Influence of Various Temperatures on the Drying Time of 220/66 KV Transformer Insulations in Vapour Phase Drying Process
Mohd. Tareq Siddiqui1, Jayant T. Pattiwar2, Avinash P. Paranjape3, Ashok J Keche4

1Mohd. Tareq Siddiqui*, Department of Mechanical Engineering, PES College of Engineering, Aurangabad, India.
2Dr. Jayant T. Pattiwar, Department of Engineering & Technology, Dr. BAM University, Aurangabad, India.
3Dr. Avinash P. Paranjape, Department of Electrical Engineering, Govt. Engineeirng College, Aurangabad, India.
4Dr. Ashok J. Keche, Department of Mechanical Engineering, MIT College, Aurangabad, India.
Manuscript received on February 10, 2020. | Revised Manuscript received on February 23, 2020. | Manuscript published on March 10, 2020. | PP: 645-651 | Volume-9 Issue-5, March 2020. | Retrieval Number: E2603039520/2020©BEIESP | DOI: 10.35940/ijitee.E2603.039520
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Abstract: Cellulose based insulation in the form of different papers and pressboard play a vital role in transformer manufacturing as very high level of voltages are encountered during transformer operation. Cellulose being hygroscopic in nature contains 8-10% moisture by weight. The life of a transformer is critically dependant on the state of cellulose insulation so much so that, paper with 1.5% moisture content ages 10 times faster than with only 0.3% moisture. For obvious reasons, it is very important that the moisture is removed from transformer insulation. As of today, the latest technology available for this moisture extraction is the vapour phase drying process. This paper evaluates the influence of temperatures at various locations on the drying time of two 220kv transformer insulations in vapour phase drying process. 
Keywords: Temperature, Drying time, Moisture, Transformer
Scope of the Article: Smart Computing and Information Processing