Title :
A Method to Enhance Ground-Fault Computation
Author :
Huang, Shyh-Jier ; Wan, Hsing-Ho
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
fDate :
5/1/2010 12:00:00 AM
Abstract :
This letter presents a simple criterion for reviewing balanced three-phase fault and unbalanced ground-fault current using the ratio of zero sequence impedance to positive sequence impedance as seen from the fault location, which can be employed to enhance the power system design and protection. The method has been verified by real power systems in Taiwan with satisfactory results.
Keywords :
earthing; fault currents; power system protection; Taiwan; balanced three-phase fault; fault location; ground-fault computation enhancement; impedance; power system protection; unbalanced ground-fault current; Balanced three-phase fault; sequence impedance; unbalanced ground-fault;
Journal_Title :
Power Systems, IEEE Transactions on
DOI :
10.1109/TPWRS.2009.2036331
