Earth Potential Rise (EPR) Computation for a Fault on Transmission Mains Pole
The prologue of new High Voltage (HV) transmission
mains into the community necessitates earthing design to ensure
safety compliance of the system. Conductive structures such as steel
or concrete poles are widely used in HV transmission mains. The
earth potential rise (EPR) generated by a fault on these structures
could result to an unsafe condition. This paper discusses information
on the input impedance of the over head earth wire (OHEW) system
for finite and infinite transmission mains. The definition of finite and
infinite system is discussed, maximum EPR due to pole fault. The
simplified equations for EPR assessments are introduced and
discussed for the finite and infinite conditions. A case study is also
shown.
[1] Andrenyi J. "Analysis of Transmission Tower Potentials During Ground
Faults" IEEE Transaction on Power Apparatus and Systems, Vol. Pas-
86, No. 10, 1967
[2] Nassereddine M, Hellany A, Rizk J, "How to design an effective
earthing system to ensure the safety of the people" International
Conference on Advances in Computational Tools for Engineering
Applications, pp 416-421, 2009
[3] Nassereddine M, Hellany A, Nagrial M, "Analysis of the impact of the
OHEW under full load and fault current" International Jurnal of Energy
and Environment (IJEE), Volume 1, Issue 4, pp. 727-736. 2010
[4] Nassereddine M, Hellany A, Nagrial M. Rizk J. "Soil Resistivity
Structure and its implication on the Earth Grid of HV substation" World
Academy of Science, engineering and Technology , Vol 60, pp 1322-
1326, 2011
[5] Nassereddine M, Hellany A, "AC Interference Study on Pipeline: the
Impact of the OHEW under Full Load and Fault Current", Proceeding in
the 2009 International Conference on Computer and Electrical
Engineering, pp 497-501, 2009
[6] Nassereddine M, Hellany A, Nagrial M. Rizk J. " Safety Compliance of
Substation Earthing Design" World Academy of Science, engineering
and Technology , Vol 60, pp 525-529, 2011
[7] IEEE guide to safety in AC substation grounding, 2000- (IEEE, New
York, 2000).
[8] Dawalibi F. "Effects of Sustained Ground Fault Current on Concrete
poles", 1982 IEEE Transactions on Power Apparatus and Systems, Vol.
PAS-101
[9] Verma, R. "Ground fault current distribution in substation, tower and
ground wire" IEEE transactions on power apparatus and systems, Vol.
PAS-98, 1979
[1] Andrenyi J. "Analysis of Transmission Tower Potentials During Ground
Faults" IEEE Transaction on Power Apparatus and Systems, Vol. Pas-
86, No. 10, 1967
[2] Nassereddine M, Hellany A, Rizk J, "How to design an effective
earthing system to ensure the safety of the people" International
Conference on Advances in Computational Tools for Engineering
Applications, pp 416-421, 2009
[3] Nassereddine M, Hellany A, Nagrial M, "Analysis of the impact of the
OHEW under full load and fault current" International Jurnal of Energy
and Environment (IJEE), Volume 1, Issue 4, pp. 727-736. 2010
[4] Nassereddine M, Hellany A, Nagrial M. Rizk J. "Soil Resistivity
Structure and its implication on the Earth Grid of HV substation" World
Academy of Science, engineering and Technology , Vol 60, pp 1322-
1326, 2011
[5] Nassereddine M, Hellany A, "AC Interference Study on Pipeline: the
Impact of the OHEW under Full Load and Fault Current", Proceeding in
the 2009 International Conference on Computer and Electrical
Engineering, pp 497-501, 2009
[6] Nassereddine M, Hellany A, Nagrial M. Rizk J. " Safety Compliance of
Substation Earthing Design" World Academy of Science, engineering
and Technology , Vol 60, pp 525-529, 2011
[7] IEEE guide to safety in AC substation grounding, 2000- (IEEE, New
York, 2000).
[8] Dawalibi F. "Effects of Sustained Ground Fault Current on Concrete
poles", 1982 IEEE Transactions on Power Apparatus and Systems, Vol.
PAS-101
[9] Verma, R. "Ground fault current distribution in substation, tower and
ground wire" IEEE transactions on power apparatus and systems, Vol.
PAS-98, 1979
@article{"International Journal of Electrical, Electronic and Communication Sciences:49414", author = "M. Nassereddine and J. Rizk and A. Hellany and M. Nagrial", title = "Earth Potential Rise (EPR) Computation for a Fault on Transmission Mains Pole", abstract = "The prologue of new High Voltage (HV) transmission
mains into the community necessitates earthing design to ensure
safety compliance of the system. Conductive structures such as steel
or concrete poles are widely used in HV transmission mains. The
earth potential rise (EPR) generated by a fault on these structures
could result to an unsafe condition. This paper discusses information
on the input impedance of the over head earth wire (OHEW) system
for finite and infinite transmission mains. The definition of finite and
infinite system is discussed, maximum EPR due to pole fault. The
simplified equations for EPR assessments are introduced and
discussed for the finite and infinite conditions. A case study is also
shown.", keywords = "Coupling Factor, Earth Grid, EPR, Fault Current
Distribution, High Voltage, Line Impedance, OHEW, Split Factor,
Transmission Mains.", volume = "6", number = "12", pages = "1379-6", }