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8 results on '"Drapeau, J. F."'

1. The effect of water ingress on dielectric properties of polyethylene cable insulation.

Author

Bernier, S., Drapeau, J.-F., Jean, D., and David, E.

Abstract

This paper reports on dielectric loss diagnostic features (absolute values, voltage dependence, etc.) measurements and results of residual breakdown voltages obtained on miniature (RG-58) cables as a function of water absorption and electrical aging by water trees (WT) under a 5 kV/mm voltage stress (AC). The dielectric losses were measured at voltages up to 5 kV (i) in polarization and depolarization using Time Domain Spectroscopy (TDS) and (ii) with a classical very low frequency (VLF) system using a 0.1Hz sine wave. The corresponding residual AC breakdown voltages were analyzed using the standard procedure. After ∼3000 h of water and voltage exposure, aged cable samples showed a relatively low level of degradation, mainly bow tie water trees, with longest being ∼19% of insulation thickness. TDS and VLF dielectric loss results show that for such an aging condition, the dielectric response is mainly dominated by the presence of water in the insulation. [ABSTRACT FROM PUBLISHER]

Published
2012
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4. Selection of Station Insulators With Respect to Ice and Snow--Part II: Methods of Selection. and Options for Mitigation.

Author

Farzaneh, M., Baker, T., Bernstorf, A., Burnham, J. T., Carreira, T., Cherney, E., Chisholm, W. A., Christman, R., Cole, R., Cortinas, J., de Tourreil, C., Drapeau, J. F., Farzaneh-Dehkordi, J., Fikke, S., Gorur, R., Grisham, T., Gutman, I., Kuffel, J., Phillips, A., and Powell, G.

Subjects
RELIABILITY in engineering, ELECTRIC fields, ELECTROMAGNETIC fields, ELECTROKINETICS, ENGINEERING, PROBABILITY theory
Abstract

In locations exposed to freezing conditions over the station service life, additional measures for selecting adequate station insulators at distribution and transmission voltage levels should be taken. This second part of the paper describes the selection process and mitigation options, based on the environmental parameters, as discussed in Part I. These include insulator size, shape, surface material, surface quality, electric field improvement, and orientation. [ABSTRACT FROM AUTHOR]

Published
2005
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5. Selection of Station Insulators With Respect to Ice and Snow- Part I: Technical Context and Environmental Exposure.

Author

Farzaneh, M., Baker, T., Bernstorf, A., Burnham, J. T., Carreira, T., Cherney, E., Chisholm, W. A., Christman, R., Cole, R., Cortinas, J., de Tourreil, C., Drapeau, J. F., Farzaneh-Dehkordi, J., Fikke, S., Gorur, R., Grisham, T., Gutman, I., Kuffel, J., Phillips, A., and Powell, G.

Subjects
ELECTRICITY, HIGH voltages, ELECTRONICS, HALL effect, ELECTRONIC amplifiers, REACTANCE (Electricity)
Abstract

In selecting adequate insulators for substations at distribution and transmission voltage levels, special measures may be needed in locations exposed to freezing conditions. This first part of the paper describes the environmental and insulator parameters that influence the risk of flashover on station insulators exposed to freezing conditions. [ABSTRACT FROM AUTHOR]

Published
2005
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6. Insulator Icing Test Methods and Procedures A Position Paper Prepared by the IEEE Task Force on Insulator Icing Test Methods.

Author

Farzaneh, M., Baker, T., Bernstorf, A., Brown, K., Chisholm, W. A., de Tourreil, C., Drapeau, J. F., Fikke, S., George, J. M., Gnandt, E., Grisham, T., Gutman, I., Hartings, R., Kremer, R., Powell, G., Rolfseng, L., Rozek, T., Ruff, D. L., Shaffner, D., and Sklenicka, V.

Subjects
ELECTRIC insulators & insulation, HIGH voltages
Abstract

Test methods for evaluating flashover voltage of ceramic and nonceramic insulators under ice, snow, and cold-fog conditions are recommended. The paper describes the procedure to be followed at various stages of an evaluation test including preparation of the test object, insulator precontamination, ice, snow, and cold-fog deposits as well as voltage applications and flashover voltage evaluation. Some relevant parameters for ice accretion, flashover voltage evaluation, artificial pollution, and power source requirements are taken from IEC 60129, IEC 60507, and IEEE Std.-4-1995 on standard techniques for high-voltage testing. [ABSTRACT FROM AUTHOR]

Published
2003
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8. Insulator Icing Test Methods and Procedure.

Author

Farzaneh, M., Baker, T., Brown, K., Chisholm, W. A., de Tourreil, C., Drapeau, J. F., Fikke, S., George, J. M., Gnandt, E., Grisham, T., Gutman, I., Hartings, R., Kremer, R., Powell, G., Rolfseng, L., Rosek, T., Ruff, D. L., Shaffner, D., Skienicka, V., and Sundararajan, R.

Abstract

This is a position paper prepared by the IEEE Task Force on Insulator Icing Test Methods. Test methods for evaluating flashover voltage of ceramic and nonceramic insulators under ice, snow, and cold-fog conditions are recommended. The paper describes the procedure to be followed at various stages of an evaluation test including preparation of the test object, insulator precontamination, ice, snow, and cold-fog deposits, as well as voltage applications and flashover voltage evaluation. Some relevant parameters for ice accretion, flashover voltage evaluation, artificial pollution, and power source requirements are taken from IEC 60129, IEC 60507, and IEEE Standard 4-1995 on standard techniques for high-voltage testing. [ABSTRACT FROM PUBLISHER]

Published
2002
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