DE492045C - Isolation of the rod end connections of windings in electrical machines - Google Patents

Isolation of the rod end connections of windings in electrical machines

Info

Publication number
DE492045C
DE492045C DES64045D DES0064045D DE492045C DE 492045 C DE492045 C DE 492045C DE S64045 D DES64045 D DE S64045D DE S0064045 D DES0064045 D DE S0064045D DE 492045 C DE492045 C DE 492045C
Authority
DE
Germany
Prior art keywords
isolation
end connections
windings
electrical machines
rod end
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
DES64045D
Other languages
German (de)
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 Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Publication date
Priority to DES64045D priority Critical patent/DE492045C/en
Application granted granted Critical
Publication of DE492045C publication Critical patent/DE492045C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/32Windings characterised by the shape, form or construction of the insulation
    • H02K3/38Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto

Description

Isolation der Stabendverbindungen von Wicklungen elektrischer Maschinen Die Verbindungsstellen von elektrischen Wicklungsstäben, die gewöhnlich durch Blechzwingen elektrisch verbunden werden, hat man entweder durch zwischengesteckte Keile aus Isolationsmaterial gegeneinander isoliert oder, um zu verhüten, daß zwischen den Keilen sich elektrisch leitender Staub ansetzt, der auch bei herausragenden Keilen Überschläge und damit Wicklungsbeschädigungen verursachen kann, mit Hülsen aus Isolierstoff umgeben. Das Ganze hat man mit Isoliermasse bestrichen und den ganzen Wicklungskopf mit einem Drahtbund unter Zwischenlegen von Isolierstoff befestigt. Bei dieser Verbindungsart bleiben aber noch Stellen zwischen Hülse und Stabisolation frei, an denen sich Metallstaub ansetzen und zu Überschlägen führen kann.Isolation of the rod end connections of windings in electrical machines The connection points of electrical winding bars, usually by means of sheet metal ferrules be connected electrically, one has either by means of wedges inserted between them Insulation material isolated from each other or to prevent that between the Electrically conductive dust accumulates in wedges, even with protruding wedges Flashovers and thus damage to the winding can occur with sleeves made of insulating material surround. The whole thing was coated with insulating compound and the whole winding head fastened with a wire bundle with insulating material in between. With this type of connection However, there are still places between the sleeve and the rod insulation free where metal dust can accumulate can start and lead to rollovers.

Diese Nachteile werden nach der Erfindung vermieden, indem bei Maschinen mit die Endverbindungen einzeln an allen vier Seiten berührenden Isolierstücken diese Isolierstücke aus Streifen gemacht werden, die einander am Umfang des durch die Stabenden gebildeten Wicklungskopfes an einem Ende überlappen.These disadvantages are avoided according to the invention by using machines with the end connections individually touching on all four sides These insulating pieces are made from strips that run through each other around the perimeter overlap the rod ends formed winding head at one end.

Ein Ausführungsbeispiel hierfür ist in Fig. I und 2 der Zeichnung dargestellt. Die Figuren zeigen die Enden zweier Stäbe a und b, die durch eine Zwinge z miteinander verbunden sind. Nach der Erfindung sind um die Zwingen sowohl wie um die Enden der Isolation i der Stäbe Streifen s gelegt, deren Enden e sich am Umfang der Stabenden überlappen. Um die überlappenden Enden ist in üblicher Weise ein Isolationsstreifen t gelegt, der durch einen Drahtbund d gegen die Enden gepreßt wird, wodurch die Isolationsstreifen festgehalten werden. Wie ersichtlich, sind die Stabenden und Zwingen nach dem Inneren der Maschine vollständig abgeschlossen, und an dem äußeren Teil sind durch die Überlappung der freien Streifenenden lange Kriechwege geschaffen, so daß Ansammlung von metallischem Staub und Überschläge zwischen den metallischen Stabenden ausgeschlossen sind.An exemplary embodiment for this is shown in FIGS. I and 2 of the drawing shown. The figures show the ends of two rods a and b, which are held by a ferrule z are connected to each other. According to the invention, the clamps are as well as around the ends of the insulation i of the rods strips s, the ends e of which are at Overlap the circumference of the bar ends. Around the overlapping ends is done in the usual way an insulation strip t placed, which is pressed against the ends by a wire bundle d , whereby the insulation strips are held in place. As can be seen, are the rod ends and clamps after the inside of the machine completely completed, and on the outer part are long due to the overlap of the free strip ends Creepage paths created so that the accumulation of metallic dust and flashovers are excluded between the metallic rod ends.

Gegenüber der Verwendung von Hülsen hat die Anordnung von Streifen den Vorteil, daß sie leichter hergestellt werden kann als Hülsen und daher billiger ist als diese.Compared to the use of sleeves, the arrangement of strips the advantage that it can be manufactured more easily than sleeves and therefore cheaper is than this.

An den Verbindungsstellen, die Anschlüsse c für die Stromleitung enthalten, werden vorteilhaft U-förmige Isolierstreifen verwendet, die nach dem Verbindungsstück zu offen sind und dieses zum Teil noch überdecken. Am Umfang werden diese U-förmigen Streifen durch die Enden des einen benachbarten Streifens überdeckt.At the connection points that contain connections c for the power line, U-shaped insulating strips are advantageously used after the connector are too open and partially cover it. At the circumference these will be U-shaped Strip covered by the ends of an adjacent strip.

Die Isolierung wird dadurch vervollkommnet, daß nach Aufbringen der Streifen alle Ritzen durch Bestreichen mit isolierender Flüssigkeit, z. B. Lack, verklebt werden.The insulation is perfected by the fact that after applying the Strip all cracks by brushing with insulating liquid, e.g. B. paint, be glued.

Claims (1)

PATENTANSPRUCH: Isolation der Stabendverbindungen von Wicklungen elektrischer Maschinen mit die Endverbindungen einzeln an allen vier Seiten berührenden Isolierstücken, dadurch gekennzeichnet, daß die Isolierstücke aus Streifen bestehen, die einander am Umfange des durch die Stabenden gebildeten Wicklungskopfes mit einem Ende überlappen.PATENT CLAIM: Isolation of the rod end connections of windings electrical Machines with the end connections individually touching on all four sides of the insulating pieces, characterized in that the insulating pieces consist of strips which are mutually exclusive overlap at the circumference of the winding head formed by the rod ends with one end.
DES64045D Isolation of the rod end connections of windings in electrical machines Expired DE492045C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES64045D DE492045C (en) Isolation of the rod end connections of windings in electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES64045D DE492045C (en) Isolation of the rod end connections of windings in electrical machines

Publications (1)

Publication Number Publication Date
DE492045C true DE492045C (en) 1930-02-15

Family

ID=7496852

Family Applications (1)

Application Number Title Priority Date Filing Date
DES64045D Expired DE492045C (en) Isolation of the rod end connections of windings in electrical machines

Country Status (1)

Country Link
DE (1) DE492045C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774900A (en) * 1955-07-20 1956-12-18 Gen Electric Webbing of rotor bar extensions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774900A (en) * 1955-07-20 1956-12-18 Gen Electric Webbing of rotor bar extensions

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