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Your search keyword '"HIGH-frequency discharges"' showing total 2 results
Start Over Descriptor "HIGH-frequency discharges" Database Directory of Open Access Journals
2 results on '"HIGH-frequency discharges"'

1. Identification of slot discharges in rotating machine insulation system using variable frequency PD measurement

Author

Ramesh P. Nair, Sumangala B. Vishwanath, and Nageshwar B. Rao

Subjects
electric machines, partial discharge measurement, epoxy insulation, stators, coils, air gaps, frequency measurement, high-frequency discharges, slot discharge activity identification, rotating machine insulation system, variable frequency PD measurement, insulation diagnosis perspective, rotating machine testing, power frequency, slot discharge phenomenon, phase resolved partial discharge pattern, mica-epoxy stator coil, slot discharge characteristics, air gap, slot discharge measurements, insulation surface, grounded steel plate, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Electricity, QC501-721
Abstract

Slot discharge studies are very important from the insulation diagnosis perspective. Further in practice, testing of rotating machines with power frequency requires sources which are quite bulky and costly. Instead if the diagnosis is carried out at lower frequencies (

Published
2018
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2. Thermal characterisation of dielectric barrier discharge plasma actuation driven by radio frequency voltage at low pressure

Author

Yang Zhen, Song Huimin, Wang Weilong, Jia Min, and Jin Di

Subjects
infrared imaging, glow discharges, flow control, high-frequency discharges, plasma devices, dielectric-barrier discharges, plasma diagnostics, electrochemical electrodes, plasma temperature, electric actuators, pressure 40.0 kPa, pressure 3.0 kPa, chordwise direction, thermographic method, radiofrequency voltage waveform, diffuse glow discharge, discharge mode, thermal equilibrium, temperature curves, discharge starts, surface temperature, high-voltage electrode, high-temperature region, actuator surface, spatial–temporal temperature field, voltage–current waveforms, RF discharge images, dielectric barrier discharge plasma actuation, thermal characterisation, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Electricity, QC501-721
Abstract

In this study, the thermal characterisation of dielectric barrier discharge plasma actuation driven by radio frequency (RF) voltage waveform at low pressure is studied. The RF discharge images and voltage–current waveforms are quite different under 3 and 40 kPa. The thermographic method has been proposed for the spatial–temporal temperature field on the actuator surface

Published
2018
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