Power Load Control

With the development of national economy and improvement of the people's living standards, the continuous improvement of the whole social information and electrization, power supply, as the foundation of national economy, its automatization become more and more important. So the national electric administrative departments thirst for the electric equipment to be integrative, intellective and automated, hoping to manage the distribution system more scientific. That is also the new trend in which the electric industry develops . In the other side, with the astonishing fly of information and digital technology, increasing market in the field of Internet and multimedia, wide band communication net and wireless communication industry won a rapid development. With the ability to bridge the gap between these two net, GPRS is increasingly getting the potential markets in embedding systems.Power supply impacts almost every aspect of our society. Power load control is the tide to realize the automation of the power system. It is the comprehensive advanced technology which contains modern electronic technology, communication technology, network technology and control technology. It support remote read, protect and control the distribution system in the case of abnormal and accident. Its usage will improve the effective of supply service, lift the enterprise's economic profit and benefit both side of supply enterprise and customer.This article introduces a kind of power load management system on the basis of GPRS network. The system is consist of measurement, communication, data process and control. It makes use of the GPRS network to speed up communication. Its interface complies with electric communication protocol, easily embedded to standard electric networks. It can measure and record the phase voltage, electric current, active power, reactive power, power factor, the time of voltage exceeding the limit, net loss statistic of the locale equipment. In addition, it inspect and control the switch, alarm the exceeded voltage and electric current etc.