DE906826C - Winding arrangement for isolating transformers, current transformers or the like with iron core and thrust winding located at intermediate potential - Google Patents

Winding arrangement for isolating transformers, current transformers or the like with iron core and thrust winding located at intermediate potential

Info

Publication number
DE906826C
DE906826C DES2558D DES0002558D DE906826C DE 906826 C DE906826 C DE 906826C DE S2558 D DES2558 D DE S2558D DE S0002558 D DES0002558 D DE S0002558D DE 906826 C DE906826 C DE 906826C
Authority
DE
Germany
Prior art keywords
winding
iron core
thrust
transformers
intermediate potential
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
DES2558D
Other languages
German (de)
Inventor
Dr-Ing Richard Elsner
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 DES2558D priority Critical patent/DE906826C/en
Application granted granted Critical
Publication of DE906826C publication Critical patent/DE906826C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20Instruments transformers
    • H01F38/22Instruments transformers for single phase ac
    • H01F38/24Voltage transformers
    • H01F38/26Constructions

Description

Die Erfindung bezieht sich auf eine Wicklungsanordnung für Isoliertransformatoren, Stromwandler od. dgl. mit auf Zwischenpotential befindlichem Eisenkern und Schubwicklung und hat die Aufgabe, den auf einem Zwischenpotential befindlichen Eisenkern rein kapazitiv auf dieses Zwischenpotential einzusteuern, vorzugsweise so, claß sein Potential in der Mitte zwischen dem Hochspannungspotential und der Erde liegt.The invention relates to a winding arrangement for insulating transformers, Current transformer or the like with iron core and thrust winding located at intermediate potential and has the task of cleaning the iron core, which is at an intermediate potential to steer capacitively on this intermediate potential, preferably so, be cool Potential in the middle between the high voltage potential and the earth.

Erfindungsgemäß wird zur Potentialsteuerung die Schubwicklung herangezogen, die nicht wie sonst unmittelbar auf dem Eisenkern, also innerhalb der jeweiligen Leistungswicklungen, sondern außerhalb dieser Wicklungen angeordnet ist, so daß dadurch die gegenseitige Kapazität jeder Arbeitswicklung gegen den Eisenkern und die Schubwicklung im Vergleich zu der bekannten Transformatoranordnung mit urmittelbar auf dem Eisenkern sitzender Schubwicklung mehr als verdoppelt wird.According to the invention, the thrust winding is used to control the potential, which are not directly on the iron core as usual, i.e. within the respective Power windings, but is arranged outside of these windings so that thereby the mutual capacity of each working winding against the iron core and the thrust winding in comparison to the known transformer arrangement with direct thrust winding sitting on the iron core is more than doubled.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt.An embodiment of the invention is shown in the drawing.

i ist die auf Hochspannungspotential befindliche, 2 die auf '.l,7iederspannungspotentialbefindlicheArbeitswicklung. 3 und 4 sind die mit dem Eisenkern 5 galvanisch verbundenen Transportwicklungen. Damit der Eisenkern 5 gerade das halbe Hochspannungspotential annimmt, müssen die Abstände zwischen den Wicklungen i und 3 einerseits und 2 und andererseits so gewählt werden, daß die Bedingung erfüllt ist, wobei die verschiedenen Kapazitäten Cl' usw. jeweils den in Fig. i als Kondensator gestrichelt ringezeichneten Kapazitäten entsprechen. So ist also z. B. Cl' die Kapazität der Arbeitswicklung i gegen den Eisenkern 5. Die oben angegebene Bedingung läßt sich mit der erfindungsgemäßen Wicklungsanordnung viel bequemer erreichen als bei einer Anordnung der Schubwicklung unmittelbar auf dem Eisenkern, die nur eine einzige Kapazität Cl zwischen Arbeitswicklung und dem mit der Schubwicklung versehenen Eisenkern ergeben würde, während bei der Anordnung nach Fig. i an Stelle der einfachen Kapazität Cl zwei Teilkapazitäten Cl' und Cl" treten. Der Eisenkern 5 ist leitend mit der Schubwicklung 3, 4. und mit einem Zwischenring 8 verbunden, der zwischen den das Gehäuse des Transformators bildenden Isolatoren 6, 7 liegt.i is the working winding which is at high voltage potential, 2 is the working winding which is at l, 7low voltage potential. 3 and 4 are the transport windings galvanically connected to the iron core 5. So that the iron core 5 takes just half the high voltage potential, the distances between the windings i and 3 on the one hand and 2 and on the other hand must be chosen so that the condition is fulfilled, the various capacitances Cl 'etc. each corresponding to the capacitances shown in dashed lines as a capacitor in FIG. So z. B. Cl 'the capacity of the working winding i against the iron core 5. The above condition can be achieved with the winding arrangement according to the invention much more easily than with an arrangement of the thrust winding directly on the iron core, the only a single capacitance Cl between the working winding and the one with the An iron core provided with a thrust winding would result, while in the arrangement according to FIG the insulators 6, 7 forming the housing of the transformer.

Fig. -2 zeigt das Schaltbild der Wicklungen. Außer der rein kapazitiven Steuerung des Hilfspotentials für den Eisenkern 5, den Ring 8 und die Schubwicklung 3, 4 ergibt die Erfindung noch den besonderen Vorteil, daß sich der Streufluß der Wicklungen nicht, wie bei der bekannten Anordnung der Schubwicklungen, von Joch zu Joch außerhalb der Wicklungen schließen muß, wodurch sich unsichere Verhältnisse ergeben, sondern seinen Rückscbluß durch den Eisenkern des erregten Schenkels findet.Fig. -2 shows the circuit diagram of the windings. Except for the purely capacitive Control of the auxiliary potential for the iron core 5, the ring 8 and the thrust winding 3, 4, the invention still has the particular advantage that the leakage flux of Windings not, as in the known arrangement of the thrust windings, from the yoke to yoke outside the windings must close, creating unsafe conditions but finds its return through the iron core of the excited thigh.

Claims (1)

PATENTANSPRUCIi: Wicklungsanordnung für Isoliertransformatoren, Stromwandler od. dgl. mit auf Zwischenpotential befindlichem Eisenkern und Schubwicklung, dadurch gekennzeichnet, daß die Schubwicklung (3, 4) außerhalb der Arbeitswicklungen (i, 2) angeordnet ist, vorzugsweise derart, daß die gegenseitige Kapazität (z. B. Cl', Cl") jeder Arbeitswicklung (z. ß. i) gegen den Eisenkern (5) und die Schubwicklung (3) im Vergleich mit einer Wicklungsanordnung, bei der die Schubwicklung zwischen Arbeitswicklung und Eisenkern sitzt, mehr als verdoppelt wird.PATENT CLAIMS: Winding arrangement for insulating transformers, current transformers or the like with iron core and thrust winding located at intermediate potential, thereby characterized in that the thrust winding (3, 4) outside the working windings (i, 2) is arranged, preferably in such a way that the mutual capacitance (e.g. Cl ', Cl ") of each working winding (z. Ss. I) against the iron core (5) and the thrust winding (3) Compared to a winding arrangement in which the thrust winding is between Working winding and iron core is seated, more than doubled.
DES2558D 1943-04-14 1943-04-14 Winding arrangement for isolating transformers, current transformers or the like with iron core and thrust winding located at intermediate potential Expired DE906826C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES2558D DE906826C (en) 1943-04-14 1943-04-14 Winding arrangement for isolating transformers, current transformers or the like with iron core and thrust winding located at intermediate potential

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES2558D DE906826C (en) 1943-04-14 1943-04-14 Winding arrangement for isolating transformers, current transformers or the like with iron core and thrust winding located at intermediate potential

Publications (1)

Publication Number Publication Date
DE906826C true DE906826C (en) 1954-03-18

Family

ID=7469690

Family Applications (1)

Application Number Title Priority Date Filing Date
DES2558D Expired DE906826C (en) 1943-04-14 1943-04-14 Winding arrangement for isolating transformers, current transformers or the like with iron core and thrust winding located at intermediate potential

Country Status (1)

Country Link
DE (1) DE906826C (en)

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