Electric energy quality on-line monitoring terminal

Abstract

An electric energy quality on-line monitoring terminal belongs to the technical field of a monitoring device. The invention especially relates to an electric energy quality on-line monitoring terminal and provides an electric energy quality on-line monitoring terminal which has the advantages of high measuring precision and convenient communication. The electric energy quality on-line monitoring terminal comprises a single-chip microcomputer, a measuring module, a touch screen, a memory card, a communication part, an isolation relay, an Ethernet controller, an RS485 interface and an RS232 interface. The main points of the structure are as follows: the single-chip microcomputer is respectively connected with the measuring module, the touch screen, the memory card, the communication part and the isolation relay, and the communication part is respectively connected with the Ethernet controller, the RS485 interface and the RS232 interface.

Description

technical field

[0001] The invention belongs to the technical field of monitoring devices, in particular to an online power quality monitoring terminal. Background technique

[0002] With the development of science and technology, the degree of electrification has increased, and many new equipment have relatively high requirements for power quality, and are extremely sensitive to voltage stability and electromagnetic interference. Power quality problems may affect the computer and communication, making the instrument abnormal and unable to operate normally, and the device with relay protection may also be misoperated and affect the normal system operation. Power quality monitoring has become a top priority, providing an important basis for improving power quality and power system fault diagnosis. The rapid development of microelectronics technology, the accelerated growth rate of processors, and the earth-shaking changes have taken place in the embedded field. In particula...

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