Password Based Circuit Breaker


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The project is designed to control a?circuit breaker?with help of a password only. A keypad is connected to the project to enter the password. Fatal electrical accidents to the line man are increasing during the electric line repair due to the lack of communication and co-ordination between the maintenance staff and the electric substation staff.

This proposed system provides a solution, which can ensure the safety of the maintenance staff e.g. line man. The control to turn ON/OFF the line lies with the line man only. This system has an arrangement such that a password is required to operate the circuit breaker (ON/OFF). Line man can turn off the supply and comfortably repair it, and return to the substation, then turn on the line by entering the correct password.

The system is fully controlled by a microcontroller from 8051 family. A matrix keypad is interfaced to the microcontroller to enter the password. The entered password is compared with the password stored in the ROM of the microcontroller. If the password entered is correct, then only the line can be turned ON/OFF. Activation / deactivation of the circuit breaker is indicated by a lamp (ON/OFF).

Further the project can be enhanced by using an EEPROM for user to change the password for a more secured system. It can also be interfaced with a GSM modem for remotely controlling the electronic circuit breaker via SMS.

Hardware Requirements

  • 8051 series Microcontroller
  • Relay Driver IC
  • Relays
  • Matrix Keypad
  • Crystal
  • Resistors
  • Capacitors
  • Diodes
  • LED
  • Transformer
  • Voltage Regulator
  • Lamps

Software Requirements

  • Keil compiler
  • Language:Embedded C or Assembly


Q.What is the validity of the course?
Ans: It will be valid till one month from date of registration.
Q. Will the course cover hardware description?
Ans: Yes. It will cover hardware too.
Q. How many times lectures can be watched?
Ans: You can access a video lecture n no. of times during validity of your course.
Q. Will I get the certificate after completion of my course?
Ans: Yes every candidate will be awarded with certificate of training within two weeks after completion.
Q. Can I use this website in my mobile phone?
Ans: Yes but pc mode will be preferable for better understanding.
Q. Can we learn from other user registration id?
Ans: No. because we will trace the IP address of your pc, laptop, mobile if it is found unmatched with the registered id, registration will cancelled automatically and user will debarred from all services including certification.
Q: Will we get software package.
Ans: Yes u will get software package before proceeding to tutorials with how to install notes.

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