Zobrazeno 1 - 10
of 47
pro vyhledávání: '"H.J. van Breen"'
Publikováno v:
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation.
The objective of power plant maintenance is to reduce the probability that an unforeseen forced outage takes place. Balancing maintenance with reliability is a key issue for the economical performance of a power plant. The paper shows that the turbo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdc36dc9b12e4130434055783a8b89f2
https://doi.org/10.1109/elinsl.2004.1380637
https://doi.org/10.1109/elinsl.2004.1380637
Publikováno v:
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation.
This work presents the results of a stator insulation weak spot localization measurement on a 6 kV 5.5 MVA motor. The motor in question was build in 1953 and its class B insulation system has been in operation ever since. After 50 years of running, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8ca5f080ad2cd509dd8ef234f24036d
https://doi.org/10.1109/elinsl.2004.1380426
https://doi.org/10.1109/elinsl.2004.1380426
Publikováno v:
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480).
Online PD measurements on turbo generators are more in common now than they were 10 years ago. During this period much knowledge has been obtained about the behavior and problems encountered when performing online PD measurements. Experience also tho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e93395c4b7360ca63e07f8b536dc1d55
https://doi.org/10.1109/eicemc.2003.1247850
https://doi.org/10.1109/eicemc.2003.1247850
Publikováno v:
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480).
One of the best symptoms for the presence of defects in the HV insulation system is the detection of partial discharges (PD). Weak spots may be found by evaluating the PD repetition rate over the entire insulation system. If a severe degradation syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d85b5a2e92ebce5457623fe345d0b64
https://doi.org/10.1109/eicemc.2003.1247851
https://doi.org/10.1109/eicemc.2003.1247851
Publikováno v:
Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316).
This paper presents a method to perform online time domain partial discharge measurements in a high noise and disturbance environment. The method combines the sensitivity of an online VHF PD (very high frequency partial discharge) measurement with th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6e47be38dd2fb9ab21eb4c67a5b7406
https://doi.org/10.1109/elinsl.2002.995874
https://doi.org/10.1109/elinsl.2002.995874
Publikováno v:
Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316).
This paper summarizes the results of a preliminary study on the influence of generator operating conditions on its partial discharge (PD) activity. This study covers results from the field measurements as well as from laboratory investigations. The t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::349ddc87499d20fcf37b5509f8da07a4
https://doi.org/10.1109/elinsl.2002.996006
https://doi.org/10.1109/elinsl.2002.996006
Publikováno v:
1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319).
The dielectric response provides information on the physical and chemical structure of a material. For aging processes that affect physically and/or chemically insulating materials, the change in polarization phenomena can be exploited to monitor ins
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b3389488ea4390e9afb4101829a4c40
https://doi.org/10.1109/ceidp.1999.807869
https://doi.org/10.1109/ceidp.1999.807869
Autor:
Johan J. Smit, H.J. van Breen, M. Krieg-Wezelenburg, Edward Gulski, H.F.A. Verhaart, W. de Leeuw
Publikováno v:
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264).
Presently, an expert is needed to interpret the results of an on-line VHF PD measurement on a turbogenerator. And even then, different experts will interpret the results differently. Standardization of the interpretation of online VHF PD measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48fdc8d32781ae5d5048773302024941
https://doi.org/10.1109/eeic.2001.965711
https://doi.org/10.1109/eeic.2001.965711
Publikováno v:
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117).
Measurement of the polarization spectrum by Recovery Voltage Measurement (RVM) is one among several methods, which are proposed in the literature to characterize the state of deterioration of water-treed cable insulation. It has previously been shown
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2392987132d14871b1365cde5d246c09
https://doi.org/10.1109/icsd.2001.955709
https://doi.org/10.1109/icsd.2001.955709
Publikováno v:
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264).
In this paper, preliminary results of testing generator stator insulation using PD detection at oscillating voltage waves are presented. Based on laboratory investigation, on a full scale stator insulation system, a comparison of PD behavior: the PD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::212e4c64201212b85fa2418b0521030b
https://doi.org/10.1109/eeic.2001.965652
https://doi.org/10.1109/eeic.2001.965652