Multifunctional three-phase electric power monitoring apparatus

Abstract

The invention discloses a multifunctional three-phase electric power monitoring apparatus, and belongs to the technical field of power utilization safety and energy conservation. The multifunctional three-phase electric power monitoring apparatus comprises a micro-control unit, and a power supply unit, a Lonworks intelligent transceiver, a relay control module, a power utilization measurement chip, a cable temperature detection circuit, a data storage circuit and a high-precision real-time clock circuit that are connected with the micro-control unit separately. The multifunctional three-phase electric power monitoring apparatus has the functions of monitoring the voltage, current, power, power factors, leakage current, cable temperature, harmonic components and electric energy measurement, high-precision calendar clock, and the like; alarm threshold values can be set for all monitored parameters; an alarm can be sent out when parameter overrun occurs, and the system power supply can be configured to be switched off in case of alarms; various electric energy related parameter data is provided for performing evaluation and analysis for building electric energy quality; and in addition, automatic power supply or power off control can be carried out according to set time frames or remote instructions; and the energy conservation control for buildings satisfies the philosophy of green buildings.

Description

technical field [0001] The invention belongs to the technical field of electricity safety and energy saving, in particular to a multifunctional three-phase power monitoring device. Background technique [0002] With the rapid development of my country's economy and the improvement of people's living standards year by year, the consumption of various electrical equipment and household equipment has increased sharply, and electrical fire accidents have also shown an increasing trend year by year. According to statistics, electrical fire accidents in the country are close to 30% of the total fire accidents, ranking the first among all kinds of fires, causing huge losses to the country and people's lives and properties. [0003] Electrical fires are mainly caused by high temperature, electric sparks and arcs caused by electrical lines or electrical equipment overload, short circuit, leakage, excessive contact resistance or insulation breakdown. According to the on-site investig...

AI Technical Summary

Problems solved by technology

However, in the past five to ten years, with the development of modern science and technology, various new, efficient, and multi-functional commercial electrical equipment have been continuously updated, making nonlinear loads based on power electronic devices in typical public buildings such as commercial office buildings The application of electric energy is becoming more and more extensive, and the factors causing power quality problems are gradually increasing, which poses a serious threat to the safe and reliable operation of various complex, sophisticated, and power quality-sensitive electrical equipment that is also rapidly popularized.

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