This article presents the modeling of a transmission line with overhead, underground and underwater sections for study voltage unbalance predicted maximum load scenarios. The evaluation at design stage is an important preventive action not only reduction electrical losses, but also mitigation power quality phenomena operational interference in lines. After initial discussion about unbalance, it...

Abstract Mitigation and adaptation to climate change have been major driving forces in modernizing electric power infrastructure. Low quality has a significant impact on electrical equipment efficiency. Voltage unbalances one of the issues with low quality. This study used simulation method for supply voltage unbalance evaluate effect performance 3-phase transformers. The research results show ...

Rotating machines are commonly used in industrial applications. Mechanical faults such as rotor unbalance, shaft misalignment, pulley structural looseness, and bearing leading to unplanned shutdown based on the severity of these faults. The condition monitoring technique vibration analysis has potential detect diagnose a great number early stage However, some mechanical have correlated features...

This paper presents the use of artificial neural networks in diagnosing technical condition drive systems operating under variable conditions. The effects temperature and load variations on values diagnostic parameters were considered. An experiment was conducted a testing rig where introduced corresponding to main gearbox bucket wheel excavator. signals vibration acceleration body, rotational ...