Results 211 to 220 of about 41,784 (260)
Some of the next articles are maybe not open access.
Measuring system for partial discharge
Quality Measurement: The Indispensable Bridge between Theory and Reality (No Measurements? No Science! Joint Conference - 1996: IEEE Instrumentation and Measurement Technology Conference and IMEKO Technical Committee 7. Conference Proceedings, 2002Measuring of the partial discharge (PD) parameters of the insulating systems is very important. The prompt insulating system estimation and its remaining life time give the great savings. The new, complex PD measuring methods are now developed in the world because conventional methods do not give valid information of the insulating system conditions ...
I. Petkovic +3 more
openaire +1 more source
Partial Discharge Measurement and Analysis
2013Partial 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 +2 more
openaire +1 more source
Partial discharge and the measurement in GIS
Conference Record of the 1996 IEEE International Symposium on Electrical Insulation, 2002The focal point of this paper is to study the partial discharge on-line diagnostic measurement system in GIS from the aspect of electrical measurement assuming that there were not any measurement devices before the GIS being put to use. A length of coaxial cable was wound on a magnetic ring.
null Han Xiaolian +4 more
openaire +1 more source
Measurements of the energy of partial discharges
Proceedings., Second International Conference on Properties and Applications of Dielectric Materials, 2003The purpose and the principle of measurements of partial-discharge (PD) energy are described. Two methods of PD energy measurements are presented. The first method gives the discrete values of the energy of PD pulses while the second method realized the averaging of the energy in a specific measurement time.
openaire +1 more source
Advances in Measuring Partial Discharge in Insulating Liquids
2019 IEEE 20th International Conference on Dielectric Liquids (ICDL), 2019The IEC 61294 Technical Report, published in 1993, describes a simple test procedure to measure the PD Inception Voltage (PDIV) in insulating liquids and doesn’t cover any other items related to the PD patterns and their evolution at higher voltages. This simplified approach should be considered superseded when taking into account the several studies ...
Calcara, L. +5 more
openaire +1 more source
Partial discharges and their measurement
2004The study of partial discharges is not an academic pursuit. It is driven by a very practical desire, a desire to understand a phenomenon which can be utilised to infer the level of integrity within the insulation systems of high voltage plant and which, in itself, constitutes a serious stress degradation mechanism. The role of partial discharge studies
openaire +1 more source
Nature of partial discharges and their measurement
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1987, 1987There are perhaps very few measurement techniques that have contributed as much as partial discharge detection in the evaluation of high voltage apparatus, devices and cables. Notwithstanding, the progress that has been achieved over the past several decades in the description and understanding of the various mechanisms that may precipitate electrical ...
openaire +1 more source
LEMKE: Partial Discharge Measurements
2017The 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).
openaire +1 more source
A contribution on the traceability of partial discharge measurements
IEEE Transactions on Electrical Insulation, 1992Commercially used partial discharge (PD) detectors are intended to capture current pulses generated by PD activity in the insulation of a HV test object and then to integrate it, producing a display proportional to the apparent charge. The integration procedure is approximated by a low pass (or bandpass) filter and therefore different partial detectors
P. Osvath, E. Carminati, A. Gandelli
openaire +1 more source
Basics of Partial Discharge Measurement
2019Partial discharge (PD) denotes a small, localized electrical discharge in the insulation between conductors, occurring when the local electric field strength exceeds a critical value. Prolonged exposure to partial discharges is known to degrade the dielectric behavior of the insulation and may even lead to complete breakdown. PD testing of high-voltage
openaire +1 more source