Results 11 to 20 of about 80,385 (313)

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

Journal 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, Seungyong Park, Jisu Lee, Kyung-Young Jung   +3 more
doaj   +1 more source

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

Energies, 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, Tae Yoon Hong, Young Woo Youn, Jong Ho Sun, Se-Hee Lee   +4 more
doaj   +1 more source

Influence of Insulating Material Properties on Partial Discharges at DC Voltage

Energies, 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   +1 more source

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

IEEE 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, Paolo Giangrande, Michael Galea   +2 more
doaj   +1 more source

Partial discharges characteristics study in XLPE cable insulation with multiple defects [PDF]

Омский научный вестник, 2021
The paper simulates the electric field intensity picture in the cable with one and several defects. Modeling has shown that the presence of several closely spaced defects does not lead to an increase in the electric field intensity in comparison with
I. V. Komarov, D. A. Polyakov, K. I. Nikitin   +2 more
doaj   +1 more source

The Practical Application of Bio-Inspired PMA for the Detection of Partial Discharges in High Voltage Equipment

Sensors, 2023
In this paper, the practical application of a bio-inspired antenna for partial discharge (PD) detection in high voltage equipment was evaluated in order to validate the efficiency of using this technology for PD monitoring purposes.
Josiel Cruz, Alexandre Serres, Raimundo Freire, Edson Costa, George Xavier, Adriano Oliveira, Vladimir Souza, Pavlos Lazaridis   +7 more
doaj   +1 more source

Partial Discharge Data Matching Method for GIS Case-Based Reasoning

Energies, 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, Yingbing Teng, Zhaoqi Zhang, Zhongmin Yu, Gehao Sheng, Xiuchen Jiang   +5 more
doaj   +1 more source

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

Measurement 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

Multiple detections of insulation defects partial discharge in gas-insulated equipment

Frontiers in Energy Research, 2022
Gas-insulated equipment is an important part of the power system owing to its advantages of small footprint, large transmission capacity, and high reliability.
Fanjun Kong, Ke Zhao, Jingtan Ma, Tianxin Zhuang, Hongtao Li, Shan Gao, Jianjun Liu, Chaohai Zhang   +7 more
doaj   +1 more source

An optimized method of partial discharge data retrieval technique for phase resolved pattern [PDF]

, 2016
The measurement of phase resolved partial discharge requires a gigantic memory capacity to store all the waves of the PD test results. This limitation eventually hinders the testing.
Abral, H., Ahmad, M. H., Arief, S., Aulia, Aulia, Hazmi, A., Waldi, E. P.   +5 more
core   +3 more sources