Results 21 to 30 of about 42,017 (255)

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

Using a Scintillation Detector to Detect Partial Discharges [PDF]

open access: yesSensors, 2019
This article presents the possibility of using a scintillation detector to detect partial discharges (PD) and presents the results of multi-variant studies of high-energy ionizing generated by PD in air. Based on the achieved results, it was stated that despite a high sensitivity of the applied detector, the accompanying electromagnetic radiation from ...
Łukasz Nagi   +3 more
openaire   +2 more sources

Research on the Optical Properties of Transformers Partial Discharge Based on Different Discharge Models

open access: yesMATEC Web of Conferences, 2016
In this paper, the different types of discharge in transformer were simulated based on the real transformer fault model. The optical partial discharge detection system was established based on optical sensors which were capturing partial discharge ...
Wei Bengang   +3 more
doaj   +1 more source

Antenna Parametrization for the Detection of Partial Discharges [PDF]

open access: yesIEEE Transactions on Instrumentation and Measurement, 2013
Partial discharge (PD) detection is a widely extended technique for electrical insulation diagnosis. Ultrahigh-frequency detection techniques appear as a feasible alternative to traditional methods owing to their inherent advantages such as the capability to detect PDs online and to locate the piece of equipment with insulation problems in substations ...
Robles Muñoz, Guillermo   +5 more
openaire   +2 more sources

Field Applications of Ultra High Frequency Techniques for Defect Detection in GIS

open access: yesSensors, 2018
The reliable and stable operation of power apparatus is important for the development of GIS. It is important to utilize condition monitoring technologies and anticipate possible failures in advance.
Jun Xiong   +4 more
doaj   +1 more source

Suppression Method of Partial Discharge Interferences Based on Singular Value Decomposition and Improved Empirical Mode Decomposition

open access: yesEnergies, 2021
Partial discharge detection is an important means of insulation diagnosis of electrical equipment. To effectively suppress the periodic narrowband and white noise interferences in the process of partial discharge detection, a partial discharge ...
Linao Li, Xinlao Wei
doaj   +1 more source

Distribution Characteristics of Partial Discharge Radio Frequency Signal in Transformer Tank and Bushing

open access: yesZhongguo dianli, 2023
The external partial discharge (PD) radio frequency (RF) detection method is suitable for equipment in operation, and has become one of the important means to perceive the insulation defects of transformer and bushing.
Hui HUANG   +4 more
doaj   +1 more source

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