Restriking-less vacuum circuit breaker based on automatic tripping amplitude adjustment

Abstract

The invention discloses a restriking-less vacuum circuit breaker based on automatic tripping amplitude adjustment, which mainly comprises an operating mechanism, an insulated drive and support system, a vacuum arc-suppressing chamber unit, a support mechanism and a drive mechanism, the insulated drive and support system is mounted over the operating mechanism, the vacuum arc-suppressing chamber unit is mounted on the insulated drive and support system, the support mechanism is located between the vacuum arc-suppressing chamber unit and the insulated drive and support system, and is used for supporting the vacuum arc-suppressing chamber unit, the drive mechanism is connected with the operating mechanism and the insulated drive and support system, and the restriking-less vacuum circuit breaker is characterized in that a mechanical switching intelligent arcing controller for adjusting tripping amplitude is also arranged in the operating mechanism. By means of the scheme, the invention eliminates the necessary condition of the secondary restriking of the tripping of the vacuum circuit breaker, thus greatly enhancing the safety and reliability of the vacuum circuit breaker, and the invention is has high application value and popularization value.

Description

technical field [0001] The invention relates to a vacuum circuit breaker, in particular to a non-reignition vacuum circuit breaker which can effectively eliminate the restrike condition and which is automatically adjusted based on the opening amplitude. Background technique [0002] Vacuum circuit breaker is one of the common switchgears in electrical system. Its structure mainly includes operating mechanism, built-in vacuum interrupter unit and transmission mechanism, etc. Due to the existing vacuum circuit breaker has fast opening and closing speed and compact structure. , can quickly and effectively control the on-off characteristics of the electrical system, so it is widely used in various high-voltage electrical systems. [0003] However, in the opening process of the existing vacuum circuit breaker, affected by the instantaneous impulse, its opening amplitude is very large, which can easily cause the vacuum circuit breaker to automatically return to the closing positio...

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Problems solved by technology

[0004]The purpose of the present invention is to provide a non-reignition vacuum circuit breaker based on the automatic adjustment of the opening amplitude, which mainly solves the problem that the vacuum circuit breaker in the prior art is easy to open due to The problem of re-ignition caused by excessive amplitude

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