The purpose of this project is to monitor the transformer health using microcontroller. The parameters that will be monitored include the voltage, current, temperature, frequency and oil level and display these values on LCD module. A microcontroller is a small computer on a single integrated circuit consisting internally of a relatively simple CPU, clock, timers, I/O ports, and memory. Program memory in the form of flash, RAM and ROM is also often included on chip. Microcontrollers are designed for dedicated applications. Wi-Fi (Short for Wireless Fidelity) is a wireless technology that uses radio frequency to transmit data through the air. Wi-Fi has initial speeds of 1mbps to 2mbps. Wi-Fi transmits data in the frequency band of 2.4 GHz. It implements the concept of frequency division multiplexing technology. Range of Wi-Fi technology is 40-300 feet. ThingSpeak is an open-source Internet of Things (IoT) application and API to store and retrieve data from things using the HTTP protocol over the Internet or via a Local Area Network. This IoT device monitors the SOLAR parameters like voltage, current and energy meter readings like KWH, watt, current. It continuously monitors the data and updates them to an IoT platform. We can increase the monitoring techniques by making use of advanced technology. This project consists of a Microcontroller based control system, sensors for various electrical parameters and sensor for temperature measurement. The analog and digital inputs from respective sensors are sent to the microcontroller. Microcontroller process this raw data and converts into human readable format and displays on LCD display and also sending this data into the thingspeak clod through esp8266 Wi-Fi module.  Microcontroller continuously checks the data being read and takes necessary action if the read values exceed the preset limits. The action could be opening of a circuit breaker and active the buzzer for alerts.

 

The major building blocks of this project are:

• Regulated Power Supply.
• PIC Microcontroller.
• ESP8266 WI-FI module.
• LCD display with driver.
• Electromagnetic Relay with driver.
• Temperature Sensor.
• Voltage Sensor.
• Current Sensor.
• Optocoupler (Frequency).
• Ultrasonic sensor (oil level).
• Buzzer with driver.
• Crystal oscillator.
• LED indicators.

      Software’s used:

• PIC-C compiler for Embedded C programming.
• PIC kit 2 programmer for dumping code into Micro controller.
• Express SCH for Circuit design.
• Blynk mobile application.

            Block diagram:        

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