Search Results - "Lindell, Elisabeth"

Influence of rise time on partial discharge extinction voltage at semi-square voltage waveforms by Lindell, E., Bengtsson, T., Blennow, J., Gubanski, S.M.

“…This work presents measurements of the partial discharge (PD) extinction voltage in three different types of test objects, using semi-square voltages with 2 ¿s…”
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Effect of Different Types of Overvoltage Protective Devices Against Vacuum Circuit-Breaker-Induced Transients in Cable Systems by Lindell, Elisabeth, Liljestrand, Lars

“…Transient overvoltages due to circuit-breaker switching may occur if certain conditions regarding system layout and type of switching operations are fulfilled…”
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Efficiency of Surge Arresters as Protective Devices Against Circuit-Breaker-Induced Overvoltages by Liljestrand, Lars, Lindell, Elisabeth

“…The possible occurrence of transient overvoltages depends on the interaction between different components in a power system. In a cable system, circuit breaker…”
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Dependence of the Chopping Current Level of a Vacuum Interrupter on Parallel Capacitance by Dullni, Edgar, Lindell, Elisabeth, Liljestrand, Lars

“…The distribution of chopping currents of a vacuum circuit breaker using CuCr25 contact material was measured in a laboratory circuit consisting of a…”
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Stochastic detection of partial discharges by Bengtsson, Tord, Lindell, Elisabeth, Hammarstrom, Thomas

“…The traditional method to detect partial discharges relies heavily on the use of high-pass filters. Whereas this is a very effective approach for normal power…”
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Evaluation of a PD Measuring System for Repititive Steep Voltage Waveforms by Lindell, Elisabeth, Bengtsson, Tord, Blennow, Jörgen, Gubanski, Stanislaw

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Measurement of partial discharges at rapidly changing voltages by Lindell, E., Bengtsson, T., Blennow, J., Gubanski, S.M.

“…This work presents a measuring system for PDs at repetitive voltages with short rise times, based on a coupling device adapted for this kind of voltages and a…”
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Evaluation of a PD measuring system for repetitive steep voltage waveforms by Lindell, E, Bengtsson, T, Blennow, Jörgen, Gubanski, S M

“…Measurements of partial discharges (PDs) at high frequency voltages is important but not a straightforward task. In this paper a PD measuring system developed…”
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Simulation study and field experience from switching of transformer with minimal inrush current by Lindell, E., Bianco, A., Halén, S., Taborelli, C.

“…At operation of circuit breakers in electric power grids, transient voltages and currents occur before steady state conditions are reached. Minimizing such…”
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Study of Partial Discharges at the Positive and Negative Voltage Flanks of Semi-Square Voltages by Lindell, E., Bengtsson, T., Blennow, J.

“…Experiences from the use of a measuring system for detection of partial discharges (PDs) at a repetitive, unipolar, square-like voltage with a rise time of 2.0…”
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Vacuum circuit breaker and transformer interaction in a cable system by Liljestrand, L, Lindell, E, Bormann, D, Roy, C, Dullni, E

“…Vacuum circuit breakers can cause repetitive transient overvoltages with steep fronts in some cases, depending on the combination of the system configurations…”
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Statistical time distribution of partial discharges under semi-square voltages by Lindell, E., Bengtsson, T., Blennow, J.

“…The conventional approach to detect partial discharges (PDs) relies on discrimination of PDs from the applied voltage, based on differences in their respective…”
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