Zobrazeno 1 - 10
of 18
pro vyhledávání: '"G.H. Vaillancourt"'
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation, 7 (1) [see also IEEE Transactions on Electrical Insulation]
The partial discharge (PD) measurements on power transformers are studied with a view toward discrimination and classification of different discharge sources. For this purpose digital analysis is applied to power transformers and reactors going throu
Publikováno v:
IEEE Transactions on Power Delivery. 13:661-666
Hydro-Quebec's experience with polymer insulators began in 1977. A sixteen km section of a 735 kV transmission line near Quebec City was then re-insulated with 282 composite insulators of three different makes in equal proportions. The objective was
Publikováno v:
IEEE Transactions on Power Delivery. 9:208-219
Until now at Hydro-Quebec, overhead power transmission line porcelain insulators had been tested by the buzz method which simply consists in applying a short-circuit to each insulator in a string and listening for a buzz-like sound indicating a good
Publikováno v:
Scopus-Elsevier
PD measurements on power transformers are studied with a view toward discrimination and classification of different discharge sources. For this purpose digital analysis is applied to various power transformers going through acceptance testing.
Autor:
Q. Su, G.H. Vaillancourt
Publikováno v:
Conference Record of the 1996 IEEE International Symposium on Electrical Insulation.
Noise is probably the most difficult problem with online partial discharge (PD) measurements. This problem could be alleviated by the proposed multi-terminal measurement method. With a suitable frequency band, the first peak ratios of terminal signal
Autor:
G.H. Vaillancourt, R. Meunier
Publikováno v:
ICDL'96. 12th International Conference on Conduction and Breakdown in Dielectric Liquids.
In-service monitoring of power apparatus has become increasingly important for electric power utilities. In power transformers, many techniques are used for this purpose including gas-in-oil analysis and acoustic and electrical partial discharge dete
Publikováno v:
2000 IEEE ESMO - 2000 IEEE 9th International Conference on Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings. ESMO 2000 Proceedings. Global ESMO 2000. The Power is in Your Hands (Cat. No.00CH37183).
Two large electric utilities, located on the US West Coast, use a considerable number of composite insulators on their power transmission lines. Some of these insulators may be prone to premature insulation degradation caused by poor design, manufact
Autor:
G.H. Vaillancourt, P. Bilodeau
Publikováno v:
11th International Symposium on High-Voltage Engineering (ISH 99).
In the early 1990's, Hydro-Quebec has installed series compensation on its 735 kV lines. The compensation apparatus is mounted on large platforms insulated from ground by porcelain columns and composite insulators. Following problems encountered with
Autor:
G.H. Vaillancourt, R.A. Malewski
Publikováno v:
IEEE Transactions on Power Delivery. 4:421-427
A six-channel digital recording system has been developed for monitoring partial discharges (PDs) in the HV insulation of power transformers during acceptance tests. The analog PD signals are converted to digital words describing their apparent charg
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