Simulative Experiment of Major and Minor InterTurn Short Circuit Faults in Power Transformer Windings
O.Sobhana1, V.Ganesh2, M.Surya kalavathi3

1O.Sobhana , EEE, Asst. Professor, VNRVJIET, Hyderabad, Telangana, India.
2Dr. V. Ganesh, EEE, Professor, JNTUACEP, Anantapur, Telangana, India.
3Dr. M. Surya kalavathi, EEE, Professor, JNTUH, Hyderabad, Telangana, India.

Manuscript received on 30 June 2019 | Revised Manuscript received on 05 July 2019 | Manuscript published on 30 July 2019 | PP: 2685-2688 | Volume-8 Issue-9, July 2019 | Retrieval Number: I8990078919/19©BEIESP | DOI: 10.35940/ijitee.I8990.078919
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Abstract: Frequency Response Analysis is offline technique to detect the winding deformations. This paper intends to analyze the power transformer under major and minor inter-turn short circuit faults in the winding of transformer using simulative study. An EMTP-RV based lumped circuit model was given based on the number of sections and turns of winding to simulate the faults at different levels by short circuiting windings of adjacent turns with modified circuit parameter for each fault level and simulated results have represented as neutral current in timedomain and corresponding frequency responses with and without fault levels were plotted for major and minor inter-turn faults.
Keywords: EMTP-RV Simulation, Lightning Impulse, Iumped Circuit, FRA.

Scope of the Article: Digital Clone or Simulation