{"id":14104,"date":"2023-09-18T00:07:52","date_gmt":"2023-09-18T00:07:52","guid":{"rendered":"https:\/\/staging.rayzeek.com\/?p=14104"},"modified":"2023-12-26T08:44:13","modified_gmt":"2023-12-26T08:44:13","slug":"what-is-harmonic","status":"publish","type":"post","link":"https:\/\/staging.rayzeek.com\/ro\/glossary\/what-is-harmonic\/","title":{"rendered":"Ce este armonica"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-what-is-harmonic\">Ce este armonica<\/h2>\n\n\n<p class=\"wp-block-paragraph\">\u00cen industria iluminatului, termenul \u201carmonic\u0103\u201d se refer\u0103 la o component\u0103 a unui semnal periodic distorsionat sau nesinusoidal care are o frecven\u021b\u0103 ce reprezint\u0103 un multiplu \u00eentreg par diferit de zero al frecven\u021bei fundamentale a semnalului. Armonicile pot ap\u0103rea \u00een curen\u021bi sau tensiuni \u0219i sunt cauzate \u00een mod tipic de sarcini neliniare din sistemul electric.<\/p>\n<div class=\"insert_portfolio_outer_wrapper\"><h3>L\u0103sa\u021bi-v\u0103 inspirat de portofoliile de senzori de mi\u0219care Rayzeek.<\/h3><p>Nu g\u0103si\u021bi ceea ce c\u0103uta\u021bi? Nu v\u0103 face\u021bi griji. Exist\u0103 \u00eentotdeauna modalit\u0103\u021bi alternative de a v\u0103 rezolva problemele. Poate v\u0103 poate ajuta unul dintre portofoliile noastre.<\/p><div class = \"insert_portfolio_buttons\"><div class = \"insert_portfolio_button_wrapper\"><div><a href = \"https:\/\/www.rayzeek.com\/product-category\/motion-sensors\"><p>Senzori de mi\u0219care PIR<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/motion-sensor-switches\"><p>\u00centrerup\u0103toare cu senzor de mi\u0219care<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/occupancy-vacancy-sensors\"><p>Senzori de prezen\u021b\u0103<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/products\/rz050\"><p>Senzor de mi\u0219care pentru aer condi\u021bionat<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/product-category\/motion-sensor-light-strip\"><p>Benzi LED cu senzor de mi\u0219care<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/product-category\/dc-sensor-dimmer\"><p>Senzori de mi\u0219care \/ variatoare DC de joas\u0103 tensiune<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/product-category\/wireless-motion-sensors\"><p>Kituri de senzori de mi\u0219care f\u0103r\u0103 fir<\/p><\/a><\/div><\/div><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Armonicile pot duce la diverse probleme \u00een industria iluminatului. O problem\u0103 comun\u0103 este p\u00e2lp\u00e2irea luminii, care poate ap\u0103rea atunci c\u00e2nd exist\u0103 fluctua\u021bii rapide ale curentului de sarcin\u0103 sau ale tensiunii, \u00een special la utilaje. Exemple de utilaje care pot provoca p\u00e2lp\u00e2irea luminii includ motoarele mari \u00een timpul pornirii, utilajele cu cicloconvertoare, cum ar fi ac\u021bion\u0103rile laminoarelor \u0219i ma\u0219inile de extrac\u021bie pentru mine, precum \u0219i ma\u0219inile care utilizeaz\u0103 convertoare statice de frecven\u021b\u0103, cum ar fi motoarele de CA \u0219i cuptoarele cu arc electric.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O alt\u0103 problem\u0103 cauzat\u0103 de armonici este supra\u00eenc\u0103lzirea transformatoarelor \u0219i declan\u0219area \u00eentreruptoarelor. Acest lucru se \u00eent\u00e2mpl\u0103 atunci c\u00e2nd sarcinile neliniare absorb curent \u00een impulsuri bru\u0219te, mai degrab\u0103 dec\u00e2t \u00eentr-un mod sinusoidal lin. Curen\u021bii armonici genera\u021bi de aceste sarcini neliniare pot circula \u00eenapoi \u00een alte p\u0103r\u021bi ale sistemului electroenergetic, av\u00e2nd ca rezultat supra\u00eenc\u0103lzirea transformatoarelor \u0219i declan\u0219area \u00eentreruptoarelor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pentru a m\u0103sura prezen\u021ba armonicilor, se utilizeaz\u0103 adesea distorsiunea armonic\u0103 total\u0103 (THD). THD reprezint\u0103 suma tuturor efectelor armonice \u0219i este m\u0103surat\u0103 de obicei p\u00e2n\u0103 la al 50-lea multiplu al frecven\u021bei fundamentale (60 Hz \u00een SUA) sau la 3 kHz. Se recomand\u0103 ca efectele armonice de tensiune s\u0103 fie mai mici de 8 procente \u00een raport cu frecven\u021ba fundamental\u0103, iar valorile de peste 8 procente ar trebui investigate suplimentar.<\/p>\n<div class=\"insert_inquiry_outer_wrapper\"><h3>C\u0103uta\u021bi solu\u021bii de economisire a energiei activate de mi\u0219care?<\/h3><p>Contacta\u021bi-ne pentru senzori de mi\u0219care PIR comple\u021bi, produse de economisire a energiei cu activare la mi\u0219care, \u00eentrerup\u0103toare cu senzor de mi\u0219care \u0219i solu\u021bii comerciale de prezen\u021b\u0103\/vacan\u021b\u0103.<\/p><div class = \"insert_inquiry_buttons\"><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email\"><div><a href = \"mailto:info@rayzeek.com\"><p>Trimite\u021bi un e-mail<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email_contact\"><div><a href=\"https:\/\/www.rayzeek.com\/contact\"><p>Formular de contact<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_chat chat_jump\"><div><a href=\"#\"><p>Chat online<\/p><\/a><\/div><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-group glossary_faqs\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h2 class=\"wp-block-heading\" id=\"h-frequently-asked-questions\">\u00centreb\u0103ri frecvente<\/h2>\n\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-what-causes-electrical-harmonics\">Ce cauzeaz\u0103 armonicile electrice<\/h3><\/div><\/div>\n\n\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Armonicile apar atunci c\u00e2nd exist\u0103 sarcini neliniare care convertesc tensiunea de linie de CA \u00een CC. Aceste armonici p\u0103trund \u00een sistemul electric din cauza prezen\u021bei dispozitivelor electronice de comuta\u021bie neliniare, cum ar fi convertoarele de frecven\u021b\u0103 (VFD), sursele de alimentare pentru calculatoare \u0219i sistemele de iluminat eficiente energetic.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-does-led-lighting-cause-harmonics\">Iluminatul cu LED cauzeaz\u0103 armonici<\/h3><\/div><\/div>\n\n\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Odat\u0103 cu instalarea iluminatului cu LED, exist\u0103 posibilitatea apari\u021biei distorsiunii armonice provenite de la sarcin\u0103. Aceast\u0103 distorsiune poate duce la solicitarea echipamentelor \u0219i a re\u021belei de distribu\u021bie electric\u0103, av\u00e2nd ca rezultat cheltuieli de \u00eentre\u021binere mai mari \u0219i timpi de nefunc\u021bionare. Este important de notat c\u0103, uneori, efectele solicit\u0103rii armonice pot s\u0103 nu fie evidente p\u00e2n\u0103 c\u00e2nd nu are loc o defectare complet\u0103 a echipamentului.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-how-does-harmonics-affect-power-quality\">Cum afecteaz\u0103 armonicile calitatea energiei electrice<\/h3><\/div><\/div>\n\n\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Curen\u021bii armonici au un impact negativ asupra calit\u0103\u021bii energiei electrice, provoc\u00e2nd o cre\u0219tere a curentului t.d.a. (r.m.s.) \u00een sistemele electrice. Aceasta, la r\u00e2ndul s\u0103u, duce la o deteriorare a calit\u0103\u021bii tensiunii de alimentare. \u00cen plus, armonicile supun re\u021beaua electric\u0103 la solicit\u0103ri \u0219i au poten\u021bialul de a deteriora echipamentele. De asemenea, ele pot perturba func\u021bionarea normal\u0103 a dispozitivelor \u0219i pot genera costuri de exploatare mai ridicate.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-how-do-you-check-harmonics-in-a-power-system\">Cum se verific\u0103 armonicile \u00eentr-un sistem electroenergetic<\/h3><\/div><\/div>\n\n\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">M\u0103sura\u021bi distorsiunea armonic\u0103 total\u0103 (THD) utiliz\u00e2nd un cle\u0219te ampermetric care are capacitatea de a indica armonicile. Asigura\u021bi-v\u0103 c\u0103 THD pentru tensiune nu dep\u0103\u0219e\u0219te 5%, \u00een timp ce THD pentru curent poate fi considerabil mai mare. Pentru a ob\u021bine mai multe informa\u021bii despre amploarea \u0219i impactul fiec\u0103rei armonici, utiliza\u021bi un analizor de calitate a energiei electrice.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-does-harmonics-affect-voltage\">Armonicile afecteaz\u0103 tensiunea<\/h3><\/div><\/div>\n\n\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Tensiunile armonice, care sunt produse atunci c\u00e2nd curen\u021bii armonici circul\u0103 \u00eempotriva impedan\u021bei armonicii, pot duce la supratensiuni notabile. S-a observat c\u0103 aceste supratensiuni cauzeaz\u0103 func\u021bion\u0103ri defectuoase ale echipamentelor, condensatoarele fiind deosebit de vulnerabile la aceste efecte.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Nu g\u0103si\u021bi ce dori\u021bi? Nu v\u0103 face\u021bi griji. Exist\u0103 \u00eentotdeauna modalit\u0103\u021bi alternative de a v\u0103 rezolva problemele. Poate v\u0103 poate ajuta portofoliul nostru. Senzori de mi\u0219care PIR Mi\u0219care<\/p>","protected":false},"author":4,"featured_media":12868,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"lighting industry\", \"idxall\": 1, \"keywordtitlesimi\": 0.7885549306869507, \"keywordslugsimi\": 0.7885549306869507, \"paratitlesimi\": 0.6529279321432114, \"paraslugsimi\": 0.6529279321432114, \"slug\": \"tips-for-increasing-the-efficiency-of-commercial-lighting\", \"title\": \"Tips for Increasing the Efficiency of Commercial Lighting\", \"id\": 10327}, {\"keyword\": \"60 Hz\", \"idxall\": 0, \"keywordtitlesimi\": 0.7806369662284851, \"keywordslugsimi\": 0.7707458734512329, \"paratitlesimi\": 0.6719734072685242, \"paraslugsimi\": 0.6530662775039673, \"slug\": \"what-is-hertz-hz\", \"title\": \"What is Hertz (Hz)\", \"id\": 14300}]","article_topic":"","article_fact_check":"","mt_social_share":"","mt_content_meta":"","mt_glossary_display":"","glossary_heading":"","glossary":"harmonic","glossary_alter":"","glossary_def":"","article_task":"","footnotes":""},"categories":[102],"tags":[99],"class_list":["post-14104","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-glossary"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Harmonic - Rayzeek<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is Harmonic - Rayzeek\" \/>\n<meta property=\"og:description\" content=\"Doesn&#039;t find what you want? 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Maybe one of our portfolios can help.PIR Motion SensorsMotion\" \/>\n<meta property=\"og:url\" content=\"https:\/\/staging.rayzeek.com\/ro\/glossary\/what-is-harmonic\/\" \/>\n<meta property=\"og:site_name\" content=\"Rayzeek\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/bester001\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/bester001\/\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-18T00:07:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-12-26T08:44:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/staging.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-10.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Horace He\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@RayzeekTech\" \/>\n<meta name=\"twitter:site\" content=\"@RayzeekTech\" \/>\n<meta name=\"twitter:label1\" content=\"Scris de\" \/>\n\t<meta name=\"twitter:data1\" content=\"Horace He\" \/>\n\t<meta name=\"twitter:label2\" content=\"Timp estimat pentru citire\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/\"},\"author\":{\"name\":\"Horace He\",\"@id\":\"https:\/\/staging.rayzeek.com\/#\/schema\/person\/ff0b4bd6573444e02efc8613274549c4\"},\"headline\":\"What is Harmonic\",\"datePublished\":\"2023-09-18T00:07:52+00:00\",\"dateModified\":\"2023-12-26T08:44:13+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/\"},\"wordCount\":544,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/staging.rayzeek.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/staging.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-10.jpg\",\"keywords\":[\"glossary\"],\"articleSection\":[\"glossary\"],\"inLanguage\":\"ro-RO\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/\",\"url\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/\",\"name\":\"What is Harmonic - Rayzeek\",\"isPartOf\":{\"@id\":\"https:\/\/staging.rayzeek.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/staging.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-10.jpg\",\"datePublished\":\"2023-09-18T00:07:52+00:00\",\"dateModified\":\"2023-12-26T08:44:13+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/#breadcrumb\"},\"inLanguage\":\"ro-RO\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ro-RO\",\"@id\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/#primaryimage\",\"url\":\"https:\/\/staging.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-10.jpg\",\"contentUrl\":\"https:\/\/staging.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-10.jpg\",\"width\":1200,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/staging.rayzeek.com\/zh_hk\/glossary\/what-is-harmonic\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/staging.rayzeek.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What is Harmonic\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/staging.rayzeek.com\/#website\",\"url\":\"https:\/\/staging.rayzeek.com\/\",\"name\":\"Rayzeek\",\"description\":\"Motion Sensor &amp; 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