- Tytuł:
- Investigation on the applicability of the time domain analysis of discharges in gases for the defect identification at AC voltage
- Autorzy:
-
Lühring, U.
Wienold, D.
Jenau, F. - Powiązania:
- https://bibliotekanauki.pl/articles/136164.pdf
- Data publikacji:
- 2017
- Wydawca:
- EEEIC International Barbara Leonowicz Szabłowska
- Tematy:
-
AC voltage
contact noise
corona discharge
pulse shape
surface discharge
time domain analysis - Opis:
- The partial discharge diagnosis is an established instrument for the condition assessment of high voltage insulations and equipment. Under AC voltage stress the phase resolved pattern is of great significance in order to become aware of the type of fault. As a result of the inapplicability for DC voltage stress, approaches for alternative interpretation techniques such as the time domain analysis of partial discharges were identified in recent investigations. In these different types of fault are taken into account as well as different insulating media. The purpose of this paper is to investigate whether an analysis of the pulse shape is also applicable for the defect identification under AC voltage stress. By focussing on gaseous insulating media, contact noise and surface discharges are emulated in ambient air, whereas corona discharges are emulated in ambient air and oxygen. A method for analysing discharges, occurring in the negative and the positive half-wave of the test voltage, is proposed and discussed.
- Źródło:
-
Transactions on Environment and Electrical Engineering; 2017, 2, 1; 34-41
2450-5730 - Pojawia się w:
- Transactions on Environment and Electrical Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł