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International Journal of Advanced Engineering, Management and Science

Operation of Circuit Breaker with the help of Password

( Vol-2,Issue-3,March 2016 )

Author(s): Avadhesh Sharma, Ankit Vijayvargiya, Chandraveer Singh Rathore, Deepak Raj Nagar, Dhirendra Singh, Gaurav Ranka, Himanshu Khandelwal

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Page No: 01-03
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Capacitors, Diodes, EEPROM, Microcontroller, Rectifier, Relay, Relay Driver ,Resistors, Transistors, Voltage Regulator.


A circuit breaker is an electrical switch use to protect an electrical circuit from damage caused by faults. Its basic function is to detect a fault condition and protect from it. Fuse operates once after that it must be replaced but a circuit breaker can be reset to resume normal condition. During the manual operation, we see inoperable electrical accidents to the line man are rises during maintenance due to improper communication between the maintenance staff and the substation staff. In order to prevent such accidents, password based circuit breaker is design so that only authentic person can operate it with a password. There is also a facility of changing the password. The system is fully controlled by the microcontroller. The password is saved in an EEPROM, interfaced to the microcontroller and the password can be changed any time. A keypad is used to submit the password and a relay to operate circuit breaker, which is indicated by a bulb. Any wrong attempt to open the circuit breaker by entering the wrong password an alert will be shown in the LCD.

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