Monitoring System of High Voltage Dielectric Equipment

Abstract

Based on the research of the main causes of dielectric elements premature aging and electrical destruction of primary dielectric elements in high voltage electrical equipment the complex method for remote monitoring of said electrical equipment has been developed. The developed mobile diagnostic device is allowing detection and periodic control of the most dangerous defects. The set of diagnostic parameters of defects was experimentally obtained by using three physical methods (electromagnetic, optical, and acoustic), and allows to inspect the origin and development of defects, and to determine residual life of dielectric elements with a sufficient degree of reliability. The researched characteristics of the kinetics of reduction in operating parameters of polymer insulators permitted the development of the detection of accelerated increase in defects under the influence of ultra-large partial discharges.

Assessment of the Technical Condition of High-Voltage Insulators during Operation

“…Therefore, the conditions for measuring a set of PD characteristics, to assess the HVI defects, are periodically improved, which is reflected in Russian and International standards. Moreover, at the beginning of the XXI century, it was theoretically predicted [3][4][5][6], and then experimentally established [7][8][9][10][11][12][13][14][15][16], that powerful PDs can also cause degradation of the HVI dielectric materials. However, the processes of PD generation under the action of high voltage are still poorly understood.…”