{"id":11052,"date":"2026-05-02T18:15:04","date_gmt":"2026-05-02T16:15:04","guid":{"rendered":"https:\/\/ecocranes.hu\/?p=11052"},"modified":"2026-05-02T18:16:45","modified_gmt":"2026-05-02T16:16:45","slug":"energiahatekony-daruuzem-mit-ad-a-frekvenciavalto-es-a-lagyinditas","status":"publish","type":"post","link":"https:\/\/ecocranes.hu\/ro\/energiahatekony-daruuzem-mit-ad-a-frekvenciavalto-es-a-lagyinditas\/","title":{"rendered":"O exploatare eficient\u0103 din punct de vedere energetic a macaralelor: ce avantaje ofer\u0103 convertorul de frecven\u021b\u0103 \u0219i pornirea progresiv\u0103?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"11052\" class=\"elementor elementor-11052\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-04ca05f e-flex e-con-boxed e-con e-parent\" data-id=\"04ca05f\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-df3a47b elementor-widget elementor-widget-text-editor\" data-id=\"df3a47b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Mul\u021bi oameni \u00eenc\u0103 mai asociaz\u0103 eficien\u021ba energetic\u0103 a unei macarale industriale cu cantitatea de energie electric\u0103 consumat\u0103 de echipament, de\u0219i problema este mai complex\u0103 dec\u00e2t at\u00e2t. La fel de important este sistemul de comand\u0103 modern: cum porne\u0219te motorul, c\u00e2t de uniform\u0103 este mi\u0219carea, ce sarcin\u0103 suport\u0103 sistemul de ac\u021bionare, fr\u00e2na, cablul sau lan\u021bul? C\u00e2t timp se pierde \u0219i c\u00e2t\u0103 energie se irose\u0219te \u00eentr-un proces de lucru din cauza unor reglaje imprecise sau a unui echipament greu de manevrat? Prin urmare, o exploatare modern\u0103 \u0219i eficient\u0103 din punct de vedere energetic a macaralelor nu se bazeaz\u0103 pe o singur\u0103 solu\u021bie spectaculoas\u0103, ci pe mai multe componente mai mici. \u00cen seria noastr\u0103 de articole le vom trece \u00een revist\u0103 pe acestea. S\u0103 \u00eencepem cu sistemul de comand\u0103!<\/strong><\/p><h2><strong>Dou\u0103 ingrediente principale<\/strong><\/h2><p>Una dintre componentele principale ale unui sistem modern de comand\u0103 a macaralelor este <strong>convertor de frecven\u021b\u0103<\/strong>, adic\u0103 VFD. Scopul s\u0103u este acela de a <strong>regleaz\u0103 tura\u021bia motorului electric \u00een func\u021bie de cerin\u021bele sarcinii<\/strong>.<\/p><p>\u00cen loc ca motorul s\u0103 ating\u0103 brusc tura\u021bia maxim\u0103, acesta accelereaz\u0103 treptat, \u00eencetine\u0219te \u00een mod controlat \u0219i men\u021bine cu mai mult\u0103 precizie viteza dorit\u0103. \u00cen cazul macaralelor, acest lucru este deosebit de important, deoarece ridicarea, mi\u0219carea c\u0103ruciorului \u0219i deplasarea podului macaralei reprezint\u0103 sarcini de natur\u0103 diferit\u0103.<\/p><p>Mi\u0219carea unui c\u00e2rlig gol, reglarea unei piese de lucru sensibile \u0219i ridicarea unei sarcini grele nu necesit\u0103 acela\u0219i tip de comand\u0103 a motorului.<\/p><p>Un alt element cel pu\u021bin la fel de important este <strong>pornire u\u0219oar\u0103. <\/strong>\u00cen compara\u021bie cu VFD, acesta \u00eendepline\u0219te o sarcin\u0103 mai restr\u00e2ns\u0103.<\/p><p><strong>Scopul s\u0103u este de a reduce consumul de curent la pornire \u0219i v\u00e2rfurile bru\u0219te de cuplu.<\/strong> Acest lucru conteaz\u0103 foarte mult \u00een sine: \u00eenseamn\u0103 o solicitare electric\u0103 mai redus\u0103 a re\u021belei, protejeaz\u0103 motorul \u0219i reduce efectele mecanice care se produc asupra structurii la fiecare pornire.<\/p><blockquote><p>O diferen\u021b\u0103 important\u0103 este \u00eens\u0103 faptul c\u0103 demarorul cu pornire lin\u0103 gestioneaz\u0103 \u00een principal fazele de pornire \u0219i de oprire, \u00een timp ce convertorul de frecven\u021b\u0103 este capabil s\u0103 regleze viteza \u0219i cuplul pe toat\u0103 durata mi\u0219c\u0103rii.<\/p><\/blockquote><h2><strong>Importan\u021b\u0103 deosebit\u0103<\/strong><\/h2><p>Un sistem de comand\u0103 adecvat este de o importan\u021b\u0103 primordial\u0103, deoarece, \u00een cazul macaralelor, eficien\u021ba energetic\u0103 nu se manifest\u0103 \u00eentotdeauna la fel ca, de exemplu, \u00een cazul unui ventilator, unde reducerea tura\u021biei permite realizarea unei economii spectaculoase de energie. <strong>Un echipament de ridicare, atunci c\u00e2nd manipuleaz\u0103 c\u00e2teva tone, are nevoie de mult\u0103 energie chiar \u0219i atunci c\u00e2nd efectueaz\u0103 mi\u0219carea mai \u00eencet. De aceea, economisirea de energie trebuie evaluat\u0103 \u021bin\u00e2nd cont de alte aspecte.<\/strong> Iat\u0103 c\u00e2teva exemple: motorul func\u021bioneaz\u0103 doar at\u00e2t c\u00e2t este necesar pentru mi\u0219carea respectiv\u0103; sau gradul de accelerare \u00een plus, care \u00eembun\u0103t\u0103\u021be\u0219te manevrabilitatea.<\/p><p>Aceste caracteristici sunt cel pu\u021bin la fel de importante ca \u0219i consumul de energie electric\u0103. Pornirile \u0219i fr\u00e2n\u0103rile bru\u0219te pot provoca oscila\u021bii, ceea ce \u00eencetine\u0219te pozi\u021bionarea. \u00cen astfel de situa\u021bii, operatorul corecteaz\u0103, a\u0219teapt\u0103, reporne\u0219te \u0219i apoi opre\u0219te din nou. \u00centr-un singur ciclu, acest lucru pare s\u0103 dureze doar c\u00e2teva secunde, dar la c\u00e2teva sute de mi\u0219c\u0103ri pe zi, poate reprezenta o pierdere semnificativ\u0103 de timp.<\/p><p><strong>Accelera\u021bia \u0219i decelera\u021bia controlate contribuie la o mi\u0219care mai lin\u0103 a \u00eenc\u0103rc\u0103turii, la o pozi\u021bionare mai precis\u0103 \u0219i la un ritm mai uniform al procesului de lucru.<\/strong><\/p><p>Mi\u0219carea mai fin\u0103 are un efect \u0219i asupra structurii. Se exercit\u0103 o sarcin\u0103 mai mic\u0103 asupra ro\u021bii, \u0219inei, transmisiei, tamburului de cablu, <a href=\"https:\/\/ecocranes.hu\/ro\/a-lancok-bevonatainak-szerepe\/\">\u00een lan\u021b<\/a>, la fr\u00e2n\u0103 \u0219i la structura de sus\u021binere. Acest lucru nu \u00eenseamn\u0103 c\u0103 <a href=\"https:\/\/ecocranes.hu\/ro\/a-rendszeres-karbantartas-elonyei\/\">\u00eentre\u021binere<\/a> poate fi omis, iar un convertor de frecven\u021b\u0103 sau un dispozitiv de pornire progresiv\u0103 previne orice defec\u021biune.<\/p><p>\u00cen schimb, este adev\u0103rat c\u0103 <strong>un sistem de control bine dimensionat \u0219i reglat corespunz\u0103tor poate reduce solicitarea inutil\u0103<\/strong>, astfel \u00eenc\u00e2t poate avea un efect pozitiv asupra cantit\u0103\u021bii de energie consumat\u0103, dar \u0219i asupra duratei de via\u021b\u0103 \u0219i a siguran\u021bei de func\u021bionare.<\/p><p>Merit\u0103 s\u0103 acorda\u021bi o aten\u021bie special\u0103 \u0219i v\u00e2rfurilor de consum. \u00cen multe cazuri, nu consumul mediu reprezint\u0103 cea mai mare problem\u0103, ci pornirea simultan\u0103 a mai multor aparate \u0219i consumul brusc de energie care rezult\u0103 din aceasta.<\/p><blockquote><p><strong>Pornirea progresiv\u0103 \u0219i controlul prin convertor de frecven\u021b\u0103 pot contribui la o pornire mai uniform\u0103, ceea ce poate fi mai avantajos at\u00e2t pentru re\u021beaua electric\u0103, c\u00e2t \u0219i pentru distribu\u021bia intern\u0103 a energiei.<\/strong><\/p><\/blockquote><p>Concluzia este simpl\u0103: exploatarea eficient\u0103 din punct de vedere energetic a unei macarale nu se rezum\u0103 doar la consumul de energie electric\u0103. Sistemul de ac\u021bionare poate influen\u021ba, de asemenea, \u00een mare m\u0103sur\u0103 aceast\u0103 caracteristic\u0103 a unui echipament de ridicare. \u00cen urm\u0103torul articol vom analiza cum se poate \u00eembun\u0103t\u0103\u021bi \u0219i mai mult rentabilitatea pe termen lung a macaralelor prin cicluri optime, strategii de fr\u00e2nare \u0219i obiceiuri de exploatare zilnice.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Mul\u021bi oameni \u00eenc\u0103 mai asociaz\u0103 eficien\u021ba energetic\u0103 a unei macarale industriale cu cantitatea de energie electric\u0103 consumat\u0103 de echipament, de\u0219i problema este mai complex\u0103 dec\u00e2t at\u00e2t. La fel de important este \u0219i sistemul de comand\u0103 modern: cum porne\u0219te motorul, c\u00e2t de uniform\u0103 este mi\u0219carea, ce sarcin\u0103 suport\u0103 sistemul de ac\u021bionare, fr\u00e2na, cablul sau lan\u021bul?<\/p>","protected":false},"author":1,"featured_media":10811,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[102],"tags":[129,227,228],"class_list":["post-11052","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hirek-cikkek","tag-emelestechnika","tag-frekvenciavalto","tag-lagyinditas","has-thumb"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mit ad a frekvenciav\u00e1lt\u00f3 \u00e9s a l\u00e1gyind\u00edt\u00e1s? - Eco-Cranes<\/title>\n<meta name=\"description\" content=\"A korszer\u0171, energiatakar\u00e9kos daru\u00fczem t\u00f6bb kisebb komponensen alapul, p\u00e9ld\u00e1ul a frekvenciav\u00e1lt\u00f3n, a l\u00e1gyind\u00edt\u00e1son. \u00c9rdemes ut\u00e1na olvasni!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ecocranes.hu\/ro\/energiahatekony-daruuzem-mit-ad-a-frekvenciavalto-es-a-lagyinditas\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Energiahat\u00e9kony daru\u00fczem: mit ad a frekvenciav\u00e1lt\u00f3 \u00e9s a l\u00e1gyind\u00edt\u00e1s?\" \/>\n<meta property=\"og:description\" content=\"A korszer\u0171, energiatakar\u00e9kos daru\u00fczem t\u00f6bb kisebb komponensen alapul, p\u00e9ld\u00e1ul a frekvenciav\u00e1lt\u00f3n, a l\u00e1gyind\u00edt\u00e1son. \u00c9rdemes ut\u00e1na olvasni!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ecocranes.hu\/ro\/energiahatekony-daruuzem-mit-ad-a-frekvenciavalto-es-a-lagyinditas\/\" \/>\n<meta property=\"og:site_name\" content=\"Eco-Cranes\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ecocranes\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-02T16:15:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-02T16:16:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ecocranes.hu\/wp-content\/uploads\/2025\/10\/ECO-3-grey-01-768x599-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"768\" \/>\n\t<meta property=\"og:image:height\" content=\"599\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eco.-admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Scris de\" \/>\n\t<meta name=\"twitter:data1\" content=\"eco.-admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Timp estimat pentru citire\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/ecocranes.hu\/energiahatekony-daruuzem-mit-ad-a-frekvenciavalto-es-a-lagyinditas\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/ecocranes.hu\/energiahatekony-daruuzem-mit-ad-a-frekvenciavalto-es-a-lagyinditas\/\"},\"author\":{\"name\":\"eco.-admin\",\"@id\":\"https:\/\/ecocranes.hu\/#\/schema\/person\/313efb4c05acc39796b4c6dbd501f01d\"},\"headline\":\"Energiahat\u00e9kony daru\u00fczem: mit ad a frekvenciav\u00e1lt\u00f3 \u00e9s a l\u00e1gyind\u00edt\u00e1s?\",\"datePublished\":\"2026-05-02T16:15:04+00:00\",\"dateModified\":\"2026-05-02T16:16:45+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/ecocranes.hu\/energiahatekony-daruuzem-mit-ad-a-frekvenciavalto-es-a-lagyinditas\/\"},\"wordCount\":863,\"publisher\":{\"@id\":\"https:\/\/ecocranes.hu\/#organization\"},\"image\":{\"@id\":\"https:\/\/ecocranes.hu\/energiahatekony-daruuzem-mit-ad-a-frekvenciavalto-es-a-lagyinditas\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/ecocranes.hu\/wp-content\/uploads\/2025\/10\/ECO-3-grey-01-768x599-1.jpg\",\"keywords\":[\"emel\u00e9stechnika\",\"frekvenciav\u00e1lt\u00f3\",\"l\u00e1gyind\u00edt\u00e1s\"],\"articleSection\":[\"H\u00edrek, cikkek\"],\"inLanguage\":\"ro-RO\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ecocranes.hu\/energiahatekony-daruuzem-mit-ad-a-frekvenciavalto-es-a-lagyinditas\/\",\"url\":\"https:\/\/ecocranes.hu\/energiahatekony-daruuzem-mit-ad-a-frekvenciavalto-es-a-lagyinditas\/\",\"name\":\"Mit ad a frekvenciav\u00e1lt\u00f3 \u00e9s a l\u00e1gyind\u00edt\u00e1s? - 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