Results 11 to 20 of about 10,554 (149)

A Partial Discharge Detection Approach in Distribution Cabinets Using a Mach–Zehnder Interferometer [PDF]

Sensors
Distribution cabinets are of paramount importance in power supply systems. Internal partial discharge may result in power interruption or even the outbreak of fire.
Junliang Wang, Ying Zhang, Xiang Gu
doaj   +2 more sources

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

IEEE 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, Shady S. Refaat, Haitham Abu-Rub   +2 more
doaj   +1 more source

In-depth exploration of partial discharge modelling methods within insulations

Cleaner Engineering and Technology, 2022
Partial discharge (PD) activities are the essential contributor of insulation failure, which constitute more than 60% for damaging high voltage equipment.
Hadi Nabipour Afrouzi, Ateeb Hassan, Daphne Tay Ye Chee, Kamyar Mehranzamir, Zulkurnain Abdul Malek, Saeed Vahabi Mashak, Jubaer Ahmed   +6 more
doaj   +1 more source

Investigation on the partial discharge characteristics of eco‐friendly nanofluid insulation of corn oil nanofluid

IET Nanodielectrics, 2021
The suitability of corn oil nanofluid as an insulation material is studied herein by analysing the partial discharge characteristics. Experiments are conducted on nano‐silica modified corn oil at 0.01, 0.05, and 0.1 wt.% mass fractions.
Shantha Kumar M, Kasi Viswanathan P, Shree Kumar H   +2 more
doaj   +1 more source

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

Applied 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

Simulation Analysis on Partial Discharge Signals Produced by Multiple Insulation Defects in GIS [PDF]

E3S Web of Conferences, 2020
In this paper, the simulation analysis on partial discharge (PD) signals produced by multiple insulation defects in gas insulated substation (GIS) has been researched by the simulation software of electromagnetic field (XFDTD).
Yun Yuxin, Xu Guangke, Zhang Weiwei, Li Xing, Chen Lingying   +4 more
doaj   +1 more source

Evaluation of a calibration technique in measuring partial discharges inside mineral oils with a high‐frequency current transformer (HFCT) sensor: A case study

IET Generation, Transmission & Distribution, 2023
Partial discharge is one of the main reasons for insulation degradation in high‐voltage apparatuses. Partial discharge is an ineluctable phenomenon that happens when a high electrical field is adjacent to an insulator. High‐frequency current transformers
Hamidreza Besharatifard, Saeed Hasanzadeh, S M Muyeen, Innocent Kamwa   +3 more
doaj   +1 more source

Partial Discharge Analysis and Simulation Using the Consecutive Pulses Correlation Method

Energies, 2021
The behaviour of partial discharge as consequences of an alternating current (AC) is already well defined. AC partial discharges have completely different behaviour, background physics and parameters than partial discharges (PD) under direct current (DC)
Ondřej Kozák, Josef Pihera
doaj   +1 more source

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