Partial discharges. Their mechanism, detection and measurement

Bartnikas, R.

doi:10.1109/tdei.2002.1038663

Cited by 465 publications

(211 citation statements)

References 193 publications

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“…Convencionalmente, las DP en cavidades de un dieléctrico sólido, son discutidas en términos de un circuito capacitivo equivalente conocido como el modelo ABC, donde la cavidad es representada por una capacitancia y las descargas se simulan por la descarga de esa capacitancia (Bartnikas, 2002). Es importante notar que la operación de un circuito equivalente no corresponde al proceso físico que ocurre en el sistema real.…”

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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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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“…Partial discharge (PD) measurement is becoming increasingly vital in monitoring the condition of cable insulation, providing valuable information about the health of the insulation, and predicting when insulation is likely to fail. Partial discharge under AC conditions has been a subject of study for several decades [1] with several commercial solutions available today [2]. However, the increasing use of high voltage DC links, for subsea, or long land-based connections provides motivation for the increased use of PD monitoring on cables operating under HVDC.…”

Section: Introductionmentioning

confidence: 99%

Partial discharge activity in polymeric cable insulation under high voltage AC and DC

Morris

Siew

2017

2017 52nd International Universities Power Engineering Conference (UPEC)

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The Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output.1 Abstract-The focus of this paper is to report on analysis of partial discharge characteristics in insulation samples containing artificially created voids under AC and DC excitation. Samples were initially tested under AC conditions to determine that the artificial void was the dominant source of PD. Once this was proven the samples were tested under DC to generate knowledge on PD under these conditions. The results were analyzed, with differences between AC and DC PD in artificial voids determined. The impact of these differences on potential methods of PD detection are also briefly discussed.

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“…They are the high performance liquid chromatography method (HPLC) and the dissolved gas analysis method (DGA). The HPLC analyses PD expelled byproducts such as degraded forms of glucose induced by degradation of insulation [5,6], while the DGA analyses the accumulated volume of the gas produced by the PD. For chemical measurement techniques, sufficient expelled byproducts or gas has to be collected before analysis can begin.…”

Section: Introductionmentioning

confidence: 99%

Review on partial discharge detection techniques related to high voltage power equipment using different sensors

et al. 2014

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When operating an equipment or a power system at the high voltage, problems associated with partial discharge (PD) can be tracked down to electromagnetic emission, acoustic emission or chemical reactions such as the formation of ozone and nitrous oxide gases. The high voltage equipment and high voltage installation owners have come to terms with the need for conditions monitoring the process of PD in the equipments such as power transformers, gas insulated substations (GIS), and cable installations. This paper reviews the available PD detection methods (involving high voltage equipment) such as electrical detection, chemical detection, acoustic detection, and optical detection. Advantages and disadvantages of each method have been explored and compared. The review suggests that optical detection techniques provide many advantages in the consideration of accuracy and suitability for the applications when compared to other techniques.

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Partial discharges. Their mechanism, detection and measurement

Cited by 465 publications

References 193 publications

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

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

Partial discharge activity in polymeric cable insulation under high voltage AC and DC

Review on partial discharge detection techniques related to high voltage power equipment using different sensors

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