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DE356227C - High-voltage transformer or reactor with an immovable iron body without a magnetic shunt - Google Patents

High-voltage transformer or reactor with an immovable iron body without a magnetic shunt

Info

Publication number
DE356227C
DE356227C DES51001D DES0051001D DE356227C DE 356227 C DE356227 C DE 356227C DE S51001 D DES51001 D DE S51001D DE S0051001 D DES0051001 D DE S0051001D DE 356227 C DE356227 C DE 356227C
Authority
DE
Germany
Prior art keywords
iron
iron body
coils
voltage transformer
magnetic shunt
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
DES51001D
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
Original Assignee
Siemens Schuckertwerke 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 Schuckertwerke AG filed Critical Siemens Schuckertwerke AG
Priority to DES51001D priority Critical patent/DE356227C/en
Application granted granted Critical
Publication of DE356227C publication Critical patent/DE356227C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/346Preventing or reducing leakage fields

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)

Description

Hochspannungstransformator oder Drosselspule mit unbeweglichem Eisenkörper ohne magnetischen Nebenschluß. Bei Transformatoren oder Drosselspulen verlangen die Betriebsverhältnisse häufig eine hohe magnetische Sättigung des Eisenweges. Bei derart hochgesättigten Apparaten tritt indes leicht eine unerwünschte Streuung auf. Gemäß der Erfindung wird dieser Übelstand beiHochspannungstransformatoren oderDrosselspulen mit unbeweglichem Eisenkörper und ohne magnetischen Nebenschluß und mit fest auf,dem Eisenkörper in erheblichem Abstand vom Joche angeordneten Spulen dadurch vermieden, daß die hohe Sättigung an allen denjenigen Stellen erzeugt wird, an denen eine starke Streuung durch d ie Wicklung verhindert wird, d. h. an allen .im Innern der Wicklung liegenden Teil des Eisenweges. Zu diesem Zwecke wird der Eisenquerschnitt in dem von der Wicklung bedeckten Teil des Eisenweges gegenüber dem Querschnitt des nicht von der Wicklung umschlossenen Teiles verkleinert, so daß in ihm eine höhere magnetische Sättigung entsteht.High voltage transformer or reactor with an immovable iron body without magnetic shunt. Ask for transformers or reactors the operating conditions often result in high magnetic saturation of the iron road. In the case of such highly saturated apparatus, however, undesirable scattering easily occurs on. According to the invention, this inconvenience becomes apparent in high voltage transformers or reactors with immovable iron body and without magnetic shunt and with fixed on, the Iron body at a considerable distance coils arranged by the yokes avoided in that the high saturation is generated at all those places, at which a strong scattering by the winding is prevented, d. H. at all . part of the iron path located inside the winding. For this purpose, the Iron cross-section in the part of the iron path covered by the winding opposite the cross-section of the part not enclosed by the winding is reduced, so that a higher magnetic saturation arises in it.

In der Zeichnung sind zwei Ausführungsbeispiele schematisch dargestellt; sie lassen erkennen, in welcher Weise man die gewünschte Wirkung erreichen kann. In Abb. i bedeuten 11 und 12 die Spulen eines Hochspannungstransformators. Das magnetische Feld verläuft durch die Kerne 13 und die Joche 14. Mit Rücksicht auf die Isolation besteht zwischen den Spulen und dem Eisenkern 13 und zwischen den Spulen und dem Joch 1.4 ein erheblicher Abstand. Gemäß der Erfindung ist der Querschnitt der Kerne an allen denjenigen Stellen, die von den Spulen bedeckt sind, geringer als der Querschnitt der übrigen Teile des Eisenweges. Zu diesem Zwecke erhält der Kern die aus der Zeichnung ersichtliche eigenartige Form.Two exemplary embodiments are shown schematically in the drawing; they show how one can achieve the desired effect. In Fig. I, 11 and 12 denote the coils of a high voltage transformer. The magnetic one Field runs through the cores 13 and the yokes 14. With regard to the insulation exists between the coils and the iron core 13 and between the coils and the Yoke 1.4 a considerable distance. According to the invention is the cross section of the cores at all those points that are covered by the coils, less than the cross section the remaining parts of the iron road. For this purpose, the core receives the one from the drawing apparent peculiar shape.

Bei dem Ausführungsbeispiel nach Abb.2 bedeutet 15 die Spule eines Hoch:spann;ungstransformators, dessen Eisenweg sich durch den Kern 16 und die Joche 17 schließt. Die Verringerung des Eisenquerschnittes in dem von der Spule bedeckten Teil des Eisenweges erfolgt hier dadurch, daß -der Eisenkörper im Innern der Spule von Kanälen 18 :durchsetzt ist. Die Kanäle selber können dabei beliebige Form und Zahl haben; man wird sie zweckmäßig so anordnen, daß sie sich gleichmäßig auf den ganzen, hoch zu sättigenden Teil verteilen, und daß sie die mechanische Festigkeit des Eisenkernes an keiner Stelle unzulässig schwächen. Bei stark beanspruchten Transformatoren oder Drosselspulen kann man diese Kanäle gleichzeitig zur Kühlung des Eisenkernes heranziehen, indem man das Kühlmittel durch sie hindurchströmen läßt. Derartige Kanäle zu Kühlungszwecken sind an sich zwar bekannt; sie verteilen sich indes ähnlich wie die bekannten Kanäle zur Schwächung des Querschnittes auf die ganze Länge des Kernes und liegen nicht nur, worauf es bei der Erfindung ankommt, in dem von der Wicklung bedeckten Teil.In the embodiment of Fig.2, 15 means the coil one High voltage transformer, the iron path of which runs through the core 16 and the yokes 17 closes. The reduction in the cross-section of iron in that covered by the coil Part of the iron path takes place here in that the iron body is inside the coil of channels 18: is interspersed. The channels themselves can be of any shape and shape Have number; they will be arranged expediently so that they are evenly on the throughout the highly saturated part, and that they have the mechanical strength of the iron core at no point inadmissibly weakened. For heavily used transformers or reactors, these channels can be used at the same time to cool the iron core by letting the coolant flow through them. Such Channels for cooling purposes are known per se; however, they are distributed similarly like the well-known channels for weakening the cross-section over the entire length of the Core and are not only what matters in the invention, in that of the Winding covered part.

Die Erfindung ist besonders vorteilhaft für Hochspannungstransformatoren oder Drosselspulen, insbesondere für solche, die mit Röhrenwicklungen ausgestattet sind. Da bei derartigen Apparaten, wie schon oben ausgeführt wurde, die Stirnflächen mit Rücksicht auf die Isolation in einem verhältnismäßig großen Abstand von den Jochen entfernt bleiben müssen, so wird bei ihnen die Streuung an der aus der Spule heraustretenden Stelle des Kernes besonders stark werden, `nenn man diesem Teile nicht die nach der Erfindung vorgesehene Ouersdhnittsvergrößerung geben würde.The invention is particularly advantageous for high voltage transformers or choke coils, especially for those equipped with tube windings are. Since in such apparatus, as already stated above, the end faces considering the isolation at a relatively large distance from the Yokes have to remain removed, so with them the scatter on the from the coil protruding point of the nucleus become particularly strong, one calls this part would not give the cross-section enlargement provided according to the invention.

Claims (2)

PATENTANSPRÜCHE: i. Hochspannungstransformator oder Drosselspule mit unbeweglichem Eisenkörper ohne magnetischen Nebenschluß und mit fest auf dem ,Eisenkörper in erheblichem Abstand vom Joche angeordneten Spulen, dadurch gekennzeichnet, daß im Eisenkörper alle vän den Spulen bedeckten Teile des Eisenweges geringeren Querschnitt und infolgedessen höhere magnetische Sättigung haben als die nicht von den Spulen bedeckten Teile. PATENT CLAIMS: i. High-voltage transformer or choke coil with an immovable iron body without magnetic shunt and with coils fixedly arranged on the iron body at a considerable distance from the yokes, characterized in that in the iron body all parts of the iron path covered by the coils have a smaller cross-section and consequently higher magnetic saturation than those not of parts covered by the coils. 2. Transformator oder Drosselspule nach Anspruch i, gekennzeichnet durch die Eisenkerne durchsetzende Kanäle in den von den Spulen bedeckten Teilen.2. Transformer or inductor according to claim i, characterized by channels penetrating through the iron cores in those covered by the coils Share.
DES51001D 1919-09-05 1919-09-05 High-voltage transformer or reactor with an immovable iron body without a magnetic shunt Expired DE356227C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES51001D DE356227C (en) 1919-09-05 1919-09-05 High-voltage transformer or reactor with an immovable iron body without a magnetic shunt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES51001D DE356227C (en) 1919-09-05 1919-09-05 High-voltage transformer or reactor with an immovable iron body without a magnetic shunt

Publications (1)

Publication Number Publication Date
DE356227C true DE356227C (en) 1922-07-18

Family

ID=7488046

Family Applications (1)

Application Number Title Priority Date Filing Date
DES51001D Expired DE356227C (en) 1919-09-05 1919-09-05 High-voltage transformer or reactor with an immovable iron body without a magnetic shunt

Country Status (1)

Country Link
DE (1) DE356227C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1292745B (en) * 1964-07-08 1969-04-17 Comp Generale Electricite Large capacity transformer or reactor
WO1999060585A1 (en) * 1998-05-18 1999-11-25 Nmb (Usa), Inc. Variable inductor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1292745B (en) * 1964-07-08 1969-04-17 Comp Generale Electricite Large capacity transformer or reactor
WO1999060585A1 (en) * 1998-05-18 1999-11-25 Nmb (Usa), Inc. Variable inductor
US6317021B1 (en) * 1998-05-18 2001-11-13 Nmb (Usa) Inc. Variable inductor

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