partial discharge activity
Intelligent diagnosis of defects responsible for partial discharge activity detected in power transformers
... At present, the explainability of the system is restricted to providing an explanation of which agents contribute to the overall diagnosis and providing some indication of the confidence and reliability of each ...
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Simulation Internal Partial Discharge Activity within Void as Function Frequency Using: COMSL+MATLAB LIVELINK
... dynamic partial discharge is that the parameters which may influence on PD activity under diverse conditions can be readily evaluated, for this reason a lot of authors modelling partial ...
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Interpretation of partial discharge activity in the presence of harmonics
... It may be possible to improve THD and harmonic content identification accuracies by classifying a set of patterns captured chronologically and comparing the results. This comparison would involve a second level of ...
5
Partial Discharge Investigation of Insulators using Simulation
... of partial discharge ...to partial discharge with extreme electrical stress MATLAB a restrictions programming language created by math ...understand partial discharge ...
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Partial discharge on line monitoring for HV cable systems using electro optic modulators
... tor to modulate the intensity of the transmitted laser light approximately propor- tional to the voltage applied across the modulator. The laser light is transmitted along an optical fibre and measured remotely by a ...
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Partial Discharge Patterns in Conducting and Non-Conducting Electrical Trees
... of partial discharges (PD) occurring within the tree ...PD activity and the way PD patterns evolve with material ...modelling partial discharges in electrical trees and the model was successful in ...
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Localisation of partial discharge sources using radio fingerprinting technique
... to partial discharges (PD), which increase in severity as the deterioration progresses [3] [4] and this in turn further degrades the quality of the insulation as part of a vicious cycle of ...
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Partial Discharge within a Spherical Cavity in Solid Dielectric Material
... is partial discharge (PD). PD is a discharge that does not bridge the electrodes of an insulation system under high-voltage stress ...of partial discharge increase, which leads to the ...
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Transfer function characterization for HFCTs used in partial discharge detection
... High frequency current transformers (HFCTs) are widely employed to detect partial discharge (PD) induced currents in high voltage equipment. This paper describes measurements of the wideband transfer ...
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Laboratory and field partial discharge measurement in HVDC power cables
... Analysis of AC PD activity is normally based on the PD magnitude and phase (i.e., phase-resolved PD patterns). With DC, the basic PD parameters from testing are the PD magnitude and the pulse occurrence time of PD ...
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Identifying harmonic attributes from online partial discharge data
... The testing facility used for PD capture was previously described in [22], and is summarized here. The raw PD data was collected at a sampling rate of 5M sps over periodic 80ms windows of continuous capture. The PD ...
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Partial discharge simulation under various applied voltage waveforms
... decreases. This is because the magnitude of the electric field within the void decreases faster with time, which can be seen in the figure of the electric field plot as a function of time. Thus, the magnitude of the ...
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Partial discharge detection and localization : using software defined radio
... for Partial Discharge Localization in High-voltage System using Received Signal Strength’, Sensors, 18(11), 4000, ...“Partial discharge location using unsynchronized radiometer network for ...
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Analysis of partial discharge features as prognostic indicators of electrical treeing
... The detail of the experimental plan can be found in [26] and is summarized here. The first stage is to initiate electrical treeing under the influence of 50 Hz at 18.0 kV peak within 30 minutes. After that, the composite ...
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Detection Of Partial Discharges Occurring In Hvdc Environment
... by partial discharges due to particle movement in the transformer oil, under the ac and dc voltages is shown in Figure ...for partial discharge detection must have broadband response, since the ...
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Partial Discharge Pattern Recognition Based on Synchrosqueezing Wavelet Transform and Multi Scale Characteristic Parameters
... gap discharge and creeping discharge UHF PD signal energy is concentrated in the more than 400 MHZ band, and the needle plate discharge and suspended discharge UHF PD signal energy is ...
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Assessing Partial Discharge on Composite Insulators Under Desert Pollution Conditions
... Placing the sand grains on the insulator surface causes the electric field in the air surrounding the surface to be highly non-uniform, which may lead to discharge in the air. The extent of this possibility with ...
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Classification of Partial Discharge Measured under Different Levels of Noise Contamination
... All measurements were performed at 9 kV, which is slightly less than the 11 kV rated volt- age of the cable. This is because operating at higher applied voltage will significantly increase the likelihood of insulation ...
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Research and Design of Cable Partial Discharge Online Monitoring Technology Based on GPS Clock Wireless Synchronization
... in partial discharge ...of partial discharge signal sampling require at least one circle, so the capacity of collected data will be more than 2M bytes based on 100MSPS sample ...
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Development of an integrated low-power RF partial discharge detector
... This paper has presented the results of validating an integrated low-power partial discharge detector for use within a condition monitoring sensor network. The system has used a multi-agent system approach ...
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