Anti-breakdown device and electric reactor thereof

Abstract

The embodiment of the invention discloses an anti-breakdown device and an electric reactor thereof. The anti-breakdown device comprises an anti-breakdown cover and a contact connecting piece, wherein the anti-breakdown cover is a conductor with an inner cavity, one end of the anti-breakdown cover is open so as to communicate the inner cavity with the outside of the anti-breakdown cover, the outer contour of the anti-breakdown cover is a smooth curved surface, the contact connecting piece is a conductor, and the first end of the contact connecting piece is connected and conducted with the anti-breakdown cover. According to the invention, the outer contour of the anti-breakdown cover is the smooth curved surface, and the anti-breakdown cover is conducted with the clamping shaft through the contact connecting piece, so that the effect of uniformizing an electric field is achieved, the tip of the clamping shaft does not have discharge and breakdown phenomena any more, and the technical problem that in the prior art, the clamping shaft is prone to discharge and breakdown is solved.

Description

technical field [0001] The invention relates to the design field of power transformers, in particular to an anti-breakdown device of a power transformer and a reactor thereof. Background technique [0002] At present, the reactor in a power transformer with a reactor is often arranged near the main coil. The reactor is designed with a clamping shaft with a sharp structure. Since the clamping shaft needs to be installed in conjunction with other components, it is impossible to make a smooth transition in structure. . For example, the rounding of the tip of the clamping shaft will eventually lead to an extremely uneven electric field at the tip, so that the tip will easily cause discharge and breakdown when the tip is in the electric field, causing a great safety hazard. [0003] In the prior art, problems such as discharge and breakdown at the tip of the clamping shaft are avoided by keeping a safe distance between the clamping shaft of the reactor and the main coil and othe...

AI Technical Summary

Problems solved by technology

[0002] At present, the reactor in a power transformer with a reactor is often arranged near the main coil. The reactor is designed with a clamping shaft with a sharp structure. Since the clamping shaft needs to be installed in conjunction with other components, it is impossible to make a smooth transition in structure.

For example, rounding the corners at the tip of the clamping shaft, etc., will eventually lead to extremely uneven electric field at the tip, so that the tip will easily cause discharge and breakdown when the tip is in the electric field, causing great safety hazards

[0003] In the prior art, problems such as discharge and breakdown at the tip of the clamping shaft are avoided by keeping a safe distance between the clamping shaft of the reactor and the main coil and other electrical components, and the space volume for the layout of the reactor will be correspondingly increase, resulting in an increase in cost

[0004] In addition, those skilled in the art are still working on finding a solution to the technical problem of potential safety hazards caused by discharge and breakdown at the tip of the clamping shaft in the reactor

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