Title :
Optimal Frequency Value to Detect Low Current Faults Superposing Voltage Tones
Author :
Zamora, J.J. ; Zamora, I. ; Mazón, A.J. ; Sagastabeitia, K.J.
Author_Institution :
Dept. of Electron. & Telecommun. Eng. & Dept. of Electr. Eng., Univ. of the Basque Country, Bilbao
Abstract :
Single phase to ground low current faults (LCF) are difficult to be detected with common fault detection techniques. Therefore, several specific methodologies have been developed to identify LCF in an easier way. Among these methodologies, a method based on superposing voltage tones has been proposed. This method requires defining the frequency of the tones that have to be superimposed.
Keywords :
fault currents; fault diagnosis; power distribution faults; fault detection techniques; low current fault detection; low current faults; optimal frequency value; voltage tones; Distribution systems; fault diagnosis; low current fault (LCF); random drift values; signal superposition; synchronous coupling; tones generation;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2008.919256
