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

Abstract

The invention provides a high-voltage switch with three-phase bodies in delta-shaped distribution. The switch comprises three-phase bodies, an operating mechanism and a transmission mechanism, whereinthe three-phase bodies are delta-shaped distribution; any of the bodies comprises an isolated static contact, an isolated crank arm, an isolated moving contact, an incoming soft connection and a switch body; the isolated static contact is located at the top of the body, the isolated moving contact is disposed at the inner end of the isolated crank arm, the isolated crank arm is pivotally connected below the isolated static contact and is in contact with the isolated static contact at the position where the isolated crank arm is rotated to a predetermined position, and the switch body is located below the isolated moving contact and is connected to the external end of the crank arm by the incoming soft connection. The high-voltage switch adopts a structure of three-phase bodies in delta-shaped distribution to realize uniform distribution of electric field intensity of the high-voltage switch, and a reasonable transmission mechanism is designed to make the operation more convenient andreliable.

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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