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Characterization of dielectric properties of insulating materials for use in an HVDC reference divider
RISE., SP – Sveriges Tekniska Forskningsinstitut.ORCID-id: 0000-0001-5044-8266
RISE., SP – Sveriges Tekniska Forskningsinstitut.ORCID-id: 0000-0002-5121-8152
2012 (Engelska)Ingår i: CPEM Digest (Conference on Precision Electromagnetic Measurements), 2012, s. 80-81Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Dielectric properties of polyethylene (PE), polyoxymethylene (POM) and ceramic glass (MACOR) are compared. Their suitability to act as a support for a resistor chain in a wideband HVDC reference divider is characterized. The support material forms a parallel capacitance to the resistive resistor chain, and a bandwidth of more than 100 kHz is needed. The frequency dependence of dielectric constant has been measured in the range 20 - 100 kHz. The depolarization current of these materials was measured to be at least 6 orders of magnitude lower than the current through the resistive chain. Neither MACOR nor PE does build up space charge which POM does. Possessing the highest dielectric constant makes MACOR well suited for the application. © 2012 IEEE.

Ort, förlag, år, upplaga, sidor
2012. s. 80-81
Nyckelord [en]
current measurement, dielectric, high-voltage techniques, HVDC, metrology, Ceramic glass, Depolarization currents, Frequency dependence, High voltage techniques, Orders of magnitude, Parallel capacitance, Polyoxymethylene, Support materials, Wide-band, Acetal resins, Dielectric materials, Electric current measurement, Electromagnetism, Measurements, Resistors, Dielectric properties
Nationell ämneskategori
Elektroteknik och elektronik
Identifikatorer
URN: urn:nbn:se:ri:diva-32465DOI: 10.1109/CPEM.2012.6250670Scopus ID: 2-s2.0-84866783196ISBN: 9781467304399 (tryckt)OAI: oai:DiVA.org:ri-32465DiVA, id: diva2:1154714
Konferens
2012 Conference on Precision Electromagnetic Measurements, CPEM 2012, 1 July 2012 through 6 July 2012, Washington, DC
Tillgänglig från: 2017-11-03 Skapad: 2017-11-03 Senast uppdaterad: 2019-06-20Bibliografiskt granskad

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Elg, Alf PeterBergman, Anders

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