Kompensationsspulen unter- Aufrechterhaltung ihrer Luftspalte dadurch unwirksam gemacht sind, daß nach Aufhebung des Kurzschlusses an den Klemmen der Dreieckswicklung der mit Rücksicht auf die Unterdrückung der zusätzlichen Schwingungen in den ,Lagen der Oberspannungswichlung günstigste Wert der Induktivität der im Betrieb belassenen Kompensationsspulen durch Veränderung ihrer eingeschalteten Windungszahl in an sich. bekannter Weise einstellbar ist. PATENT CLAIM: Transformer for very high voltage and power with -at the star point rigidly earthed high-voltage layer winding and additional triangular winding as well as charging current compensation coils provided with core air gap, which are switched on in phases within the triangular winding and whose three preferably external terminals are directly short-circuited, according to patent 957 059, characterized that when transmitting, in particular, the natural power, the compensation coils are made ineffective while maintaining their air gaps, that after the short-circuit at the terminals of the triangular winding has been removed, the value of the inductance of the in the, with regard to the suppression of the additional oscillations in the, positions of the high voltage fluctuation, the most favorable value of the in Compensation coils left in operation by changing their switched-on number of turns in itself. is adjustable in a known manner.
DES38053A 1954-03-10 1954-03-10 Transformer for very high voltage and power with high voltage layer winding rigidly earthed at the star point and additional triangular winding as well as charging current compensation coils provided with core air gap Expired DE962002C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES38053A DE962002C (en) 1954-03-10 1954-03-10 Transformer for very high voltage and power with high voltage layer winding rigidly earthed at the star point and additional triangular winding as well as charging current compensation coils provided with core air gap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES38053A DE962002C (en) 1954-03-10 1954-03-10 Transformer for very high voltage and power with high voltage layer winding rigidly earthed at the star point and additional triangular winding as well as charging current compensation coils provided with core air gap

Publications (1)

Publication Number Publication Date
DE962002C true DE962002C (en) 1957-04-18

Family

ID=7482804

Family Applications (1)

Application Number Title Priority Date Filing Date
DES38053A Expired DE962002C (en) 1954-03-10 1954-03-10 Transformer for very high voltage and power with high voltage layer winding rigidly earthed at the star point and additional triangular winding as well as charging current compensation coils provided with core air gap

Country Status (1)

Country Link
DE (1) DE962002C (en)

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