|
of applied signal processing; Wavelet, PCA, t-SNE, DBSCAN and Mathematical Morphology (commonly used in image processing) for classification and localisation of multiple partial discharge sources within the HV transformer winding. In general, these signal processing techniques can be used to classify and locate any kind of things (signals/images) that have different characteristics/parameters. Within high voltage engineering, this includes condition monitoring of high voltage cables and transformers, PD measurement, HV insulation/dielectric materials, transformer rating analysis (considering climate change i.e. solar radiation (ASHRAE model), ambient temperature, wind speed and ect), space charge measurement and simulation, lightning simulation and any related applied signal processing. A Technical Evaluator (freelance) for TNB Labs; carry out technical evaluations and assessments, which include conducting documentation checks and physical verification based on TNB specifications, most of them are MV and HV equipment (for Sijil Guna Pakai (SGP)). Commercial testing; worked with the Tony Davies High Voltage Laboratories which included partial discharge testing, wind farm cable thermal performance measurement, spark testing, AC, DC, and impulse testing, cable bending stiffness measurement, current cycle testing, salt fog testing, and Tan Delta measurement. |