Implementation of Protective Device for Lineman Protection in Real Time Operation

Abstract

This study suggests using an OTP-based password to operate an electrical switch. The duty of entering the secret password is connected to a keypad. Due to a lack of communication between the electric substation officials and the linemen's working team, the number of fatal electrical mishaps involving linemen is rising during electric line repairs. This suggested framework provides a solution that may ensure the lineman's safety. because the lineman has the authority to switch on and off. As a result, the system is set up so that a password is needed to turn the electrical switch on and off. To create a one-time password, the lineman must carry the RF-ID tag that will be placed into the RF-ID reader. The lineman will get the OTP. Lineman will trip the supply after the proper OTP has been inserted, and once it has been safely repaired, he may switch the supply on for the appropriate phase once again. The framework uses a microcontroller from the Arduino family for full control and operation. To input the secret one-time password, the microcontroller is interfaced with the matrix keypad. The password that is stored in the microcontroller's read-only memory is compared to the secret OTP that was input. Only electrical switches may be switched on or off if the OTP matches the one that was saved; if not, the incorrect password will be shown. The electrical switch's activation and deactivation are shown by a light-emitting diode. The user does not need to memorize the secret password because of the usage of EEPROM. To monitor lineman operations via SMS, the microcontroller is interfaced with the Global System of Mobile (GSM). A notification about the activation and deactivation of the electrical switch will be sent to a higher authority when the lineman trips the supply.