TY - GEN
T1 - Characterisation of earthing systems under high frequency and transient conditions
AU - Griffiths, H.
AU - Haddad, A.
AU - Harid, N.
PY - 2004
Y1 - 2004
N2 - Earthing systems in distribution and transmission networks are designed to provide adequate safety levels under normal operating and fault conditions. It is well known, however, that designs made for power frequency operation have a different response under high frequency and transient conditions. Such conditions arise during fault and switching transients as well as when the system is subjected to lightning strikes. This paper reviews current recommendations and practice for high frequency and transient earthing system design. It also describes simulation studies of various earthing scenarios under variable frequency and transient conditions. These include surge arrester earthing electrodes, tower bases and substation grids. The effect of electrode arrangements, mesh dimensions and above-ground conductors were quantified.
AB - Earthing systems in distribution and transmission networks are designed to provide adequate safety levels under normal operating and fault conditions. It is well known, however, that designs made for power frequency operation have a different response under high frequency and transient conditions. Such conditions arise during fault and switching transients as well as when the system is subjected to lightning strikes. This paper reviews current recommendations and practice for high frequency and transient earthing system design. It also describes simulation studies of various earthing scenarios under variable frequency and transient conditions. These include surge arrester earthing electrodes, tower bases and substation grids. The effect of electrode arrangements, mesh dimensions and above-ground conductors were quantified.
UR - http://www.scopus.com/inward/record.url?scp=32144444748&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:32144444748
SN - 1860433650
SN - 9781860433658
T3 - 39th International Universities Power Engineering Conference, UPEC 2004 - Conference Proceedings
SP - 188
EP - 192
BT - 39th International Universities Power Engineering Conference, UPEC 2004 - Conference Proceedings
T2 - 39th International Universities Power Engineering Conference, UPEC 2004
Y2 - 6 September 2004 through 7 September 2004
ER -
