Serial connection structure of high-voltage vacuum arc extinguish chambers

Abstract

A serial connection structure of high-voltage vacuum arc extinguish chambers overcomes the problem of the unsatisfied higher voltage class requirement due to the adoption of one single disconnected vacuum arc extinguish chamber in the existing high-voltage vacuum circuit breaker. The serial connection structure is characterized by comprising 2-5 of high-voltage vacuum arc extinguish chambers, every two high-voltage vacuum arc extinguish chambers are connected in series through a connecting flange, an intershield flange, an intermediate electric conductor, an intermediate linear bearing and a long connecting guide shaft, the right side of the high-voltage vacuum arc extinguish chamber at the most right side is connected with a tail end static conductor and a rear end cover, the left side of the high-voltage vacuum arc extinguish chamber at the most left side is provided with a front end cover, and end cover shielding flanges are respectively arranged on insulation shielding cases at the most left side and the most right side. The serial connection structure has the beneficial effects that 2-5 of single disconnected high-voltage vacuum arc extinguish chambers are connected in series to use, so a higher voltage class can be reached, the technical difficulty is reduced, the manufacturing cost is saved, moreover, the serial connection structure has good interchangeability and is convenient to install, and 2-5 high-voltage vacuum arc extinguish chambers of low voltage class can also be utilized to replace one high-voltage vacuum arc extinguish chamber of high voltage class to be used.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electrical appliances, and in particular relates to a series structure of high-voltage vacuum interrupters. Background technique [0002] In the prior art, most high-voltage vacuum circuit breakers use a single-break vacuum interrupter for breaking. At present, the single-break high-voltage vacuum interrupter has reached a voltage level of 126kV, but the processing of this single-break high-voltage vacuum interrupter is difficult. , the manufacturing cost is high, and at the same time, it cannot meet the requirements of higher voltage levels. The patent application with the application number 201010147463.2 discloses a double-break vacuum interrupter, which includes an insulating shell, a static assembly and a moving assembly arranged in the insulating shell, wherein the upper rib of the inner cavity of the insulating shell is provided with a middle The isolation shield, the intermediate iso...

AI Technical Summary

Problems solved by technology

As shown in the accompanying drawings of the application specification, the above-mentioned structure is to place the double breaks in the inner cavity of an insulating shell, that is, there are one static component and two moving components in the inner cavity of an insulating shell. This structure is difficult to manufacture. The operation is complicated, and it is impossible to use two or more vacuum interrupters in series

Images