METHOD AND PLANT FOR MANUFACTURING ELECTROTECHNICAL ARTICLES

The invention relates to the methods and the plant for manufacturing transformer windings. The method includes heating varnish up and degassing, vacuum treatment of a device, impregnation with varnish, drying thereof under cyclic quick vacuum treatment and subsequent vacuum relief to atmospheric pre...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZALEVSKY VIKTOR MIHAILOVICH, ABRAMOV YAKOV, TAMURKA VITALY GRIGOREVICH, VESELOV VVADIMIR MIHAILOVICH, VOLODIN VENIAMIN SERGEEVICH, MIRONOV BORIS IVANNOVICH, EVDOKIMOV VLADIMIR DMITRIEVICH
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to the methods and the plant for manufacturing transformer windings. The method includes heating varnish up and degassing, vacuum treatment of a device, impregnation with varnish, drying thereof under cyclic quick vacuum treatment and subsequent vacuum relief to atmospheric pressure. During the drying process, pulse vacuum treatment is performed after preheating the device. Heating and impregnation of devices are performed at the temperature of not more than 50° C. and the pressure of at least 13 KPa. The plant used to implement the method includes heated vacuum plants, connected to the receiver, a pump, atmosphere and an air heating unit to the heat recovery heat exchanger and to the condensing heat exchanger. A condensing heat exchanger is also installed downstream the vacuum pump connected to the receiver.