Results 111 to 120 of about 17,847 (159)

Propagation of partial discharge signals and the location of partial discharge occurrences

2013 IEEE 8th International Conference on Industrial and Information Systems, 2013
The location of the partial discharge source in transformer insulation was analysed by simulation studies. The partial discharge source was modelled such that it radiates the Ultra High Frequency (UHF) signal. It was observed that there exists a time difference of arrival of the UHF signal at the sensors based on its distance from the location of the ...
R. Sarathi, I. P. Merin Sheema, V. Subramanian   +2 more
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The Nature of the Measurement of Partial Discharge

2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2019
The measurement of partial discharges in solid insulation is predictive of the long-term performance of the insulation. That makes the measurement very important in high-voltage technology. The topic has been of interest for a long time, and has been extensively studied around the world.
Harold Kirkham, D. Rod White
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Partial Discharge Pattern Detected by New Design Partial Discharge Sensors

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS), 2019
This research discusses the design and testing of the bowtie antenna as a partial discharge sensor (PD). In this design, there are three types of bowtie antennas which are simulated with high frequency structure simulator (HFSS) software with various shapes and sizes, namely double layer bowtie antenna with edge modification, doube layer bowtie antenna
Muhammad Sukri Habibi Daulay, Umar Khayam   +1 more
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Partial discharge location in powertransformers

IEE Proceedings - Science, Measurement and Technology, 2000
In a power transformer, high levels of partial discharge activity may lead to an insulation failure. If a partial discharge (PD) could be detected and located before the insulation fails, the transformer could be repaired or replaced before any consumers connected to the transformer lose supply. A technique is described in the paper that can be used to
Wang, Z.D., Crossley, P.A., Cornick, K.J., Zhu, D.H.   +3 more
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Partial discharge. XVII. The early history of partial discharge research

IEEE Electrical Insulation Magazine, 1993
For pt.XVI see ibid., vol.9, no.3, p.21 et seq. (1993). Early investigations into partial discharge (PD) phenomena are reviewed to illustrate how little has changed and how much has, in some respects, been repeated during the forty years from 1940 to 1980.
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Partial discharge diagnostic

Proceedings of the 6th International Conference on Properties and Applications of Dielectric Materials (Cat. No.00CH36347), 2002
The partial discharge (PD) measurement is a very well known possibility to assess the quality of an insulation system. The aim of the PD-diagnostic is the detection of destruction of electrical insulation as a result of electrical stress especially of PD during operation.
M. Muhr, R. Woschitz
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Partial discharge. XIV. Acoustic partial discharge detection-practical application

IEEE Electrical Insulation Magazine, 1992
For pt.XIII see ibid., vol.8, no.4 (July/August 1992). The finer points of acoustic partial discharge (PD) detection systems and their common applications are treated. The PD source, propagation path of the waves, the acoustic sensor, and system noise are described.
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Partial discharge. XIII. Acoustic partial discharge detection-fundamental considerations

IEEE Electrical Insulation Magazine, 1992
An overview of the basic acoustics theory required to understand the finer points of acoustic partial discharge (PD) detection systems is given. PD and acoustic test methods are discussed, and acoustic wave motion, impedance, and intensity are described. Wave propagation and signal absorption, and the velocity of sound are discussed.
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Microsensors for Partial Discharge

2008 International Conference on Advances in Electronics and Micro-electronics, 2008
For longer service life and better reliability of high voltage under stressed parts or of such whole systems, facilities for deep investigation are necessary. Extremely small microsensors which can be integrated during the production inside measured object like high voltage transformers, drivers or high voltage parts of PCB's are, can serve us valued ...
Pavlík Michal, Havlícek Tomas
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Partial discharges. XII. Partial discharge detection in rotating electrical machines

IEEE Electrical Insulation Magazine, 1992
For pt.XI see ibid., vol.8, no.2, p.14 et seq. (1992). Partial discharge (PD) phenomena in the windings of rotating machines are examined. PD measurements on rotating machines, both offline and online, are described. Data acquisition and analysis requirements are briefly considered. >
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