DE911642C - Cylindrical insulation arrangement for high voltages, especially for transformers, inductors, capacitors and the like. like - Google Patents

Cylindrical insulation arrangement for high voltages, especially for transformers, inductors, capacitors and the like. like

Info

Publication number
DE911642C
DE911642C DEA7753D DEA0007753D DE911642C DE 911642 C DE911642 C DE 911642C DE A7753 D DEA7753 D DE A7753D DE A0007753 D DEA0007753 D DE A0007753D DE 911642 C DE911642 C DE 911642C
Authority
DE
Germany
Prior art keywords
electrode
cylinder
inductors
transformers
capacitors
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
DEA7753D
Other languages
German (de)
Inventor
Dr-Ing Gerhard Praetorius
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.)
AEG AG
Original Assignee
AEG 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 AEG AG filed Critical AEG AG
Priority to DEA7753D priority Critical patent/DE911642C/en
Application granted granted Critical
Publication of DE911642C publication Critical patent/DE911642C/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
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/324Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • 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
    • H01F27/36Electric or magnetic shields or screens
    • H01F27/363Electric or magnetic shields or screens made of electrically conductive material
    • 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
    • H01F27/36Electric or magnetic shields or screens

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)

Description

Bei Isolieranordnungen für elektrische Hochspannungsapparate hoher Spannungen, bei denen sich zwei konzentrisch ineinanderliegende Zylinder mit verschiedenem Potential gegenüberstehen, läßt sich zwar die Isolierung der homogenen Felder zwischen den Zylindern durch eine Isolation aus aufgewickeltem Papier und Öl gut erreichen, die Beherrschung der Randfelder bereitet aber in vielen Fällen Schwierigkeiten. Das gilt besonders dann, wenn sich das übliche Umreißen des Papiers zu Winkelringen oder Isolationskappen schlecht durchführen läßt, wie es z. B. der Fall ist, wenn ein längerer Zylinder über einem kürzeren angeordnet ist. Es können sich dann Gleitfunken entlang dem längeren Zylinder bilden.In the case of insulation arrangements for high-voltage electrical equipment, higher Tensions in which two concentrically nested cylinders with different Opposite potential, the isolation of the homogeneous fields between reach the cylinders easily thanks to an insulation made of rolled up paper and oil, however, in many cases it is difficult to control the peripheral fields. This is especially true when the usual outlining of the paper turns into angular rings or insulation caps can perform poorly, as z. B. is the case if a longer cylinder is placed over a shorter one. There can then be sliding sparks form along the longer cylinder.

Aufgabe der Erfindung ist es, eine Isolieranordnung für hohe Spannungen zu schaffen, die sich leicht herstellen läßt und bei der die Möglichkeit der Gleitfunkenbildung weitgehend beseitigt ist. Das wird erfindungsgemäß dadurch erreicht, daß die Stirnseite der kurzen Zylinderelektrode und die Gleitfläche über der fortlaufenden Zylinderelektrode durch zwei hochisolierte, sich gegenüberstehende Ringelelektroden abgeschirmt sind, wobei die eine das Potential der kürzeren und die andere das Potential der längeren Zylinderelektrode führt.The object of the invention is to provide an insulating arrangement for high voltages to create that can be easily manufactured and with the possibility of sliding sparks is largely eliminated. This is achieved according to the invention in that the end face the short cylinder electrode and the sliding surface over the continuous cylinder electrode are shielded by two highly insulated ring electrodes facing each other, one being the potential of the shorter and the other being the potential of the longer Cylinder electrode leads.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung an Hand der Zeichnung noch näher beschrieben.An exemplary embodiment of the invention is described below with reference to the Drawing described in more detail.

Die Figur zeigt im Schnitt das Ende einer Isolieranordnung, die aus einem längeren Zylinder i und einem darin liegenden kürzeren Zylinder :2 besteht. Der Zylinder i kann hierbei z. B. den Kern oder die Unterspannungswicklung eines Transformators und der Zylinder :2 die Oberspannungswicklung darstellen, oder umgekehrt. Zwischen den Zylindern i und 2 liegt die Isolationsschicht 3, die z. B. aus aufgewickeltem ölgetränktem Papier besteht. Ein Teil des Papiers ist um das abgerundete Ende .4 des Zylinders :2 herumgeschlagen. Vor dem Zylinder ist, in Achsrichtung gesehen, eine gut isolierte Ringelektrode 5 angeordnet, die mit dem Zylinder 2 galvanisch verbunden ist und so das Potential des Zylinders 2 führt. Dieser Elektrode 5 steht eine weitere gut isolierte Ringelektrode 6 gegenüber, die das- Potential des äußeren Zylinders führt. Das ganze Potentialgefälle liegt also zwischen den Enden der Ringelektroden an gut isolierten Stellen der Isolationsbandagen 9 und io der Elektrode. Es wird hierdurch sowohl die kritische Stelle 7 am Ende des Zylinders 2 entlastet als auch die Ausbildung eines Gleitfunkens an der Stelle ä entlang den Papierbahnen unterdrückt.The figure shows, in section, the end of an insulating arrangement that consists of a longer cylinder i and a shorter cylinder: 2 therein. The cylinder i can here, for. B. the core or the low voltage winding of a Transformer and the cylinder: 2 represent the high voltage winding, or vice versa. Between the cylinders i and 2 is the insulation layer 3, the z. B. from wound oil-soaked paper. Some of the paper is around the rounded end .4 of the cylinder: 2 knocked over. In front of the cylinder, seen in the axial direction, is a well-insulated ring electrode 5 is arranged, which is galvanically connected to the cylinder 2 is connected and so leads the potential of cylinder 2. This electrode 5 is another well-insulated ring electrode 6 opposite, the potential of the outer Cylinder leads. So the whole potential gradient lies between the ends of the ring electrodes at well-insulated points of the insulation bandages 9 and io of the electrode. It will as a result, both the critical point 7 at the end of the cylinder 2 is relieved and the formation of a sliding spark at the point ä along the paper webs is suppressed.

Die Herstellung dieser Isolieranordnung geht so vor sich, daß die Ringelektroden 5 und 6 vor dem Zusammenbau mit den Zylindern i und 2 jede für sich gut isoliert werden und zusammen mit dem Zylinder :2 auf einen Wickeldorn aufgesetzt werden.The production of this insulating arrangement goes on in such a way that the Ring electrodes 5 and 6 before assembly with cylinders i and 2, each for itself must be well insulated and, together with the cylinder: 2, placed on a winding mandrel will.

ach Herstellen der galvanischen Verbindung zwischen dem Zylinder 2 und der Ringelektrode 5 werden die Papierbahnen 3 aufgewickelt und darauf der Zylinder i aufgebracht. Vorteilhaft ist hierbei besonders, daß nach der Herunternahme von der Wickelbank jegliches Umreißen von Papier zu Winkelringen oder -kappen vermieden wird, was gerade bei der Isolation des Innenzylinders schwierig und zeitraubend wäre.After establishing the galvanic connection between the cylinder 2 and the ring electrode 5, the paper webs 3 are wound up and the cylinder thereon i applied. It is particularly advantageous that after taking down the changing bench avoids any outlining of paper to form angular rings or caps becomes difficult and time-consuming, especially with the isolation of the inner cylinder were.

Claims (2)

PATENTANSPRÜCHE: r. Zylindrische Isolieranordung für hohe Spannungen, insbesondere für Transformatoren, Drosselspulen, Kondensatoren u. dgl., bei der eine Zylinderelektrode eine zweite konzentrisch hierzu liegende in Achsrichtung überragt und zwischen diesen Elektroden eine Isolation aus aufgewickeltem Papier und Öl liegt, dadurch gekennzeichnet, daß an der Stirnseite (q.) der einen Elektrode (2) zwei hochisolierte, sich gegenüberstehende Ringelektroden (5, 6) vorgesehen sind, von denen die eine (5) das Potential der kürzeren (2) und die andere (6) das Potential der längeren Hauptelektrode (i) führt. PATENT CLAIMS: r. Cylindrical insulation arrangement for high voltages, in particular for transformers, inductors, capacitors and the like, in which a cylinder electrode protrudes in the axial direction over a second concentric to it and between these electrodes there is insulation made of rolled up paper and oil, characterized in that on the end face (q.) of one electrode (2) two highly insulated, opposing ring electrodes (5, 6) are provided, of which one (5) the potential of the shorter (2) and the other (6) the potential of the longer main electrode ( i) leads. 2. Anordnung nach Anspruch i, dadurch gekennzeichnet, daß bei genügender Festigkeit der Randisolation der kürzeren, innenliegenden Hauptelektrode (2) nur eine Ringelektrode (6) vorhanden ist, die an der außenliegenden Hauptelektrode (i) angelenkt ist.2. Arrangement according to claim i, characterized characterized that with sufficient strength of the edge insulation of the shorter, inner Main electrode (2) only one ring electrode (6) is present, which is on the outside Main electrode (i) is hinged.
DEA7753D 1943-06-22 1943-06-22 Cylindrical insulation arrangement for high voltages, especially for transformers, inductors, capacitors and the like. like Expired DE911642C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA7753D DE911642C (en) 1943-06-22 1943-06-22 Cylindrical insulation arrangement for high voltages, especially for transformers, inductors, capacitors and the like. like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA7753D DE911642C (en) 1943-06-22 1943-06-22 Cylindrical insulation arrangement for high voltages, especially for transformers, inductors, capacitors and the like. like

Publications (1)

Publication Number Publication Date
DE911642C true DE911642C (en) 1954-05-17

Family

ID=6921325

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA7753D Expired DE911642C (en) 1943-06-22 1943-06-22 Cylindrical insulation arrangement for high voltages, especially for transformers, inductors, capacitors and the like. like

Country Status (1)

Country Link
DE (1) DE911642C (en)

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