Title :
Grounding effects of HV and MV underground cables associated with urban distribution substations
Author :
Nahman, Jovan M. ; Djordjevic, Vladimir B. ; Salamon, Dragutin D.
Author_Institution :
Belgrade Univ., Serbia
fDate :
1/1/2002 12:00:00 AM
Abstract :
This paper derives a model for the evaluation of the performances of composite grounding systems of urban main distribution substations and associated power cable networks. The effects of the cables upon the dangerous voltages, transferred potentials and ground fault current distribution are encompassed including the conductive and magnetic coupling among grounding system elements, as well as the nonlinearity of cables sheaths impedances. An application example is presented, as are some experimental data
Keywords :
cable sheathing; current distribution; earthing; fault currents; power cables; power distribution faults; power distribution protection; substations; underground cables; underground distribution systems; HV underground cables; MV underground cables; cables sheaths impedances nonlinearity; composite grounding systems; conductive coupling; dangerous voltages; distribution systems; ground fault current distribution; grounding effects; magnetic coupling; transferred potentials; uncoated metal sheathed cables; urban main distribution substations; Cables; Electrodes; Fault currents; Grounding; Impedance; Magnetic analysis; Performance evaluation; Soil; Substations; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
