Results 11 to 20 of about 2,966,124 (288)

Influence of Insulating Material Properties on Partial Discharges at DC Voltage

open access: yesEnergies, 2020
Understanding a partial discharge mechanism at direct current (DC) is an actual research topic that requires both modeling, simulations and measurements.
Marek Florkowski
doaj   +3 more sources

Interpretation of wavelet analysis and its application in partial discharge detection. [PDF]

open access: yes, 2002
The objective of the paper is to discuss a tool which is proving extremely efficient in partial discharge measurement studies. Though the technique itself is not new, its application to partial discharge studies is.
Zhou, C., Kemp, I. J., Ma, X.
core   +4 more sources

Remote controlled partial discharge acquisition unit [PDF]

open access: yes, 2003
Online partial discharge (PD) analysis for underground high voltage cables has major advantages over the offline techniques. Online techniques usually involve PD data acquisition, storage and post-processing of the data.
Pearson, J.S.   +3 more
core   +3 more sources

A frequency-based RF partial discharge detector for low-power wireless sensing [PDF]

open access: yes, 2010
Partial discharge (PD) monitoring has been the subject of significant research in recent years, which has given rise to a range of well-established PD detection and measurement techniques, such as acoustic and RF, on which condition monitoring systems ...
Baker, P.C.   +2 more
core   +4 more sources

Study on the Correlation between Partial Discharge Energy and SF6 Decomposition Gas Generation

open access: yesEnergies, 2020
In this paper, the amount of SF6 decomposition gases due to the partial discharge (PD) was studied in the SF6 gas-insulated transformer. The long-term PD degradation experiment was performed while controlling the discharge magnitude using the surface ...
Yong Sung Cho   +4 more
doaj   +1 more source

UHF-Printed Monopole Filtenna for Partial Discharge Detection with LTE Signal Suppression [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
External partial discharge (PD) sensors for the ultra-high frequency (UHF) method are widely used to detect the PD signals in high-voltage power equipment for ease of installation and maintenance. However, conventional external PD sensors detect not only
Junmo Choi   +3 more
doaj   +1 more source

Characterization of PDIV, PDEV, and RPDIV in Insulated Wires Under Unipolar Repetitive Square Wave Excitations for Inverter-Fed Motors

open access: yesIEEE Access, 2023
The behaviour of partial discharge inception voltage (PDIV), partial discharge extinction voltage (PDEV) and repetitive partial discharge inception voltage (RPDIV) as a function of exposure/poling time under unipolar repetitive square wave excitations at
Hadi Naderiallaf   +2 more
doaj   +1 more source

Partial Discharge Data Matching Method for GIS Case-Based Reasoning

open access: yesEnergies, 2019
With the accumulation of partial discharge (PD) detection data from substation, case-based reasoning (CBR), which computes the match degree between detected PD data and historical case data provides new ideas for the interpretation and evaluation of ...
Jiejie Dai   +5 more
doaj   +1 more source

Time-Frequency Analysis of Partial Discharge Current Pulses in Different Gas Environment under Lightning Impulse

open access: yesMeasurement Science Review, 2020
This paper deals with a time-frequency analysis of the measured partial discharge (PD) currents in different insulation gases. These gas environments consist of a pure SF6 (sulphur-hexafluoride) and sulphur-hexafluoride and nitrogen (1 % SF6 + 99 % N2 ...
Arikan Kemal, Önal Emel, Şeker Serhat
doaj   +1 more source

Identifying harmonic attributes from online partial discharge data [PDF]

open access: yes, 2011
Partial discharge (PD) monitoring is a key method of tracking fault progression and degradation of insulation systems. Recent research discovered that the harmonic regime experienced by the plant also affects the PD pattern, questioning the conclusions ...
Rowland, S.M.   +4 more
core   +4 more sources

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