DE902654C - Transformer with oil circulation cooling - Google Patents

Transformer with oil circulation cooling

Info

Publication number
DE902654C
DE902654C DEA7922D DEA0007922D DE902654C DE 902654 C DE902654 C DE 902654C DE A7922 D DEA7922 D DE A7922D DE A0007922 D DEA0007922 D DE A0007922D DE 902654 C DE902654 C DE 902654C
Authority
DE
Germany
Prior art keywords
transformer
oil circulation
oil
pump
circulation cooling
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
DEA7922D
Other languages
German (de)
Inventor
Albert Hundt
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 DEA7922D priority Critical patent/DE902654C/en
Application granted granted Critical
Publication of DE902654C publication Critical patent/DE902654C/en
Expired legal-status Critical Current

Links

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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)
  • Motor Or Generator Cooling System (AREA)

Description

Transformator mit Olumwälzkühlung Die Erfindung betrifft einen Transformator mir Ölumwälzkühlung. Es iist bereits vorgeschlagen 'worden, bei diesen Transformatoren düe Ölgeschwindigkeit geenüber dem sonst üblichen Maß zu steigern, weil schnell strömendes Öl eine höhere Durchschlagsfestigkeit aufweist als langsam strömendes. Man kann auf diese Weise im Hinblick auf die hohe. D urchschlagsfeistigkeiit des Dielektrikums die Iso@la.tilon.sabs,tände der Wicklung verringern und dadurch die Abmessungen und das Gewicht des Transformators, verkleinern, was ihisbesondere bei den im praktisch betriebsfertigen Zustand mit der Eiisenbahn verfahrbaren Großtransiforma:toren von besonderer Bedeutung ist.Transformer with oil circulation cooling The invention relates to a transformer with oil circulation cooling. It has already been suggested for these transformers The oil speed should be increased above the usual level because it is fast flowing oil has a higher dielectric strength than slow flowing oil. One can do this in terms of high. Penetration strength of the Dielectric, the Iso @ la.tilon.sabs, would reduce the winding and thereby the The dimensions and the weight of the transformer, reduce what is particularly important the large transforma: gates that are practically ready for use with the railway is of particular importance.

Die hoher Ölumlaufgesch.wi@nd!igkeit macht es aber auf der anderen Seite erforderlich, daß beim Ausfallen oder Absenken der Ölströmung, z. B. durch das Versagen eines Antriebsmotors einer Pumpe, der Transformator sofort abgeschaltet wilrd, um eine übermäßige Erhitzung der Wicklung und ferner Überschläge infolge des Absinkens der Durchschlagsfestigkeit des Dielektrikums zu vermeiden. Hierbei, ergeben sich gewisse Schwierigkeiten, da das. Abschalten des, Transformators im Störungsfall sehr schnell erfolgen muß, während andbrersteits, der Absehaltvorgang als, solcher naturgemäß eine gewisse Zeit beansprucht.The high oil circulation speed makes it on the other Side required that if the oil flow fails or decreases, e.g. B. by the failure of a drive motor of a pump, the transformer switched off immediately wilrd to avoid excessive heating of the winding and further flashovers as a result to avoid a drop in the dielectric strength of the dielectric. Here, certain difficulties arise because the. Shutdown of the transformer in the Failure must take place very quickly, while on the other hand, the shutdown process as such, of course, takes a certain amount of time.

Die Erfindung schafft hiergegen Abhilfe in der Weilse!, d.aß Mitteil vorgesehen sind, die beim Ausfallen des Antriebtsmotors die zugehörige Ölumwälzpumpe noch eine gewisse Zeit in Betrieb halten. Diese Mittel besttehen vorzugsweise darin, daß auf der Welle der Ölumwälzpumpe Schwungmassen angeordnet sind. Statt dessen kann man aber auch mit der Ölpumpe einen kleinen, kurzze@iüig stark überla.stbaren Hilfsmotor kuppeln, der aus einem besonderen Stromkreis gespeist, wird und sich im Störungsfall selbsttätig einschaltet.The invention provides a remedy for this in the Weilse !, i.e., Mitteil are provided, the associated oil circulation pump if the drive motor fails keep it in operation for a certain period of time. These means are preferably: that Flywheels are arranged on the shaft of the oil circulation pump. Instead, you can But you can also use the oil pump as a small, short-term, heavily overloaded auxiliary motor coupling, which is fed from a special circuit, and in the event of a fault switches on automatically.

Claims (1)

PATENTANSPRÜCHE: r. Transformator mit Ölumwälzkühlung und hoher Ölgeschwindigkeit, der beim Ausfall eines Pumpmotors abgeschaltet wird, dadurch gekennzeichnet, daß Mittel vorgesehen sind, die bei Störung des. Pumpmotors die zugehörige Ölumwälzpumpe noch, eine Zeitlang im Betrieh halten. z. Transformator nach Anspruch r, dadurch gekennzeichnet, , daß auf der Welle der Ölumwälzpumpe Schwungmassen vorgesehen siind. 3. Transformatoir nach Anspruch r, dadurch gekennzeichnet, da.ß mit der Ölpumpe ein kleiner, siiich im Süörungsfall sedbsttätiig einschaltender Hilfsmotor gekuppelt ist, der aus einem besonderen Stromkreis gespeist wird und kurzzeitig stark übertastbar ist;.PATENT CLAIMS: r. Transformer with oil circulation cooling and high oil speed, which is switched off when a pump motor fails, characterized in that Means are provided which, in the event of a fault in the pump motor, the associated oil circulation pump still to keep in the company for a while. z. Transformer according to claim r, characterized characterized in that flywheels are provided on the shaft of the oil circulation pump. 3. transformer according to claim r, characterized in that da.ß with the oil pump a small auxiliary motor that switches on automatically in the event of a failure is coupled which is fed from a special circuit and can be strongly overridden for a short time is;.
DEA7922D 1943-09-15 1943-09-15 Transformer with oil circulation cooling Expired DE902654C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA7922D DE902654C (en) 1943-09-15 1943-09-15 Transformer with oil circulation cooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA7922D DE902654C (en) 1943-09-15 1943-09-15 Transformer with oil circulation cooling

Publications (1)

Publication Number Publication Date
DE902654C true DE902654C (en) 1954-01-25

Family

ID=6921370

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA7922D Expired DE902654C (en) 1943-09-15 1943-09-15 Transformer with oil circulation cooling

Country Status (1)

Country Link
DE (1) DE902654C (en)

Similar Documents

Publication Publication Date Title
DE902654C (en) Transformer with oil circulation cooling
DE695340C (en) Circuit arrangement for braking AC motors with direct current
DE871473C (en) Equipment for machine tools, in particular planing machines
DE545328C (en) Method for the rapid de-energization of alternating current generators with direct current excitation
DE603824C (en) Device for the spasmodic control of electric motors
DE966814C (en) Fuse circuit for an X-ray device
DE754059C (en) Delay relays, especially for railway safety devices
DE767686C (en) Arrangement for regenerative braking of direct current motors using two discharge vessels connected in parallel in opposite directions with respect to the direct current motor
DE710114C (en) Method for reducing the speed of a direct current motor fed by a controllable rectifier from an alternating current network
DE614994C (en) Fine adjustment for elevators with Leonard drive
DE722559C (en) Autonomous block with alternating current as block current
DE923494C (en) Device for influencing the feed rate of hot iron saws
DE714550C (en) Device to accelerate the control process in power generator arrangements with step circuits
AT93444B (en) Lifting device for bar (board) drop hammers.
DE589152C (en) Device for starting asynchronous starting synchronous motors
DE940772C (en) Procedure for the operation of oil-cooled transformers
DE680823C (en) Arrangement for coupling DC and AC networks via two groups of controlled discharge paths
DE456656C (en) Device for engaging heavy coil spring friction clutches by hand
DE891708C (en) Device for producing the suicide circuit for shutting down Leonard drives
DE314471C (en)
AT143210B (en) Device for speed control of direct current shunt motors.
DE427959C (en) Device for the regulation of mechanical power and power transmission
DE761771C (en) Motor switching arrangement
DE566015C (en) Device for the electric reversing drive of guns, swivel mechanisms for armored towers and. Like. Using Leonard circuit
DE472621C (en) Control device for several grinders driven by a common electric motor with mechanical feeding of the wood by electric motors