An insulating sleeve for high-voltage cable connectors

Abstract

The invention discloses an insulating sleeve for a high-voltage cable connector, comprising an insulating shell. Three insulating tubes are arranged on the bottom surface of the insulating shell in a downward-extending manner and are respectively and internally provided with an insulating inner tube; the outer diameter of the insulating inner tube is less than the inner diameter of the insulating tube; the inner side of the upper part of each insulating tube is provided with a radial partition plate which is arranged below the bottom surface of the insulating shell and a gap is arranged between the radial partition plate and the bottom surface of the insulating shell; the upper end of the insulating inner tube is opened in the radial partition plate, the lower end surface of the insulating inner tube is positioned above the lower end surface of the insulating tube and a gap is arranged between the lower end surface of the insulating inner tube and the lower end surface of the insulating tube. Conducting rods connected with phase lines are placed in the insulating inner tubes; the connecting positions of the upper ends of the conducting rods and a cable are positioned in the insulating tubes and are positioned below the bottom surface of the insulating shell; and the inner wall of the upper end of each insulating tube and the upper side surface of the bottom part of the insulating shell are arranged between the upper ends of the three conducting rods and the cable at intervals, so that the surface distance is greatly increased, and the creepage phenomenon is prevented.

Description

technical field [0001] The invention relates to the electrical field, in particular to a cable connector, in particular to an insulating sleeve for a high-voltage cable connector. Background technique [0002] In the prior art, a cable connector is used to connect the cable and the transformer. Insulating sleeves are used in the cable connector to isolate the moving contact rods on the three phase lines. The applicant proposed the above-mentioned technical solution named the buried transformer high-voltage cable connector in the utility model patent No. CN2755808 published on February 1, 2006. However, the distance between the connection points of the three moving contact rods and the cable is short, and when the cable connector is used to connect high voltage, creepage will occur between the connecting points of the three moving contact rods and the cable, resulting in failure. If the distance between the three moving contact rods is increased, the cable connector will be...

AI Technical Summary

Problems solved by technology

However, the distance between the three moving contact rods and the connection point of the cable is short, and when the cable connector is used to connect high voltage, creepage will occur between the three moving contact rods and the connection point of the cable, resulting in failure

If the distance between the three moving contact rods is increased, the cable connector will be too bulky and cannot be installed with the transformer

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