CH95747A - Device for attaching electrical coils to insulating cylinders. - Google Patents

Device for attaching electrical coils to insulating cylinders.

Info

Publication number
CH95747A
CH95747A CH95747DA CH95747A CH 95747 A CH95747 A CH 95747A CH 95747D A CH95747D A CH 95747DA CH 95747 A CH95747 A CH 95747A
Authority
CH
Switzerland
Prior art keywords
insulating
electrical coils
coil
insulating cylinders
attaching electrical
Prior art date
Application number
Other languages
German (de)
Inventor
Oerlikon Maschinenfabrik
Original Assignee
Oerlikon Maschf
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 Oerlikon Maschf filed Critical Oerlikon Maschf
Publication of CH95747A publication Critical patent/CH95747A/en

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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support

Landscapes

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

Description

  

  Einrichtung zur Befestigung von elektrischen Spulen auf Isolierzylindern.    Bei Transformatoren, Stromwandlern usw.  ist es nötig, die Wicklungen gegen Verschie  bung bei auftretenden     gurzschlussströmen     abzustützen. Zu diesem Zwecke hat man.  zum Beispiel auf dem die Spule tragenden  Isolierzylinder zu beiden Seiten der Wick  lung Bandagen oder Rohrstücke aus Isolier  material angebracht. Falls aber diese Ab  stützrohre nicht mit besonderer Sorgfalt auf  dem Isolierzylinder aufgesetzt sind, so ent  stehen leicht zwischen diesen Teilen Luft  schichten.

   Letztere verschlechtern die Ober  flächenisolation, indem sich in jenen Schich  ten Feuchtigkeit ansammeln kann, oder bei  'Verwendung solcher Spulen unter Öl die  Luft eingeschlossen bleibt, welche als klein  ster elektrischer Widerstand bei einer Span  nungsbeanspruchung durchgeschlagen wird.  Dieser Mangel tritt bei der nach vorliegender  Erfindung abgestützten Spule nicht auf.  



  Auf der beiliegenden Zeichnung ist in       Fig.    1 ein Ausführungsbeispiel des Erfin  dungsgegenstandes im     Schnitt    dargestellt.  Die Spule     a    wird     mittelst    zwei Ringkeilen b  aus passendem Isoliermaterial, welche zu bei  den Seiten der Spule unter gleichzeitiger  Pressung gegen die Spule, wie auch gegen    den Isolierzylinder c eingetrieben werden,  auf dem Zylinder c festgehalten. Für die  Aufstellung der Spule in Luft empfiehlt es  sich, den Raum<I>d</I> zwischen den Keilen<I>b</I>  mit einer Isoliermasse auszugiessen.  



  Wie aus     Fig.    2     ersichtlich    ist, können  die Ringe b mit einer Trennfuge e versehen  sein, so dass beim Eintauchen der Spule in     01     dieses in den     Zwischenraum    d aufsteigen  kann, um zu dem oben erwähnten Zweck die       zwischen    der Spule und dem     Isolierzylindei     vorhandene Luft auszutreiben.



  Device for attaching electrical coils to insulating cylinders. In the case of transformers, current transformers, etc., it is necessary to support the windings against shifting in the event of short-circuit currents. For this purpose one has. For example, bandages or pipe sections made of insulating material are attached to the insulating cylinder carrying the coil on both sides of the winding. If, however, these support tubes are not placed on the insulating cylinder with particular care, then air is easily created between these parts.

   The latter worsen the surface insulation in that moisture can accumulate in those layers, or when such coils are used, the air remains trapped under oil, which is the smallest electrical resistance that is broken down by voltage stress. This deficiency does not occur in the spool supported according to the present invention.



  On the accompanying drawing, an embodiment of the invention is shown in section in FIG. The coil a is held on the cylinder c by means of two ring wedges b made of suitable insulating material, which are driven in on the sides of the coil while simultaneously pressing against the coil and against the insulating cylinder c. To set up the coil in air, it is advisable to fill the space <I> d </I> between the wedges <I> b </I> with an insulating compound.



  As can be seen from FIG. 2, the rings b can be provided with a parting line e, so that when the coil is immersed in 01 it can rise into the space d to remove the air between the coil and the insulating cylinder for the above-mentioned purpose to drive out.

Claims (1)

PATENTANSPRUCH' Einrichtung zur Befestigung von elek trischen Spulen auf Isolierzylindern, gekenn zeichnet durch zwischen Spule und Isolier- zylinder eingetriebene. isolierende Ringkeile. UNTERANSPRÜCIi-E 1. Einrichtung nach Patentanspruch, da durch gekennzeichnet, dass zwischen die Ringkeile eine Isoliermasse eingegossen ist. 2. Einrichtung nach Patentanspruch, da durch gekennzeichnet, dass der Raum zwi schen den Ringkeilen Öl enthält. PATENT CLAIM 'Device for fastening electrical coils on insulating cylinders, characterized by those driven between the coil and the insulating cylinder. insulating ring wedges. SUB-CLAIMS-E 1. Device according to claim, characterized in that an insulating compound is cast between the ring wedges. 2. Device according to claim, characterized in that the space between the ring wedges contains oil.
CH95747D 1921-10-25 1921-04-08 Device for attaching electrical coils to insulating cylinders. CH95747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH95747T 1921-10-25

Publications (1)

Publication Number Publication Date
CH95747A true CH95747A (en) 1922-08-01

Family

ID=4353406

Family Applications (1)

Application Number Title Priority Date Filing Date
CH95747D CH95747A (en) 1921-10-25 1921-04-08 Device for attaching electrical coils to insulating cylinders.

Country Status (1)

Country Link
CH (1) CH95747A (en)

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