Title :
Filtering effects of substation secondary circuits on power system traveling wave transients
Author :
Spoor, D.J. ; Zhu, J. ; Nichols, P.
Author_Institution :
Transgrid, Sydney, NSW, Australia
Abstract :
The accuracy of traveling wave fault location systems are highly dependent on the frequency response of the substation coupling transducers. This paper presents an electrical equivalent model of a current transformer and the associated secondary cabling, where the electrical parameters have been measured from 330 kV devices or calculated from the geometry of the equipment. Frequency dependant models have been developed from this data using the alternative transients program to simulate the filtering effects of the secondary cabling impact on high frequency transient. The simulation results are then compared to signals observed by traveling wave recorders connected to the substation secondary cabling.
Keywords :
current transformers; equivalent circuits; fault location; frequency response; power system transients; substations; transducers; 330 kV; alternative transients program; current transformer; electrical equivalent model; fault location systems; filtering effects; frequency response; power system traveling wave transients; secondary cabling; substation coupling transducers; substation secondary circuits; traveling wave recorders; Circuits; Fault location; Filtering; Frequency; Power cables; Power system faults; Power system measurements; Power system modeling; Power system transients; Substations;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202992
