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ferranti effect. efficiency regulation long transmission line. medium short generalized network constants °ì±ð±ô±¹¾±²Ô’s±ô²¹·É voltage drop and power loss calculation ring distributor concentrated & uniformly distributed loads primary and secondary distribution systems comparison of copper efficiency three phase and 4-wire systems proximity effect. a.c single phase skin effect d.c 2-wire and 3- wire three phase lines with bundle conductors ransmission and distribution systems calculation of inductance and capacitance of singl line parameters types of conductors power generation electricity tariffs load curves load duration curves power plants gas nuclear hydro thermal electric power generation