Results 91 to 100 of about 488 (109)

Fundamentals of Partial-Discharge Detection: System Sensitivity and Calibration

1979
The 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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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), 2004
Relevant 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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Validation of partial discharge calibrators for small charge rates

2023 23rd International Scientific Conference on Electric Power Engineering (EPE), 2023
Radek Procházka, Jan Hlaváček
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Problems associated with partial discharge detection calibration in large machines

IEE Colloquium on Discharges in Large Machines, 1998
The 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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Review of the Calibration for Partial Discharge Detectors by Electromagnetic and Acoustic Methods

2022 IEEE/IAS Industrial and Commercial Power System Asia (I&CPS Asia), 2022
Yifan Wang, Ming Sun, Zun Wang, Chengwu Zou, Jinlong Gong, Jiongting Jiang   +5 more
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Calibration Methods of Partial Discharge Measuring for Online Insulation Diagnosis

2022 9th International Conference on Condition Monitoring and Diagnosis (CMD), 2022
Akira Fujimoto, Takashi Harakawa, Makoto Takanezawa, Hirotaka Tsubakihara   +3 more
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Partial discharge measurements and calibration: limits and perspectives for power cables

2010
This paper discusses the limits of partial discharge apparent charge estimation focusing on power cables. In particular, the influence of attenuation and propagation phenomena on partial discharge measurement is highlighted, showing that estimates can diverge significantly from the true apparent charge.
CAVALLINI, ANDREA, MONTANARI, GIAN CARLO, TOZZI, MARCO   +2 more
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Calibration of Partial Discharge Sensors in Air and SF 6 Insulation

2022 5th International Conference on Power Engineering and Renewable Energy (ICPERE), 2022
Umar Khayam, Arpan Zaeni, M. Kamarol M. J.   +2 more
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Study on the Calibration of Partial Discharge Calibrators of charge from 0.1pC to 10nC

2024 Conference on Precision Electromagnetic Measurements (CPEM)
Na Liu, Shengyou Gao, Bo Li, null Dongxu
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Testing New Design Partial Discharge Detector Using Vector Network Analyzer and Charge Calibrator

2021
Umar Khayam
exaly