Air-insulated switchgear plays an important role in distribution network and partial discharge (PD) is one of the common faults its operation. The method gas component analysis, which to detect chemical products, a novel discover PD. In order study feasibility method, monitoring experiment characteristic gases, comprising carbon monoxide (CO), nitrogen dioxide (NO2), ozone (O3), metal protrusio...

In the power industry, sulfur hexafluoride (SF 6 ) as an insulating gas is widely used in gas-insulated switchgears (GISs). Owing to latent inner insulation defects of GIS, various SF decompositions are generated process partial superheating and discharge (PD). The decomposition components concentrations different under PD types. A number sensors were reported for detection these decompositions...

There are significant challenges associated with qualitative and quantitative nucleic acid tests performed in diagnostic laboratories. The development of internationally available certified reference materials which can be traced to reference measurements will contribute to a better understanding of the performance characteristics of nucleic acid tests and enhance reliability and comparability ...

While not designed with communication applications in mind, power lines have been attractive targets for providing ancillary services decades. Unfortunately, loads and switchgear can easily interfere reliable both direct subtle ways. Power line (PLC) is therefore often relegated to non-critical control tasks like home lighting or appliance control, where difficulties failure simply result a wal...

Acoustic emission (AE) technology can predict the occurrence of partial discharge (PD) faults, which is used to improve safe operation level gas-insulated switchgear (GIS) equipment. However, strong noise interference from production site still main factor affecting identification accuracy. In this study, a simplified model designed approximate accumulation free metal particles on surface GIS i...

With the improvement of industrialization, importance equipment failure prediction is increasing day by day. Accurate gas-insulated switchgear (GIS) in advance can reduce economic loss caused power system to operate normally. Therefore, a GIS fault approach based on Improved Particle Swarm Optimization Algorithm (IPSO)-least squares support vector machine (LSSVM) proposed this paper. Firstly, f...