Effect of dissolved water in several kinds of liquid dielectrics on conduction

1 .Introduction Generally it is known that water in liquid dielectrics influence to electrical conduction and breakdown phenomena. Such water in dielectrics has been understood that they behaved as the carrier with electrical charge sometimes or the conduction bridge sometimes. In the past studies on conduction of liquid insulators, it is doubtful whether dissolved water can be measured completely or not. Still more the state of water in liquid dielectrics can not be measured by Karl Fisher’s method also. Because Karl Fisher’s Method which use chemical reaction can not measure whole water in liquid and their state always. Therefore the relation between the amount of the water and the electrical phenomena had not been clearly. On the other hand the observing method of state and agglomeration of water has been published by chemical researchers as the result measured by Near Infra Red Ray(N1R) or Infra Red Ray(1R) Method. At the region IR, it has been published that the agglomeration of the water classified into Monomer, Dimmer, Trimmer((H20)1,(H20)2,(H20)3 or n). In this paper, using FT-IR Method and Karl Fisher’s Method the state and agglomeration of water and the amount of water in several kinds of liquid materials are measured. And using amount of the Monomer, Dimmer and Trimmer measured by FT-IR Method under electrical stress, the relation between the water in these liquids and conduction are discussed. At the result, it is seen that the conduction in the liquids depend on amount of Dimmer except Silicon Oils which consist of polymeric structure. And, at the case of Silicon Oils the increasing Dimmer which is little part of whole Dimmer influence to conduction phenomena.