Low-voltage cabinet measurement and control system

Abstract

The invention discloses a low-voltage cabinet measurement and control system. The low-voltage cabinet measurement and control system comprises a temperature sensor, a humidity sensor, a cabinet door position sensor, an intelligent molded case circuit breaker, third-party equipment, in-cabinet ventilation equipment, a power supply module, a sensor data acquisition module, a display key module, a communication module I, a communication module II, a switching value input module, a switching value output module, an analog quantity output module and a processing unit; through association with the intelligent molded case circuit breaker and related sensors, an external current sensor in the cabinet is saved, a temperature controller in the cabinet is saved, connecting wires in the cabinet are saved, and since the intelligent molded case circuit breaker provides voltage, current, electric quantity, harmonic wave, power and power factor, the intelligent molded case circuit breaker also provides state and event information of the switch body. Multiple functions of setting parameters of the intelligent molded case circuit breaker, monitoring the temperature and humidity in the cabinet, starting ventilation equipment and the like are achieved, the purposes of reducing the cost and increasing the efficiency of the low-voltage cabinet are achieved, and digital integration of the low-voltagecabinet is promoted.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, and in particular relates to a low-voltage equipment measurement and control technology. Background technique [0002] With the deepening of the Internet of Things, the requirements for intelligent equipment in the field of low-voltage power distribution are increasing. In traditional low-voltage cabinets, external CTs are installed on the busbars, and the signals of the external CTs are connected to the electric energy meter to display the voltage and current of the circuit. , power, electricity, etc., this solution needs to install an external CT in the low-voltage cabinet and the wiring is more complicated. With the continuous development of intelligent switches, the configuration scheme in the low-voltage cabinet cannot meet the requirements. Contents of the invention [0003] In order to solve the problems existing in the prior art, the present invention proposes a low-voltag...

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Problems solved by technology

[0002] With the deepening of the Internet of Things, the requirements for intelligent equipment in the field of low-voltage power distribution are increasing. In traditional low-voltage cabinets, external CTs are installed on the busbars, and the signals of the external CTs are connected to the electric energy meter to display the voltage and current of the circuit. , power, electricity, etc., this solution needs to install an external CT in the low-voltage cabinet and the wiring is more complicated

With the continuous development of intelligent switches, the configuration scheme in the low-voltage cabinet cannot meet the requirements

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