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TRANSFORMATEUR DE COURANT POUR SOUS-STATION DE COMMUTATION HAUTE TENSION À ISOLATION GAZEUSE
TRANSFORMATEUR DE COURANT POUR SOUS-STATION DE COMMUTATION HAUTE TENSION À ISOLATION GAZEUSE
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摘要
The invention relates to a current transformer for high voltage gas insulated switchgear substation, wherein the current transformer is arranged in a enclosure of housing, according to the preamble of claim 1. In order to enhance the protection of current transformers in high voltage gas insulated switchgears, the invention is, that the current transformer is formed and/or embedded by vacuum casting resin outside of a metal tube, in such, that a primary conductor of the current transformer is located in the middle of a metal assembly and sealed by insulation gas, and that on the metal tube are fixed coils by polyurethane and centered, and that a further secondary box is casted sidely on the casted resin of the metal tube, in order to contain secondary side elements of the current transformer.
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