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AssigneesTnb Research Sdn. Bhd, Universiti Teknologi Malaysia
InventorsSazali Abdul Karim, Abdullah Asuhaimi Mohd Zin
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According to the present invention, there is provided a method to minimize human intervention during decision making process while controlling the electrical power system by identifying the initiating element that cause a tripping of the transmission overhead lines and capable of identifying the potential future protection system failures that can initiate a cascading of tripping or total national blackout. A method of producing flashover analysis signal as a protection system analysis comprising processing a neutral current, three phase current profile, three phase voltage profile, and a plurality of digital signal of a transmission line using an artificial neural network to calculate pickup time, reset time, DEF confirmation time or total fault clearance time. A method of producing flashover analysis signal comprising as a flashover signature analysis to identify the cause of the flashover as a current transformer explosion, tree encroachment, crane, lightning strike or polluted insulator.
A method of producing protection system analysis comprising processing a neutral current, three phase current profile, three phase voltage profile, and a plurality of digital signal of a transmission line using an artificial neural network to calculate pickup time, reset time, DEF confirmation time or total fault clearance time.
A method of producing flashover analysis signal comprising processing a neutral current, three phase voltage profile, and a plurality of digital signal of a transmission line to identify a flashover fault caused by current transformer explosion, wherein the fault has an evolving fault which occurs on a healthy phase after the clearance of the first detected fault during the dead time of the first fault.
A method of producing flashover analysis signal comprising processing a neutral current, three phase voltage profile, and a plurality of digital signal of a transmission line to identify a flashover fault caused by tree encroachment, crane, polluted insulator or lightning strike, by obtaining λ, the gradient of neutral current's root mean square value, whereby;
Dependencies are inferred from the claim text.