Lightning Transient Study of a Hybrid Overhead and Underground High-Voltage System

Author

Chang, G.W. ; Liu, Y.J. ; Huang, H.M.

Author_Institution

Dept. of Electr. Eng., Nat. Chung Cheng Univ., Chia-Yi

fYear

2007

fDate

24-28 June 2007

Firstpage

1

Lastpage

5

Abstract

Transient overvoltages encountered by the power system equipment are mainly divided into three types: lightning surges, switch surges, and power frequency overvoltages. This paper presents a transient overvoltage study in a 345 kV hybrid overhead and underground transmission system that serves a high-tech industrial park. Based on the actual system information, the distributed parameter model is adopted to create a 345 kV transmission network in EMTP/ATP for simulations. The high- energy phenomenon and lighting surges are included in the transient study. Then, major criteria suggested by IEEE and IEC standards are used to assess the level of insulation coordination of the hybrid overhead/underground high-voltage system.

Keywords

EMTP; IEC standards; IEEE standards; power overhead lines; power system transients; surges; transmission networks; EMTP/ATP; IEC standards; IEEE standards; distributed parameter; hybrid overhead; lightning surges; lightning transient study; power frequency overvoltages; power system equipment; switch surges; transient overvoltages; transmission network; underground high-voltage system; voltage 245 kV; EMTP; Frequency conversion; Hybrid power systems; IEC standards; Industrial power systems; Lightning; Power system modeling; Power system transients; Surges; Switches; Transients; distributed parameter; insulation coordination; lightning surges;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society General Meeting, 2007. IEEE

Conference_Location

Tampa, FL

ISSN

1932-5517

Print_ISBN

1-4244-1296-X

Electronic_ISBN

1932-5517

Type

conf

DOI

10.1109/PES.2007.385914

Filename

4275680