Title :
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
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;
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
DOI :
10.1109/PTC.2005.4524344
