The problem of automatic fault diagnosis has been an ongoing research in power system. This paper proposes a design of a multi-agent system for bushing condition monitoring system. The agents collect dissolved gases measurements from gas chromatography, analyze the measurements and perform fault diagnosis. The interpretation agents are encapsulated with artificial neural networks so as to enabl...

This paper is based on an independent study which had two goals. First was to apply the principles of dynamics to understand the behavior of complex mechanical systems. Within this theoretical framework, the Automatic Dynamic Analysis of Mechanical Systems (ADAMS) software package was used to make virtual models and accurate simulations of these systems. This part of the project was mainly a le...

In the article, study of polymer properties is dealt with as a result production technology on pat-terns, which were made by injecting, machining extruded profile and 3D printing. All samples from iglidur® J260 material, they subsequently tested in order to find out roughness, breaking strength, hardness according Shore, friction coefficient swelling. Further-more, exposed light microscopy...

An electrostatic voltmeter possessing several unique features is described. The size is a minimum for such instruments, since the potential difference is applied to two electrodes, the geometrical arrangement of which is analogous to concentric spheres. The inner electrode is supported on the end of an insulating bushing introduced through the outer electrode, which is a metal can. The inner el...

The most common cause of power transformer failures is mechanical defect brought about by excessive vibration, which is formed by the combination of multiples of a frequency of 120 Hz. In this paper, the types of mechanical exciting forces applied to the power transformer were classified, and the mechanical damage mechanism of the power transformer was identified using the vibration transfer ro...

Equal margin design method based on the classic analytic formula is widely used in development of extra-high voltage bushing products, and its effectiveness practicality have been fully validated. However, model temperature factors significant impact internal E-field distribution UHVAC UHVDC condenser, which traditional difficult to evaluate quantitatively, so it’s necessary improve equal metho...

INTRODUCTION Although total elbow arthroplasty (TEA) is a clinically successful procedure, long-term complications due to bushing wear and osteolysis are a few of the reasons for limited long-term survivorship.[Goldberg, 2008] There is no published information on in vitro wear simulations of total elbow prostheses to characterize and predict in vivo performance nor are there any currently accep...

Development of the power grid towards a more reliable and smarter system requires frequent on-line monitoring of the power components. Power transformers and their bushings are particularly important components in a power transmission system and their insulation degradation may lead to catastrophic failures. Time consuming and costly replacement of these components raise the importance of their...