1Research scholar, Rayalaseema University Kurnool, Andhra Pradesh, India
2Retired Senior Professor and Head, Department of EEE, G. Pullareddy Engineering(autonomous), Kurnool, Andhra Pradesh, India
Online published on 24 October, 2017.
A method based on particle motion is proposed to determine the particle trajectory in Gas Insulated Substation (GIS) or Gas Insulated Busduct (GIB). In order to determine the movement of a particle in a GIB, an inner electrode diameter of 55mm and outer enclosure diameter of 152mm was considered. Aluminum and copper wires of 0.25mm/8mm were considered to be present on the enclosure surface. The motion of the wire (particle) was simulated using the charge acquired by the particles, the macroscopic field that the particle site, the drag coefficient, Reynold's number and coefficient of restitution. In order to determine the random behaviour of moving particles, the calculation of movement in axial and radial directions was done at every time step using rectangular random numbers. Typically for Aluminium wire for a bus duct voltage of 100 kV RMS, the movement of the particle (0.25mm/10mm) for 2 Sec was computed to be 27.6306 mm in radial and 613.671 mm in axial directions.
Monte-Carlo, Particle Contamination, particle movement, Horizontal movement, Vertical movement
