International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
Digital Testing Kit for Three Phase Distribution Transformer Renuka Kachare 1, Gitanjali Atugade2, Shreyada Jadhav 3, Shweta Mahajan4, Dhanyakumar Patil 5 Department of Electrical Engineering, ADCET, Ashta, Maharashtra, India of Electrical Engineering, ADCET, Ashta, Maharashtra, India 3 Department of Electrical Engineering, ADCET, Ashta, Maharashtra, India 4. Department of Electrical Engineering, ADCET, Ashta, Maharashtra, India 5 Asst. Prof, Electrical Engineering Department, ADCET, Ashta, Sangli (MH), India ---------------------------------------------------------------------***--------------------------------------------------------------------1
2 Department
Abstract-The aim of the project is to design a Digital Testing Kit for Three Phase Distribution Transformer. This kit performs necessary tests on the repaired transformer using microcontroller based programming. After this testing transformer is ready to use and perform healthy operations. When transformer is repaired there are many chances of loose connections and insulation failure. To avoid the faulty condition or improper operation of transformer testing is important. For this purpose testing kit is designed in which various tests are performed. This testing kit consist of components such as current transformer to step down current, voltage transformer to step down voltage, zero crossing detector to measure phase difference between the voltage and current, with the help of microcontroller the final output is given to LCD to display the required outputs. In this kit PIC microcontroller is used to process on the output obtained from ZCD with the help of the microcontroller programming. For microcontroller programming language used is embedded C. Hence the output voltage, current and power factor is displayed on the LCD display. On the basis of results obtained from testing it can be concluded that the transformer is ready to use or not. Efficiency is one of the most important factor in the result analysis. If the efficiency of the transformer after testing is below the desired value then the transformer should be repaired again.
Line voltages, Line currents, Phase voltages, Phase currents, Power factor, Losses
2. OBJECTIVE Transformers play an important role in the power system. They help to convert power to appropriate levels which other components can safely use. They are often in operation for a long time and only stop working during power interruptions and maintenance. It is important to regularly assess their functions to ensure continuous service, so the testing of the transformer is important factor. On the basis of efficiency it can be determined that transformer can be reused or not. The main objective of this Digital Testing Kit is to minimize the time consumption and increase the efficiency. It works for the measurement of all parameters required for testing of transformer such as phase voltage, phase current, line voltage, line current, power factor, active power, reactive power and apparent power. For testing of the transformer two-wattmeter method is also used but preference is given to the digital testing kit because of its desirable features.
3. HARDWARE IMPLEMENTATION 3.1. Block Diagram of Proposed Work
Key Words: CT, PT, ZCD, PIC microcontroller
1. INTRODUCTION Digital Testing Kit for Three Phase Distribution Transformer performs necessary tests on the repaired transformer using microcontroller based programming. After this testing transformer is ready to use and perform healthy operations. When transformer is repaired there are many chances of loose connections and insulation failure. To avoid the faulty condition or improper operation of transformer testing is important. In this research paper focus is given on the tests of transformer to find out its efficiency. The parameters to be displayed to find out the efficiency of the transformer are: Š 2017, IRJET
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Impact Factor value: 5.181
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Fig3.1 Block diagram of hardware ISO 9001:2008 Certified Journal
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