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High voltage outdoor composite insulators used on transmission lines can be subject to degradation due to electrical discharge activity at the core-sheath interface. A methodology is described to explore the effect of de-bonding or loss of adhesion between the sheath and core in composite insulators. The use of planar geometry materials allows interfacial pressure to be varied and facilitates physical...
Gaseous cavities within the insulating materials during manufacturing are potential sources of electrical trees which can lead to continuous degradation and breakdown of materials due to Partial Discharges (PD). To determine the suitability of use and to acquire the data for the dimensioning of electrical insulation systems breakdown voltage of insulators should be determined. In this paper, an Adaptive...
This paper proposes a partial discharge analysis in cylindrical insulators model for finding electrical parameters. There are three types of electric insulator, namely liquid, solid and gas insulator. The capacitance, dielectric loss factor (tandelta) are found by measuring PD Pattern of each insulator. The power dielectric loss (Pd) of each electric insulator also calculates by using the result of...
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