Condition monitoring technology of transformer with multiple sensing methods united

He, Liang; Zhang, Xinghai; Cheng, J.; Li, Xing; Ding, Dengwei; Liu, Weidong

doi:10.1109/cmd.2018.8535921

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…Recently, some researchers have been developing a hybrid detection system using multiple sensing techniques in order to take advantages of various methods [ 109 , 110 ]. The UHF signal is an effective trigger for indicating a PD occurrence.…”

Section: Challenges and Future Developmentmentioning

confidence: 99%

Application of UHF Sensors in Power System Equipment for Partial Discharge Detection: A Review

Chai

Phung

Mitchell³

2019

Sensors

101

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Condition monitoring of an operating apparatus is essential for lifespan assessment and maintenance planning in a power system. Electrical insulation is a critical aspect to be monitored, since it is susceptible to failure under high electrical stress. To avoid unexpected breakdowns, the level of partial discharge (PD) activity should be continuously monitored because PD occurrence can accelerate the aging process of insulation in high voltage equipment and result in catastrophic failure if the associated defects are not treated at an early stage. For on-site PD detection, the ultra-high frequency (UHF) method was employed in the field and showed its effectiveness as a detection technique. The main advantage of the UHF method is its immunity to external electromagnetic interference with a high signal-to-noise ratio, which is necessary for on-site monitoring. Considering the detection process, sensors play a critical role in capturing signals from PD sources and transmitting them onto the measurement system. In this paper, UHF sensors applied in PD detection were comprehensively reviewed. In particular, for power transformers, the effects of the physical structure on UHF signals and practical applications of UHF sensors including PD localization techniques were discussed. The aim of this review was to present state-of-the-art UHF sensors in PD detection and facilitate future improvements in the UHF method.

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Section: Challenges and Future Developmentmentioning

confidence: 99%

Application of UHF Sensors in Power System Equipment for Partial Discharge Detection: A Review

Chai

Phung

Mitchell³

2019

Sensors

101

View full text Add to dashboard Cite

show abstract

“…The chemical-sensing strategies for transformer monitoring are studied in [9], but the other sensor types are not included. He et al [10] address the power transformer condition monitoring but does not discuss the related sensors. Islam et al [11] review the diagnostic tests and explains how to utilise them for the transformer lifetime estimation.…”

Section: Introductionmentioning

confidence: 99%

Survey of different sensors employed for the power transformer monitoring

Samimi

Ilkhechi

2020

IET Science, Measurement & Technology

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Condition monitoring technology of transformer with multiple sensing methods united

Cited by 2 publications

References 16 publications

Application of UHF Sensors in Power System Equipment for Partial Discharge Detection: A Review

Application of UHF Sensors in Power System Equipment for Partial Discharge Detection: A Review

Survey of different sensors employed for the power transformer monitoring

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