Over-Voltage Protection Circuit for Tripping & Switching of 220V Appliances Using Relay Moduleand Python-Based Algo Journal title: International Journal of Innovations in Science and Technology Authors: Ehtisham Arshad, Raja Masood Larik, Syed Aqeel Haider, Attaullah Khidrani, Asad Amjad, Usman Humayun... Subject(s): Computer and Information Science