2Department of Electrical Communication, Faculty of Engineering, Canadian International College (CIC), 6 October City, Giza, Egypt, E-mail: nkahgaat@hotmail.com
3Department of Electrical Power Engineering, Faculty of Engineering, Al-Azhar University, Cairo, Egypt, E-mail: nkahgaat@hotmail.com
4Department of Electrical Power Engineering, Faculty of Engineering, Cairo University, Giza, Egypt, E-mail: nkahgaat@hotmail.com