Title :
New Δ-protection schemes for generator stator ground fault
Author :
Nengling, Tai ; Xiao, Wu Hong ; Zhijian, Hou ; Xianggen, Yin
Author_Institution :
Shanghai Jiao Tong Univ., China
Abstract :
Based on the analysis of the characteristics of some stator ground protection schemes, the protection schemes suitable for the generators in Three-Gorges Power Station are presented in this paper. To match the protection requirements of those generators, new protection schemes are suggested. Simulation and experimental results show that the protection schemes suggested in this paper can obtain higher sensitivity and reliability for the generators in Three-Gorges Power Station.
Keywords :
earthing; electrical faults; hydroelectric generators; machine protection; reliability; sensitivity; stators; Δ-protection schemes; Three-Gorges Power Station; generator stator ground fault; hydroelectric generators; reliability; sensitivity; sero sequence voltages; subharmonic voltage injection analysis; Fault detection; Fault location; Grounding; Inductors; Power generation; Protection; Protective relaying; Stator windings; Voltage control; Voltage transformers;
Conference_Titel :
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Print_ISBN :
0-7803-7459-2
DOI :
10.1109/ICPST.2002.1047255
