Results 81 to 90 of about 488 (109)
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Comparative Analysis of Methods for Partial Discharge Calibrator Performance
2024 IEEE International Conference on High Voltage Engineering and Applications (ICHVE)Jan Hlaváček
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Inverted diagram of calibration for partial discharge measuring
2008 International Conference on Condition Monitoring and Diagnosis, 2008PD measurement is well-known method for inspection of high voltage equipment. However, its on-site application has some difficulties. This paper is dedicated to the calibration of PD measurement by electrical method; it is more precise, to the method of the introduction of charge into the tested object.
A. Ovsyannikov, S. Zhivodernikov
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Evaluation Of Partial Discharge Measurement Circuits And Associated Calibration Techniques
IEEE Transactions on Power Apparatus and Systems, 1985This paper presents an evaluation of the RIV circuits used for the measurement of partial discharges. The results show that the NEMA 107-1964 RIV circuit, as presently used in high voltage laboratories, does not consider the entire calibration problem.
S. J. Huang +3 more
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A critique of present calibration procedures for partial discharge measurements
IEEE Transactions on Electrical Insulation, 1993The need for improved standardization procedures for use on different types of partial discharge (PD) measuring systems is discussed. This requirement is examined using recording and processing data of complex PD signals obtained from in-service electrical apparatus.
W.S. Zaengl, K. Lehmann
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A Practical Approach for the Calibration of Partial Discharges Measurements at Field
2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D), 2018Partial discharges (PD) measurements at field are a useful tool for predictive maintenance of high voltage equipment for preventing in service failures. This paper shows a practical procedure for the calibration of partial discharges measurements at field, when high frequency current transformers (HFCT) installed in equipments' grounding conductors ...
Hedio Tatizawa +5 more
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On-line partial discharge calibration and monitoring for power transformers
Electric Power Systems Research, 1999Partial discharge (PD) is one of the major factors causing insulation damage of power transformers. This paper describes the development of on-line partial discharge monitoring system for transformers. The developed set can monitor up to four power transformers continuously.
A.S Farag +8 more
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Calibration of Partial Discharge Detectors for Pulse-Height Distribution Analysis
IEEE Transactions on Electrical Insulation, 1979The effect of the calibration-pulse fall times, ranging from 0.52-56 ?s, on the response of partial-discharge detectors using a multichannel analyser has been investigated. Although the equalization of fall/rise time ratio results in a single peak distribution, the latter is sensitive to small variations in this ratio.
Abobakr S. Ahmed, Asser A. Zaky
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Towards improved calibration in the measurement of partial discharges in rotating machinery
IEEE International Symposium on Electrical Insulation, 2002It is pointed out that an improved calibration strategy for partial-discharge (PD) detectors in rotating machine applications can only be achieved if the propagation characteristics of PD pulses are clearly understood, thus enabling the calibration pulse to simulate the discharge pulse more accurately as it appears at the detector terminals.
R. Geary +3 more
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Research on the Calibration Influence Factors of UHF Partial Discharge Detector
2020 5th International Conference on Smart Grid and Electrical Automation (ICSGEA), 2020Ultra high frequency (UHF) partial discharge detection technology has been widely used in on-line monitoring of electrical equipment, for the influence factors of UHF signal's transfer function is complicated, the calibration of UHF method is still not realized until now. In order to study the calibration influence factors of UHF partial discharge (PD)
Liu Shuncheng +5 more
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Calibration and comparison of partial-discharge and radio-interference measuring circuits
Proceedings of the Institution of Electrical Engineers, 1968Methods of calibrating circuits for measuring partial discharges and radio-interference (r.i.) voltages are discussed. It is shown that discharge-measuring circuits, whether using a peak-measuring discharge detector or an r.i. meter, are best calibrated by applying a charge-quantity pulse calibrator of known repetition frequency in parallel with the ...
E.M. Dembinski, J.L. Douglas
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