Electric Power Measurement Instrument

Abstract

The purpose of this research is to design, construct and find the efficiency of the electrical energy meter. It can measure the electrical energy used in 220 residential homes.  The researcher has designed. Built to measure 10 x15 x 8  inside, it consists of a series of circuits designed to calculate the amount of electrical energy used to store data on the SD Card. SD Card to calculate the electrical energy used each day by using Microsoft Excel processing program based on the principle of CT, which performs the power monitoring. Can measure the current up to 30A, output voltage 0-1  work with IC. IC24FJ64GA002 uses a 3.3V power supply which uses a 5  Voltage Regulator IC (LM7805) to provide power. PIC24FJ64GA002. Includes all 13 Ports and RTC DS1307 that can store seconds, minutes, hours, days, dates, months, and years. When using electricity, the machine generates Time.txt and Ft.txt files into the SD CARD. It can set the date and time it takes in the Time.txt file, such as hour/minute/day/month/year.

       The results of the energy efficiency test showed that the machine can measure the amount of electricity used in the unit. The monthly fee, FT fee, and the total electricity bill paid during the month compared to the PEA's electricity bill are approximately 99%.