Results 11 to 20 of about 608,168 (303)

Double-End Location Technology of Partial Discharge in Cables Based on Frequency-Domain Reflectometry. [PDF]

open access: yesSensors (Basel)
To realize the region determination and accurate location of cable partial discharge, this paper proposes a cable partial discharge double-end location technique based on frequency-domain reflectometry.
Miao W   +9 more
europepmc   +2 more sources

Partial discharge pulse propagation in power cable and partial discharge monitoring system [PDF]

open access: yesIEEE Transactions on Dielectrics and Electrical Insulation, 2014
Partial discharge (PD) based condition monitoring has been widely applied to power cables. However, difficulties in interpretation of measurement results (location and criticality) remain to be tackled.
Dong, Xiang   +6 more
core   +5 more sources

Classification of Superimposed Partial Discharge Patterns [PDF]

open access: yesEnergies, 2021
Phase resolved partial discharge patterns (PRPD) are routinely used to assess the condition of power transformers. In the past, classification systems have been developed in order to automate the fault identification task. Most of those systems work with the assumption that only one source is active.
Benjamin Adam, Stefan Tenbohlen
openaire   +5 more sources

Domain-Adaptive Transformer Partial Discharge Recognition Method Combining AlexNet-KAN with DANN. [PDF]

open access: yesSensors (Basel)
The changes in operating conditions of a power transformer can cause a shift in the distribution of partial discharge data, leading to the gradual generation of unlabeled new data, which results in the degradation of the original partial discharge ...
Niu J, Zhu Y.
europepmc   +2 more sources

Localization for Dual Partial Discharge Sources in Transformer Oil Using Pressure-Balanced Fiber-Optic Ultrasonic Sensor Array. [PDF]

open access: yesSensors (Basel)
The power transformer is one of the most crucial pieces of high-voltage equipment in the power system, and its stable operation is crucial to the reliability of power transmission.
Liu F, Shi Y, Zhang S, Wang W.
europepmc   +2 more sources

Partial discharge Source Calibration of Radiated Partial Discharge Signals

open access: yes2022 2nd International Conference on Advance Computing and Innovative Technologies in Engineering (ICACITE), 2022
Based on the IEC 60270 guideline, a galvanic quantification along with free-space radiometry (FSR) method are used to measure partial discharge (PD) simultaneously. The PD source is a floating-electrode emulator type that was custom built. Sources are powered by AC or DC, power supplies. A biconical antenna captures the emitted a signal.
Jaber, Adel   +2 more
openaire   +1 more source

Partial Discharge Inception Modelling of Insulating Materials and Systems: Contribution of Electrodes to Electric Field Profile Calculation

open access: yesApplied Sciences, 2023
Partial discharge inception modeling is a powerful tool for material investigation and insulation system design in order to achieve the objective of PD-free operation of insulation systems.
Giovanni Gardan, Gian Carlo Montanari
doaj   +1 more source

Research and application of intermittent partial discharge characteristics and easy-warning system for electric equipment

open access: yesEnergy Reports, 2022
Intermittent partial discharge has become an essential threat to the safety and stability of high voltage electrical equipment. In order to reduce the sudden insulation breakdown failure due to the intermittent and latent partial discharge of the ...
Bo Niu, Dr   +5 more
doaj   +1 more source

Partial discharge detection and identification at low air pressure in noisy environment

open access: yesHigh Voltage, 2021
Increasing demand for electric power in more electric aircraft requires a higher operating voltage for the power system that leads to higher electric stress on the insulation system.
Ali Nasr Esfahani   +2 more
doaj   +1 more source

Modeling partial discharge phenomena

open access: yesIEEE Electrical Insulation Magazine, 2020
Measurements of partial discharge (PD) activity are a commonly used technique to diagnose the health of insulation material within high voltage plant. The definition of PD is relatively broad, it is generally defined as a localized or confined discharge within an insulating medium [1]. Due to the high electric breakdown strength of insulation materials,
Callender, George, Lewin, Paul
openaire   +2 more sources

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