Title :
On-line time domain reflectometry measurements of temperature variations of an XLPE power cable
Author :
Dubickas, V. ; Edin, H.
Author_Institution :
Sch. of Electr. Eng., R. Inst. of Technol., Stockholm
Abstract :
In this paper an on-line time domain reflectometry system and a four-days measurements sequence are presented. Detected pulse velocity variations are attributed to temperature variations of the cable caused by a load cycling. The changes in the pulse velocity are verified by propagation constant measurements of a power cable at different temperatures in 300 kHz-500 MHz frequency range. Also an influence of temperature dependent semiconducting screens and XLPE insulation to the changes in the cable´s capacitance is investigated.
Keywords :
XLPE insulation; capacitance; load (electric); power cable insulation; time-domain reflectometry; 0.3 to 500 MHz; XLPE insulation; capacitance; load cycling; on-line time domain reflectometry measurement; power cable; pulse velocity variation; temperature dependent semiconducting screens; temperature variation; Frequency measurement; Power cables; Power measurement; Propagation constant; Pulse measurements; Reflectometry; Temperature distribution; Temperature measurement; Time measurement; Velocity measurement;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2006 IEEE Conference on
Conference_Location :
Kansas City, MO
Print_ISBN :
1-4244-0547-5
Electronic_ISBN :
1-4244-0547-5
DOI :
10.1109/CEIDP.2006.312059
