Partial discharge measurement in the ultra high frequency (UHF) range

Tenbohlen, Stefan; Denissov, D.; Hoek, S.M.; Markalous, Sacha

doi:10.1109/tdei.2008.4712656

Cited by 192 publications

(96 citation statements)

References 7 publications

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“…• Stochastic noise, random in both time and amplitude such as corona or plasma in air that can emit energy up to 500 MHz, though in most cases (sparking and lamp ignition) they only reach 250 MHz [26].…”

Section: Electrical Noisementioning

confidence: 99%

Electromagnetic Burst Measurement System Based on Low Cost UHF Dipole Antenna

et al. 2017

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Non-linear high-power devices produce electromagnetic noise (EMN) sources of great intensity that can disrupt and damage the surrounding electrical equipment and devices. This radiative phenomenon is very common at facilities where pulsed power generators are required, particularly those that are needed to produce dense transient plasma experiments. These conditions are found at the Chilean Nuclear Energy Commission (CCHEN), due to the presence of pulsed power generators that switch large currents (kA-MA) in short times (10-100 ns). In order to characterize and establish conditions to mitigate the effects of the EMN on nearby devices, a measurement system based on an ultra-high frequency (UHF) dipole antenna was developed. We evaluated the system measuring the EMN emanated from a plasma focus device, the PF-400J. Measurements at the place indicated broadband and intense electric fields that can couple to nearby cables and equipment (10-300 MHz bandwidth, up to 350 V/MHz spectral intensity, 100 V coupled voltage). Based on these measurements a compact and simple protection system was designed, built and tested, capable of effectively mitigating the high levels of EMN. The proper EMN impact mitigation indicates the correct operation of the suggested system. The developed system can be of interest to the energy community by facilitating EMN measurement produced by arc discharges.

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Section: Electrical Noisementioning

confidence: 99%

Electromagnetic Burst Measurement System Based on Low Cost UHF Dipole Antenna

et al. 2017

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“…A dipole antenna is used as the receiving radiometer antenna, because an omnidirectional radiation pattern is desirable, coupled through a 4:1 balun to increase the bandwidth. Experimental data suggest that the typical spectra for various radiometric PD types is between 50 and 800 MHz, with the majority below 300 MHz (Albarracín et al, 2016;Hoshino et al, 2001;Jaber et al, 2017;Robles et al, 2012Robles et al, , 2013Tenbohlen et al, 2008;Xiao et al, 2009); therefore, a sensor bandwidth in this region was selected. The receiving antenna is connected to the RF front end, which contains a band-pass filter for the 30-320 MHz band, a band-stop filter for the 75-255 MHz band, an ADL5530 low-noise amplifier, and an LTC5507 RF envelope detector.…”

Section: Sensor Nodesmentioning

confidence: 99%

Wireless sensor network for radiometric detection and assessment of partial discharge in HV equipment

Upton

Saeed

Khan

et al. 2017

2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)

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This version is available at https://strathprints.strath.ac.uk/63466/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Abstract Monitoring of partial discharge (PD) activity within high-voltage electrical environments is increasingly used for the assessment of insulation condition. Traditional measurement techniques employ technologies that either require off-line installation or have high power consumption and are hence costly. A wireless sensor network is proposed that utilizes only received signal strength to locate areas of PD activity within a high-voltage electricity substation. The network comprises low-power and low-cost radiometric sensor nodes which receive the radiation propagated from a source of PD. Results are reported from several empirical tests performed within a large indoor environment and a substation environment using a network of nine sensor nodes. A portable PD source emulator was placed at multiple locations within the network. Signal strength measured by the nodes is reported via WirelessHART to a data collection hub where it is processed using a location algorithm. The results obtained place the measured location within 2 m of the actual source location.

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“…The inductive sensor consists of a two-loop winding coil. The pulses emitted by PD are pre-amplified, filtered, and processed with a computer-based oscilloscope [1]. The results of PD tests may be impaired if the readings are taken when the signal noise ratio (SNR) is poor, that is when the measurement frequency is less than 500 kHz.…”

Section: Uhf Pd Detection In the Power Cablementioning

confidence: 99%

“…Techniques for detecting PD depend on what different physical properties which accompany the occurrence of PD, are measured. Known physical properties which have been used in the measurement include electromagnetic emission (in the form of radio wave, light, and heat), acoustic emission (in the audible and ultra-sonic ranges), ozone formation, and the release of nitrous oxide gases [1]. The measurement level indicates the quantity and magnitude of partial discharge.…”

Section: Introductionmentioning

confidence: 99%

Review on partial discharge detection techniques related to high voltage power equipment using different sensors

et al. 2014

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When operating an equipment or a power system at the high voltage, problems associated with partial discharge (PD) can be tracked down to electromagnetic emission, acoustic emission or chemical reactions such as the formation of ozone and nitrous oxide gases. The high voltage equipment and high voltage installation owners have come to terms with the need for conditions monitoring the process of PD in the equipments such as power transformers, gas insulated substations (GIS), and cable installations. This paper reviews the available PD detection methods (involving high voltage equipment) such as electrical detection, chemical detection, acoustic detection, and optical detection. Advantages and disadvantages of each method have been explored and compared. The review suggests that optical detection techniques provide many advantages in the consideration of accuracy and suitability for the applications when compared to other techniques.

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Partial discharge measurement in the ultra high frequency (UHF) range

Cited by 192 publications

References 7 publications

Electromagnetic Burst Measurement System Based on Low Cost UHF Dipole Antenna

Electromagnetic Burst Measurement System Based on Low Cost UHF Dipole Antenna

Wireless sensor network for radiometric detection and assessment of partial discharge in HV equipment

Review on partial discharge detection techniques related to high voltage power equipment using different sensors

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