SEGMENTATION OF LOAD GROUPS ON A SINGLE PHASE KWH-METER USING THE PAYLOAD DATA HANDLING SYSTEM

A minimum system that controlled by microcontroller has been established for load groups segmentation on a single-phase kWH-meter using the payload data handling system. Minimum system that controlled by microcontroller is integration of all entities through handshake mechanism for hardware and software. Handshaking the hardware in the form of a board for microcontroller ATMega32 with the availability of five ports each for 5 volt dc power connector, sensor, LCD 4x16, downloader, and output. The handshaking the software is the presence of programming to the ATmega32 microcontroller for system operation based-on BasCom language programming through seven stages: (i) pins configuration, (ii) variable declaration, (iii) declaration of constants, (iv) initialization, (v) main program, (vi) retrieve and send data, and (vii) output. System performance is shown, that the selection of electric load groups is very important, in order to know the value when measuring and remain accurate, not changing. Control system based-on payload data handling is capable of applying the value of the current of several examples of electric load group points according to the ability of the sensor. One current value with a value of 0.40 or equivalent to a voltage value of 4.47 volts is indicated, that the control system for example of electric load group point by measuring the current value can be considered feasible, if the voltage value is in the range of 220 volts ac.