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Given the increasing asset age of the medium voltage distribution network, more failures are being observed. The ability to understand the source or mechanism of a particular defect plays an important role in facilitating a more effective diagnostic replacement strategy. This paper investigates the cause of failure in a medium-voltage EPR-insulated underground cable. The cable was taken out of service...
Industrial machinery/assets are usually operated under different operating conditions or modes. Local empirical models can be built within specified operating condition boundaries to represent system dynamics more accurately than a global model, which is generally applicable over the entire operating regime. However, when the change of system operating regime occurs, none of local models can capture...
Engine condition monitoring and diagnostics are critical for safe, efficient and profitable aircraft operation. Snapshots of sensor measurements are typically used for engine health monitoring. Deviation of those measurements from a reference condition is a key feature for engine fault detection. Measurement noise and sensor failure, however, often contaminate those signals and affect performance...
In this paper, we combine the mature technology of Web with the embedded and fully utilize the advantages of both. Applied the embedded Web technology in the field of equipment condition monitoring, the equipment remote monitoring system is designed based on embedded Web. Firstly, the function and structure of the system are designed. Based on ARM9 technology, the hardware part of system is designed...
Anomaly detection is a critical capability enabling condition-based maintenance (CBM) in complex real-world industrial systems. It involves monitoring changes to system state to detect ldquoanomalousrdquo behavior. Timely and reliable detection of anomalies that indicate faulty conditions can help in early fault diagnostics. This will allow for timely maintenance actions to be taken before the fault...
Prediction of equipment remaining useful life (RUL) is of considerable economic benefit to industry, by permitting the avoidance of unscheduled downtime and costly secondary damage. Detection of change is an important first step in building a prognostic system: when a detectable fault occurs, it will cause changes in one or more sensed parameters of the system. Once a change has been detected, localizing...
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