TY - BOOK AU - Emad Eldin Farouk Mahmoud Sharouda AU - Husien Abdulkhalik Attia , AU - Mohamed Mamdouh Abdulaziz , TI - Improvement of power system harmonics resulted from using the DC-converter loads and electric ARC furnaces in distribution networks / PY - 2012/// CY - Cairo : PB - Emad Eldin Farouk Mahmoud Sharouda , KW - Power system harmonics KW - System impedance with frequency variation KW - Total harmonic distortion of current and voltage N1 - Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Electrical Power and Machines; Issued also as CD N2 - Power system harmonics are considered the major effects on reducing power quality level. So, we must improve these harmonics to acceptable level according to IEEE Std. 519-1992. Usage of some of non-linear loads can produce harmonics in power system networks. In this thesis we have studied two types of non-linear loads which can produce harmonics ER -