Model No. 254: This project is designed to check the sequence of the 3 phase supply. In this project direct 3-phase AC supply 50Hz is fed through voltage drop arrangement duly stabilized by zener diodes to a logic circuit comprising of NAND gates and OR gates to detect the proper sequence of RYB by series of pulses of fixed duration. <br />For more information about this project, kindly visit http://www.edgefxkits.com/phase-sequence-checker-for-three-phase-supply
