Title :
Ground-fault protection based on active component of zero-sequence current in resistance neutral grounded distribution systems
Author :
Longhua, Mu ; Qinghai, Meng
Author_Institution :
Dept. of Electr. Eng., China Univ. of Min. & Technol., Xuzhou, China
Abstract :
A new principle of ground-fault protection for resistance neutral grounded systems is presented. Unlike previous work. the principle realizes selective ground-fault protection by getting the active current component that is resulted from the neutral resistor and only exists in the faulted line. Obtaining of the active current is presented in detail. On the basis of this principle, a selective ground-fault protection system and device have been developed.
Keywords :
earthing; power distribution faults; power distribution protection; resistors; active component; active current; faulted line; ground-fault protection; neutral resistor; resistance neutral grounded distribution systems; selective ground-fault protection; zero-sequence current; Circuit faults; Electric resistance; Grounding; Power system faults; Power system protection; Power system reliability; Power system transients; Resistors; Surges; Voltage control;
Conference_Titel :
TENCON '02. Proceedings. 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering
Print_ISBN :
0-7803-7490-8
DOI :
10.1109/TENCON.2002.1182708
