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Nowadays, the control over every minimal cost is being very important for the market competition. Since the electric energy bills represent a great amout of exepenses for the companies, the monitoring of the power quality helps to lower the energy costs and to prolong the machine's lifes. But, not every company can pay for an expensive resource that helps to minimaze the expenses. This paper presents studies and development of a low cost electrical energy monitoring system, that consists of a digital energy meter, a software for the system management, a database to store the measurements and a WebPage to monitor the energy quality from anywhere, through the internet. Algorithms of calculus are proposed for implementation. Physical environment and communication protocol are also proposed. Programming languages are studied and used to develop the software and database.
Date of Conference: 2-5 Sept. 2007