Results 31 to 40 of about 161,473 (191)

Denoising Analysis of Partial Discharge Acoustic Signal Based on SVMD-PCA

Journal of Applied Science and Engineering, 2023
Partial discharge (PD) acoustic signal detection is one of the effective means to assess the insulation status of power transformers. In actual monitoring, white noise is likely to cause strong interference to the partial discharge acoustic signal of the
Panpan Cao, Jianqiao Ma, Guangze Yang, Sheng Li   +3 more
doaj   +1 more source

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

IEEE 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. This paper aims to develop further knowledge in PD signal propagation in power cables and attenuation by the PD monitoring system devices to address ...
Sheng, Bojie, Zhou, Chengke, Hepburn, D., Dong, Xiang, Peers, G., Zhou, Wenjun, Tang, Zeyang   +6 more
openaire   +3 more sources

Partial Discharge Inception and Breakdown Voltage Analysis in PCB-Based Electrode Structures

Applied Sciences
This paper investigates partial discharge (PD) characteristics and breakdown behavior in five electrode configurations fabricated from fiberglass circuit boards, including parallel electrode (PE), triangular electrode (TE), right-angled electrode (RE ...
Tzu-Ching Tai, Shiao-Yu Andrew Bao, Bharath Kumar Boyanapalli, Cheng-Chien Kuo, Chien-Kuo Chang   +4 more
doaj   +1 more source

Blind equalization of partial discharge channels [PDF]

Zbornik Radova: Elektrotehnički Institut "Nikola Tesla"
In the case of partial discharge signals, obtained during "online" monitoring or "off-line" tests of the generator, there is often interference between the direct and reflected signals or disturbances during propagation through the medium, i.e.
Žigić Aleksandar, Kartalović Nenad, Radoman Uroš, Kovačević Uroš   +3 more
doaj   +1 more source

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

International 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

Mine cable partial discharge denoising method based on multivariate variational mode decomposition and improved wavelet threshold

Meitan xuebao
The insulation state of the mine cable plays an important role in the stable operation of the mine power supply system. Partial discharge on-line monitoring is an important means of cable insulation state monitoring.
Jiyuan CAO, Yanwen WANG, Peng CHEN, Xuan ZHOU, Weixiong ZHU, Yihe ZHANG, Le WANG   +6 more
doaj   +1 more source

Partial discharge detection and identification based on chipless RFID system [PDF]

, 2023
Zhenning Yang
openalex   +1 more source

Partial discharge characteristics of IGBT module in mine frequency converter under step pulse

矿业科学学报, 2020
The partial discharge occurs in IGBT device module of mine equipment.which leads to the breakdown of insulation and burns the device.In this paper the causes and characteristics of pd in IGBT module were studied.Therefore, based on the research of ...
Wang Yanwen, Feng Chen, Chen Peng, Gao Zhixuan, Sun Yanying, Wang Le   +5 more
doaj   +1 more source

Research on numerical simulation for partial discharge of epoxy interface excited by high‐frequency sinusoidal voltage

High Voltage, 2022
High‐frequency sinusoidal voltage excitation is proposed as a feasible method to solve the difficulty of partial discharge detection at the epoxy interface. In order to study the development process of partial discharge under high‐frequency stress, a two‐
Jian Wang, Rui Guo, An Ping, Tao Liu, Shuai Han, Qingmin Li   +5 more
doaj   +1 more source

FEA-Based Simulation of Accelerated Ageing in a Power Cable Due to Sustained Partial Discharge Activities in a Spherical Cavity [PDF]

, 2023
Umar Musa, Abdullahi A. Mati, Abdullahi Abubakar Mas’ud, Gaddafi Sani Shehu, Johnatan M. Rodríguez‐Serna, Saud Al-Shammari, Mohamad Nur Khairul Hafizi Rohani, Firdaus Muhammad‐Sukki   +7 more
openalex   +1 more source