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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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The innovative inductive calibration technique for partial discharge detection apparatus
Conference Record of the 1988 IEEE International Symposium on Electrical Insulation, 2003The recently devised inductive calibration technique (ICT) for partial-discharge detection offers several advantages over the conventional direct and indirect calibration methods. These include negligible loading of the test circuit, better reproduction of the true partial discharge pulse frequency spectrum and isolation from the applied AC test ...
T.M. Bilodeau +3 more
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Signal transmission and calibration of on-line partial discharge measurements
Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials (Cat. No.03CH37417), 2004Relevant standards such as the IEC60270 concentrate on a measurement frequency band below 1 MHz and on lumped, i.e. non-distributed test objects. On-line partial discharge measurements often require using higher frequencies to avoid noise interference.
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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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Fundamentals of Partial-Discharge Detection: System Sensitivity and Calibration
1979The sensitivity and calibration of partial-discharge detection systems is an important aspect of the general subject of partial-discharge measurements of products or structures involving electrical insulating materials. The primary objective is to perform a measurement, using a detection system having a sensitivity adequate to the purposes of the test,
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New digital calibrator with impressed current pulses for partial discharge measurements
Proceedings of 1998 International Symposium on Electrical Insulating Materials. 1998 Asian International Conference on Dielectrics and Electrical Insulation. 30th Symposium on Electrical Insulating Materials (IEEE Cat. No.98TH8286), 2002In this paper, a new digital calibrator for partial discharge (PD) measurements is presented. This generator works with impress well specified charges. Thus, in difference to conventional calibrators used until now, the generated calibration pulses show only minimal dependencies both from the interior electronic realisation of the calibrator as well as
D. Wenzel, H. Borsi, E. Gockenbach
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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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Validation of partial discharge calibrators for small charge rates
2023 23rd International Scientific Conference on Electric Power Engineering (EPE), 2023Radek Procházka, Jan Hlaváček
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Problems associated with partial discharge detection calibration in large machines
IEE Colloquium on Discharges in Large Machines, 1998The detection of partial discharges (PD) has become a standard technique towards the assessment of the integrity of the solid insulating systems of rotating machinery. The author discusses the calibration problem of PD detection instrumentation and whether a solution exists. The author then questions whether or not the problem is all that severe.
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Calibration Methods of Partial Discharge Measuring for Online Insulation Diagnosis
2022 9th International Conference on Condition Monitoring and Diagnosis (CMD), 2022Akira Fujimoto +3 more
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