Title :
Effects of double ground faults in Wind Farms collector cables
Author :
La Cascia, Diego ; Zizzo, Gaetano
Author_Institution :
DICGIM Dept. of Chem. Eng., Manage., Comput. Sci., Mech. Eng., Univ. of Palermo, Palermo, Italy
Abstract :
Medium Voltage collector cables of Wind Farms have metal shields connected to the grounding systems of the towers and of the connection station. Thanks to this bonding, when a ground fault occurs, the fault current splits itself among all the grounding systems of the wind farm, this causing a reduction of the ground potential rise at the fault location. Nevertheless, in presence of double ground faults, very high ground potential rises occur at the two fault locations and safety against electric shock is not always assured. In order to study this issue, the paper presents a model for simulating in a simple way the effects of double ground faults occurring in Medium Voltage collectors of extended wind plants connected to the High Voltage network.
Keywords :
earthing; electrical safety; power generation faults; wind power plants; double ground fault; fault current; fault location; high voltage network; medium voltage collector cables; medium voltage collectors; wind farm grounding systems; wind farms collector cables; Circuit faults; Conductors; Fault currents; Ground penetrating radar; Grounding; Integrated circuit modeling; Poles and towers; Double ground faults; MV cables; grounding systems; wind plants;
Conference_Titel :
Environment and Electrical Engineering (EEEIC), 2015 IEEE 15th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4799-7992-9
DOI :
10.1109/EEEIC.2015.7165351
