Quick evaluation of voltage surge in electrical power systems

Author

Yu, Luke

Author_Institution

Ralph M. Parsons Co., Pasadena, CA, USA

fYear

1994

fDate

1-5 May 1994

Firstpage

197

Lastpage

201

Abstract

The lattice diagram has been widely recognized and adopted to analyze the voltage surges produced at a particular location in an electrical system. These transient surges are caused by traveling waves induced by lightning strikes or switching operations. The lattice diagram can be used effectively, but the required computations are tedious. A simplified approach for computing induced voltage surges based on mathematical derivation is presented. This method permits a quick evaluation of both an initial and crest surge magnitude and wave shape based on a given incoming surge and the surge impedances of the electrical elements involved. Sample calculations from the lattice diagram and the proposed quick evaluation are compared

Keywords

overvoltage; power system transients; surges; crest surge magnitude; electrical power systems; initial surge magnitude; lattice diagram; lightning strike; surge impedances; switching operations; transient surges; traveling waves; voltage surge; wave shape; Impedance; Lattices; Lightning; Power system analysis computing; Power system transients; Power systems; Reflection; Shape; Surges; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial and Commercial Power Systems Technical Conference, 1994. Conference Record, Papers Presented at the 1994 Annual Meeting, 1994 IEEE

Conference_Location

Irvine, CA

Print_ISBN

0-7803-1877-3

Type

conf

DOI

10.1109/ICPS.1994.303573

Filename

303573