Title :
A study on effects of grounding systems on transient voltages in 154kV substation
Author :
Jung, Chae-kyun ; Choi, Jong-kee ; Kang, Ji-won
Author_Institution :
Korea Electr. Power Res. Inst., Daejeon, South Korea
Abstract :
This paper describes the transient effects by grounding system methods on substation. Generally, the substation grounding system is modeled by just resistance. However, in this paper, new method which is considered the impedance of grounding lead cable and the grounding wire connection methods has been proposed. 3 cases including conventional method are variously analyzed in 4 kinds of transient frequency ranges. The results will contribute to improving grounding system modeling of substation in the range of high frequency transients.
Keywords :
earthing; substations; grounding lead cable; grounding system methods; grounding wire connection methods; substation; transient voltages; voltage 154 kV; Biological system modeling; Conductors; Frequency; Grounding; Immune system; Impedance; Power system modeling; Substations; Voltage; Wire; EMTP/ATP modeling; Grounding system; Mesh; Substation; Transients;
Conference_Titel :
Transmission & Distribution Conference & Exposition: Asia and Pacific, 2009
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-5230-9
Electronic_ISBN :
978-1-4244-5230-9
DOI :
10.1109/TD-ASIA.2009.5356906
