Statistical approach to the insulation coordination of medium and high voltage cable lines

Author

Marzinotto, M. ; Mazzetti, C. ; Schiaffino, P.

Author_Institution

Univ. La Sapienza of Roma, Rome

fYear

2005

fDate

27-30 June 2005

Firstpage

1

Lastpage

8

Abstract

Risk of failure of MV and HV (up to 150 kV) cable lines stressed by lightning and switching overvoltages has been assessed by a statistical approach. Probability density functions of overvoltages amplitude in MV and HV system are estimated and correlated with the failure probability distributions of cable lines insulated with different EPR compounds. The results of the evaluation are plotted and discussed showing the influence of cable length and type of insulation compound on the risk values.

Keywords

fault diagnosis; overvoltage; power cable insulation; statistical analysis; cable insulation; failure probability distributions; failure risk; high voltage cable lines; insulation coordination; probability density functions; statistical approach; switching overvoltages; Cable insulation; Lightning; Medium voltage; Paramagnetic resonance; Performance evaluation; Power cable insulation; Power cables; Probability density function; Probability distribution; Surges; Cable lines; insulation coordination; overvoltage statistical distribution; risk assessment;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Tech, 2005 IEEE Russia

Conference_Location

St. Petersburg

Print_ISBN

978-5-93208-034-4

Electronic_ISBN

978-5-93208-034-4

Type

conf

DOI

10.1109/PTC.2005.4524344

Filename

4524344