CH148873A - Winding for high voltage machines. - Google Patents
Winding for high voltage machines.Info
- Publication number
- CH148873A CH148873A CH148873DA CH148873A CH 148873 A CH148873 A CH 148873A CH 148873D A CH148873D A CH 148873DA CH 148873 A CH148873 A CH 148873A
- Authority
- CH
- Switzerland
- Prior art keywords
- winding
- high voltage
- voltage machines
- conductive coating
- machines
- Prior art date
Links
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Description
Wicklung für Hochspannungsmaschlinen. Bei Wicklungen, die in Maschinen für hohe Spannungen eingebracht werden, müssen die Ei inzelleiter aus elektrostatischen Gründen mit stark abgerundeten Ecken ausgeführt werden. Dadurch entstehen Zwickel, in denen sehr hohe Beanspruchungen auftreten. Mai) könnte diese Beanspruchungen dadurch herab setzen, dass matt die Zwickel mit einer iso lierenden Masse ausfüllt. Das Ausfüllen bietet aber technische Schwierigkeiten, denn die Zwickel müssen vollkommen homogen aus gefüllt werdet), wenn der durch das Aus füllen beabsichtigte Zweck erreicht werden soll.
Ein einfacheres Mittel, den hoben Be anspruchungen in den Zwickeln zu begegnen, wird durch die Erfindung dadurch gegeben, dass die Hülsen der Einzelleiter mit einem leitenden Belag, zum Beispiel Metallfolie, umgeben werden, und dass die Innenseite der diese Leiter gemeinsam umgebenden Hülse ebenfalls mit einem solchen Belag versehen wird.
In der Zeichnung ist ein Ausführungs beispiel der Erfindung veranschaulicht. Sie zeigt den Querschnitt durch die Seite einer Wicklung, die in eine Nut einer Hochspan nungsmaschine eingelegt werdet) soll. Die Einzelleiter t sind zunächst mit Isolations material i umgeben. Auf dieses Isolations material ist ausserdem noch ein leitender Be lag<B>b</B> aus Metallfolie aufgetragen. Ferner umgibt die einzelnen Leiter noch eine ge- ineinsame Hülse h. Diese Hülse ist innen ebenfalls mit einem leitenden Belag<B>g</B> ver sehen.
Durch die Bei#übrung der leitenden Beläge<B>b</B> Lind<B>g</B> befinden sich die Begren zungsflächen der Zwickel z auf gleichem Potential, so dass ein elektrostatisches Feld, das Glimmfeuer hervorrufen könnte, in den Zwickeln gar nicht erst entstehen kann.
Winding for high voltage machines. In the case of windings that are installed in machines for high voltages, the egg inzelliter must be designed with rounded corners for electrostatic reasons. This creates gussets in which very high loads occur. May) could reduce these stresses by the fact that matt fills the gusset with an insulating compound. However, filling out offers technical difficulties, because the gussets must be filled completely homogeneously if the purpose intended by filling out is to be achieved.
A simpler means of counteracting the high demands in the gusset is provided by the invention in that the sleeves of the individual conductors are surrounded by a conductive coating, for example metal foil, and that the inside of the sleeve that jointly surrounds this conductor is also enclosed such a covering is provided.
In the drawing, an embodiment example of the invention is illustrated. It shows the cross section through the side of a winding that is to be inserted into a slot of a high-voltage machine). The individual conductors t are initially surrounded with insulation material i. A conductive coating made of metal foil is also applied to this insulation material. The individual conductors are also surrounded by a common sleeve h. This sleeve is also provided with a conductive coating <B> g </B> on the inside.
Due to the addition of the conductive coatings <B> b </B> and <B> g </B>, the boundary surfaces of the gusset z are at the same potential, so that an electrostatic field that could cause glowing fire in the Twisting cannot arise in the first place.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE148873X | 1929-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH148873A true CH148873A (en) | 1931-08-15 |
Family
ID=5673006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH148873D CH148873A (en) | 1929-09-09 | 1930-09-03 | Winding for high voltage machines. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH148873A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE960748C (en) * | 1954-08-10 | 1957-03-28 | Siemens Ag | Glow protection for conductors of electrical machines provided with a cover made of resistance material |
DE3102886A1 (en) * | 1981-01-29 | 1982-08-26 | Kraftwerk Union AG, 4330 Mülheim | "ARRANGEMENT FOR INTERNAL POTENTIAL CONTROL IN GENERATOR RODS" |
US4634911A (en) * | 1985-04-16 | 1987-01-06 | Westinghouse Electric Corp. | High voltage dynamoelectric machine with selectively increased coil turn-to-turn insulation strength |
US4724600A (en) * | 1985-04-16 | 1988-02-16 | Westinghouse Electric Corp. | Method of making a high voltage dynamoelectric machine with selectively increased coil turn-to-turn insulation strength |
-
1930
- 1930-09-03 CH CH148873D patent/CH148873A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE960748C (en) * | 1954-08-10 | 1957-03-28 | Siemens Ag | Glow protection for conductors of electrical machines provided with a cover made of resistance material |
DE3102886A1 (en) * | 1981-01-29 | 1982-08-26 | Kraftwerk Union AG, 4330 Mülheim | "ARRANGEMENT FOR INTERNAL POTENTIAL CONTROL IN GENERATOR RODS" |
US4634911A (en) * | 1985-04-16 | 1987-01-06 | Westinghouse Electric Corp. | High voltage dynamoelectric machine with selectively increased coil turn-to-turn insulation strength |
US4724600A (en) * | 1985-04-16 | 1988-02-16 | Westinghouse Electric Corp. | Method of making a high voltage dynamoelectric machine with selectively increased coil turn-to-turn insulation strength |
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