Intelligent switch cabinet based on autonomous detection and control method thereof

Abstract

The invention relates to an intelligent switch cabinet based on autonomous detection and a control method thereof. The intelligent switch cabinet based on autonomous detection comprises a cabinet body, a plurality of switch contacts and electrical components, wherein the switch contacts and the electrical components are installed in the cabinet body. The cabinet body comprises a plurality of partition plates, an optical fiber temperature detector, a laser displacement sensor, a resistance measuring instrument and a microprocessor. The partition plates are vertically arranged to divide the cabinet body into a plurality of independent isolation chambers, each isolation chamber is provided with one humidity detector, the optical fiber temperature detector is arranged at the upper end of the switch contact, the laser displacement sensor is arranged in the switch contact, and the resistance measuring instrument is connected to the front end or the rear end of the switch contact in series. And the resistance measuring instrument, the optical fiber temperature detector, the laser displacement sensor and the humidity detector are electrically connected with the microprocessor. According to the intelligent switch cabinet based on autonomous detection, the flatness, the temperature and the resistance value of the switch contact can be autonomously detected, the contact is prevented from being overheated in all directions, and the intelligent switch cabinet has the fault self-repairing and circuit breaking protection functions.

Description

technical field [0001] The invention relates to the field of switch cabinets, in particular to an autonomous detection-based intelligent switch cabinet and a control method thereof. Background technique [0002] In recent years, there have been many accidents in substations where the contacts of the switchgear were overheated and the isolation contacts were burned. These accidents mainly come from the overheating of the switchgear contacts, which lead to internal burnout, and the overheating of the contacts is mainly due to the oxidation of the contacts after repeated use, which leads to the increase of the contact resistance, and the decrease of the damage and flatness of the contact surface, and the large heat generated by the power on again burns the contacts. head. The final cause of the accident is the lack of effective monitoring means and early warning means for the temperature rise of the switchgear isolation contacts. At present, in domestic substations, off-line ...

AI Technical Summary

Problems solved by technology

Its disadvantages are: this invention does not fundamentally solve the problem of contact heating, does not change the conditions of contact heating, does not detect the change of resistance of the contact, does not replace the contact in time after aging, and lacks regulation means

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