Results 221 to 230 of about 3,549 (258)
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Miniature partial discharge calibrator synchronized by capacitive coupling
IEEE Transactions on Electrical Insulation, 1992A new partial discharge calibrator is described. The device, suitable to operate in a floating position, generates synchronized pulses at the mains frequency. Synchronization is achieved by capacitive coupling to the mains with a cable wound around the power leads.
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Design of wireless partial discharge digital calibrator based on LoRa
2022 41st Chinese Control Conference (CCC), 2022Daokai Wu, Xiaojun Wang, Chuxuan Huang
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Laboratory Calibration of HFCT Partial Discharge Detection Systems
2021 IEEE 4th International Electrical and Energy Conference (CIEEC), 2021With the advantages of high sensitivity and non-intrusiveness, HFCT PD detection systems are implemented in order to monitor incipient faults of power cables. This paper introduces a laboratory calibration method for HFCT PD detection systems based on a Gauss pulse signal.
Yifan Wang +5 more
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Performance Comparison of Various Partial Discharge Calibrators
2024 4th International Conference on Electronic and Electrical Engineering and Intelligent System (ICE3IS)Riecky Sebastiano Semuel +2 more
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A method for calibration of partial discharge calibrators
1998 Conference on Precision Electromagnetic Measurements Digest (Cat. No.98CH36254), 1999A method for calibration of partial discharge calibrators has been developed based on passive integration of the induced charge. The voltage over a known capacitor is measured by a calibrated digital sampling voltmeter and the charge is calculated as the voltage multiplied by the capacitance.
O. Gunnarsson, A. Bergman, K.-E. Rydler
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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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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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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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Partial Discharge calibration using frequency domain measurement in power cables
2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 2014Partial Discharge (PD) calibration is always a challenge in power cable diagnosis, which is particularly difficult in online PD testing. The conventional calibration procedure requires injecting a calibration pulse into the tested cable, which indicates only offline PD testing system can be calibrated.
Jim Guo, Essay Shu, Oscar Morel
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