Uppsatser om medium voltage

17 uppsatser · sida 1 av 2

Voltage Sags Indices and Statistics

Examensarbete, avancerad nivå · Chalmers tekniska högskola

… three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab …

Pilotinstallation av fast och fjärravläst nätstationsmätning

Identifiering av för- och nackdelar med nätstationsmätning, Mälarenergi Elnät AB

Examensarbete, avancerad nivå · Uppsala universitet

… During 2012, Mälarenergi Elnät AB had a total electrical network loss (both medium and low voltage network losses included) of three to four percent of their total distributed electrical volume. Converting this energy volume into a monetary figure this accounts for a loss of …

Annons

Bestämning av jordmodul för kringfyllnadsmaterial runt rörbroar

Examensarbete, avancerad nivå · Chalmers tekniska högskola

… three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab …

Massundanträngning i samband med pålning i lera

Examensarbete, avancerad nivå · Chalmers tekniska högskola

… three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab …

Studie av 3-dimensionella sidoeffekter vid etappvis schaktning i Götatunneln, J2

Examensarbete, avancerad nivå · Chalmers tekniska högskola

… three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab …

Identifiering av saneringmetoder med översiktlig bakgrunds- information - En studie av förorenad industrimark på fastigheten Elektro 6 i Gullspång kommun

Examensarbete, avancerad nivå · Chalmers tekniska högskola

… three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab …

How to build a rein tension meter

Masteruppsats · SLU

… cable. Three different sizes of steel, 140*40*1 mm (large), 110*35*1 mm (medium) and 90*30*1.5 mm (small) and two different types of strain gauges, pairs of parallel strain gauges and pairs of perpendicular strain gauges, were tested. Power and logging of data was supplied …

Framtidens driftcentral

En analys av den framtida driften av ett svenskt elna’t

Examensarbete, avancerad nivå · Uppsala universitet

… years. The report focuses on DC’s that operate electrical grids at low- and medium voltage level. For a concrete way to determine how the DC will change over time the different operational processes that constitute the ope- ration of a DC were defined. Subsequently the changes …

Riskmodell för kabelsträckningar i mellanspänningsnätet i Sverige

Examensarbete, avancerad nivå · Uppsala universitet

… knowledge the purpose of this master thesis was to develop a risk model for medium voltage underground cables. The risk model consisted of two parts; a statistical model to determine the probability of failure for different types of cables, and a model to determine the …