Title :
Grounding systems efficiency in areas with reduced accessibility
Author :
Parise, G. ; Parise, L. ; Martirano, L. ; Farber, A. ; Katz, B.
Author_Institution :
DIAEE Electr. Eng., Sapienza Univ. of Rome, Rome, Italy
Abstract :
Efficiency of grounding systems has to be verified periodically in the operational time. With urban development and buildings growth adjacent to power systems as HV/MV substations, it is very rare to have area around with sufficient accessibility for installing the potential and current electrodes. This paper discusses a safety criterion to verify the efficiency of a grounding system. By means of this criterion, conservative tests are suggested for both ground potential rise and touch voltage and step voltage that allow to verify the grounding systems efficiency in areas with reduced accessibility and also to monitor its evolution in the time.
Keywords :
earthing; electrodes; safety; substation protection; HV-MV substations; conservative tests; current electrodes; grounding systems; power systems; reduced accessibility; safety criterion; Current measurement; Electrodes; Grounding; Impedance; Substations; Voltage measurement; Current auxiliary electrodes; grounding systems; grounding tests; measurements of touch and step voltages; substation grounding systems;
Conference_Titel :
Industry Applications Society Annual Meeting, 2014 IEEE
Conference_Location :
Vancouver, BC
DOI :
10.1109/IAS.2014.6978477
