This project aims at continuously monitor the load conditions of the substation. It also monitors the temperature of the devices present in the substation.
This project is also designed to protect the electrical circuitry by operating an Electromagnetic Relay. This Relay gets activated whenever the electrical parameters exceed the predefined values. The Relay can be used to operate a Circuit Breaker to switch off the main electrical supply.
If the load increases beyond the substation’s rated capacity, the microcontroller will automatically shut down the substation and intimates the same to the operator by sending a message through a GSM modem.
If the temperature of the substation increases, then the microcontroller will automatically start the cooling system for the substation. At any point, if the operator wants to know the loads conditions and the temperature, he has to send a predefined message to the modem which is interfaced with the microcontroller and the controller acknowledges the operator with the required information.
Thus, this is a simple and low-cost type of GSM-based project that helps students to get a basic idea about the substation automation.