Search results for "PD Measurement"

showing 4 items of 4 documents

Partial discharge detection and localization along medium voltage cables

2017

In the last years different partial discharge (PD) measuring techniques have been developed because PD diagnostic is the most widely tool to evaluate the insulation condition of a power cable. Recently non-conventional methods and sensors have been used in order to reach improved results in PD measurements. The purpose of this work is to perform measurements that allow to study the variation of pulses when they travel along a MV cable and to locate the pulse source through the time arrival difference of the pulses obtained from two sensors installed separately.

010302 applied physicsMaterials sciencebusiness.industryAcousticsElectronic Optical and Magnetic Material01 natural sciencesPulse (physics)PD measurementSettore ING-IND/31 - Elettrotecnica0103 physical sciencesPartial dischargeWirelessPower cablePD localizationPartial DischargeElectrical and Electronic EngineeringbusinessVoltage
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Partial discharges on IGBT modules: Are sinusoidal waveforms sufficient to evaluate behavior?

2014

In recent years, the increasing use of AC-DC converters, especially in the field of renewable energy sources has led to the implementation of new modulation techniques, in particular the ones based on the pulse width modulation. The purpose of the present work is to verify the different behavior that is obtained when the components are subjected to the partial discharge test carried out with a sinusoidal waveform, and when they are subjected to PWM stress-type, similar to the actual signal generated by this type of electronic components. By considering equal rms value of the fundamental sine wave, the comparison has shown different partial discharges patterns.

Engineeringbusiness.industrySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciIGBTSignalPD measurementsRoot mean squareSettore ING-IND/31 - ElettrotecnicaSine waveModulationvisual_artElectronic componentPartial dischargevisual_art.visual_art_mediumElectronic engineeringWaveformPartial DischargebusinessSettore ING-INF/07 - Misure Elettriche E ElettronichePulse-width modulation2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)
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Partial Discharge Detection Using a Spherical Electromagnetic Sensor

2019

The presence of a partial discharge phenomenon in an electrical apparatus is a warning signal that could determine the failure of the insulation system, terminating the service of the apparatus and/or the network. In this paper, an innovative partial discharge (PD) measurement instrument based on an antenna sensor is presented and analyzed. Being non-intrusive is one of the most relevant features of the sensor. The frequency response of the antenna sensor and the features to recognize different PD sources and automatically synchronize them with the supply voltage are described and discussed in details. The results show the performance of the instrument can make a fast and correct diagnosis …

Frequency responseAtomic and Molecular Physics and OpticComputer scienceAcousticspartial discharge (PD)02 engineering and technologylcsh:Chemical technology01 natural sciencesSignalBiochemistryArticlePD measurementsPD measurementAnalytical ChemistryInsulation system0103 physical sciences0202 electrical engineering electronic engineering information engineeringlcsh:TP1-1185Electrical and Electronic EngineeringInstrumentation010302 applied physicswireless sensor020208 electrical & electronic engineeringAtomic and Molecular Physics and OpticsSettore ING-IND/31 - Elettrotecnicaantenna sensorPartial dischargeState (computer science)Antenna (radio)VoltageSensors
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Partial Discharges Diagnostics Along Medium Voltage Cables

2018

In the last years different partial discharge (PD) measuring techniques have been developed because PD diagnostic is the most widely tool to evaluate the insulation condition of a power cable. Recently non-conventional methods and sensors have been used in order to reach improved results in PD measurements. New sensors based on wireless technology were developed in order to simplify PD measurement especially for on-line, on-site diagnosis. The purpose of this work is to perform measurements that allow to study the variation of pulses when they travel along a medium voltage cable and characterize a new smart PD source detector and locator, named Wings sensor. For these purposes, internal PD …

Materials scienceRenewable Energy Sustainability and the Environmentbusiness.industryAcousticsPD MeasurementDetectordiagnosticEnergy Engineering and Power TechnologyComputer Science Applications1707 Computer Vision and Pattern RecognitionRotationSignalIndustrial and Manufacturing Engineeringantenna sensorpartial dischargeSettore ING-IND/31 - ElettrotecnicaComputer Networks and CommunicationIntelligent sensorArtificial IntelligencePartial dischargeWirelessPower cablebusinessInstrumentationVoltage2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)
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