• Dharminder Kumar

A password-based circuit breaker control system is one in which the sole provided password is used to operate the circuit breaker and switch on/off the supply of a certain line. There is also an option to change or reset the password here. An 8-bit microcontroller from the 16F877A family is in charge of the system. The password is saved on the microcontroller in an EEPROM (Electrically Erasable Programmable Read-Only Memory). The lineman's mobile phone is connected to the system through a GSM (Global System for Mobile Communications) module, which allows him to input the password for turning on/off the circuit breaker from any place. A keypad is used to manually input the password or to change/reset the password using the preset pin supplied to the substation's head. An alarm will be triggered if an incorrect attempt to open the circuit breaker is made, such as by entering the wrong password. This technique allows the lineman to fix the connection more safely, and after he's finished, he can switch the line back on using the password from his phone. This protects the worker's safety because no one can turn on the power without his authorization. This may also be used by businesses when they are dealing with equipment or wiring issues. Although there has been much research work on making a password-based circuit breaker in the past, this system provides an overall solution but there is a potential for more research in this field in the future.

Circuit Breaker, GSM Module, Lineman, Microcontroller, Password.

"A Switching Technique of Circuit Breaker Using Password", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.394-399, September 2018, Available :http://www.jetir.org/papers/JETIRFH06065.pdf

"A Switching Technique of Circuit Breaker Using Password", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp394-399, September 2018, Available at : http://www.jetir.org/papers/JETIRFH06065.pdf