Solid-sealed polar pole for intelligent vacuum breaker

Abstract

The invention discloses a solid-sealed polar pole for an intelligent vacuum breaker. The solid-sealed polar pole comprises a vacuum arc-extinguishing chamber, an upper outlet conducting end and an epoxy resin casing. A resistance type voltage divider and a vacuum sensor are embedded in the epoxy resin casing, the resistance type voltage divider is in conducting connection with the upper outlet conducting end, a probe of the vacuum sensor is arranged in the vacuum arc-extinguishing chamber, and at a leading-out end of the epoxy resin casing, signal lines of the vacuum sensor and the resistance type voltage divider are jointly arranged at the position of a socket for being connected with a control unit. The vacuum sensor and the resistance type voltage divider can serve as signal acquisition sources of an intelligent controller, the shortcoming that a traditional product is merely an executing mechanism of a whole circuit is overcome, the vacuum sensor can timely and accurately monitor changes of the vacuum degree of the vacuum arc-extinguishing chamber, and using safety of the solid-sealed polar pole for the intelligent vacuum breaker is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of design and manufacture of medium and high voltage switchgear, and in particular relates to a solid-sealed pole of an intelligent vacuum circuit breaker. Background technique [0002] Among the existing solid-sealed poles, there is one such as the Chinese patent "An Intelligent AC Vacuum Circuit Breaker Solid-sealed Interrupter Pole" (patent application number CN200610067561.9, patent publication date September 19, 2007) The pole of this intelligent AC vacuum circuit breaker is mainly composed of a vacuum interrupter, a conductive end of the lower outgoing line, a conductive end of the upper outgoing line, a casing, a capacitive voltage sensor, and a signal lead-out line. The casing and the vacuum extinguisher A buffer layer is arranged between the arc chambers, the outer shell tightly wraps the vacuum interrupter, and a capacitive voltage sensor is wrapped in the outer shell near the outer layer of the v...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an intelligent vacuum circuit breaker with a solid-sealed pole. The interior of this intelligent vacuum circuit breaker with a solid-sealed pole can solve the problem of resonance in the prior art and the decrease in the vacuum degree of the vacuum interrupter that causes the entire intelligent The Problem of Loss of Working Ability of Embedded Pole of Vacuum Circuit Breaker

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