DE439502C - Small transformers, measuring transducers and similar electrical devices, all of which are active parts in a vessel completely filled with liquid insulating material with a sealed lid - Google Patents

Small transformers, measuring transducers and similar electrical devices, all of which are active parts in a vessel completely filled with liquid insulating material with a sealed lid

Info

Publication number
DE439502C
DE439502C DES63042D DES0063042D DE439502C DE 439502 C DE439502 C DE 439502C DE S63042 D DES63042 D DE S63042D DE S0063042 D DES0063042 D DE S0063042D DE 439502 C DE439502 C DE 439502C
Authority
DE
Germany
Prior art keywords
completely filled
small transformers
sealed lid
vessel
active parts
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
DES63042D
Other languages
German (de)
Inventor
Dr-Ing Willy Sarfert
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.)
VEM Sachsenwerk GmbH
Original Assignee
Sachsenwerk Licht und Kraft 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 Sachsenwerk Licht und Kraft AG filed Critical Sachsenwerk Licht und Kraft AG
Priority to DES63042D priority Critical patent/DE439502C/en
Application granted granted Critical
Publication of DE439502C publication Critical patent/DE439502C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Description

Kleintransformatoren, Meßwandler und ähnliche elektrische Apparate, deren sämtliche aktive Teile in einem mit flüssigem Isoliermittel vollständig gefüllten Gefäß mit abgedichtetem Deckel untergebracht sind. Transformatoren u. dgl. mit Ölisolation werden heute meist -zur Verhinderung der Zersetzung des Öles durch den Sauerstoff der Luft und Verhinderung der Feuchtigkeitsaufnahme aus der Luft mit sogenannten Ausdehnungsgefäßen versehen. Letzteres ist ein mit dem Hauptgefäß des Transformators durch ein Rohr verbundenes kleineres Ölgefäß, das die durch die Temperaturschwankungen bedingte Volumenänderung des Öles ausgleicht. Bei Kleintransformatoren und Meßwandlern würde die Anbringung eines solchen Ausdehnungsgefäßes verhältnismäßig teuer und umständlich werden. Das Öl dieser Apparate ist jedoch in gleicher Weise den schädlichen Einflüssen des Luftsauerstoffes und der Feuchtigkeitsaufnahme ausgesetzt.Small transformers, measuring transducers and similar electrical apparatus, all of its active parts in a completely filled with liquid isolating agent Vessel with a sealed lid are housed. Transformers and the like with oil insulation are mostly used today - to prevent the decomposition of the oil by the oxygen the air and preventing the absorption of moisture from the air with so-called Provide expansion vessels. The latter is one with the main vessel of the transformer Smaller oil compartment connected by a pipe, which is affected by the temperature fluctuations compensates for any change in volume of the oil. For small transformers and instrument transformers the installation of such an expansion tank would be relatively expensive and become awkward. However, the oil in these devices is equally harmful Exposed to the effects of atmospheric oxygen and moisture absorption.

Zweck nachstehend beschriebener Erfindung ist es nun, für diese kleinen Apparate mit Ölfüllung dadurch die mit der Luft in Berührung kommende Öloberfläche auf ein Minimurr zu beschränken, daß nur der Hohlraum der vorhandenen Durchführungen; hauptsächlich derjenigen der Hochspannungsseite, als Ausdehnungsraum für die Volumenänderung des Öles benutzt wird. Da hierbei das Ölgefäß vollständig mit der Isolierflüssigkeit angefüllt wird, so daß keinerlei Luftraum im Gefäß selbst mehr vorhanden ist, kann sich an den Eisenteilen des Gefäßes und Deckels auch keinerlei Feuchtigkeitsniederschlag (Schwitzwasser) bilden.The purpose of the invention described below is now for these small Apparatus with an oil filling cause the oil surface that comes into contact with the air to restrict to a minimum that only the cavity of the existing bushings; mainly that of the high-voltage side, as an expansion space for the volume change of the oil is used. Because here the oil compartment is completely filled with the insulating liquid is filled so that there is no longer any air space in the vessel itself There is also no condensation of moisture on the iron parts of the vessel and lid (Condensation water).

Bei nicht vollständiger Entfernung der Luft aus dem Gefäß kann sich das Öl durch den Sauerstoff der Luft zersetzen, wobei Wasserabspaltung eintritt. Es kann hierbei durch topfartige Ausbildung des unteren. Isolatorendes noch erreicht werden, daß das innerhalb des Durchführungsisolators sich niederschlagende Kondensat nicht in das Hauptgefäß eintritt, sondern im Durchführungsisolator festgehalten wird. Abb. i zeigt beispielsweise einen Spannungswandler, bei dem die Durchführungen a als Ausdehnungsgefäß für das Öl benützt sind. Abb.2 zeigt ebenfalls als beispielsweise Ausführungsform einen Stromwandler mit entsprechender Ausbildung des Durchführungsisolators als ölausdehnungsgefäß, wobei das untere Ende des Durchführungs.isolatoxs, a topfartig ausgebildet ist (b), damit sich das etwa innerhalb des Durchführungsisolators bildende Kondenswasser darin sammelt. Der Hohlraum der Durchführungen steht am oberen Ende mit der Außenluft in Verbindung.If the air is not completely removed from the vessel, it may develop decompose the oil through the oxygen in the air, whereby water is split off. It can be done by a pot-like design of the lower. End of isolator reached that the condensate precipitating inside the bushing insulator does not enter the main vessel but is held in the bushing insulator will. Fig. I shows, for example, a voltage converter in which the bushings a are used as an expansion tank for the oil. Fig.2 also shows as an example embodiment, a current transformer with appropriate training of the bushing insulator as an oil conservator, with the lower end of the bushing isolatox, a is pot-shaped (b), so that it is approximately within the bushing insulator forming condensation water collects in it. The cavity of the bushings is at the top End in contact with the outside air.

Claims (2)

PATENTANSPRÜCHE: . i. Kleintransformatoren, Meßwandler und ähnliche elektrische Apparate, deren sämtliche aktive Teile in einem mit flüs: sigem Isoliermittel vollständig gefüllten Gefäß mit abgedichtetem Deckel untergebracht sind, in das die Hochspannungsleitungen durch Isolierkörper eingeführt werden, dadurch gekennzeichnet, daß für die durch Temperaturschwankungen bedin-te Volumenänderung des Öles ausschließlich der mit dem Gefäßraume in Verbindung stehende Hohlraum der in dem Gefäßdeckel angeordneten Durchführungsisolatoren benutzt ist. PATENT CLAIMS:. i. Small transformers, transducers and the like electrical apparatus, all of which have active parts in one with a liquid isolating agent completely filled vessel with sealed lid are accommodated in the the high-voltage lines are introduced through insulating bodies, characterized in that that only for the change in volume of the oil caused by temperature fluctuations the cavity which is in communication with the vessel space and which is arranged in the vessel lid Bushing isolators is used. 2. Kleintransformatoren und Meßwandler mit Ölisolation nach Anspruch i mit hohler. 'Durchführungsisolatoren, die am unteren Ende topfartig ausgebildet sind zur Aufnahme der innerhalb der Durchführung sich niederschlagenden Feuchtigkeit. 2. Small transformers and transducers with oil insulation according to claim i with a hollow. Bushing insulators that are pot-shaped at the lower end to absorb the moisture that precipitates inside the bushing.
DES63042D 1923-06-07 1923-06-07 Small transformers, measuring transducers and similar electrical devices, all of which are active parts in a vessel completely filled with liquid insulating material with a sealed lid Expired DE439502C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES63042D DE439502C (en) 1923-06-07 1923-06-07 Small transformers, measuring transducers and similar electrical devices, all of which are active parts in a vessel completely filled with liquid insulating material with a sealed lid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES63042D DE439502C (en) 1923-06-07 1923-06-07 Small transformers, measuring transducers and similar electrical devices, all of which are active parts in a vessel completely filled with liquid insulating material with a sealed lid

Publications (1)

Publication Number Publication Date
DE439502C true DE439502C (en) 1927-01-11

Family

ID=7496074

Family Applications (1)

Application Number Title Priority Date Filing Date
DES63042D Expired DE439502C (en) 1923-06-07 1923-06-07 Small transformers, measuring transducers and similar electrical devices, all of which are active parts in a vessel completely filled with liquid insulating material with a sealed lid

Country Status (1)

Country Link
DE (1) DE439502C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974633C (en) * 1951-07-20 1961-03-09 Friedrich Dr-Ing E H Raupach Voltage transformer filled with liquid insulating material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974633C (en) * 1951-07-20 1961-03-09 Friedrich Dr-Ing E H Raupach Voltage transformer filled with liquid insulating material

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