Partial discharge plant-monitoring technology: present and future developments

Kemp, I.J.

doi:10.1049/ip-smt:19951438

Cited by 65 publications

(22 citation statements)

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“…This property is an important consideration for monitoring insulation safety [28]. A major reason for the success in the use of the UHF method to measure PD in the GIS is the fact that the PD current pulse has short rise time (<100 ps in SF6) [29]. The PD signal can be detected by using the UHF sensor installed at the drain/oil valve.…”

Section: Electrical Detectionmentioning

confidence: 99%

Review on partial discharge detection techniques related to high voltage power equipment using different sensors

et al. 2014

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When operating an equipment or a power system at the high voltage, problems associated with partial discharge (PD) can be tracked down to electromagnetic emission, acoustic emission or chemical reactions such as the formation of ozone and nitrous oxide gases. The high voltage equipment and high voltage installation owners have come to terms with the need for conditions monitoring the process of PD in the equipments such as power transformers, gas insulated substations (GIS), and cable installations. This paper reviews the available PD detection methods (involving high voltage equipment) such as electrical detection, chemical detection, acoustic detection, and optical detection. Advantages and disadvantages of each method have been explored and compared. The review suggests that optical detection techniques provide many advantages in the consideration of accuracy and suitability for the applications when compared to other techniques.

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Section: Electrical Detectionmentioning

confidence: 99%

Review on partial discharge detection techniques related to high voltage power equipment using different sensors

et al. 2014

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“…The main problem with such acoustic sensors is requirement of electrical wiring around HV terminals, and the EMI noise, which limits its online application for continuous monitoring. Moreover the intensity of the PD generated acoustic signals is quite low [23] and output of piezoelectric sensors employed for the purpose is in the order of few micro-volts, which require an high gain and high input impedance amplifier to be placed in proximity of the sensor [24].…”

Section: Introductionmentioning

confidence: 99%

Condition monitoring of high voltage transformers using Fiber Bragg Grating Sensor

et al. 2015

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“…Partial discharge [1][2][3] locating detection is a key project in transformer insulation mechanism research and quality control. And it is an important foundation in transformer's condition maintenance.…”

Section: Introductionmentioning

confidence: 99%

The Partial Discharge Locating Experimental Study in Transformer Based on Ultrasonic Phased Array

Wang

Xie

Cai

et al. 2012

2012 Asia-Pacific Power and Energy Engineering Conference

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Partial discharge locating detection is a key project in transformer insulation mechanism research and quality control. And it is an important foundation in transformer's condition maintenance. The theory of partial discharge location based on ultrasonic array is an effective improvement of partial discharge locating. But in experimental studies, the problem of sensor array element coupling performance is inconsistent, the results of many cross-point locations are also different, and the success rate and the locating accuracy in double-platform locating are not better than imagined. Based on these problems, three practical methods and techniques are presented in this paper. Firstly the pencil test method is used to test the coupling performance of the elements of the array sensor to improve the success rate of localization; secondly, taking repeated measurements at the same place and the weighted average method to improve the accuracy of measuring; thirdly the multi-platform and global search method are used to improve the positioning accuracy of PD source locating. Finally, the locating experimental system is established based on the ultrasonic phased array in oil. The Experimental results show that the locating errors is less than 10cm, verifies the three methods can effectively improve the partial discharge array ultrasound locating success rate and locating accuracy.

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Partial discharge plant-monitoring technology: present and future developments

Cited by 65 publications

References 0 publications

Review on partial discharge detection techniques related to high voltage power equipment using different sensors

Review on partial discharge detection techniques related to high voltage power equipment using different sensors

Condition monitoring of high voltage transformers using Fiber Bragg Grating Sensor

The Partial Discharge Locating Experimental Study in Transformer Based on Ultrasonic Phased Array

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