Small infrared power factor monitoring device for high-power industrial equipment

Abstract

The invention relates to a small infrared power factor monitoring device for high-power industrial equipment. The small infrared power factor monitoring device comprises a signal detection processing part and a signal conversion receiving part; the signal detection processing part comprises a primary current transformer, a secondary current transformer, a three-phase voltage signal, an SoC embedded module, an infrared laser wireless transformation circuit, an operation panel, a display interface and a power circuit; the signal conversion receiving part comprises an infrared laser wireless receiving circuit and a USB (universal serial bus) conversion circuit. The small infrared power factor monitoring device is reasonable in structure and convenient in use, electromagnetic interference in small signals can be effectively avoided for the monitoring device, greater protection measurement range is guaranteed, and measurement accuracy is high.

Description

technical field [0001] The invention relates to the field of electric power and industrial automation monitoring, in particular to a small infrared power factor monitoring device for high-power industrial equipment. Background technique [0002] There are two types of electric power supplied by the grid power supply to the load: active power and martial power. Active power is the electric power required to maintain the normal operation of electrical equipment, that is, the electric power that converts electric energy into other forms of energy (mechanical energy, light energy, heat energy); Reactive power is the electrical power used to create and maintain magnetic fields in electrical equipment for the electric and magnetic fields within a circuit. [0003] The ratio of active power P to apparent power S is called power factor cos(ψ), and the angle ψ refers to the phase difference between voltage and current. In the operation of the power network, the power factor reflects...

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: In order to overcome the safety hazard caused by the direct connection between the secondary output high voltage of the usual high-voltage electromagnetic current transformer and the power metering and display instrument, the infrared communication power factor monitoring device for high-power industrial equipment is provided. A small infrared power factor monitoring device for high-power industrial equipment is developed. It is a power factor detection device with high safety, low power consumption and light size, which solves the problem of low safety of existing monitoring display, large measuring instrument and the size of the device to be measured. Power equipment binding installation and other issues

Images