Development of load control and management system

This paper presents the conservation of electrical energy in building with the technique to develop load control and management system in order to adjust load factor of system. Using the limiting and controlling the maximum demand, we can acquire the prediction and compare it to the maximum demand set point. This system consists of a computer which works as controller, processor and database unit and works with digital power meter informing of multidrop network by serial communication via RS-485. The control system use PLC to control load via serial communication RS-485. The data of measurement such as voltage, current, power, power factor, energy, etc., can be saved as a database and analysed. The load factor adjustment by limiting and controlling maximum demand can reduce the cost of electric consumption and energy generation.