Main transformer high-voltage bushing military cap

Abstract

The invention discloses a main transformer high-voltage bushing military cap, which comprises a military cap current-carrying part and a military cap fixing part, the military cap current-carrying part comprises a cap body provided with an internal threaded hole and a wiring pile, and a cap edge arranged on the outer wall of one end of the cap body, and the outer wall of the cap body is provided with an exhaust hole communicated with the internal threaded hole; and the military cap fixing part comprises a flange, the flange is provided with a central hole matched with the outer contour of thecap body, circumferential limiting parts are arranged on the contact surfaces of the flange and the brim, the circumferential limiting groove is matched with the circumferential limiting part, the capbody is fixed through the flange, the position of the threaded hole of the flange can be adjusted by rotating the flange, therefore, matching of the military cap internal thread and the conducting rod external thread is not affected while the military cap internal thread is always matched with the threaded hole in the sleeve oil conservator in position, and the defect that the current-carrying area is reduced after the military cap is installed due to the design defects of the sleeve oil conservator or the military cap is overcome.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of transformer equipment, in particular to a general cap for a high-voltage bushing of a main transformer. Background technique [0002] The general cap of the main transformer high voltage bushing is the current-carrying joint connecting the main transformer bushing and the high voltage wire, and plays an important role in connecting the internal and external lines and supporting the fixed lead. [0003] The existing general cap installation method is that the general cap is rotated in a clockwise direction, so that the internal thread of the general cap is closely matched with the external thread of the conductive rod, and then a number of bolts are used to pass through the general cap fixing hole and the mounting flange fixing threaded hole on the top of the sleeve. Secure the general cap to the sleeve. Under normal circumstances, after the threads between the general cap and th...

AI Technical Summary

Problems solved by technology

[0004] However, this treatment method will lead to counterclockwise retreat, reduce the pressure of the internal and external threads, reduce the current-carrying area, and increase the contact resistance. Long-term operation will cause defects such as heat generation and unbalanced direct resistance.

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