Modeling of Final Jump Dischare Region for Electrical Breakdown Phenomena in Long Air Gaps

随着对电力需求的增加，需要能够传输大量电力的高可靠性和高效率的传输系统。从经济的角度出发，设计绝缘测试仪，以便更准确地预测长空气间隙在操作冲击电压下的闪络特性，是有益的。根据实验结果，经验地确定了各种放电条件下绝缘设计中所需的重要闪络特性。在本研究中，一个组合工程模型的领导人传播已被提出作为一个专家系统与微型计算机。建立了最后跳跃放电区的等效阻抗模型，模拟了电压降和快速电流建立过程，并与已有的模型进行了比较，结果与实验结果吻合较好。

With the increasing demand for electric power, a transmission system of high reliability and efficiency capable of transmitting large quantities of power is demanded. From the viewpoint of ecomony, it is useful to design the insulated instrument such that a more accurate predetermination of the flashover characteristics of long air gaps under the switching surge voltages can be taken.Important flashover characteristics used in insulating designs under various discharge conditions were determined empirically from experimental results. In present research, an combined engineering model of leader propagation has been proposed as an expert system with a microcomputer. Also, an equivalent impedance model of the final jump discharge region has been developed to simulate the voltage drop and rapid current buildup.The results given by these models-compared to those of previous models are in better agreement with those obtained from experiments.