POWER FACTOR CORRECTION FOR 1 PHASE INDUCTION MOTOR USING PLC

Abstract

This Paper Describe the power factor Improvement of a induction motor using condenser operated through PLC, by improving the power factor of induction motor the energy saving measures are automatically achieved. Power factor is the value of a system that reflects how much power is being borrowed from Power Company for the system. If power factor becomes poor than unity, then organization or industry requires more current for supplying same amount of power.as the current increases line losses also increases because of voltage drop=I2R.Induction motor is widely used in industries due to their features like low cost, reliability, robustness. At no load induction motor has very low power factor of about 0.33 as the load goes on increasing the power factor also get improved as we go towards full load. Power factor correction serves to correct low power factor by reducing phase difference between voltage and current phasors.it is difficult to control the power factor of continuously varying load. This work is to make the system that wills correct the power factor by switching condenser bank through the PLC.