DocumentCode :
2964197
Title :
An investigation into sequential tripping occurring in the presence of remote infeed
Author :
Mahamedi, Behnam
Author_Institution :
Dept. of Supervision on Transm. Grid, Iran Grid Manage. Co., Tehran, Iran
fYear :
2011
fDate :
15-17 Nov. 2011
Firstpage :
1
Lastpage :
5
Abstract :
Sequential tripping refers to a special fault clearing status that occurs when the distance relays located at each end of a line trip in different times. To be precise, one of the relays may trip after only the circuit breaker located at the other end of the line has opened. This paper conducts an investigation into this phenomenon by using the symmetrical components theory. It will be demonstrated how source impedance, fault resistance and power angle affect the impedance location in RX plane with respect to protective zones and cause sequential tripping. Using MATLAB®, we will simulate different fault and system conditions resulting in sequential tripping. The simulation results can be used to provide the idea when this phenomenon can occur.
Keywords :
circuit breakers; fault location; power transmission faults; power transmission lines; power transmission protection; relay protection; RX plane; circuit breaker; distance relays; fault resistance; impedance location; power angle affect; remote infeed; sequential tripping; special fault clearing status; Circuit faults; Electrical resistance measurement; Impedance; Impedance measurement; Power systems; Relays; Resistance; distance relay; fault resistance; remote infeed; sequential tripping; source impedance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electric Power and Energy Conversion Systems (EPECS), 2011 2nd International Conference on
Conference_Location :
Sharjah
Print_ISBN :
978-1-4577-0804-6
Type :
conf
DOI :
10.1109/EPECS.2011.6126841
Filename :
6126841
Link To Document :
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