Abstract
Particles like copper and aluminium has four phases.They are produced in manufacturing, transportation, installation and the last one is operation in Gas Insulated Substation (GIS). In the cylinder, the smaller particles will be cleaned or removed using vacuum cleaners. Cylinder will always gets filled up with SF6 gas. But after cleaning, some particles will present in that and these particles will affects the working of the circuit breaker. The conductor and the enclosure are made up of copper and aluminium particles. This enclosure will give the place to the particle to lie on it and inside the duct to move freely. Because of this, the serious problems of arcing and other failures will arise inside the duct. Out of these, one of the major problems is particle contamination. This particle movement will be observed by changing Radius, Length, coating thickness and SF6 gas pressure. By coating the inner surface, this problem can be overcomes. By doing this, the particles take less charge and there will be change in the movement of the particle. The paper deals with the observation of particle movement by using Charge Simulation and Finite-difference Methods. Results are compared and analyzed.KeywordsCharge simulation method (C.S.M)Finite difference method (F.D.M)Gas-insulated substations (GIS)Sulphur hexafluoride (SF6)Gas-insulated busduct (GIB)Air-insulated substations (AIS)
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