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6CCVD Research

High voltage dielectric diagnosis using automatic capacitance & dissipation factor test system

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2016-07-01
AuthorsSakshi Singh, M.M. Mohsin, A. Masood
InstitutionsAligarh Muslim University
Citations4

Abstract

Section titled ā€œAbstractā€

Failure of dielectric material in power equipment usually results into undesired outages and expensive replacements. Chances of failure increase with increase in electric stress on dielectric materials at high voltages. It is therefore; necessary to assess the electrical insulating properties of the materials before their practical use. This research work was aimed to determine different inherent properties of dielectric materials like volume resistivity; dielectric constant; loss tangent and co-relate them on an empirical basis by using variables predicted by basic theory. A simple equation to predict dielectric strength using ASTM electrode system; has been proposed for insulating materials like Leatheroid; Diamond dotted paper; Paper phenolic sheet; Glass bonded mica paper; Nomex and Epoxy resin fiber glass. Values of the parameters required in the equation may be obtained by performing non-destructive dielectric diagnostic measurements using an advance capacitance and tan delta bridge. This is expected that the suggested equation will be useful to practicing engineers and designers for quick estimation of electric stresses in dielectric materials studied in this research work.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2004 - Standard test methods for ac loss characteristics and permittivity (dielectric constant) of solid electrical insulation
  2. 2016 - Breakdown Strength of solid Insulating Materials in Ambient Medium
  3. 2013 - Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
  4. 2005 - IEEE guide for the statistical Analysis of electrical insulation breakdown data
  5. 2013 - Nomex paper type 410
  6. 1954 - Dielectric Materials and Applications
  7. 1927 - International Critical Tables of Numerical Data; Physics; Chemistry and Technology
  8. 2008 - Materials Handbook: A Concise Desktop Reference
  9. 2008 - High Voltage Insulation Engineering: Behaviour of Dielectrics; Their Properties and Applications

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