Automatic Changeover Switch for Power Sources

Gaza Strip gets its power supplies from three sources where two of them are controlled by Israel. Over the last seven years, Gaza has been under unjust and strict siege where fuel and electricity have been limited. Gaza Strip suffers from daily scheduled electric power outages. Many of the 1.6 million Palestinians residing in the Gaza Strip must cope with scheduled electricity cuts of 6-8 hours daily; thus, a need for standby generator. Switching between utilities power supply and the standby generator is mostly done manually. This paper designs and implements a low cost automatic changeover system that can be used mainly in residential places.