The frequency dependent response of the electrical impedance of UO2

Cable Diagnostic Focused Initiative

“…Dielectric Spectroscopy is a similar technique to Tan δ; however, the Tan δ is established by measuring the real and imaginary components of a cable system current ( Figure 35) at a range of applied voltage frequencies, typically 0.001 to 100 Hz [26], [33] - [39]. The benefit of this process is that it supplies additional information about the cable system insulation.…”

“…The frequency is then stepped to cover the complete frequency range. The data may be interpreted as frequency spectra [28] or via equivalent circuit models [33,39]. The equivalent circuit model translates the measured "complex" current into a "complex" permittivity where the real part of the permittivity represents the direct capacitance and the imaginary part represents the resistive or loss component.…”