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Fault Discrimination Algorithm For Busbar Differential Protection Relaying Using Partial Operating Current Characteristics, Monir Hossain
Fault Discrimination Algorithm For Busbar Differential Protection Relaying Using Partial Operating Current Characteristics, Monir Hossain
University of New Orleans Theses and Dissertations
Differential protection is the unit protection system which is applied to protect a particular unit of power systems. Unit is known as zone in protection terminology which is equivalent to simple electrical node. In recent time, low impedance current differential protection schemes based on percentage restrained characteristics are widely used in power systems to protect busbar systems. The main application issue of these schemes is mis-operation due to current transformer (CT) saturation during close-in external faults. Researchers have suggested various solution of this problem; however, individually they are not sufficient to puzzle out all mis-operational scenarios. This thesis presents a …