DE461449C - Use of the arrangement for suppressing the harmonics of three times the frequency in alternating current circuits according to patent 436358, in particular by means of a tertiary triangular winding, for transformers of high-voltage lines - Google Patents

Use of the arrangement for suppressing the harmonics of three times the frequency in alternating current circuits according to patent 436358, in particular by means of a tertiary triangular winding, for transformers of high-voltage lines

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Publication number
DE461449C
DE461449C DES71294D DES0071294D DE461449C DE 461449 C DE461449 C DE 461449C DE S71294 D DES71294 D DE S71294D DE S0071294 D DES0071294 D DE S0071294D DE 461449 C DE461449 C DE 461449C
Authority
DE
Germany
Prior art keywords
frequency
tertiary
transformers
arrangement
harmonics
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
DES71294D
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Publication date
Priority to DES71294D priority Critical patent/DE461449C/en
Application granted granted Critical
Publication of DE461449C publication Critical patent/DE461449C/en
Expired legal-status Critical Current

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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
    • H01F27/38—Auxiliary core members; Auxiliary coils or windings
    • H01F27/385—Auxiliary core members; Auxiliary coils or windings for reducing harmonics

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

Description

Verwendung der Anordnung zur Unterdrückung der Oberwellen dreifacher Frequenz in Wechselstromkreisen nach Patent 436358, insbesondere mittels einer tertiären Dreieckswicklung, für Transformatoren von Hochspannungsleitungen. Das Hauptpatent enthält eine Anordnung zur Unterdrückung der Oberwellen dreifacher Frequenz in Wechselstromkreisen mittels Transformatoren, die eine Dreieckswicklung entweder als Sekundär- oder .als zusätzliche Hilfswicklung tragen. Um in dem Transformator die Oberwellen dreifacher Frequenz möglichst vollkommen zu unterdrücken, sind in ds;e sekundäre :oder tertiäre Dreieckswicklung Kondensatoren eingeschaltet, die die Selbstinduktlon des Dreieckkreises für Oberströme der dritten Harmonischen ganz ,oder teilweise aufheben.Using the arrangement to suppress the triple harmonics Frequency in AC circuits according to patent 436358, in particular by means of a tertiary Delta winding, for transformers of high voltage lines. The main patent contains an arrangement for the suppression of the triple frequency harmonics in AC circuits by means of transformers that have a delta winding either as a secondary or as a carry additional auxiliary winding. To triple the harmonics in the transformer Frequency to be suppressed as completely as possible are in ds; e secondary: or tertiary Triangle winding capacitors switched on, which the self-induction of the triangle circle for upper currents of the third harmonic completely or partially cancel.

Die vorliegende Erfindung betrifft die Verwendung dieser Anordnung, insbesondere der mit einer tertiären Dreieckswicklung, für Transformationen von Hochspannungsleitungen mit geerdetem Nullpunkt. Die Erdung des Nullpunktes von Hochspannungsleitungen hat bekanntlich den Vorteil, daß die Spannung der Freileitung gegenüber der Erde auch bei .einem einphasigen Kurzschluß nicht ansteigt, was bei. Freileitungen mit urgeerdetem Nullpunkt in erheblichem Maße eintritt. Nachdem nun bei Ho,chspannungsleifmigen mit zao ooo Volt verketteter Spannung oder mit noch höherer Spannung die Isolierung die hauptsächlichsten Schwierigkeiten v&ursaäht, so erweist sich für derartig hohe Spannungen die Erdung des Nullpunktes als notwendig.The present invention relates to the use of this arrangement, especially the one with a tertiary triangular winding, for transformations of High-voltage lines with a grounded zero point. The grounding of the zero point of high voltage lines is known to have the advantage that the voltage of the overhead line compared to the earth even with .a single-phase short circuit does not increase, which is the case with. Overhead lines with occurs to a considerable extent with the originally grounded zero point. After now at Ho, chspannungsleifmigen with zao ooo volts linked voltage or with an even higher voltage the insulation the chief difficulties are anticipated, it turns out to be such high voltages the grounding of the zero point as necessary.

Anderseits haben aber geerdete Hochspannungsleitungen den Nachteil., daß sie das Auftreten von Kapazitätsströmnen dreifacher Frequenz zwischen der Hochspannungsleitung und der Erde ermöglichen. Diese Oberströme beeinflussen erstens die Spannung der Freileitung in ungünstiger Weise, außer-dem sind ihre Erdströme ;eine erhebliche Störungsquelle für benachbarte S@chwachstromleitungen. Die Ausrüstung der Transformatoren der Hochspannungsleitung mit einer Dreieckswicklung gemäß dem Hauptpatent, durch die Ströme mit dreifacher Frequenz unterdrückt werden, bringt daher ganz besondere Vorteile mit sich.On the other hand, however, earthed high-voltage lines have the disadvantage., that they prevent the occurrence of capacitance currents of three times the frequency between the high-voltage line and enable the earth. These overcurrents firstly affect the voltage of the Overhead lines in an unfavorable way, besides their earth currents are a considerable one Source of interference for neighboring weak power lines. The equipment of the transformers the high-voltage line with a triangular winding according to the main patent the currents with three times the frequency are suppressed, therefore brings very special Advantages with itself.

In der Zeichnung ist die neue Anordnung an einem Beispiel veranschaulicht. i ist die in Stern geschaltete Primärwicklung des von einem Hochspannungsnetz z gespeisten Transformators. Der Sternpunkt der Primärwicklung ist bei 3 geerdet. q. ist die ebenfalls in Stern geschaltete Siekundäxwicklung, die ein Netz 5 mit niederer Spannung speist. 6 ist eine Tertiärwicklung, in die ein Kondensator 7 und deren drei Phasen in Dreieck geschaltet sind. Der Kondensator ist derart bemessen, daß durch ihn die Streuung der Tertzärwicklung bezüglich der Oberströme dreifacher Frequenz auf einen möglichst kleinen Betrag herabgedrückt wird.The drawing illustrates the new arrangement using an example. i is the star-connected primary winding of the z powered transformer. The star point of the primary winding is grounded at 3. q. is the Siekundäxwick also connected in star, which a network 5 with low voltage feeds. 6 is a tertiary winding in which a capacitor 7 and whose three phases are connected in delta. The capacitor is dimensioned in such a way that that through him the spread of the tertiary winding with respect to the upper currents is threefold Frequency is suppressed to the smallest possible amount.

Claims (1)

PATENTANSPRUCH: Verwendung der Anordnung zur Unterdrückung der Oberwellen dreifacher Frequenz in Wechselstromkreisen nach Patent 436358, insbesondere mittels einer tertiären Dreieckswicklung, für Transformatoren von Hochspannungsleitungen, dadurch gekennzeichnet, daß diese Trausforma.toren in an sich bekannter Weise mit geerdetem Nullpunkt versehen werden. PATENT CLAIM: Use of the arrangement for suppressing the harmonics of three times the frequency in alternating current circuits according to patent 436358, in particular by means of a tertiary triangular winding, for transformers of high-voltage lines, characterized in that these Trausforma.toren are provided with a grounded zero point in a manner known per se.
DES71294D Use of the arrangement for suppressing the harmonics of three times the frequency in alternating current circuits according to patent 436358, in particular by means of a tertiary triangular winding, for transformers of high-voltage lines Expired DE461449C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES71294D DE461449C (en) Use of the arrangement for suppressing the harmonics of three times the frequency in alternating current circuits according to patent 436358, in particular by means of a tertiary triangular winding, for transformers of high-voltage lines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES71294D DE461449C (en) Use of the arrangement for suppressing the harmonics of three times the frequency in alternating current circuits according to patent 436358, in particular by means of a tertiary triangular winding, for transformers of high-voltage lines

Publications (1)

Publication Number Publication Date
DE461449C true DE461449C (en) 1928-06-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DES71294D Expired DE461449C (en) Use of the arrangement for suppressing the harmonics of three times the frequency in alternating current circuits according to patent 436358, in particular by means of a tertiary triangular winding, for transformers of high-voltage lines

Country Status (1)

Country Link
DE (1) DE461449C (en)

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