Design Of Power Quality Monitor PQ104

The level of environment quality is a significant symbol of human existent and society development, the electromagnetism environment is also an important component part of human existent and society development environment, however, the power quality is important component part of the quality of electromagnetism environment, which making the electric equipment can't supply electricity is the power quality.The power quality include frequency, harmonic wave, voltage deviation, voltage dip and rising, voltage fluctuating and flashing, unbalance of three kinds of voltage and voltage's changing.Electric power is one of product who is using in large scope , high value and more quantity in modern society. As the development of science skill, on one hand, the elements which cause the power quality have increased continuously, for example, the electric device's using who is on behalf of the nonlinear load, the beginning and stop of all kinds of big electric equipments bring many problem for electric energy. On the other hand, many complicated, precise and electric equipments which are sensitive for the power quality become more and more frequency, such as high performance family electrical appliances, handle official businesses, precise test instruments and auto-control equipments in the process of precise producing , all of v/hich put forward higher and higher requirement toward the power quality, and the power quality affects human life and the running of GDP's safe directly.The instrument in survey and analysis of the electricity quality who main monitor stable or temporary state electricity quality index. As the development of GDP, in high technology enterprise, especially, in IT and IC field that raise higher and higher requirement to the power quality. It is more important to the voltage hollow and dip, also to the judgement and analysis of flash changing, such as brief interrupt.This product has two parts, one is hardware, the other is software, both of which besides use to temporary state analysis of harmonic wave, efficiency, fluctuating and...