Partial Discharge
Theory of partial discharge and arc formation
... electrical discharge or corona is raised ...or partial discharge, here the voltage capable of causing disruptive discharge at sea level is greatly increased at altitudes of 18km ( ...and ...
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Laboratory and field partial discharge measurement in HVDC power cables
... avoid „blindness‟ with regard to the condition of these critical cables through an ability to locate incipient insulation faults, which are in most cases preceded by partial discharge (PD) activity in the ...
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Radio location of partial discharge sources : a support vector regression approach
... to partial discharge (PD). PD occurs when an electrical discharge partially bridges the dielectric between conductors; it tends to be highly focused where electric field strength is greater than the ...
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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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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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Identifying harmonic attributes from online partial discharge data
... Abstract—Partial discharge (PD) monitoring is a key method of tracking fault progression and degradation of insulation ...the partial discharge pattern, questioning the conclusions about ...
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An evaluation of total variation signal denoising methods for partial discharge signals
... Partial discharge (PD) monitoring in high voltage power plants is a useful tool to detect the presence of insulation degradation in the electrical systems ...
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Partial Discharge Patterns in Conducting and Non-Conducting Electrical Trees
... the partial discharges occur within the main branches of the tree structure, or, electrically conducting, in which the partial discharge occur only at the growing tree ...
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Localisation of partial discharge sources using radio fingerprinting technique
... Abstract— Partial discharge (PD) is a well-known indicator of the failure of insulators in electrical plant. Operators are pushing toward lower operating cost and higher reliability and this stimulates a ...
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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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Partial discharge simulation under various applied voltage waveforms
... resolved partial discharge (PRPD) patterns are used to observe PD patterns under different parameters of the simulation and conditions of the applied ...
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Research and Application of Sensor Detection Technology for UHF Partial Discharge Tester
... UHF partial discharge tester can detect the hidden insulation problems and locate the defects as early as ...UHF partial discharge tester, and the accuracy of test data cannot be ...
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Partial Discharge within a Spherical Cavity in Solid Dielectric Material
... The discharge in void is belonging to such type of partial discharge and necessary for PD measurement system ...of discharge which is surface discharge, cavity discharge, corona ...
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Wireless sensor network for radiometric detection and assessment of partial discharge in HV equipment
... The sensor node, shown in Figure 2, consists of four subsystems: an RF front end, a signal conditioning unit, a microcontroller, and a WirelessHART unit. A dipole antenna is used as the receiving radiometer antenna, ...
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Method to discard partial discharge pulses from neighboring high voltage equipment
... On-line partial discharge (PD) diagnostics data are corrupted by various noise sources and this makes it more challenging to extract the PD signal contained in the raw ...double-ended partial ...
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The influence of antenna positioning errors on the radio-frequency localization of partial discharge sources
... stressed, partial discharge (PD) pulses, with very fast rise-times and short-time durations, may ...the discharge is the emission of electromagnetic ...
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Classification of partial discharge EMI conditions using permutation entropy-based features
... of partial discharge patterns by image- oriented feature extraction and selection technique,” IEEE Transactions on Dielectrics and Electrical Insulation, ...of partial discharge patterns using ...
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An UWB Printed Antenna for Partial Discharge UHF Detection in High Voltage Switchgears
... High voltage switchgears are widely used as important fundamental equipment in electric power systems, which are directly relative to the power reliability and quality [1]. Partial discharge (PD) as a ...
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Self Organizing Map Improved for Classification of Partial Discharge using Desirability Function
... In the measurement equipment is recorded the number of the detected PD with a certain combination of phase and charge (see Fig. 3). This graph shows the behavior of partial discharge in a void under high ...
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Partial discharge behaviour of biaxially orientated PET films : the effect of crystalline morphology
... Partial discharge breakdown experiments were conducted using the IEC (b) electrode system according to IEC 60343. The electrode system consists of rod and plane stainless- steel electrodes where the rod ...
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