Epoxy-resin vacuum-pouring dry-type current transformer

The utility model relates to an epoxy-resin vacuum-pouring dry-type current transformer, which includes an iron core, a primary coil, a secondary coil and an insulation casing, wherein the iron core includes a first iron core and a second iron core; the primary coil is manufactured through winding c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DONG GUOPENG, ZOU DESHUAI, WANG WEIXIAN, WANG FENG, JIANG YUANKE
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The utility model relates to an epoxy-resin vacuum-pouring dry-type current transformer, which includes an iron core, a primary coil, a secondary coil and an insulation casing, wherein the iron core includes a first iron core and a second iron core; the primary coil is manufactured through winding copper strips; the secondary coil includes a first coil and a second coil; and both the first coil and the second coil are manufactured through the independent winding of enamelled wires. The first coil and the second coil are mounted on the iron core after insulated, the first coil corresponds to the first iron core, the second coil corresponds to the second iron core, and the iron core, the primary coil and the secondary coil are all poured in an insulated casing in the vacuum state. The current transformer has the advantages as follows: a totally-closed wall structure is adopted; all coils of the transformer are poured in the vacuum state; the quantity of partial discharge is low, the electrical strength is high,