Prediction Flashover Voltage on Polluted Porcelain Insulator Using ANN

Computation of AC flashover voltage of polluted HV insulators using a dynamic arc model

Flashover of polluted insulators is still a serious threat to the safe operation of a power transmission system. Despite the extensive investigations carried out on the pollution performance of the insulators, the flashover characteristics are not well understood. Recent theoretical and experimental research on polluted insulators is yet to yield a perfect generalized mathematical model which c...

Designation of an Indicator for flashover prediction of porcelain and glass insulators based on experimental tests.

Flashover of polluted insulators in contaminated areas is one of the most important factors influencing the operation of transmission and distribution lines and finally line outages. Therefore, it is essential to prevent and detect flashover in the insulators. Hence, utilizing the insulator status monitoring systems and predicting their functions have absorbed a lot of attention over the recent...

Prediction of Flashover Voltage of Insulators Using Low Voltage Surface Resistance Measurement

Study on Insulator Flashover Voltage Gradient Correction Considering Soluble Pollution Constituents

Dongdong Zhang 1, Zhijin Zhang 1,*, Xingliang Jiang 1, Zhongyi Yang 1, Jiayao Zhao 1 and Yongfu Li 2 1 State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Shapingba District, Chongqing 400044, China; [email protected] (D.Z.); [email protected] (X.J.); [email protected] (Z.Y.); [email protected] (J.Z.) 2 State Grid Chongqing Electr...

Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion

In order to study the flashover mechanism of polluted insulators under AC voltage, a new arc propagation criterion which is based on an arc root voltage gradient is proposed. This criterion can explain the variation of the arc root voltage gradient in the arc propagation process. Based on this criterion, a new distributed parameter electrical circuit flashover model of polluted insulators is pr...