Abstract Partial discharge optical measurement has the characteristics of high sensitivity and strong anti-interference, but its detection effect is greatly affected by deployment position sensor. Therefore, based on radiation transmission signals, sensors in equipment optimized. In this paper, an optimal layout scheme switch cabinet lighting unit distribution partial photometric proposed. Firs...

The ultra-high frequency (UHF) method is widely used in insulation condition assessment. However, UHF signal processing algorithms are complicated and the size of the result is large, which hinders extracting features and recognizing partial discharge (PD) patterns. This article investigated the chromatic methodology that is novel in PD detection. The principle of chromatic methodologies in col...

Abstract Partial discharge (PD) is treated as one of the major threats for gas insulated switchgear (GIS). By using new generation multispectral detection sensor named SiPM-based (SMDS), time resolved partial with information (named MTRPD) creeping discharge, suspension and tip respectively. It indicates that MTRPD specific defect perform unique spectral fingerprints in mode. Based on graph cha...

This paper presents the results of a comparative analysis dielectric strength disconnecting vacuum interrupters operating on air and helium. The breakdown voltage Ud was measured in pressure range from 8.0 × 10−4 Pa to 3.0 101 for 7.0 102 helium, while varying interelectrode distance 1.0 5.0 mm. Dedicated laboratory workstations were used determine actual values tested precisely measure record ...

Due to the important increase of the power of electrical transmission and distribution grids expected for the following years, especially in developing countries such as Kenya, Brazil, Philippines or Mexico among others, that have planes of generating energy from clean sources far away from the centres of consumption [1] it becomes a matter of special importance adapting and developing new subs...