Protection of 3-Phase Induction Motor with Automatic Power Factor Corrector (APFC)

The intrinsic aim of this paper is to protect an Induction motor (IM) against various culpability like Over voltage, Over current, under voltage, Single phasing. The Protection of motor from such faults is very essential, because faults can diminished its efficiency. IMs can be saved using some ingredients, such as timers, contactors, voltage, and current relays. We are using the microcontroller based circuit for capability detection and it will save the motor from sundry faults. The power demand is raising day by day as the industrial load is raising. In modern power network cater to a wide variety of electrical load and power electronics loads, which fabricate a varying power demand on the supply network and warp the network environment. It is request of automatic switching operation of the worthy capacitor depending upon the load fluctuations without manual peacemaking. It can be peel by using APFC network which can maintain consistently large factor nearer to unity. Majority of load are inductive in nature in industries. So they ingest reactive power which influence the generation of plant. To give this subsidiary power we entail to raise generation or raising KVA rating of transformer.