{"id":47366,"date":"2022-03-11T10:54:50","date_gmt":"2022-03-11T10:54:50","guid":{"rendered":"https:\/\/www.dewetron.com\/news\/flicker-in-elektrischen-systemen\/"},"modified":"2025-02-04T13:54:02","modified_gmt":"2025-02-04T13:54:02","slug":"flicker-in-elektrischen-systemen","status":"publish","type":"post","link":"https:\/\/www.dewetron.com\/de\/news\/flicker-in-elektrischen-systemen\/","title":{"rendered":"Flicker in elektrischen Systemen"},"content":{"rendered":"<div id=\"\" class=\"wp-block-text-columns margin-bottom-small\n      \">\n  <div class=\"container\">\n    <div class=\"row justify-content-center\">\n              <div class=\"col-12\">\n          <h2><\/h2>\n          <div class=\"content-size-normal\">\n            <p>Stellen Sie sich vor, Sie setzen sich nach einem anstrengenden Arbeitstag auf Ihre Couch, um gem\u00fctlich einen Film im Fernsehen zu schauen. Pl\u00f6tzlich beginnt Ihr Fernseher zu rauschen und die Deckenleuchte zu flackern. Nein, Sie befinden sich nicht mitten in einem neuen Gruselfilm \u2013 Sie bemerken gerade nur die Auswirkungen von Flicker.<\/p>\n\n          <\/div>\n        <\/div>\n          <\/div>\n  <\/div>\n<\/div>\n\n\n<div id=\"\" class=\"wp-block-text-columns margin-bottom-small\n      \">\n  <div class=\"container\">\n    <div class=\"row justify-content-center\">\n              <div class=\"col-12\">\n          <h2>Flicker \u2013 Begriffserkl\u00e4rung<\/h2>\n          <div class=\"content-size-normal\">\n            <p>Unter Flicker versteht man in der Elektrotechnik kurzzeitige Spannungsschwankungen im Stromnetz. Dies kann dazu f\u00fchren, dass Leuchtmittel zu flackern beginnen, da die Helligkeit proportional zur anliegenden Spannung ist. Auch andere technische Ger\u00e4te reagieren empfindlich auf Spannungsschwankungen. Netzteile oder TV-Receiver k\u00f6nnen durch Flicker in ihrer Funktion gest\u00f6rt oder im Extremfall sogar zerst\u00f6rt werden.<br \/>\n&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-27656\" title=\"flicker_d\" src=\"https:\/\/www.dewetron.com\/app\/uploads\/2024\/09\/flicker_d.png\" alt=\"flicker\" width=\"600\" height=\"400\" \/><\/p>\n<p style=\"text-align: center;\"><em>So k\u00f6nnte ein Flicker-Signal aussehen<\/em><\/p>\n<p>&nbsp;<br \/>\nNicht zu vernachl\u00e4ssigen ist auch der psychologische Effekt von Flicker. Einige Personen nehmen ein flackerndes Licht kaum wahr, andere empfinden es jedoch als sehr st\u00f6rend. Eine sensitive Person, die den ganzen Tag in einem B\u00fcro mit flackerndem Licht arbeitet, kann daher schneller erm\u00fcden oder sogar Kopfschmerzen entwickeln.<\/p>\n<p>Heutzutage haben viele elektronische Ger\u00e4te Mechanismen zum Ausgleich von Flicker eingebaut. Da sich solche Ma\u00dfnahmen aber schnell in Preis und Gr\u00f6\u00dfe bemerkbar machen, findet man auch heute noch regelm\u00e4\u00dfig flickeranf\u00e4llige Ger\u00e4te. Des Weiteren k\u00f6nnen Spannungsschwankungen ein solches Ausma\u00df annehmen, dass vorhandene Schutzmechanismen nicht mehr greifen. Genau deshalb ist und bleibt Flicker eine der wichtigsten Kenngr\u00f6\u00dfen zur Bewertung der Netzqualit\u00e4t.<\/p>\n\n          <\/div>\n        <\/div>\n          <\/div>\n  <\/div>\n<\/div>\n\n\n<div id=\"\" class=\"wp-block-text-columns margin-bottom-small\n      \">\n  <div class=\"container\">\n    <div class=\"row justify-content-center\">\n              <div class=\"col-12\">\n          <h2>Entstehung von Flicker<\/h2>\n          <div class=\"content-size-normal\">\n            <p>Die Ursachen f\u00fcr kurzzeitige Spannungsschwankungen k\u00f6nnen vielf\u00e4ltig sein. So k\u00f6nnte beispielsweise Ihr Nachbar einen gro\u00dfen Elektromotor (z.B. eine Kreiss\u00e4ge) anwerfen. Dadurch flie\u00dft kurzzeitig \u00fcberdurchschnittlich viel elektrische Leistung in den Motor, was zu einer Absenkung der Spannung in der Umgebung f\u00fchrt. Um dies zu vermeiden, haben viele moderne Elektromotoren eine <em>Soft-Start-Funktion<\/em> eingebaut.<\/p>\n<p>Aber auch elektronische Bauteile, die kaum Leistung ben\u00f6tigen, k\u00f6nnen zur Entstehung von Flicker beitragen. Der Grund daf\u00fcr ist, dass an das Netz angeschlossene Elektroger\u00e4te auch auf das Stromnetz zur\u00fcckwirken. So w\u00e4re es beispielsweise m\u00f6glich, dass ein K\u00fcchenmixer unregelm\u00e4\u00dfige Spannungssignale in das Stromnetz zur\u00fccksendet. In Summe k\u00f6nnen dadurch viele kleine Ger\u00e4te einen deutlichen Einfluss auf das Stromnetz haben.<\/p>\n<p>Auch Kraftwerke, allen voran Windkraftanlagen, k\u00f6nnen Flicker im Stromnetz erzeugen. Dies liegt an der Entstehung von <em>Harmonischen<\/em> in den Kraftwerken. Mehr dazu finden Sie in unserem Blogpost \u00fcber <a href=\"https:\/\/www.dewetron.com\/de\/news\/harmonische-in-windkraftanlagen-teil-1\/\"><em>Harmonische in Windkraftanlagen<\/em><\/a>.<\/p>\n\n          <\/div>\n        <\/div>\n          <\/div>\n  <\/div>\n<\/div>\n\n\n<div id=\"\" class=\"wp-block-text-columns margin-bottom-small\n      \">\n  <div class=\"container\">\n    <div class=\"row justify-content-center\">\n              <div class=\"col-12\">\n          <h2>Klassifizierung und Messung<\/h2>\n          <div class=\"content-size-normal\">\n            <p>Zur Messung von Flicker ist immer eine psychologische Komponente zu ber\u00fccksichtigen. Diese wird in der Berechnung meist durch eine empirisch ermittelte <em>Flickerkurve <\/em>ber\u00fccksichtigt. Diese Flickerkurve gibt an, wie stark Lichtschwankungen im Mittel von einer Person wahrgenommen werden. Dabei wird auch auf Frequenz und St\u00e4rke der Spannungsschwankung eingegangen.<\/p>\n<p>Flicker wird oft in sogenannten <em>Wahrnehmbarkeitseinheiten <\/em><strong><em>P <\/em><\/strong>gemessen. Hierbei unterschiedet man drei Arten:<\/p>\n<ul>\n<li><strong>P_inst<\/strong>: momentane Flickerwahrnehmung<\/li>\n<li><strong>P_st<\/strong>: Kurzzeit-Flickerst\u00e4rke. Diese wird \u00fcber einen Zeitraum von 10 Minuten berechnet.<\/li>\n<li><strong>P_lt<\/strong>: Langzeit-Flickerst\u00e4rke. Diese wird \u00fcber einen Zeitraum von 2 Stunden berechnet.<\/li>\n<\/ul>\n<p>Flicker ist ein Ph\u00e4nomen, das sich in sehr kurzen Spannungsschwankungen \u00e4u\u00dfert. Deshalb ben\u00f6tigt es auch hochwertige Messinstrumente, um Flicker akkurat messen zu k\u00f6nnen. Auch sollte die Messung in kontrollierter Umgebung geschehen, denn elektrische Bauteile k\u00f6nnen sich je nach Temperatur oder Belastung unterschiedlich verhalten. Nichtsdestotrotz sollte die Messumgebung den wirklichen Einsatzort des Ger\u00e4ts m\u00f6glichst gut widerspiegeln.<\/p>\n\n          <\/div>\n        <\/div>\n          <\/div>\n  <\/div>\n<\/div>\n\n\n<div id=\"\" class=\"wp-block-text-columns margin-bottom-none\n      \">\n  <div class=\"container\">\n    <div class=\"row justify-content-center\">\n              <div class=\"col-12\">\n          <h2>OXYGEN &#8211; Perfekt zur Ermittlung von Flicker<\/h2>\n          <div class=\"content-size-normal\">\n            <p><a href=\"https:\/\/www.dewetron.com\/de\/produkte\/software\/oxygen-uebersicht\/\">OXYGEN<\/a> ist eine Software zur Datenauswertung, die von DEWETRON entwickelt wird. Ein Fokus wurde hierbei auf eine intuitive und einfache Bedienung gelegt. Trotzdem f\u00e4llt der Funktionsumfang von OXYGEN gro\u00df aus. Sie k\u00f6nnen aus einer Vielzahl von Softwaremodulen w\u00e4hlen, je nachdem was zu Ihren Bed\u00fcrfnissen passt.<\/p>\n<p>Zur Analyse von Flickeremissionen bietet sich OXYGENs Power-Advanced-Feature an. Dieses erm\u00f6glicht Ihnen das Auswerten von Strom- und Spannungsschwankungen nach den Normen IEC 61000-4-15 und 61400-21. Eine von vielen Funktionen ist dabei nat\u00fcrlich die Berechnung der oben genannten P-Werte. N\u00e4here Details zu unserem Power-Advanced-Feature finden Sie in diesem <a href=\"https:\/\/www.dewetron.com\/de\/news\/oxygens-power-advanced-feature\/\">Blogpost<\/a> oder dem zugeh\u00f6rigen <a href=\"https:\/\/www.youtube.com\/watch?v=lo_nDqs0cFI&amp;t=273s\">Video-Tutorial<\/a>.<br \/>\n&nbsp;<\/p>\n\n          <\/div>\n        <\/div>\n          <\/div>\n  <\/div>\n<\/div>\n\n\n<div id=\"\" class=\"wp-block-claim-links-gray margin-bottom-none\">\n  <div class=\"container-fluid bg-container py-7 bg-darkgray\">\n    <div class=\"container position-relative\">\n      <div class=\"claim col-12 col-lg-8 offset-lg-2 text-center text-light\">\n                  <h3 class=\"h3 text-uppercase\">SIE M\u00d6CHTEN MEHR \u00dcBER OXYGEN ERFAHREN?<\/h3>\n                                  <div class=\"link-button d-flex flex-wrap mt-4 justify-content-center gap-4\">\n                          <a class=\"dewetron-btn\" 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Verteilte Messungen mit OXYGEN-NET\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      Mehr lesen\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                          <div class=\"news-card swiper-slide col-lg-4 col-12 bg-light \">\n                <a class=\"\" href=\"https:\/\/www.dewetron.com\/de\/news\/new-trion3-24xx-acc-lv-modules\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2026\/02\/TRION3-24xx_ACC-LV_header.jpg\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div 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href=\"https:\/\/www.dewetron.com\/de\/news\/oxygen-go-app-for-mobile-devices\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2026\/02\/OXYGEN-Go-Easy-Connectivity-teststand.png\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">Software-Info<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      OXYGEN-GO App f\u00fcr Ihr Mobilger\u00e4t\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      Mehr lesen\n                    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