• Bammidi Naga sai Prakash
• Prof. M.Gopichand Naik

This paper reports electric potential distribution minimization in a three-phase 250 kV GIS spacer with aim to reduce the withstand voltage in the spacer. The withstand voltage around the conductor on the spacer directly depends upon how the electrical potential of conductor is distributed over the spacer volume. The three modifications of the GIS spacer structure and the material are performed to reduce electric potential distribution in the GIS spacer. First, the distance between phase conductors (d) is changed with varied ratio of 0.8, 1.0, and 1.2 times of original distance (d). The second parameter changed for modification in the spacer form is contact angle. The contact angle (θ) refers to the angle between the spacer-HV electrode side and the spacer-grounded electrode side. This angle is varied from 65°, 45°, and 35°. The last parameter changed for modification in the spacer form is high permittivity material usage which reduces the electrical potential stress in the spacer.

Potential distribution, Contact angle, Conductor configuration, Gas Insulated Substation, Sf6 gas

"ENHANCING THE WITHSTAND VOLTAGE CAPABILITY OF CONICAL SPACERS IN SF6 GAS INSULATED SUBSTATIONS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 10, page no.d970-d975, October-2023, Available :http://www.jetir.org/papers/JETIR2310313.pdf

"ENHANCING THE WITHSTAND VOLTAGE CAPABILITY OF CONICAL SPACERS IN SF6 GAS INSULATED SUBSTATIONS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 10, page no. ppd970-d975, October-2023, Available at : http://www.jetir.org/papers/JETIR2310313.pdf