Solid-sealed polar pole realizing on-line monitoring of vacuum degree

Abstract

The invention discloses a solid-sealed polar pole realizing on-line monitoring of vacuum degree. The solid-sealed polar pole comprises a vacuum arc extinguish chamber, an ion column and a vacuum sensor, wherein the vacuum sensor is arranged at the top part of the vacuum arc extinguish chamber; the ion column is arranged at a side wall of the vacuum arc extinguish chamber; one end of the ion column is connected with the ground; the other end of the ion column is connected with the upper end of the vacuum sensor; a permanent magnet is arranged outside a working chamber of the vacuum sensor; and the vacuum arc extinguish chamber, the ion column, the vacuum sensor and the permanent magnet are solidly sealed integrally through epoxy resin. According to the solid-sealed polar pole, a vacuum degree on-line monitoring technology of the vacuum arc extinguish chamber is combined with an epoxy solid-sealing technology; the installation and fixation modes of the ion column are considered in the internal structure; and the ion column is encapsulated into solid-sealed polar pole by using epoxy resin, so that the on-line monitoring on the vacuum degree of the vacuum arc extinguish chamber of a vacuum switch under the use state is realized. And moreover the vacuum switch has the capacity of detecting a fault precursor, an early warning or an alarming message can be sent out in time before the fault actually happens, so that the happening of an accident is prevented.

Description

technical field [0001] The invention relates to a solid-sealed pole, in particular to a solid-sealed pole with on-line vacuum degree monitoring, and belongs to the technical field of solid-sealed poles. Background technique [0002] In the field of medium voltage, especially 12KV and 40.5KV voltage levels, vacuum switches have been widely used in power transmission and distribution systems in electric power, metallurgy, chemical industry, mining and other departments. At present, the solid-sealed pole in the high-voltage vacuum circuit breaker includes a vacuum interrupter and an epoxy resin insulator, and the vacuum interrupter is embedded in the epoxy resin insulator. When the high-voltage vacuum circuit breaker is working, the vacuum degree in the vacuum interrupter must be greater than a certain vacuum degree. Only when the vacuum degree in the vacuum interrupter is greater than a certain vacuum degree can the high-voltage vacuum circuit breaker work normally, otherwise ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a solid-sealed pole with on-line monitoring of vacuum to solve the technical problems that the vacuum switch cannot realize early warning, and the off-line monitoring cannot monitor the vacuum in real time, so as to effectively solve the above-mentioned prior art problems in

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