Temperature and humidity control system working state monitor

Abstract

The invention relates to a temperature and humidity control system working state monitor. According to the structure of the temperature and humidity control system working state monitor, a receiving terminal of a data acquisition loop is connected with a temperature and humidity control system through a wiring terminal strip, the output end of the data acquisition loop is connected with the inputend of an A / D conversion module, the output end of the A / D conversion module is connected with a single chip microcomputer, the output end of the single chip microcomputer is connected with a gated trigger circuit and a direct-current contactor in sequence, and the output end of the direct-current contactor is connected with a buzzer. A crystal oscillator clock chip is connected with the single chip microcomputer. The temperature and humidity control system working state monitor executes analog-digital conversion by acquiring seven analog quantities of the temperature and humidity control system, then utilizes a single chip microcomputer program and a gate circuit to judge a working state of the temperature and humidity control system, can give remote and local alarms in time in a fault state of the temperature and humidity control system and ensures safe and stable operation of devices and power grids.

Description

technical field [0001] The invention relates to an automatic monitoring device, in particular to a temperature and humidity control system working state monitor, which is mainly used in monitoring the temperature and humidity installed in switch cabinets, mechanism boxes, terminal boxes, and control cabinets of various voltage levels in the power system. The operating status of the control system, especially in places where the operating conditions are harsh and the temperature and humidity control system is put into operation throughout the year, resulting in a high component failure rate. Background technique [0002] The temperature and humidity control system is a secondary auxiliary equipment commonly used in power systems. It is installed in closed screen cabinets such as switch cabinets, mechanism boxes, terminal boxes, and control cabinets to ensure that the temperature and humidity of the sealed environment meet the environmental requirements of electrical components...

AI Technical Summary

Problems solved by technology

Due to the large number of bases, and 90% of the annual power-on operation, the failure rate is also high, and the total number of defects ranks first among all types of equipment defects. Both are far behind the defect occurrence time, burying hidden dangers for safe production

In recent years, due to the failure of the temperature and humidity control system, the corrosion of mechanical components, operation jamming, abnormal working status of electronic components, terminal block corrosion, insulation drop and various derivative faults have occurred from time to time, seriously threatening the safe and stable operation of the power grid.

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