Improved high-voltage cable connector for underground transformer

Abstract

The invention discloses an improved high-voltage cable connector for an underground transformer. The connector consists of an insulating joint seat and an insulating seal cover, wherein a high-voltage static contact through hole is formed in the lower end face of the insulating joint seat; a high-voltage static contact rod is arranged in the high-voltage static contact through hole; the insulating seal cover is arranged on the upper end face of the insulating joint seat; a cable through hole is formed in the insulating seal cover; an upper screw cover is arranged at the upper end of the insulating seal cover and connected with the insulating seal cover; a lower screw cover is sleeved outside the insulating seal cover and connected with the insulating joint seat; a high-voltage dynamic contact insulating sleeve is arranged in the insulating joint seat; a high-voltage dynamic contact rod is arranged in the high-voltage dynamic contact insulating sleeve and connected with the high-voltage static contact rod by an electric connecting piece; and insulating liquid is filled between the insulating joint seat and the insulating seal cover. The upper screw cover, the insulating seal cover and the insulating joint seat are connected by threads and sealed by seal rings, and the insulating liquid improves internal insulating capability and balances pressure inside and outside a shell, so that a reliable seal is realized. The improved high-voltage cable connector is suitable for the underground transformer.

Description

technical field [0001] The invention relates to the field of electricity, in particular to a cable connector, in particular to a cable connector for a buried transformer, and in particular to an improved high-voltage cable connector for a buried transformer. Background technique [0002] In the prior art, the cable connectors used to connect transformers are composed of medium and high voltage insulating bushings and American cable joints, which are only suitable for oil-immersed power transformers or combined box-type transformers, and the protection level of their shells does not meet the IP68 standard. , so it cannot be used for buried transformers. Contents of the invention [0003] The object of the present invention is to provide an improved buried transformer high-voltage cable connector. The improved buried transformer high-voltage cable connector solves the problem that the protection level of the cable connector connected to the transformer shell in the prior art...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the cable connectors used to connect transformers are composed of medium and high voltage insulating bushings and American cable joints, which are only suitable for oil-immersed power transformers or combined box-type transformers, and the protection level of their shells does not meet the IP68 standard. , so it cannot be used for buried transformers

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