Zobrazeno 1 - 10
of 88
pro vyhledávání: '"James R. Melcher"'
Publikováno v:
IEEE Transactions on Electrical Insulation. 27:1083-1088
The dielectric properties of water-treed crosslinked polyethylene (XLPE) were studied by using a hollow microwave waveguide system between 135 MHz and 13.6 GHz. The dielectric loss of water-treed XLPE is proportional to water content. Water-treed XLP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3227a22cf14630fe64e7fef24c7638af
https://doi.org/10.1109/14.204857
https://doi.org/10.1109/14.204857
Publikováno v:
IEEE Transactions on Electrical Insulation. 26:181-199
A new instrument, the Absolute Charge Sensor (ACS), has been developed that measures the net charge density entrained in a fluid flow, independent of the fluid's electrical properties, velocity, and any electrification processes within the instrument
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f05df60109408a45b39b8f64696389e
https://doi.org/10.1109/14.78316
https://doi.org/10.1109/14.78316
Publikováno v:
IEEE Transactions on Electrical Insulation. 26:870-901
A Couette charger (CC) facility has been built to simulate flow electrification processes in transformers where transformer oil fills the annulus between coaxial cylindrical electrodes. Transient measurements with a step change in temperature have sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::981af6bd62530cedf2f34d71b0a37242
https://doi.org/10.1109/14.99098
https://doi.org/10.1109/14.99098
Autor:
H.A. Haus, James R. Melcher
Publikováno v:
IEEE Transactions on Education. 33:35-46
An approach to undergraduate electromagnetics is outlined that differs from the traditional sequence of statics followed by electrodynamics. The purpose is to capture student interest while teaching relatively simple fields by relating the topics to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a807799ca6a105aa1eae07fcbf9fcb8a
https://doi.org/10.1109/13.53625
https://doi.org/10.1109/13.53625
Effects of temperature and moisture on flow electrification in transformer pressboard/oil insulation
Publikováno v:
Conference on Electrical Insulation and Dielectric Phenomena.
A novel Couette charger facility has been built to simulate flow electrification processes in transformers, where transformer oil fills the annulus between coaxial cylindrical electrodes that can be bare metal or transformer pressboard covered. Flow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3add3072039be291428d75b5f83fb98f
https://doi.org/10.1109/ceidp.1989.69576
https://doi.org/10.1109/ceidp.1989.69576
Publikováno v:
Conference Record of the 1988 IEEE International Symposium on Electrical Insulation.
Experiments that are based on theoretical techniques for deducing continuum parameters from the gain-phase response of interdigital electrodes are described. They demonstrate the use of 50- mu m- or 1-mm-wavelength interdigitated electrodes for the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08ba9e8cdaaa1c1f52940b794fd17d4d
https://doi.org/10.1109/elinsl.1988.13894
https://doi.org/10.1109/elinsl.1988.13894
Publikováno v:
Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.
Charge separation near a liquid/solid interface is explored by electrokinetic pumping of Freon TF and transformer oil using high-voltage traveling waves. Fluid-head-displacement measurements show strong dependencies on peak voltage amplitude (1.0-2.5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::042de2ef7280de91b6e59e78bae00f95
https://doi.org/10.1109/ias.1988.25265
https://doi.org/10.1109/ias.1988.25265
Publikováno v:
1988. Annual Report., Conference on Electrical Insulation and Dielectric Phenomena.
The authors consider the use of a compact Couette charger of coaxial cylinders to measure basic parameters in flow-induced electrification of oil/pressboard models of transformer insulation. They describe a method for obtaining both the turbulent cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67985eb58389bca7753272470d746a74
https://doi.org/10.1109/ceidp.1988.26346
https://doi.org/10.1109/ceidp.1988.26346
Publikováno v:
Conference Record of the 1988 IEEE International Symposium on Electrical Insulation.
An instrument has been developed that provides an absolute measurement, independent of such properties of the fluid as electrical conductivity and trace materials that contribute to zeta potentials. Through a shielded sampling probe, it periodically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cf0c692ea1e58841ce1d8e377e93ecb
https://doi.org/10.1109/elinsl.1988.13857
https://doi.org/10.1109/elinsl.1988.13857
Publikováno v:
Conference Record of the 1988 IEEE International Symposium on Electrical Insulation.
Experiments have been conducted using 1-7- mu m-thick layers of plasma-deposited bromobenzene on the interdigitated 50- mu m-wavelength electrodes of a microdielectrometer chip. Gain-phase measurements in the frequency range of 0.005-10000 Hz, normal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::183f7ef166ca3cdfb4c6836ee225cb4f
https://doi.org/10.1109/elinsl.1988.13856
https://doi.org/10.1109/elinsl.1988.13856