Search Results - "Gockenbach, E."

Advancing new techniques for UHF PDdetection and localization in the power transformers in the factory tests by Mirzaei, H., Akbari, A., Gockenbach, E., Miralikhani, K.

“…Partial discharge (PD) detection in the ultra-high frequency (UHF) range is state of the art. One of the most critical points in this detection method is…”
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Dielectric spectroscopic measurements on transformer oil-paper insulation under controlled laboratory conditions by Setayeshmehr, A., Fofana, I., Eichler, C., Akbari, A., Borsi, H., Gockenbach, E.

“…For reliable operation of power transformers, the condition of the insulation system is essential. This paper reports on a detailed study of the effect of…”
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Component Reliability Modeling of Distribution Systems Based on the Evaluation of Failure Statistics by Xiang Zhang, Gockenbach, E.

“…The procedures of asset-management have been developed into a central element of network operation and planning in liberalised electric markets of power supply…”
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A new method for purposes of failure diagnostics and FRA interpretation applicable to power transformers by Pham, D. A. K., Pham, T. M. T., Borsi, H., Gockenbach, E.

“…To diagnose electrical and mechanical failures on the active part of power transformers efficiently, different state-of-the-art testing methods are recommended…”
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Behavior of machine insulation systems subjected to accelerated thermal aging test by Farahani, M, Gockenbach, E, Borsi, H, Schäfer, K, Kaufhold, M

“…Accelerated aging tests have been extensively used on motor and generator insulation systems to simulate in a short time period the deterioration mechanisms…”
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Effect of carbonized patterns on oil-impregnated aramid pressboards surface on acoustic emission signals at inhomogeneous electric field by Najafi, S. A. M., Gockenbach, E., Werle, P., Borsi, H.

“…The acoustic emission signals produced by discharges of a point-plane electrode on the surface (surface discharge) of different oil-impregnated aramid…”
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Dielectric response studies on insulating system of high voltage rotating machines by Farahani, M., Borsi, H., Gockenbach, E.

“…A significant method to characterize the electrical properties of materials and to evaluate the condition of the insulating systems is the dielectric response…”
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On the frequency domain dielectric response of oil-paper insulation at low temperatures by Fofana, I, Hemmatjou, H, Meghnefi, F, Farzaneh, M, Setayeshmehr, A, Borsi, H, Gockenbach, E

“…Results of Frequency Domain Spectroscopy measurements are known to be largely influenced by environmental conditions, such as the temperature. Because field…”
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On-line monitoring and diagnoses of power transformer bushings by Setayeshmehr, A., Akbari, A., Borsi, H., Gockenbach, E.

“…Power transformers have been in service for many years under different conditions. Statistical studies have shown that failures of bushings are one of the main…”
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Investigation of the thermal transfer coefficient by the energy balance of fault arcs in electrical installations by Xiang Zhang, Pietsch, G., Gockenbach, E.

“…In order to determine the pressure rise due to fault arcs in electrical installations, the portion of energy heating the surrounding gas of the fault arc has…”
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Reliability Centered Asset Management for Medium-Voltage Deteriorating Electrical Equipment Based on Germany Failure Statistics by Xiang Zhang, Jiaosuo Zhang, Gockenbach, E.

“…The aim of this research work focuses on three basic aspects: at first, the general life and reliability models of electrical equipment are required to…”
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An investigation of dynamic mechanical, thermal, and electrical properties of housing materials for outdoor polymeric insulators by Ehsani, M., Borsi, H., Gockenbach, E., Morshedian, J., Bakhshandeh, G.R.

“…The present paper reports the results about a study of mechanical, thermal, dynamic mechanical and electrical properties of housing (weather shed) materials…”
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Determining the test voltage factor function for the evaluation of lightning impulses with oscillations and/or an overshoot by Simon, P., Garnacho, F., Berlijn, S.M., Gockenbach, E.

“…In order to remove the present IEC 60060-1 and IEEE Standard 4 ambiguities in the evaluation of the test voltage when oscillations and/or an overshoot appear…”
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Fundamental investigations on some transformer liquids under various outdoor conditions by Fofana, I., Borsi, H., Gockenbach, E.

“…This paper deals with humidity uptake of some transformer liquids and its influence on electrical breakdown. The investigations were performed under some…”
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Assessment of the actual condition of the electrical components in medium-voltage networks by Xiang Zhang, Gockenbach, E.

“…Due to the large amount of electrical equipment and the costs of an individual diagnosis in medium-voltage networks, a general consideration of some…”
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Polarization and Depolarization Current measurements of oil impregnated paper insulation system under thermal runaway by Fofana, I, Hemmatjou, H, Farzaneh, M, Gockenbach, E, Borsi, H

“…In the current research work, systematic investigations on the influence of thermal transients on the Polarization and Depolarization Current (PDC)…”
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Dielectric behavior of insulating liquids at very low frequency by Shayegani Akmal, A.A., Borsi, H., Gockenbach, E., Wasserberg, V., Mohseni, H.

“…Dielectric spectroscopy in the wide frequency range of 1 mHz to 1 kHz has been used to study the polarization and conduction phenomena in insulating liquids…”
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Fundamental investigation on the thermal transfer coefficient due to arc faults by Xiang Zhang, Pietsch, G., Jiaosuo Zhang, Gockenbach, E.

“…In order to determine the pressure rise due to arc faults in electrical installations, the portion of energy heating the surrounding gas of fault arcs has to…”
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Investigations of diagnostic tools for insulation systems of high voltage rotating machines by Gockenbach, E, Farahani, M, Borsi, H

“…In this work the results of extensive investigations on the behaviour of a solid insulation system for rotating high voltage machines with thermal class F…”
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Specific investigations to quantify heavy damage causes on loading resistor modules by Fofana, I., Wasserberg, V., Borsi, H., Gockenbach, E., Farzaneh, M.

“…In this paper, premature damage to some static inverter loading resistor modules is analyzed. Furthermore, investigations were carried out to determine the…”
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