Effect of dissolved water on electrical conduction in liquid dielectrics

Abstract

The state of water in liquid dielectric was analyzed by Fourier transform infrared spectroscopy during a conduction test. The liquid dielectric used was di-octyl-phthalate (DOP) with different proportions of water. The free water in DOP is shown to contribute to the conduction. The states of the free water or weakly bound water are shown to change under stress.<>