Electric field theory and the fallacy of void capacitance

McAllister, I.W.

doi:10.1109/14.85117

Cited by 31 publications

(25 citation statements)

References 4 publications

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“…The interested reader is referred to excellent discussions by McAllister [3] and Pedersen [4] on details of the physics of the distribution of fields and charges. A simple method for determining time-changing currents and voltages of an electrical circuit is simulation with a SPICE -based computer-software package.…”

Section: Electrical Characteristicsmentioning

confidence: 99%

Partial Discharge Detection for Evaluation of Insulation Integrity in Aerospace Electric Power System Wiring and Components

Schweickart

Grosjean

Liu

et al. 2006

Conference Record of the 2006 Twenty-Seventh International Power Modulator Symposium

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Section: Electrical Characteristicsmentioning

confidence: 99%

Partial Discharge Detection for Evaluation of Insulation Integrity in Aerospace Electric Power System Wiring and Components

Schweickart

Grosjean

Liu

et al. 2006

Conference Record of the 2006 Twenty-Seventh International Power Modulator Symposium

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“…Una aplicación de (1) al campo dentro de la cavidad no es posible, dado que la pared de la cavidad no es una superficie equipotencial (McAllister, 1991), y una vez que las cargas espaciales están presentes, el campo no es más un campo Laplaciano, lo cual otra vez anula el uso de (1). Considerando las limitaciones del modelo ABC, Pedersen et al (1991), desarrollaron su teoría, con la intención de cuantificar la relación entre los transitorios que produce la DP y la creación o cambio de una distribución de carga en el espacio entre los electrodos del sistema, producida por una descarga eléctrica.…”

Section: Medición De Descargas Parciales En Banda Ultra Anchaunclassified

Diagnóstico en Línea de Motores de Gran Capacidad mediante la Detección de Descargas Parciales Utilizando Técnicas de Banda Ultra Ancha

Carvajal

Garcia-Colon

Asiain³

2008

Inf. tecnol.

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ResumenSe estudia un método no normalizado y no invasivo para el diagnóstico en línea de motores de gran capacidad. El método está basado en la detección de descargas parciales utilizando técnicas de medición de banda ultra ancha. Las señales medidas por el sensor, son electrónicamente procesadas para ampliar su duración, digitalizadas y enviadas a un detector digital de descargas parciales convencional. Se presentan los resultados obtenidos de la evaluación en línea de trece motores de 2500 CP a 13.8 kV, instalados y operando en una planta de bombeo de hidrocarburos, y se comparan estos valores con los encontrados en la literatura. Los resultados obtenidos permiten concluir que esta técnica, tiene la sensibilidad adecuada para el adecuado diagnóstico en línea de motores de gran capacidad. Palabras claves: motores de gran capacidad, diagnóstico en línea, descargas parciales, banda ultra ancha On-line Diagnosis of High Power Motors Based On Ultra Wide Band Partial Discharge Detection AbstractA non-standardized and non invasive method for on-line diagnosis of high capacity motors is presented. The method is based on ultra wide band partial discharge measuring techniques. The signals measured by the sensor are stretched electronically, digitized and fed to a conventional partial discharge digital detector. The results obtained in thirteen motors of 2500 HP at 13.8 kV during operating in an oil pumping facility, are presented, and comparison with literature values is done. The results allow concluding that the technique used has the adequate sensitivity for on-line diagnosis of high capacity motors.

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“…Substantial progress was thereafter made in defining other PD mechanisms by modeling [4][5][6] and numerical simulation [7][8]. A further development is the approach to the formulation relating the measured transient to induced charge [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Integral equation method for the computation of PD inception voltage in voids

Huang

Burbank

Zhang

2009

2009 IEEE Conference on Electrical Insulation and Dielectric Phenomena

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The presence of voids in insulation materials has deleterious effects on the electrical performance of insulation, and eventually cause breakdown of the insulation. Understanding the physics of partial discharge is a major field of research for the interpretation and identification of insulation defects. The integral equation method presented in this paper provides a general approach to computations of electric stress in dielectrics with voids. The applications of the method are illustrated by computations of the maximum electric stress and inception voltage for voids of various shapes. The method presented in this paper allows us to analyze the electric stress in dielectrics with voids, and thus to make assessment of the risk of insulation breakdown.

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Electric field theory and the fallacy of void capacitance

Cited by 31 publications

References 4 publications

Partial Discharge Detection for Evaluation of Insulation Integrity in Aerospace Electric Power System Wiring and Components

Partial Discharge Detection for Evaluation of Insulation Integrity in Aerospace Electric Power System Wiring and Components

Diagnóstico en Línea de Motores de Gran Capacidad mediante la Detección de Descargas Parciales Utilizando Técnicas de Banda Ultra Ancha

Integral equation method for the computation of PD inception voltage in voids

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