Soderberg electrodes feature prominently in the operation of metallurgical electrical furnaces. The electrode material must bake before entering furnace; failure to will lower efficien...

Using IEC 61850 standard would increase the reliability and availability of electricity network and put a huge impact on network automation. Even though much research works has been done in substation system reliability, there is a few works in automated substation control system reliability. This paper evaluates the reliability of substation automation system based IEC 61850 comparatively cons...

A scaling analysis introduced by Halperin, Feng and Sen to estimate critical exponents for the electrical conductivity and elastic constant is extended to determine the critical behaviour of electrical and mechanical failure near the percolation threshold for a class of disordered continuum systems (Swiss-cheese models). Above the dimension dc = 3/2 for the electrical problem and at any dimensi...

In this study, the analysis of effect loading on DGA results Paiton UAT 2A transformer units 1 and 2 was carried out using (Dissolved Gas Analysis) test tool with X-DGA kelman to determine gas content contained in oil or oil. The is a type oil-cooled distribution that uses Nytro Libra type. useful for insulating cooling media so does not get hot. there causes failure. failure called fault which...

Faults and damage in oil-filled power transformers has a devastating effect on the overall reliability of electrical power systems. Several factors, especially electrical and thermal stresses age the transformer and subject them to incipient faults. These faults, if left undetected will cause deterioration and eventually lead to failure of the transformer [1]. The presence of faults such as arc...

This paper describes preliminary studies on a prototype robot for the inspection/maintenance of electrical power lines. Faulty insulators or abnormal objects can be detected before causing a failure in the distribution of electrical energy. The robot uses a statically stable variation of the brachistochrone motion to move along the power lines and overcome the standard obstacles present in the ...

Reliability analysis of the electrical control system of a subsea blowout preventer (BOP) stack is carried out based on Markov method. For the subsea BOP electrical control system used in the current work, the 3-2-1-0 and 3-2-0 input voting schemes are available. The effects of the voting schemes on system performance are evaluated based on Markov models. In addition, the effects of failure rat...

In this paper, an innovative methodology for predictive reliability of intelligent power devices used in automotive applications is considered. Reliability management is done at all levels of the technological process. This method is based on the failure analysis along with electro-thermomechanical modeling and on extreme fatigue testing. A new power MOS device has been electrically fatigued in...

Partial discharge is the commencement of failure of insulation of electrical devices used at high voltage. If such discharge is not detected then fault may increase at the working duration. Basically partial discharge is the cause of failure of insulation in electrical equipment. The insulation of electrical equipment deteriorates due to thermal, mechanical, electrical and environmental stresse...