Circuit breakers are widely used by electricity Transmission authority, In the traditional way circuit breaker is installed in the locked box, and authorized person can break the circuit by using key. but this method have some disadvantages due to security issues.Here we are introducing a password based circuit breaker. the main advantage of this project is that circuit can be broke by entering the password only.
In this project a microcontroller is used as a controller circuit, which is dedicated to control the Relay. A LCD and keypad are also attached with microcontroller for used interface, we need to type the right password for breaking, circuit can be also linked by entring write password.