Topic
Partial discharge
About: Partial discharge is a research topic. Over the lifetime, 13997 publications have been published within this topic receiving 102058 citations. The topic is also known as: PD.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the design and application of a circular microstrip antenna for partial discharge detection is presented, aiming at an optimized structure, the computational simulations with several combinations of the antenna dimensional parameters were performed.
Abstract: In this paper, the design and application of a circular microstrip antenna for partial discharge detection is presented. For this purpose, the truncated ground plane technique was applied for the bandwidth enhancement. In addition, aiming at an optimized structure, the computational simulations with several combinations of the antenna dimensional parameters were performed. In order to verify whether the developed antenna met the prerequisites (bandwidth and gain) for practical application in partial discharge detection, the optimized antenna was subjected to tests in an anechoic chamber. Finally, the antenna sensitivity was compared with the IEC 60270 standard method. For this purpose, the simultaneous tests were carried out in a partial discharge generator arrangement composed of an oil cell with point-to-plane and plane-to-plane electrode configurations. The developed antenna can detect apparent charge values higher than 30 pC and has an average gain greater than 2 dB along its bandwidth. The obtained results attested to the potential of the developed antenna for the development of UHF sensors for partial discharge detection in high-voltage equipment.
38 citations
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TL;DR: In this article, partial discharge and local overheating can cause the decomposition of SF6, resulting in a decrease in insulation strength, which is a common problem in gas insulation equipment.
Abstract: As the insulating medium, SF6 is widely used in gas insulation equipment. Partial discharge and local overheating can cause the decomposition of SF6, resulting in a decrease in insulation strength ...
38 citations
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TL;DR: In this article, the adoption of a field-theoretical approach to problems arising in the framework of electrical insulation is discussed with reference to six main topics, which have been addressed over the last 30 years.
Abstract: The adoption of a field-theoretical approach to problems arising in the framework of electrical insulation is discussed with reference to six main topics, which have been addressed over the last 30 years. These include uniform field electrodes, Green's differential equation, electrode surface roughness, induced charge, electrostatic probes, and partial discharge transients, together with several follow-on aspects. Each topic is introduced and thereafter the progress achieved through the use of a field-theoretical approach is reviewed. Because the topics cover a wide spectrum of conditions, it is amply demonstrated that such an approach can lead to significant progress in many areas of electrical insulation.
38 citations
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TL;DR: In this article, an on-line calibration method using pulse injection through tap of high voltage transformer bushings is described. But, this method is not suitable for on-site partial discharge (PD) monitoring.
38 citations