Results 21 to 30 of about 214,445 (299)

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   +1 more source

Current Density Distribution in the Metal Enclosure of GIS in the Presence of Partial Discharges [PDF]

open access: yesSHS Web of Conferences
Reliable operation of GIS is an important guarantee for the safety and stability of the power system. Partial discharge detection is an effective means of detecting GIS faults in the partial discharge. When partial discharge occurs, the partial discharge
Xu Dai, Changyong Yin, Guanhua Li
doaj   +1 more source

Device for online monitoring of insulation faults in high-voltage switchgears

open access: yesInternational Journal of Distributed Sensor Networks, 2021
Partial discharges are the major cause of deterioration in the insulation characteristics of switchgears. Therefore, timely detection of partial discharge in switchgear and potential insulation faults is an urgent problem that needs to be addressed in ...
Jiajia Song, Jinbo Zhang, Xinnan Fan
doaj   +1 more source

Advanced partial discharge testing of 540V aeronautic motor fed by SiC inverter under altitude conditions [PDF]

open access: yes, 2017
The present paper reports non-electrically intrusive partial discharge investigations on an aeronautic motor fed by SiC inverter drive under variable environmental conditions.
Abadie, Cédric   +2 more
core   +1 more source

A Partial Discharge Pulse Extraction and Denoising Technology Based on Random Singular Value Decomposition

open access: yesZhongguo dianli, 2021
Partial discharge signals are prone to missed detection under low signal-to-noise ratios, and the traditional singular value decomposition algorithm requires massive calculations when extracting partial discharge pulses.
Li WANG, Wei ZHANG, Dingnan LUO
doaj   +1 more source

Research on Near-Field Propagation Characteristics of Partial Discharge Electromagnetic Wave Signal in Switchgear

open access: yesEnergies, 2023
In the authors’ previous research, a new method for partial discharge detection in the switchgear based on near-field detection was proposed. The content of this paper is the continuation of the authors’ previous research.
Chunguang Suo   +6 more
doaj   +1 more source

Overview and Partial Discharge Analysis of Power Transformers: A Literature Review

open access: yesIEEE Access, 2021
The high voltage power transformer is the critical element of the power system, which requires continuous monitoring to prevent sudden catastrophic failures and to ensure an uninterrupted power supply.
Md Rashid Hussain   +2 more
doaj   +1 more source

PIFA antenna for partial discharge detection in power transformers [PDF]

open access: yesMetrology and Measurement Systems, 2021
The article presents the process of designing and manufacturing a prototype antenna based on the PIFA (Planar Inverted F Antenna) technology for the detection of UHF signals from partial discharges occurring in the power transformer insulation system ...
Cyprian Szymczak
doaj   +1 more source

Partial Discharge Ultrasound Detection Using the Sagnac Interferometer System

open access: yesSensors, 2018
Partial discharge detection is crucial for electrical cable safety evaluation. The ultrasonic signals frequently generated in the partial discharge process contains important characteristic information.
Yu Wang   +5 more
doaj   +1 more source

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

open access: yesFrontiers 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   +7 more
doaj   +1 more source

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