{"id":5022,"date":"2024-03-21T16:26:12","date_gmt":"2024-03-21T08:26:12","guid":{"rendered":"https:\/\/www.sevencrane.com\/?p=5022"},"modified":"2024-03-21T16:26:15","modified_gmt":"2024-03-21T08:26:15","slug":"electrical-installation-and-commissioning-of-bridge-crane","status":"publish","type":"post","link":"https:\/\/www.sevencrane.com\/da\/electrical-installation-and-commissioning-of-bridge-crane\/","title":{"rendered":"El-installation og idrifts\u00e6ttelse af brokran"},"content":{"rendered":"<p>Ved konstruktion af kraftv\u00e6rker er brokran et meget brugt l\u00f8fteudstyr. Dens hyppige brug, store arbejdsbyrde og h\u00f8je vibrationer resulterer i en h\u00f8j fejlrate. Videnskabelige og rimelige konstruktionsmetoder er n\u00f8glen til at sikre installationskvaliteten under den elektriske installation og idrifts\u00e6ttelsesprocessen af brokraner. Installation af elektrisk udstyr til brokraner og l\u00e6gning af ledninger skal udf\u00f8res strengt i overensstemmelse med det vedlagte elektriske skema, ledningsdiagram, det generelle diagram for elektrisk udstyr og tilsvarende specifikationer.<\/p>\n\n\n\n<p><strong>Forberedelsesarbejde f\u00f8r montering<\/strong><\/p>\n\n\n\n<p>F\u00f8r den elektriske installation af brokranen er det n\u00f8dvendigt at v\u00e6re bekendt med de relevante elektriske diagrammer og tekniske forhold i detaljer, forst\u00e5 samspillet og styringsprincipperne for hver komponent. For hurtigt at l\u00f8se eventuelle problemer, der m\u00e5tte opst\u00e5 under installation og test. F\u00f8r installationen skal alt elektrisk udstyr og komponenter reng\u00f8res og efterses. Alt elektrisk udstyr og komponenter skal v\u00e6re fejlfrie, fungere fleksibelt, og der m\u00e5 ikke v\u00e6re fastklemte eller l\u00f8snede. Model, specifikationer og kontaktlukningssekvens for elektrisk udstyr og komponenter skal v\u00e6re i overensstemmelse med tegningerne.<\/p>\n\n\n\n<p><strong>Motor<\/strong><\/p>\n\n\n\n<p>Udf\u00f8r f\u00f8rst en generel visuel inspektion ved at dreje koblingen og observere, om rotoren roterer fleksibelt. Og m\u00e5l dens isolationsmodstand med et megohmmeter. Hvis statoren er st\u00f8rre end 1,5 megaohm, og rotoren er st\u00f8rre end 0,8 megaohm, kan den bruges. Ellers skal den t\u00f8rres. Den kan placeres i en ovn eller t\u00f8rres ved at indf\u00f8re en lavsp\u00e6ndings kortslutningsstr\u00f8m.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.sevencrane.com\/da\/product\/double-girder-overhead-crane\/\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane.jpg\" alt=\"32T traverskran\" class=\"wp-image-3433 lazyload\"\/><noscript><img decoding=\"async\" width=\"750\" height=\"563\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane.jpg\" alt=\"32T traverskran\" class=\"wp-image-3433 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane.jpg 750w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane-300x225.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane-428x321.jpg 428w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane-345x258.jpg 345w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane-253x190.jpg 253w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/noscript><\/a><\/figure>\n\n\n\n<p><strong>Elektromagnet<\/strong><\/p>\n\n\n\n<p>Under installationen er det n\u00f8dvendigt at kontrollere, om de bev\u00e6gelige dele er l\u00f8se, sk\u00e6ve eller sidder fast. Og rusten og andet snavs p\u00e5 de bev\u00e6gelige dele og magnetens kontaktflade skal fjernes. Der m\u00e5 ikke v\u00e6re mellemrum mellem magnetens kontaktflader under drift. Hvis der er huller, skal de justeres og ryddes.<\/p>\n\n\n\n<p><strong>Linkage kontrolpanel eller controller<\/strong><\/p>\n\n\n\n<p>Fugefladen p\u00e5 hver kontakt skal v\u00e6re i liniekontakt med et tryk p\u00e5 ca. 10-17 N afh\u00e6ngigt af kontaktens st\u00f8rrelse, justeret med m\u00f8trikken, der presser fjederen. Hver ledningsskrue skal strammes, og kontakten skal v\u00e6re god. Betjeningsh\u00e5ndtaget skal v\u00e6re fleksibelt, og gearstillingen skal v\u00e6re fri.<\/p>\n\n\n\n<p><strong>Modstand<\/strong><\/p>\n\n\n\n<p>Modstandens ledninger skal tilsluttes korrekt i henhold til de angivne oplysninger. Hvis det konstateres, at elmotorens kraft er utilstr\u00e6kkelig, og kontrolh\u00e5ndtaget ikke kan l\u00f8fte den nominelle last eller starte de store og sm\u00e5 k\u00f8ret\u00f8jer i den specificerede position, skal der udf\u00f8res en inspektion. F\u00f8rst skal du kontrollere, om der er fejl i ledningerne til modstanden. For mekanismer drevet af dobbeltmotorer b\u00f8r de anvendte modstande justeres korrekt.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ved konstruktion af kraftv\u00e6rker er brokran et meget brugt l\u00f8fteudstyr. Dens hyppige brug, store arbejdsbyrde og h\u00f8je vibrationer resulterer i en h\u00f8j fejlrate. Videnskabelige og rimelige konstruktionsmetoder er n\u00f8glen til at sikre installationskvaliteten under den elektriske installation og idrifts\u00e6ttelsesprocessen af brokraner. Installation af elektrisk udstyr...<\/p>","protected":false},"author":2,"featured_media":4988,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Electrical Installation and Commissioning of Bridge Crane<\/title>\n<meta name=\"description\" content=\"The installation of electrical equipment for bridge crane should be strictly carried out in accordance with the attached electrical schematic\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sevencrane.com\/da\/electrical-installation-and-commissioning-of-bridge-crane\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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