Results 31 to 40 of about 177 (121)
High Voltage, Volume 11, Issue 2, Page 351-359, April 2026.ABSTRACT The electromagnetic wave produced by a partial discharge (PD) covers a broad range of frequencies, from a few kHz to several 100 MHz. Because of the nonlinear response of the stator winding, each frequency component of the PD pulse experiences different levels of attenuation as it travels through the winding structure. Consequently, the choice
Arash Abyaz +2 more
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Sensors, 2015 Detecting partial discharge (PD) is an effective way to evaluate the condition of high-voltage electrical equipment insulation. The UHF detection method has attracted attention due to its high sensitivity, strong interference resistance, and ability to ...
Jingcun Liu +3 more
doaj +1 more source
IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.This study uses chaotic synchronisation and fractal analysis of acoustic partial discharge signals in 25‐kV cable joints. Extracted 3D error trace features combined with a neural network enable accurate, noise‐robust defect recognition, effectively distinguishing different cable joint defect types with high reliability and ease of implementation ...
Feng‐Chang Gu, Sen‐Fu Chan
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The Journal of Engineering, Volume 2026, Issue 1, January/December 2026.This paper proposes a statistical DGA diagnosis method to evaluate the occurrence and type of the discharge starting stage of the converter transformer based on a statistical analysis of the gas generation amount in the converter transformer oil during operation.
Kwang Hui An +2 more
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High Voltage, Volume 10, Issue 6, Page 1371-1379, December 2025.ABSTRACT This paper focuses on the energisation of high voltage DC (HVDC) and medium voltage DC (MVDC) insulation systems, referring mainly to cables for both theoretical development and validation testing. Cable system energisation can be frequent during its lifetime, and it can possibly be affected by partial discharges (PD), because of manufacturing,
Gian Carlo Montanari +4 more
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IEEE Access, 2019 Metal particles and bubbles are two typical impurities in transformer oil that can cause partial discharge (PD) and even electric breakdown. The PD characteristics are closely related to the motions of these impurities in flowing transformer oil. In this
Yongze Zhang +3 more
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High Voltage, Volume 10, Issue 6, Page 1380-1389, December 2025.ABSTRACT Partial discharge (PD) is the indicator of the insulation defect in cables. However, the pulse current method, which is widely adopted in land cables, cannot obtain PD signals of high‐voltage direct current (HVDC) submarine cables due to attenuation and installation position.
Hang Wang +7 more
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High Voltage, Volume 10, Issue 5, Page 1110-1124, October 2025.ABSTRACT The air gap at the interface inside the cable terminations for high‐speed trains and the partial discharge caused by it are two important factors affecting the insulating performance. The development of air gap and partial discharge will eventually lead to breakdown faults.
Dongli Xin +7 more
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High Voltage, 2018 Power transformer partial discharge signal measurement using Radio Frequency method has advantages over IEC 60270 ‘apparent charge’ measurement method for online monitoring due to greater immunity against external interference.
Keyvan Firuzi +4 more
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High Voltage, Volume 10, Issue 5, Page 1176-1189, October 2025.ABSTRACT Electrical insulation faults produce partial discharges (PD), which can be analysed to identify specific types of defects. PD clustering is a widely used method to identify PD sources, although its success depends largely on the feature maps used.
Jannery Rivas +4 more
wiley +1 more source