Title :
Power quality impact on thermal behaviour and life expectancy of insulated cables
Author :
Pacheco, Claudio R. ; De Oliveira, José C. ; Vilaca, Anderson L A
Author_Institution :
Dept. of Electr. Eng., Fed. Univ. of Uberlandia, Uberlandia, MG, Brazil
Abstract :
This paper deals with the thermal behaviour and life expectancy analysis of power insulated cables under nonideal supply conditions. The proposed methodology utilises classical IEC-287 electrical and thermal models and extends the approach to cope with mutual thermal interaction between phases as well as power quality degradation. This allows for independent three-phase representation and both thermal and electric equations are solved in a simultaneous way. This comprehensive manner of representing the phenomenon is then implemented into a time domain computer program. Computational studies are then performed to evaluate the cable temperature rise as well as the effect upon life reduction under nonideal supply conditions
Keywords :
electric breakdown; harmonic distortion; matrix algebra; power cable insulation; power engineering computing; power supply quality; power system harmonics; thermal analysis; time-domain analysis; IEC-287; cable temperature rise; computer simulation; electrical and thermal models; insulated power cables; life expectancy; life reduction; mutual thermal interaction; nonideal supply conditions; power quality degradation; power quality impact; thermal behaviour; thermal models; three-phase representation; time domain computer program; Cable insulation; Cables; Copper; Dielectric losses; Dielectrics and electrical insulation; Integrated circuit modeling; Power quality; Temperature; Thermal conductivity; Thermal engineering;
Conference_Titel :
Harmonics and Quality of Power, 2000. Proceedings. Ninth International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-6499-6
DOI :
10.1109/ICHQP.2000.896847
