Satisfying diverse customer needs leads to proliferation of product variants. It is imperative to model the coherence of functional, product and process varieties throughout the design chain. Based on a model-based systems engineering approach, this paper applies the Systems Modeling Language (SysML) to model design chain information. To support variety management decisions, the SysML-based inf...

Abstract In order to clarify the distribution law of ultraviolet photon field in gas insulated switchgear busbar, meanwhile correct detection range sensor, optical model busbar based on uniform theory diffraction is proposed ray tracing. distributions radiation fields are calculated when partial discharge occurs at key positions such as basin insulator and conductor. Based average irradiance, m...

Abstract Post switchgear of substation in a gale area is typical wind-sensitive structure. In order to reduce the wind-induced response post area, this paper, according theoretical formula optimal frequency ratio and damping TMD given by Den Hartog, tuned mass damper (TMD) proposed vibration first-order mode outside plane The Simulink simulation model simplified structure with established fluct...

The development of power grid infrastructure and increasingly stringent environmental regulations have intensified work, carried out by researchers electrical equipment manufacturers, to develop innovative gas-insulated, environmentally neutral devices. emergence new designs circuit breakers disconnectors, in which the resulting electric arc is extinguished a vacuum environment, requires approp...

In view of the fact that partial discharge (PD) signal energy is mainly concentrated below hundreds megahertz, ultra-high frequency part weak, and interior space switchgear narrow, this paper proposes a new method for PD detection based on near-field detection. Firstly, principle PD, field characteristics in are analyzed. After that, probe designed with an electric small loop structure. Based i...

Currently, the existing condition-based maintenance (CBM) diagnostic test practices for ultrasound require tester to interpret results manually. Different testers may give different opinions or interpretations of detected ultrasound. It leads wrong interpretation due depending on experience. Furthermore, there is no commercially available product standardize data. Therefore, objective correct a...