A DRY HIGH VOLTAGE INSTRUMENT TRANSFORMER

A DRY HIGH VOLTAGE INSTRUMENT TRANSFORMER

A dry high voltage instrument transformer in the form of a HV current transformer (100) comprising a core casing (101) provided with a secondary winding (106), a top housing (102), a primary winding (103), and a dry bushing (104), wherein the core casing (101) comprises an insulation (105) for its e...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Wysocki, Wojciech, Adamczyk, Bartlomiej, Rzepecki, Michal, Banaszczyk, Jedrzej
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
ELECTRICITY
INDUCTANCES
INSULATORS
MAGNETS
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Beschreibung
Zusammenfassung:A dry high voltage instrument transformer in the form of a HV current transformer (100) comprising a core casing (101) provided with a secondary winding (106), a top housing (102), a primary winding (103), and a dry bushing (104), wherein the core casing (101) comprises an insulation (105) for its electrical insulation from the primary winding (103) and from the top housing (102), characterized in that the insulation (105) comprises an insulating composite containing an electrically insulating material made of PES nonwoven impregnated and cured with low viscosity epoxy.The second object of the invention is a dry high voltage instrument transformer in the form of a HV voltage transformer (200) comprising a bottom tank housing (209), a cast of a primary winding module (201) with an embedded screen (202) surrounding the primary winding (203), a field grading disc (208), and a core (210), characterized in that-the cast of the primary winding module (201) is made of an insulating composite (205) containing an electrically insulating material made of PES nonwoven impregnated and cured with low viscosity epoxy.