Determination of Particle Trajectories in a Gas Insulated Busduct (GIB)
N. Swarna Latha1, J. Amarnath
1N. Swarna Latha, EEE, Swami Vivekananda Institute of Technology, Secunderabad, Andhra Pradesh, India.
2Dr. J. Amarnath, JNTU, Hyderabad, Andhra Pradesh, India.
Manuscript received on December 08, 2014. | Revised Manuscript received on December 15, 2014. | Manuscript published on January 05, 2014. | PP: 89-92  | Volume-3 Issue-6, January 2014. | Retrieval Number: F1997013614/2014©BEIESP
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Abstract: SF6 is generally found to be very sensitive to field perturbations such as those caused by conductor surface imperfections and by conducting particle contaminants. A study of CIGRE group suggests that 20% of failure in GIS is due to the existence of various metallic contaminations in the form of loose particles. The presence of contamination can therefore be a problem with gas insulated substations operating at high fields. If the effects of these particles could be eliminated, then this would improve the reliability of compressed gas insulated substation. It would also offer the possibility of operating at higher fields to affect a potential reduction in the GIS size with subsequent savings in the cost of manufacture and installation. The purpose of this paper is to develop techniques, which will formulate the basic equations that will govern the movement of metallic particles like aluminum, copper in a coated with epoxy material as well as uncoated busduct.
Keywords: GIB, Busduct, Radial Movement, Axial Movement