Results 1 to 10 of about 10,554 (149)

Partial Discharge Analysis in High-Frequency Transformer Based on High-Frequency Current Transducer

Energies, 2018
High-frequency transformers are the core components of power electronic transformers (PET), whose insulation is deeply threatened by high voltage (HV) and high frequency (HF). The partial discharge (PD) test is an effective method to assess an electrical
Jun Jiang, Mingxin Zhao, Chaohai Zhang, Min Chen, Haojun Liu, Ricardo Albarracín   +5 more
doaj   +1 more source

Influence of Temperature on Initiation Mechanism of Partial Discharge at the Interface Defects of Cable Accessories

Zhongguo dianli, 2021
Temperature has an important influence on the partial discharge (PD) development, but the effect of temperature on the PD initiation mechanism is still not fully understood.
Weiwei LI, Ke ZHU, Yuanshi DENG, Zikang WANG, Yonglu HUANG, Kai ZHOU   +5 more
doaj   +1 more source

Partial Discharge Pattern Recognition of Transformers Based on the Gray-Level Co-Occurrence Matrix of Optimal Parameters

IEEE Access, 2021
The partial discharge (PD) is the most common fault of transformers, which is the main factor affecting the stable operation of transformers. Therefore, the PD should be monitored and identified timely to improve the reliability of the transformers.
Shengya Sun, Yuanyuan Sun, Gongde Xu, Lina Zhang, Yiru Hu, Ping Liu   +5 more
doaj   +1 more source

Effects of shorter phase-resolved partial discharge duration on PD classification accuracy

International Journal of Power Electronics and Drive Systems (IJPEDS), 2020
<span>Partial discharge (PD) pattern recognition is useful to diagnose insulation condition. PD measurement data is commonly represented in phase-resolved partial discharge (PRPD) format. PRPD is useful as it provides a visible pattern for different PD source and various features can be extracted for PD pattern recognition.
Xin, Chong Wan, Raymond, Wong Jee Keen, Illias, Hazlee Azil, Kin, Lai Weng, Haur, Yiauw Kah   +4 more
openaire   +3 more sources

Intelligent partial discharge sensing system for power grid equipment based on Internet of things

Diance yu yibiao
Aiming at the problem that the traditional manual inspection method and wired communication method are difficult to meet the demand for partial discharge (PD) detection of large-scale power equipment, this paper designs an intelligent partial discharge ...
FANG Zheng
doaj   +1 more source

Effect of SF6 pressure on the sensitivity of partial discharge detection of typical defects in GIS

电力工程技术, 2023
The gas pressure of gas insulated switchgear (GIS) is the key factor affecting the sensitivity of partial discharge (PD) detection. In this paper, four defect models, tip, suspension, void, surface, are constructed on the PD experimental platform.
KONG Fanjun, MA Jingtan, CHEN Minhao, ZHANG Chaohai   +3 more
doaj   +1 more source

Partial discharge. Part XXIV: The analysis of PD in HVDC equipment

IEEE Electrical Insulation Magazine, 1997
High voltage dc is required in a wide range of consumer, commercial, and military applications. Presently available PD analysis for dc systems can extend far beyond the old-fashioned "not more than 'n' PD pulses per minute over a given magnitude".
Morshuis, P. (author), Jeroense, M. (author), Beyer, J. (author)   +2 more
openaire   +3 more sources

Feature Selection for Partial Discharge Severity Assessment in Gas-Insulated Switchgear Based on Minimum Redundancy and Maximum Relevance

Energies, 2017
Scientific evaluation of partial discharge (PD) severity in gas-insulation switchgear (GIS) can assist in mastering the insulation condition of in-service GIS.
Ju Tang, Miao Jin, Fuping Zeng, Siyuan Zhou, Xiaoxing Zhang, Yi Yang, Yan Ma   +6 more
doaj   +1 more source

Analysis of partial discharge Ultrasonic wave characteristic on typical Defects in GIS

MATEC Web of Conferences, 2016
For analyzing partial discharge ultrasonic wave characteristic on typical defects in SF6 gas insulation switchgear (GIS), a 110 kV GIS was taken as an object to design and simulate the typical partial discharge models in GIS.
Yang Jing Gang, Shi Wen, Li Hong Tao, Gong Bin, Jiang Wei Yi   +4 more
doaj   +1 more source

The Partial Discharge Evolution Characteristics of 10kV XLPE Cable Joint

IEEE Access, 2023
The evolution of partial discharge (PD) with time can provide a deep understanding on the insulation status of power cables. It is of great significance for intelligent operation and maintenance of power cables.
Fuqiang Tian, Xubin Li, Shuting Zhang, Jinmei Cao   +3 more
doaj   +1 more source