chapter  10
36 Pages

Load Flow over Power Transmission Lines

WithJ.C. Das

Load flow is a solution of the steady-state operating conditions of a power system. In an industrial distribution system, the load demand for a specific process can be predicted fairly accurately and a few load flow calculations will adequately describe the system. Applied to large systems for optimization, security, and stability, the algorithms become complex and involved. For power lines, series and shunt capacitors for heavy load conditions and shunt reactors under light load conditions are used to improve power transfer and line regulation. The chapter explains the power flow over power transmission lines, which is somewhat distinct and a problem by itself. The corona discharges form when the electrical field intensity exceeds the breakdown strength of air and local ionization occurs. The corona noise generated by negative charged electrode tends to be of low level compared to the noise generated by a positive charged electrode.