Publications de Emanuel Petrache

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Lightning-induced voltages in power and communication systems are nowadays one of the main causes of power quality and electromagnetic compatibility. In recent years, due to the increasing demand by customers for good quality in the power supply along with ...

In this paper, we present a review of theoretical methods to compute lightning induced currents and voltages on buried cables. The evaluation of such induced disturbances requires the calculation of the electric field produced by lightning along the cable ...

We present a review of theoretical methods to compute lightning-induced currents and voltages on buried cables. The evaluation of such induced disturbances requires the calculation of the electric field produced by lightning along the cable path. We show t ...

This paper presents experimental results obtained at the International Center for Lightning Research and Testing (ICLRT) at Camp Blanding, Florida during the smnmers of 2002 and 2003. Currents induced by triggered and natural lightning events were measured ...

This paper presents an analysis of lightning return strokes to tall structures. The interaction of lightning with a tall structure is modeled using the antenna theory. The finite ground conductivity as well as the buried grounding system of the tall struct ...

The aim of this paper is to present an experimental validation of a frequency- domain approach to the solution of the lightning electromagnetic field-to- buried cable coupling equations. The coupling to the inner conductor is evaluated using the concept of ...

The evaluation and the analysis of the lightning electromagnetic pulse (LEMP) response of distribution networks require the availability of accurate models of LEMP-illuminated lines and their implementation into software tools able to calculate lightning-induced electromagnetic transients in distribution systems having complex configuration. This paper deals indeed with a computer code, LIOV (lightning induced overvoltage code), and with two interfaces recently realized between it and (a) the DCG/EPRI EMTP9

In this paper, we investigate the effect of periodically-grounded shielding wires and surge arresters on the attenuation of lightning-induced voltages. We discuss the adequacy of the commonly made simplification of assuming the shielding wire at ground potential, instead of being treated as one of the conductors of the multiconductor system. We also compare then the mitigation effect of shielding wires with that achievable by the insertion of surge arresters along the line. The computation results are first

We present in this paper experimental results obtained at the International Center for Lightning Research and Testing (ICLRT), Camp Blanding, Florida, where currents induced by triggered and natural lightning events were measured at one end of a shielded buried cable, both in the cable shield and in the inner conductor. The horizontal magnetic field was also measured. For the natural lightning events, the recorded waveforms are correlated with the data obtained by the U.S. National Lightning Detection Netwo

Current from nearby rocket-triggered lightning that flowed through the soil and into an unenergized test power distribution line was studied based on experimental data acquired in 2003 at the International Center for Lightning Research and Testing in Flori ...

Emanuel Petrache

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Lightning electromagnetic field coupling to overhead transmission line networks and to buried cables

Lightning induced disturbances in buried cables - Part I: Theory

Lightning-induced currents in buried coaxial cables

Lightning induced disturbances in buried cables - Part II: Experiment and model validation

Lightning strikes to elevated structures: influence grounding conditions on currents and electromagnetic fields

Lightning-induced currents in buried coaxial cables: A frequency-domain approach and its validation using rocket-triggered lightning

Lightning-induced voltages on complex distribution systems: models, advanced software tools and experimental validation

Mitigation of Lightning-Induced Overvoltages in Medium Voltage Distribution Lines by Means of Periodical Grounding of Shielding Wires and of Surge Arresters: Modeling and Experimental Validation

Measurement of lightning-induced currents in an experimental coaxial buried cable

Lightning Currents Flowing in the Soil and Entering a Test Power Distribution Line Via Its Grounding

Simultaneous Measurements of Return Stroke Current, Electric and Magnetic Fields at Three Distance Ranges Associated with Lightning Strikes to The CN Tower

Influence of the finite ground conductivity on the transient response to lightning of a tower and its grounding

Suggestion on Experimental Estimation of Current Portion Measured by Rogowski Coil at the 474 m Level of the CN Tower

On Return-Stroke Currents and Remote Electromagnetic Fields Associated with Lightning Strikes to Tall Structures. Part II: Experiment and Model Validation

On the effect of possible reflections at the return stroke wavefront on radiated fields from lightning strikes to tall structures

Lightning multiplicity at the CN Tower in Toronto as recorded by six different instruments

Estimation of Lightning-Caused Stresses in A MV Distribution Line Using A Three-Wire Approach

Three-Station EM Field Measurements of CN Tower Lightning Strikes

Testing of the LIOV-EMTP96 Code for Computing Lightning-Induced Currents on Real Distribution Lines: Triggered-Lightning Experiments

An experiment to validate a theory for the calculation of transients induced by external electromagnetic fields on overhead transmission line networks