14 uppsatser
… klagomål angående elkvalitén. Elkvalitetsproblemet är aven typ som kallas flicker eller flimmer på svenska. Ljusutbytet från glödlampor ärspeciellt känsliga för vissa spänningsvariationer som får ljuset att uppfattas somflimrande. Ett sådant ljus kan vara mycket störande och …
… to the results of a number of measurements. Also, the power quality parameters flicker, harmonics, unbalance and voltage variations are compared to regulated limits. Long term voltage variations and flicker emission levels have been calculated from simulation results obtained in …
… variations should therefore not cause any real problems.The examination of flicker, which are fast voltage variations, has been done usingcalculations based on flicker coefficients obtained from the windmill manufactures.The highest flicker emission calculated is 0.15 and occurs …
… variations should therefore not cause any real problems.The examination of flicker, which are fast voltage variations, has been done usingcalculations based on flicker coefficients obtained from the windmill manufactures.The highest flicker emission calculated is 0.15 and occurs …
… that sometimes can be seen in the picture. This disturbance, here called flicker, seem to be generated by the Stirling micro cooler since the frequency of the flicker follows the frequency of the cooler. The cause of this flicker is unknown despite numerous of studies. The goal …
… med datoriserade bildspel utformade i fyra kategorier av förändring. Rensinks flicker paradigm användes som förändringsmetod. Resultaten visade att; det var lättare att upptäcka en förändring som inte består av en bild av en person än en med en bild av en person och det är …
… The purpose of this investigation is to study fast electrical fluctuations (flicker) as a result of start-up currents for single as well as multiple heat pumps on the same electrical station and from this evaluate whether there will be any problems installing heat pumps.
… cause some problems for the close environment. One of the problems is shadow flickering. When the sun is low and the wind blows in a direction so that the rotor blades are positioned at right angles to the sunbeams and ”cut” the sunbeams off. The beholder will see this as a …
Stil i text på webben
… is about 25 percent slower than reading from paper. This because screens ? flicker ? have lower resolution than paper All text with the purpose of being read from a screen should be adjusted to the reader’s physical condition. The theories above were studied and interviews were …
… wind farm would have on the power grid in the form of electrical disturbances (flicker etc.), need for new investment and raised operational cost. To allow the connection of the wind farm technical solutions (new lines, power stations and grid reinforcements) have been …
Upplösning av polemiken mellan illusion och förnuft
… of the Enlightenment saw as something oppose to, or even threatening to, their flickering Torch.
… are slow voltage fluctuations, rapid voltage changes, voltage unbalance and flicker.
Utveckling av modell för dokumentation och elkvalitetsberäkningar
… are slow voltage fluctuations, rapid voltage changes, voltage unbalance and flicker.
Flimmer (eng. Flicker), beskrivs av standard EN 50160:1999 som ett visuellt intryck av instabilitet orsakat av ljusintryck som varierar intensitetsmässigt eller spektralt över tiden. Flimmer är alltså en variation i ljusstyrka som orsakas av en ändring i spänningsnivån …
