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Partial Discharge (PD) is characterized by high frequency current pulses that occur in the interior of high voltage (HV) apparatus. It involves gas ionization processes within insulators and can therefore indicate insulation defects. Low levels of PD are not necessarily of urgent concern in the context of safe operation of plant but they may gradually increase with the time, until complete discharge...
The estimation and monitoring of partial discharge (PD) in high voltage electrical systems (HV) allow the identification and forecast problems associated with transformers and insulators. For this purpose, this paper presents an estimation procedure of partial discharges using data fusion techniques based on fuzzy OWA operators (Ordered Weighted Average) and its uncertainties. It is presented some...
A purely electronic partial discharge emulator for use in a location estimation algorithm for online partial discharge detection is proposed as a low-cost approach to real-time condition monitoring, asset management and operation optimization in future smart grid. Some early progress in the development of subsystems (specifically the radiometer antenna and PD emulator) for a proof-of-principle prototype...
A low-cost, free-standing, radiometric, partial discharge wireless sensor network (PD WSN) is described for application to real-time condition monitoring, asset management and operations optimization in the future smart grid. The proposed PD WSN uses a novel approach to PD location which obviates the need for synchronization between sensors thereby improving scalability. Progress in the development...
Partial Discharges (PDs) are responsible for unexpected failures in power system equipment, so their measurement is a fundamental tool for electrical equipment maintenance. In order to characterize PDs activity, some statistical magnitudes are necessary. For this purpose, PDs acquisition and processing is an important tool for critical decisions related to power systems. In this paper, the main difficulties...
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