{"id":278,"date":"2022-10-11T14:35:43","date_gmt":"2022-10-11T12:35:43","guid":{"rendered":"https:\/\/unipower-se.tbwebsite.com\/?page_id=278"},"modified":"2024-01-31T13:51:56","modified_gmt":"2024-01-31T12:51:56","slug":"why-should-you-measure-power-quality","status":"publish","type":"page","link":"https:\/\/unipower-se.tbwebsite.com\/sv\/om-elkvalitet\/varfor-skall-man-mata-elkvalitet\/","title":{"rendered":"Varf\u00f6r skall man m\u00e4ta elkvalitet"},"content":{"rendered":"
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Varf\u00f6r skall man m\u00e4ta elkvalitet?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Orsakerna till att st\u00f6rningar uppst\u00e5r och f\u00f6rekommer i eln\u00e4tet \u00e4r m\u00e5nga. F\u00f6r att effektivt kunna \u00e5tg\u00e4rda och f\u00f6rebygga elkvalitetsrelaterade st\u00f6rningar och fenomen \u00e4r det en f\u00f6ruts\u00e4ttning att man vet hur det faktiskt ser ut.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\tGenom att m\u00e4ta och presentera m\u00e4tdata p\u00e5 ett \u00f6verblickbart s\u00e4tt har man f\u00f6ruts\u00e4ttningar att snabbt och effektivt f\u00e5 fram ett korrekt underlag f\u00f6r att fatta korrekta beslut.\n

\nTraditionellt har de flesta elkvalitetsm\u00e4tningar best\u00e5tt i direkt fels\u00f6kning och felavhj\u00e4lpning. Maskiner havererar, lampor blinkar, robotar stannar, elektronik sl\u00e5s ut. Oftast har man genom portabla m\u00e4tningar letat sig fram till st\u00f6rk\u00e4llan f\u00f6r att d\u00e4refter kunna \u00e5terg\u00e4rda eventuella fel.\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Kontinuerlig \u00f6vervakning av str\u00f6m kvaliteten<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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M\u00e5nga industrier och n\u00e4tbolag arbetar numera f\u00f6rebyggande med kontinuerlig \u00f6vervakning f\u00f6r att kunna uppt\u00e4cka st\u00f6rk\u00e4llor och feltillst\u00e5nd i n\u00e4tet innan konsekvenserna blir allt f\u00f6r l\u00e5ngtg\u00e5ende. Man utnyttjar elkvalitetssystemen som ett \u201dearly warning system\u201d f\u00f6r att snabbt uppt\u00e4cka exempelvis intermittenta jordfel innan de utvecklats till fullskaliga fel vars konsekvens annars skulle vara driftavbrott och produktionsstopp med stora kostnader som f\u00f6ljd.<\/p>

I takt med att elkvalitetsystemens analysm\u00f6jligheter blivit allt kraftfullare finns m\u00f6jligheter att arbeta med statistik och trender p\u00e5 ett s\u00e4tt som inte tidigare varit m\u00f6jligt. Genom att se hur exempelvis sp\u00e4nningsvariationer och \u00f6vertonshalter f\u00f6r\u00e4ndras p\u00e5 \u00e5rsbasis f\u00e5r man kontroll \u00f6ver hur n\u00e4tet f\u00f6rh\u00e5ller sig till aktuella planeringsniv\u00e5er.<\/p>

I m\u00e5nga sammanhang \u00e4r det av stort v\u00e4rde att g\u00f6ra en m\u00e4tning f\u00f6re en specifik \u00e5tg\u00e4rd eller ombyggnation i n\u00e4tet, f\u00f6r att efter f\u00f6r\u00e4ndringen f\u00f6lja upp med en verifieringsm\u00e4tning. D\u00e5 f\u00e5r man en effektiv kontroll \u00f6ver att f\u00f6r\u00e4ndringen f\u00e5tt avsedd effekt eller vilken inverkan den har haft.<\/p>

I samband med vindkraftsexpansionen och utbyggnaden av andra distribuerade kraftk\u00e4llor sker stora f\u00f6r\u00e4ndringar av eln\u00e4tet. F\u00f6r att f\u00e5 kontroll \u00f6ver f\u00f6r\u00e4ndringar i n\u00e4tet och att nya anl\u00e4ggningar inte medf\u00f6r nya st\u00f6rningar har det blivit vanligt att n\u00e4tbolag satsar p\u00e5 kontinuerlig \u00f6vervakning av eln\u00e4tet.<\/p>

Att m\u00e4ta \u00e4r att veta!<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Why should you measure power quality? There are various causes of power quality disturbances. To effectively correct and prevent disturbances and malfunctions, it is essential that you know the situation. Contact us By measuring and presenting data in a transparent way you get the proper basis for making correct decisions. Traditionally, most power quality measurements […]<\/p>","protected":false},"author":1,"featured_media":0,"parent":23,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-278","page","type-page","status-publish","hentry"],"yoast_head":"\nWhy should you measure power quality - Unipower AB<\/title>\n<meta name=\"description\" content=\"To effectively prevent power quality disturbances, it is essential that you measure. 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