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.

fYear

2006

fDate

38869

Firstpage

230

Lastpage

233

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICPADM.2006.284159

Filename

4062648