A HV APPARATUS AND A METHOD OF MANUFACTURING SUCH APPARATUS

The present invention refers to HV apparatus (1; 31), and a method of manufacturing a HV apparatus, in particular a HV dry instrument transformer, which has a form of a current transformer (1), a voltage transformer (31) or a combined transformer with an insulating gel (22; 48). The apparatus is cha...

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Bibliographic Details
Main Authors Wysocki, Wojciech, Sjoberg, Peter, Adamczyk, Bartlomiej, Ostlund, Jan, Hedlund, Roger, Bachorz, Lukasz, Czyzewski, Jan, Tarnowski, Marcin, Banaszczyk, Jedrzej
Format Patent
LanguageEnglish
French
German
Published 01.11.2017
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:The present invention refers to HV apparatus (1; 31), and a method of manufacturing a HV apparatus, in particular a HV dry instrument transformer, which has a form of a current transformer (1), a voltage transformer (31) or a combined transformer with an insulating gel (22; 48). The apparatus is characterized in that it comprises at least two electrically conductive elements such as a head transformer cover (2), a head housing base (3), core casing (4), primary conductor (5), a bottom external housing (32), a bottom support flange (39a), a core (33) designed to operate one of the said elements at high voltage with respect to the other and electric insulation material comprising insulating gel (22; 48) filling enclosed space between the conductive elements (2, 3, 4, 5; 32, 39a, 33). The inventive apparatus comprises at least one of the electrically conductive elements (2, 3, 4, 5; 32, 39a, 33) with a coating (2a, 3a, 4a, 5a; 32a, 33a. 39c) made of solid insulating material and separating the surface of the conductive element (2, 3, 4, 5; 32, 39a, 33) from the insulating gel (22; 48).
Bibliography:Application Number: EP20160460025