Title :
Water treeing and condition assessment of high voltage XLPE cables
Author :
Hvidsten, Sverre ; Faremo, Hallvard ; Eriksson, Roland ; Min, Wei
Author_Institution :
Energy Res., SINTEF, Trondheim, Norway
Abstract :
The results show that the degree of water treeing in HV XLPE cables (36 kV and above) is strongly dependent upon the cable design and the service (system) voltage. The water trees are typically relatively short, but their density is similar to that observed in medium voltage cables with similar design. The results from the nondestructive diagnostic testing show that it can be possible to detect water treeing also in old high voltage cables extending diagnostic techniques developed for medium voltage cables.
Keywords :
XLPE insulation; insulation testing; nondestructive testing; power cable insulation; trees (electrical); HV XLPE cables; condition assessment; medium voltage cables; nondestructive diagnostic testing; old high voltage cables; service voltage; water treeing; Breakdown voltage; Cable insulation; Dielectric loss measurement; Dielectric measurements; Electric breakdown; Frequency measurement; Medium voltage; Performance evaluation; Tree graphs; Trees - insulation;
Conference_Titel :
Electrical Insulation, 2002. Conference Record of the 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7337-5
DOI :
10.1109/ELINSL.2002.995893
