Modal Behavior Analysis of 220kV Transmission Line Tower using SAP 2000 in Wind Zones I and V
Sudheer Choudari1, P. S. V. Ramana Rao2, K. Madhava Rao3 

1Mr. Sudheer Choudari, Assistant Professor, Department of Civil Engineering, Centurion University of Technology & Management, Bhubaneswar, (Oddisha), India.
2Dr.P.S. V .Ramanarao, Professor, Department of Mechanical Engineering, Centurion University of Technology & Management. Bhubaneswar, (Oddisha), India.
3Mr. K.Madhava Rao, Associate Professor, Department of Electrical Engineering, Centurion University of Technology & Management, Bhubaneswar, (Oddisha), India.

Manuscript received on 06 March 2019 | Revised Manuscript received on 12 March 2019 | Manuscript published on 30 July 2019 | PP: 3266-3271 | Volume-8 Issue-2, July 2019 | Retrieval Number: B2861078219/19©BEIESP | DOI: 10.35940/ijrte.B2861.078219
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Abstract: For every developing country, Electrical system plays a crucial role not only in developing the Nation’s economy but also in survival of human beings. The present study deals with a typical 3Dimensional 220 kV double circuit transmission-line tower is modelled using Sap 2000. The loading conditions considered are normal, earthwire broken and conductor broken conditions. The wind zones I and V are considered since wind zone I has the lowest wind speed 33m/s and for wind zone V having wind speed 50 m /s (Visakhapatnam). All the other parameters like steel sections, height of tower and base width of tower is kept constant for studying the results after the analysis is done. After analysis of tower corresponding wind zones, the results are compared for maximum axial positive and negative deflections, reactions at the supports, different mode shapes and time period, modal mass participation factors, modal participation factors for modal stiffness and frequencies, Eigen value.
Index Terms: Modal Stiffness, Frequencies, Modal Participations Factors, Eigen value and Deflections.

Scope of the Article: Wireless Power Transmission