Insulation Coordination Studies for 400 kV GIS in a Hydroelectric Project in India

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B. N. Sarkar
K. S. Meera
Gaurav Garg
Ram Nath
A. K. Tripathy
S. C. Mishra
J. Thomas

Abstract

Insulation coordination studies comprising of Switching, Lightning and Very’ Fast Transient overvoltages has been carried out for the 400 kV Gas Insulated Switchgear (GIS) in the Tehri hydroelectric power plant in India. The studies were carried out to decide the various parameters of the switchyard equipment including arrester locations. Results of the switching overvoltages have been validated on the Transient Network Analyser (TNA). This paper discusses some of the results of all these studies.

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How to Cite
Sarkar, B. N., Meera, K. S., Garg, G., Nath, R., Tripathy, A. K., Mishra, S. C., & Thomas, J. (2004). Insulation Coordination Studies for 400 kV GIS in a Hydroelectric Project in India. Power Research - A Journal of CPRI, 19–24. Retrieved from https://cprijournal.in/index.php/pr/article/view/981

References

  1. Lewis, J., Pryor, B.M., Jones, C.J.. Irw'in, T, “Disconnector Operations in Gas Insulated Substations Overvoltage Studies and Tests Associated with a 420 kV Installation”, CIGRE, V. II, 1988, paper 33.09, pages 1-8.
  2. Joint working group 33/23.12, “Insulation coordination of GIS: Return of experience on site tests and diagnostic techniques”, Electra, February 1998 pages 67-97.

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