Rate of energy absorption as indicator for the tracking/erosion test of silicone rubber

Abstract

An extensive laboratory test program was used to investigate the performance of silicone rubber material samples of various grades when subjected to inclined-plane test conditions. In this paper, the leakage current and applied voltage waveforms were monitored and stored. The captured waveforms were then analyzed, and a number of parameters characterizing the waveforms (FFT, THD, power, energy, and power factor angle, charge and absorbed energy) were calculated. The use of the calculated parameters as possible indicators of material degradation was investigated. In many cases, no obvious trends with time have emerged. However, the results for the absorbed energy and its rate of change show different trends for samples approaching failure, i.e. end-of-life. These observations may be useful in predicting imminent sample failure, and the derived rate of change of energy absorption factor may be a more quantitative indicator of sample level of degradation and, hence, material classification.

Ignition and advancement of surface discharges at atmospheric air under positive lightning impulse voltage depending on perpendicular electric stress and solid dielectrics: modelling of the propagating phenomenology

“…Their thermal results allowed to discriminate and to quantify more accurately the convective and evaporation heat losses associated with the power dissipation. Crespo-Sandoval et al [9] focused on tracking and erosion tests on SiR insulators by calculating various parameters (FFT, THD, energy and power factor) to be used as possible indicators of the materials' failure. They found out that the derived rate of energy absorption may be used as a quantitative indicator of degradation level of sample.…”

Modelling on Tracking Test Condition of Polymer Nanocomposite using Finite Element Simulation

“…To study the electrical performances of polymeric insulating materials, LC measurement are used as the tools to indicate the deterioration of the materials [4,5].The online monitoring of LC has been developed by previous researchers and this LC are acquired throughout the duration of six-hour [6][7][8]; Indeed, the obtained LC are proportional to degradation of polymer materials [9,10]. The influence of contaminant conductivity was studied using three conditions which are coastal with conductivity of 4746 µS/cm, industrial (818µS/cm) and NH 4 Cl (550 µS/cm) and the result shows that industrial contaminant gives a smallest LCvalue of 327.6 mA with the lesser degradation [11].…”