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has been cited by the following article:

• TITLE: Online Diagnosis and Monitoring for Power Distribution System

  AUTHORS: Atef Almashaqbeh, Aouda Arfoa

  KEYWORDS: Fault Detection and Classification; Protective Relaying; PCA; PSCAD

  JOURNAL NAME: Energy and Power Engineering, Vol.4 No.6, November 29, 2012

  ABSTRACT: Recently, power distribution system is getting larger and more complex. It is very difficult even for the experts to diagnosis and monitoring to made best action. This motivated many researchers to investigate power systems in an effort to improve reliability by focusing on fault detection and classification. There have been many studies on problems but the results are not good enough for applying to real power system. In this paper, a new protective relaying framework to diagnosis and monitoring faults in an electrical power distribution system with. This work will extract fault signatures by using ellipse fit using least squares criterion during fault condition. By utilizing principal component analysis methods, this system will identify, classify and localize any fault instantaneously.