0000000000408025

AUTHOR

A. De Simone

showing 3 related works from this author

Current and Voltage Behaviour During a Fault in a HV/MV System: Methods and Measurements

2015

When a single line to ground fault happens on the MV side of a HV/MV system, only a small portion of the fault current is injected into the ground by the ground-grid of the faulty substation. In fact the fault current is distributed between grounding electrodes and MV cables sheaths. In systems with isolated neutral or with resonant earthing this may be sufficient to provide safety from electric shock. Experimental measurements were performed on a real MV distribution network: a real single line to ground fault was made and fault currents were measured in the faulty substation and in four neighbouring substations. In this paper the problem of fault current distribution is introduced, the te…

Engineeringelectrical and electronic engineeringGlobal earthing systemCurrent distribution; Electrical safety; Global earthing systems; grounding; Power distribution faults; Single line to ground faultHardware_PERFORMANCEANDRELIABILITYFault (power engineering)Fault current limiterElectronic engineeringmedicineGlobal earthing systemscurrent distribution; electrical safety; global earthing systems; grounding; power distribution faults; single line to ground fault; electrical and electronic engineering; energy engineering and power technologyenergy engineering and power technologyCurrent distributionPower distribution faultsElectrical safetySingle line to ground faultElectric shockGroundbusiness.industryElectrical engineeringgroundingSingle linemedicine.diseaseEarthing systemSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaCurrent (fluid)businessPower distribution faultVoltage
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The Global Grounding System: Definitions and guidelines

2015

The present paper presents the preliminary results of the ongoing Italian METERGLOB project on the contribution given by the exposed conductive parts to a Global Grounding System. One of the expected results of METERGLOB is to carry out guidelines for the identification of a Global Grounding System. These guidelines must be defined on the basis of the definitions and methods present in the current international standards on grounding and safety. In the paper some definitions and elements to be taken into account for the identification of a Global Grounding System are given.

Engineeringbusiness.industryGroundMechanical engineeringEnergy Engineering and Power TechnologyDefinitionsDefinitionGuidelinesGuidelineEarthing systemGlobal Grounding System; Ground Fault; Guidelines; DefinitionsGlobal Grounding SystemSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaIdentification (information)Definitions; Global Grounding System; Ground Fault; Guidelines; Electrical and Electronic Engineering; Energy Engineering and Power TechnologySettore ING-IND/31 - ElettrotecnicaRisk analysis (engineering)Ground FaultElectrical and Electronic Engineeringbusiness
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Influence of LV neutral grounding on global earthing systems

2015

International Standards define a Global Earthing System as an earthing net created interconnecting local Earthing Systems (generally through the shield of MV cables and/or bare buried conductors). In Italy, the regulatory authority for electricity and gas requires distributors to guarantee the electrical continuity of LV neutral conductor. This requirement has led to the standard practice of realizing “reinforcement groundings” along the LV neutral conductor path and at users’ delivery cabinet. Moreover, in urban high-load scenarios (prime candidates to be part of a Global Earthing System), it is common that LV distribution scheme creates, through neutral conductors, an effective connection…

Engineeringelectrical and electronic engineeringmaxwell subareas method020209 energyEnergy Engineering and Power TechnologyGround and neutralindustrial and manufacturing engineering02 engineering and technologyRegulatory authorityGlobal earthing system (GES) global grounding system (GGS) ground potential LV neutral conductor maxwell subareas method.control and systems engineeringlv neutral conductorShield0202 electrical engineering electronic engineering information engineeringglobal earthing systemmaxwell sub-areas methodGlobal earthing system (GES)Electrical conductorglobal grounding system (GGS)Groundbusiness.industryGES; GGS; global earthing system; global grounding system; ground potential; lv neutral conductor; maxwell sub-areas method; control and systems engineering; industrial and manufacturing engineering; electrical and electronic engineeringElectrical engineeringGlobal Earting SystemGESglobal grounding systemground potentialEarthing systemGGSGlobal earthing system (GES); global grounding system (GGS); ground potential; LV neutral conductor; maxwell subareas method; Control and Systems Engineering; Industrial and Manufacturing Engineering; Electrical and Electronic EngineeringSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaGlobal Earting System; GES; Global Grounding System; GGS; Ground potential; Maxwell Sub-areas Method; LV neutral conductorHigh loadElectricityGES; GGS; Global earting system; global grounding system; ground potential; lv neutral conductor; maxwell sub-areas method; electrical and electronic engineering; energy engineering and power technologybusiness
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