The research on the automatic phase selector primarily focused on developing a highly efficient system capable of maintaining an uninterrupted power supply. Its goals included optimizing power delivery, improving reliability in distribution, enhancing power management efficiency, enabling remote monitoring, and ensuring both safety and regulatory compliance. The device was built upon existing designs found in literature, which were modified to incorporate advanced features such as automatic phase detection and switching, reduced energy loss, improved efficiency, and enhanced power factor correction. Key components used in the construction include a transformer, LM741 operational amplifier/comparator, relay switch, resistors, 100 μF 35V electrolytic capacitors, a 10 kΩ variable resistor (potentiometer), IN4007 diodes, 5.1V zener diodes, a display module, and indicator lights. The design approach was informed by expert technical advice and online research into current models of automatic phase selectors. This device is suitable for a range of uses, including industrial power systems and renewable energy setups, offering a dependable, efficient, and cost-effective solution for contemporary power distribution needs.
Dodo et al. (Sun,) studied this question.