POWER SAVER FOR INDUSTRIAL & COMMERCIAL ESTABLISHMENT”

Abstract

This project is used for the purpose of power saving for industrial and commercial
establishment. Power factor is defined as the ratio of real power to apparent power. Where real
power is the time integral of the instantaneous power measured over a full period and the
apparent power is simply the product of the RMS voltage and RMS current measured over the
entire period.
The time lag between the zero voltage pulse and zero current pulse duly generated by suitable
operational amplifier circuits are fed to two interrupt pins of the microcontroller where the
program takes over to actuate appropriate number of relays at its output for bringing shunt
capacitors into the load circuit to get the power factor till it reaches 0.95.