Title :
Sensitivity Check of Internal Sensor for Power Transformer Partial Discharge Measurements
Author :
Agoris, P.D. ; Meijer, S. ; Smit, J.J. ; Lopez-Roldan, J.
Author_Institution :
High-voltage Technol. & Manage., Delft Univ. of Technol.
Abstract :
The UHF partial discharge measurement technique is under research in order to be used for the detection, identification and localization of discharging defects within a power transformer. However, it requires installed dielectric windows on the transformer tank for the placement of the UHF sensors, a feature not available in all transformers especially old ones that have a higher risk of failure. Therefore, it is necessary to develop UHF sensors that can be used in the case of transformers without dielectric windows. In this paper such a sensor in its early design stages is studied, which can be inserted in a transformer from one of its valves
Keywords :
UHF detectors; UHF measurement; insulation testing; partial discharge measurement; power transformer insulation; power transformer testing; UHF partial discharge measurement technique; UHF sensors; dielectric windows; discharging defects detection; discharging defects identification; discharging defects localization; internal sensor; power transformer; sensitivity check; transformer tank; Costs; Dielectric measurements; Frequency; Oscilloscopes; Partial discharge measurement; Partial discharges; Power transformer insulation; Power transformers; Spectral analysis; UHF measurements;
Conference_Titel :
Properties and applications of Dielectric Materials, 2006. 8th International Conference on
Conference_Location :
Bali
Print_ISBN :
1-4244-0189-5
Electronic_ISBN :
1-4244-0190-9
DOI :
10.1109/ICPADM.2006.284159
