CN204857566U - Three-phase conjoined vacuum circuit breaker insulation - Google Patents

Abstract

The utility model belongs to the technical field of electric power system distribution equipment, a conjuncted vacuum circuit breaker insulating part of three -phase is related to. Including 3 arrangement pieces that are used for installing three -phase vacuum bubble respectively, 3 rear end ranges of settling the piece are installed on the base, the arrangement piece includes that the barrel that is used for installing vacuum bubble actuating mechanism that is located the rear portion steeps the arrangement chamber with the vacuum that is located the front portion, vacuum bubble settle the chamber for do not have the lateral wall, the open structure of ventilating, adjacent lateral wall and each vacuum bubble of each barrel settle the adjacent side in chamber to interconnect as an organic wholely mutually, the through -hole that is provided with the conducting rod that supplies the vacuum bubble between chamber and the barrel and passes is settled to vacuum bubble, install an electrically conductive inserts on the inner wall of through -hole, it stretches out the barrel to be connected with on the electrically conductive inserts to dew wiring end externally. When having less insulating nature, occupation space is little between each looks circuit breaker to the synchronism is good between each looks circuit breaker.

Description

Three-phase conjoined vacuum circuit breaker insulation

technical field

The utility model belongs to the technical field of electric power distribution equipment and relates to an insulating part of a three-phase conjoined vacuum circuit breaker.

Background technique

In the prior art, in order to ensure the insulation performance, the distance between the phases of the circuit breaker is relatively large and takes up a large space.

Contents of the invention

The technical problem to be solved by the utility model is to provide a three-phase conjoined vacuum circuit breaker insulating part with good insulation performance and small space occupation.

The insulating part of the three-phase conjoined vacuum circuit breaker of the present invention includes three placement parts respectively used for installing the three-phase vacuum bubbles, and the rear ends of the three placement parts are arranged and installed on the base; the placement parts include The cylinder for installing the vacuum bubble drive mechanism and the vacuum bubble placement chamber at the front, the vacuum bubble placement chamber is an open ventilation structure without side walls; the adjacent side walls of each cylinder and each vacuum Adjacent sides of the bubble placement chamber are connected to each other as a whole; a through hole is provided between the vacuum bubble placement chamber and the cylinder for the conductive rod of the vacuum bubble to pass through, and a conductive rod is installed on the inner wall of the through hole. An insert, the conductive insert is connected with a terminal protruding from the cylinder and exposed outside. While the circuit breakers of each phase have relatively small insulation, the occupied space is small, and the synchronization among the circuit breakers of each phase can be improved.

In order to facilitate debugging, a debugging port for debugging the vacuum bubble driving mechanism is opened on the cylinder body.

The insulating part of the three-phase conjoined vacuum circuit breaker is formed by integral casting.

Description of drawings

Fig. 1 is the perspective view of the utility model embodiment;

Fig. 2 is the front view of the utility model embodiment;

The sectional view of B-B direction in Fig. 3 Fig. 2;

Fig. 4 is a sectional view along A-A direction in Fig. 2 .

Detailed ways

As shown in the figure: an insulator for a three-phase conjoined vacuum circuit breaker, including three placement parts 01 for installing three-phase vacuum bubbles, and the rear ends of the three placement parts 01 are arranged and installed on the base 02; The placement part 01 includes a cylinder body 011 at the rear for installing a vacuum bubble driving mechanism and a vacuum bubble placement chamber 012 at the front, and the vacuum bubble placement chamber 012 is an open ventilation structure without side walls; Adjacent side walls of the body 011 and adjacent sides of each vacuum bubble placement cavity 012 are connected to each other as a whole; between the vacuum bubble placement cavity 012 and the cylinder body 011, there is a hole for the conductive rod of the vacuum bubble to pass through. A through hole 03 , a conductive insert 04 is installed on the inner wall of the through hole 03 , and the conductive insert 04 is connected with a terminal 041 protruding from the cylinder 011 and exposed outside.

The cylinder body 011 is provided with a debugging port 05 for debugging the vacuum bubble driving mechanism.

The insulating part of the three-phase conjoined vacuum circuit breaker of the cylinder body is formed by integral casting.

Claims (3)

1. An insulator for a three-phase conjoined vacuum circuit breaker, characterized in that it includes three placement parts (01) respectively used to install three-phase vacuum bubbles, and the rear ends of the three placement parts (01) are arranged and connected to the base (02); the placement part (01) includes a cylinder (011) at the rear for installing the vacuum bubble driving mechanism and a vacuum bubble placement chamber (012) at the front, the vacuum bubble placement chamber ( 012) is an open ventilation structure without side walls; the adjacent side walls of each cylinder (011) and the adjacent sides of each vacuum bubble placement chamber (012) are connected to each other as a whole; the vacuum bubble placement A through hole (03) is provided between the chamber (012) and the cylinder (011) for the conductive rod of the vacuum bubble to pass through, and a conductive insert (04) is installed on the inner wall of the through hole (03), so The conductive insert (04) is connected with a terminal (041) protruding from the cylinder (011) and exposed outside. 2. The insulator of the three-phase conjoined vacuum circuit breaker according to claim 1, characterized in that: the cylinder body (011) is provided with a debugging port (05) for debugging the vacuum bubble driving mechanism. 3. The insulator for a three-phase conjoined vacuum circuit breaker according to claim 1 or 2, characterized in that: the insulator for a three-phase conjoined vacuum circuit breaker is formed by integral casting.