Results 161 to 170 of about 436 (218)

Measuring partial discharges under pulsed voltage conditions

IEEE Transactions on Dielectrics and Electrical Insulation, 2008
Partial Discharges (PDs) measurement deserves a specific study when in the presence of fast rising/falling voltages, as the output of IGBT switching devices. In such operating conditions, the choice of a proper detection system is crucial in order to have the best signal to noise ratio and to solve some problems linked to the specific characteristics ...
GUASTAVINO, FRANCESCO, DARDANO A, TORELLO, EUGENIA   +2 more
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Amplitude Analysis in Partial Discharge Measurement

2009 Second International Conference on Advances in Circuits, Electronics and Micro-electronics, 2009
In commercial sphere, there is obvious the pursuit of produce electrical wares with high reliability and low risk of breakdown. It is known, the Partial Discharge (PD) is regarded as a parasitic effect occurring in insulating systems. Deep investigation of Partial Discharge activity is necessary for longer service life and better reliability of high ...
Tomas Havlicek, Jiri Haze, Jaroslav Bousek   +2 more
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Partial Discharge Measurement and Analysis

2013
Partial Discharge (PD) is a common local defect of high voltage equipment, especially insulation system of transformers. PD in the insulation of electrical equipment is a sign of dielectric defects as well as a cause of further degradation of its insulation system, which may ultimately lead to failure of the apparatus.
Sivaji Chakravorti, Debangshu Dey, Biswendu Chatterjee   +2 more
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On line measurement of partial discharges

2000 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.00CH37132), 2002
On line measurement of partial discharges of equipment while in service has a great deal of potential in saving equipment down time in gas insulated substations (GIS) and gas insulated transmission lines (GITL). To address this aspect of partial discharge measurement there is scope for considerable progress particularly in the area of cables already is
N. Srinivas, N. Ahmed, G. Raju
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LEMKE: Partial Discharge Measurements

2017
The LEMKE Partial Discharge Measurements dataset includes ASCII file outputs from PD testing of low density polyethylene (LDPE) and polypropylene film samples using a LEMKE LDS-6 measurement system. Files include PD magnitude, phase, and period number (please note voltage measurements are not valid, the correct applied RMS voltage is in the file name).
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Cable model for partial discharge measurements

2016 IEEE International Conference on Dielectrics (ICD), 2016
A transient analysis software for high voltage cables has been developed as an aid to partial discharge measurements carried out to assess the insulation condition of installed cables. Knowledge of the transient behavior of cable systems allow to know if a specific measuring PD system is sensitive enough to detect partial discharge pulses that can ...
Abderrahim Khamlichi, Fernando Garnacho, Fernando Alvarez   +2 more
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Partial discharge measurement and interpretation

IEEE Electrical Insulation Magazine, 1988
An overview is given of partial discharge patterns, their evaluation, and determination of their origin. Some brief comparisons of test equipment considered to be of general interest are made. The intent is to assist practitioners in the interpretation of results as well as in the accurate discrimination between true partial discharges within an ...
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Computer — Aided partial discharge measurements

Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1987, 1987
An instrument is described which makes computer assisted measurements for the identification of the source and nature of partial discharges which may occur in an insulation system. The instrument accepts pulse count, phase, and voltage magnitude information from a commercially available partial discharge detector of the resonant-coupled type.
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Experience with UHF partial discharge measurements

Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319), 2003
Some tests on UHF measuring techniques on transformers and oil-paper insulation models have been reported in literature. The results indicate the feasibility of this method for oil-paper insulation, but are not conclusive. To have a good perspective of this method, UHF partial discharge (PD) measurements were conducted on small oil-paper insulation ...
R. Kuppuswamy, S. Lelaidier
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Partial discharge (PD) measuring techniques

15th IET International School on High Voltage Engineering and Testing 2008, 2008
The physical background of partial discharges will be explained on simple models. The requirements on the complete partial discharge measuring systems including the calibration and evaluation of the measuring results will be discussed and examples of partial discharge measurements on transformers in the laboratory and on site will be presented. Finally
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