A Plateau Vacuum Circuit Breaker Embedded Pole

A technology of vacuum circuit breakers and solid-sealed poles, which is applied to high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., and can solve the problems of poor reliability, damage to solid-sealed poles, and low safety factor of plateau vacuum circuit breakers. Problems, to achieve the effect of low manufacturing cost, simple processing, and convenient installation

CN104538240BActive Publication Date: 2017-05-24NINGXIA LICHENG ELECTRIC GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-05-24

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Abstract

The invention relates an embedded pole of a plateau vacuum circuit breaker. The embedded pole comprises an embedded pole body (1) and a base (3) connected with the embedded pole body (1). An insulating pull rod (4) is arranged in the middle of the embedded pole body (1). The embedded pole is characterized by further comprising an insulating sealing element (2). One end of the insulating sealing element (2) is connected with the insulating pull rod (4), the other end of the insulating sealing element (2) is connected with the embedded pole body (1) and the base (3), and then an embedded pole inner cavity can be sealed. The embedded pole has the advantages that the insulating sealing element has a tower-shaped layered cross section and is pressed between the embedded pole body of the plateau vacuum circuit breaker and the base of the plateau vacuum circuit breaker, so that the creepage distance is increased, the insulating performance is improved, and the destructive discharge phenomena of creepage, flashover and the like are effectively avoided.
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Description

technical field

[0001] The invention relates to a solid-sealed pole of a plateau type vacuum circuit breaker. Background technique

[0002] The plateau type vacuum circuit breaker is a switching device that turns on and off the no-load and load current in the high-voltage circuit, and can quickly cut off the fault current. As the core component of the plateau type vacuum circuit breaker, the solid-sealed pole has poor reliability and low safety factor in the harsh environment, especially in the environment with wind, sand, humidity, pollution and high altitude, the inner surface of the solid-sealed pole and the surface of the insulating rod It is easy to cause flashover, creepage and other phenomena to cause destructive discharge and damage the solid-sealed pole.

[0003] Therefore, there is an urgent need for a plateau vacuum circuit breaker solid-sealed pole that is resistant to moisture, condensation, and pollution in the above-mentioned environment, so as to realize the...

Examples

Embodiment Construction

[0020] Such as figure 1 , 2 , 3, and 4, the present invention provides a plateau type vacuum circuit breaker embedded pole, including an embedded pole body 1 and a base 3 connected by screws 5, in the middle of the embedded pole body 1 An insulating pull rod 4 is provided, and an insulating seal 2 is also included. One end of the insulating seal 2 is connected to the insulating pull rod 4 with an interference fit, and the other end is respectively connected to the solid-sealed pole body 1 and the base 3 so as to The inner cavity of the solid-sealed pole is sealed.

[0021] Wherein the insulating seal 2 is composed of a tubular upper part and a ring-shaped lower part, which is shaped like a straw hat with an open top. There are two annular second grooves 9 at the outer lower end of the insulating pull rod 4, and an annular first groove 7 at the bottom of the solid-sealed pole body 1, and an annular first groove 7 at the top of the insulating seal 2. There are two ring-shaped...