Saber Mohamed Saleh Salem  <br/><br/>
Nonlinear high impedance fault detection and location in extra high voltage transmission lines /  
 اكتشاف وتحديد اماكن الاعطال فى خطوط الضغط الفائق الناجمة عن المعاوقات الكبيرة الغير خطية 
Saber Mohamed Saleh Salem ; Supervised Essam Eldin Abouelzahab , Elsayed Mohamed Tag Eldin , Doaa Khalil Ibrahim 
 - Cairo :   Saber Mohamed Saleh Salem ,   2009 
 - 160P. :   charts ;   30cm 
<br/><br/>Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Electrical Power and Machines 
<br/><br/> In this thesis two extra high voltage transmission lines HIF detection schemes have been proposed based on the high frequency disturbance generated on the voltage signales at the relay location . The high frequency disturbances are extracted by high pass filter and wavelet transform respectively to recognize the change corresponding to the HIF effect on the voltage signal 
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<br/><br/><label>Subjects--Index Terms: </label>Fault location High impedance fault Wavelet Transform