Partial discharge measurements in air and argon at low pressures with and without a dielectric barrier

Kasten, D.G.; Liu, X.; Sebo, S.A.; Grosjean, Dennis; Schweickart, D.L.

doi:10.1109/tdei.2005.1430404

Cited by 28 publications

(18 citation statements)

References 11 publications

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“…Details of the acrylic chamber and associated gas-flow arrangement can be found in [1]. Partial discharges of several representative electrode arrangements were investigated.…”

Section: Methodsmentioning

confidence: 99%

“…These included point-to-plane with insulator barrier, point-to-plane without insulator barrier, insulated conductor on plane, and twisted pair of insulated conductors. Electrical connections are similarly described in [1], and follow the principles of [2]. AC excitation was supplied from an adjustable 60-Hz supply.…”

Section: Methodsmentioning

confidence: 99%

“…The goals of recent work were to (1) understand the electrical characteristics of PD in low pressure environments, (2) design a PD testing and analysis instrument that is capable of measuring PD activity at low pressures, and (3) formulate guidelines for use by the testing community in future PD testing of high-voltage components that are intended for use in medium-and high-altitude aircraft [1]. Typical aircraft components, such as a twisted pair of insulated conductors and a high-voltage cable, were among the electrode configurations employed at pressures in the range of 0.27-101 kPa in air, and 2.7-101 kPa in argon and helium.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Low-Pressure Partial-Discharge Measurements: Monitoring the Insulation Integrity of Aircraft Power Wiring Systems

Schweickart

Grosjean

Kasten

et al. 2008

2008 IEEE International Power Modulators and High-Voltage Conference

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Partial-discharge (PD) characteristics in three gases (air, argon and helium) at pressures between 101 kPa (760 Torr) and about 0.27 kPa (2 Torr) under 60-Hz ac energization were studied. Measurements for two representative electrode configurations showed that the electrical characteristics of PD (specifically, electric pulse waveforms) at low pressures differ significantly from those at sea-level pressures. Difficulties in obtaining accurate measurements when adhering to guidelines defined by the IEC 60270 standard are described. Suggested modifications of the standard procedures are presented for measurement and calibration for low-pressure PD.

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“…Details of the acrylic chamber and associated gas-flow arrangement can be found in [1]. Partial discharges of several representative electrode arrangements were investigated.…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Low-Pressure Partial-Discharge Measurements: Monitoring the Insulation Integrity of Aircraft Power Wiring Systems

Schweickart

Grosjean

Kasten

et al. 2008

2008 IEEE International Power Modulators and High-Voltage Conference

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“…However, the experimental findings by Kasten et al for a cavity with length of 20 mm show that the time to peak of discharge current decreases as pressure increases [50]. His findings relate to cavities in the millimeter range, where streamers may be taken to control discharge propagation and transfer the results correspond to a different physical mechanism.…”

Section: Gas Pressure Inside the Micro-cavitymentioning

confidence: 93%

A parametric study on the PD pulses activity within micro-cavities

Ganjovi

2015

J Theor Appl Phys

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A two-dimensional kinetic model has been used to parametric investigation of the spark-type partial discharge pulses inside the micro-cavities. The model is based on particle-in-cell methods with Monte Carlo Collision techniques for modeling of collisions. Secondary processes like photo-emission and cathode-emission are considered. The micro-cavity may be sandwiched between two metallic conductors or two dielectrics. The discharge within the micro-cavity is studied in conjunction with the external circuit. The model is used to successfully simulate the evolution of the discharge and yield useful information about the build-up of space charge within the micro-cavity and the consequent modification of the applied electric field. The phase-space scatter plots for electrons, positive, and negative ions are obtained in order to understand the manner in which discharge progresses over time. The risetime and the magnitude of the discharge current pulse are obtained and are seen to be affected by micro-cavity dimensions, gas pressure within the micro-cavity, and the permittivity of surrounding dielectrics. The results have been compared with existing experimental, theoretical, and computational results, wherever possible. An attempt has been made to understand the nature of the variations in terms of the physical processes involved.

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“…The spectrum spreads to higher frequencies and it becomes more difficult to distinguish PD signals from these interferences [1]. In addition, we have recently shown that a decrease in the pressure modifies the rise time of the PD pulses and therefore of the discharge spectrum [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Numerical signal processing methods for partial discharge detection in more electrical aircraft

Abadie

Billard²,

Lebey

2016

2016 IEEE International Conference on Dielectrics (ICD)

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In forecoming "more electrical aircrafts", aircrafts will become more compact and lighter. Hydraulic, pneumatic or mechanical systems will be replaced by electrical ones thus leading to an increased demand of electric power. The network voltage is expected to increase far above Paschen's minimum, thus increasing the risk of partial discharges. Furthermore the use of inverter drives will be generalized and PD detection on square voltage powered equipments will become a mandatory challenge. The purpose of this study is to propose a method to denoise partial discharge signals embedded in the electromagnetic noise induced by switchings. This denoising is performed using the wavelet decomposition

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Partial discharge measurements in air and argon at low pressures with and without a dielectric barrier

Cited by 28 publications

References 11 publications

Low-Pressure Partial-Discharge Measurements: Monitoring the Insulation Integrity of Aircraft Power Wiring Systems

Low-Pressure Partial-Discharge Measurements: Monitoring the Insulation Integrity of Aircraft Power Wiring Systems

A parametric study on the PD pulses activity within micro-cavities

Numerical signal processing methods for partial discharge detection in more electrical aircraft

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