High-voltage switch with three-phase bodies in triangular distribution and high-voltage switch cabinet

Abstract

The invention provides a high-voltage switch with three-phase bodies in triangular distribution. The high-voltage switch comprises the three-phase bodies, an operating mechanism and a transmission mechanism, wherein the three-phase bodies are in triangular distribution; any body comprises an isolating stationary contact, an isolating crank arm, an isolating movable contact, a wire incoming flexible connector and a switch body; the isolating stationary contact is positioned at the top of the body; the isolating movable contact is arranged at the inner end of the isolating crank arm; the isolating crank arm is pivoted below the isolating stationary contact; when the isolating crank arm rotates to a preset position, the isolating movable contact is contacted with the isolating stationary contact and closed; and the switch body is positioned below the isolating movable contact and connected with the outer end of the isolating crank arm through the wire incoming flexible connector. By adoption of a structure that the three-phase bodies are in triangular distribution, the electric field intensity of the high-voltage switch is uniformly distributed. With a reasonable transmission mechanism, the high-voltage switch can operate more conveniently and more reliably.

Description

【Technical field】 [0001] The invention relates to a high-voltage switch and a high-voltage switch cabinet. 【Background technique】 [0002] High-voltage switches belong to the category of medium and high-voltage power distribution products in the field of electric power technology, which can include high-voltage switch components such as high-voltage load switches, circuit breakers, disconnectors, and grounding switches. Its high-voltage switchgear can be metal switchgear and solid insulated switchgear with air-insulated medium, and can also be divided into gas-insulated sealed or semi-sealed switchgear. [0003] The existing high-voltage switch products on the market all adopt three-phase independent charged bodies distributed in a straight line or in a straight line. According to the principle of electric field distribution, the dividing line of the electric field distribution is a straight line connecting the three phases, and the electric field trajectory is a straight li...

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned patents proposed several switches with triangular distribution of contacts, most of which are three-phase common box-type high-voltage switches, which belong to the ultra-high voltage category above 40.5kV, but have not yet retrieved 12kV ~ 40.5kV medium and high voltage level three The high-voltage switchgear and high-voltage switchgear with phase-independent bodies in the shape of a character. The so-called three-phase independent body character distribution means that the three-phase high-voltage live bodies are arranged in an equilateral triangle position and distributed in high-voltage switch products.

Moreover, the problem solved by the above-mentioned switches with triangular distribution of contacts is roughly how to achieve the miniaturization of the volume, and the distribution of the electric field is not considered.

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