円筒誘電体表面の沿面放電に及ぼすバリアの影響

概要

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The study of the creeping discharge is very important on theengineering from the viewpoint of the dielectric breakdown prevention.The creeping discharge develops on the dielectric surface,when the abnormal voltage like an inductive lightning surge invades to the equipment inside.Creeping discharge can develop on the plane and the cylinder dielectric surface,and it causes the dielectric breakdown phenomenon.It is necessary to clarify the creeping discharge phenomenon in order to prevent the accidents of di electric breakdown in the equiment.However,there are many unsolved points in the characteristics of the creeping discharge.The cylinder dielectrics are used for the coating for wires inside a high voltage equipment like the transformer.The creeping discharge develops along the iusulated wire surface inside the high voltage equipment,whenthe inductive lightning surge invades to one.In a high voltage installation, it is important to stop the development of creeping discharge in safety aspect. In this paper,I report the characteristics of creeping discharge which develops along the cylinder dielectric surface with the barrier.It has been clarified that the blocking effect on the development of positive and negative creeping discharges.
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