{"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\/nb\/electrical-installation-and-commissioning-of-bridge-crane\/","title":{"rendered":"Elektrisk installasjon og igangkj\u00f8ring av brokran"},"content":{"rendered":"<p>Ved bygging av kraftverk er brokran et mye brukt l\u00f8fteutstyr. Dens hyppige bruk, tunge arbeidsbelastning og h\u00f8ye vibrasjoner resulterer i h\u00f8y feilfrekvens. Vitenskapelige og fornuftige konstruksjonsmetoder er n\u00f8kkelen til \u00e5 sikre installasjonskvalitet under den elektriske installasjonen og idriftsettelsesprosessen av brokraner. Installasjon av elektrisk utstyr for brokraner og legging av ledninger b\u00f8r utf\u00f8res strengt i samsvar med vedlagte elektriske skjema, koblingsskjema, generelt diagram for elektrisk utstyr og tilsvarende spesifikasjoner.<\/p>\n\n\n\n<p><strong>Forberedelsesarbeid f\u00f8r installasjon<\/strong><\/p>\n\n\n\n<p>F\u00f8r den elektriske installasjonen av brokranen, er det n\u00f8dvendig \u00e5 v\u00e6re kjent med relevante elektriske diagrammer og tekniske forhold i detalj, forst\u00e5 samspillet og kontrollprinsippene for hver komponent. For raskt \u00e5 l\u00f8se eventuelle problemer som kan oppst\u00e5 under installasjon og testing. F\u00f8r installasjon b\u00f8r alt elektrisk utstyr og komponenter rengj\u00f8res og inspiseres. Alt elektrisk utstyr og komponenter skal v\u00e6re feilfrie, fungere fleksibelt, og det skal ikke v\u00e6re fastkj\u00f8rt eller l\u00f8snet. Modellen, spesifikasjonene og kontaktsekvensen for elektrisk utstyr og komponenter m\u00e5 samsvare med tegningene.<\/p>\n\n\n\n<p><strong>Motor<\/strong><\/p>\n\n\n\n<p>Utf\u00f8r f\u00f8rst en generell visuell inspeksjon ved \u00e5 rotere koblingen og se om rotoren roterer fleksibelt. Og m\u00e5l isolasjonsmotstanden med et megohmmeter. Hvis statoren er st\u00f8rre enn 1,5 megaohm og rotoren er st\u00f8rre enn 0,8 megaohm, kan den brukes. Ellers b\u00f8r den t\u00f8rkes. Den kan plasseres i en ovn eller t\u00f8rkes ved \u00e5 innf\u00f8re en lavspent kortslutningsstr\u00f8m.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.sevencrane.com\/nb\/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 installasjonen er det n\u00f8dvendig \u00e5 sjekke om de bevegelige delene er l\u00f8se, skjeve eller sitter fast. Og rusten og annet smuss p\u00e5 de bevegelige delene og kontaktflaten til magneten b\u00f8r fjernes. Det skal ikke v\u00e6re mellomrom mellom kontaktflatene til magneten under drift. Hvis det er hull, m\u00e5 de justeres og ryddes.<\/p>\n\n\n\n<p><strong>Koblingskontrollpanel eller kontroller<\/strong><\/p>\n\n\n\n<p>Skj\u00f8teflaten til hver kontakt skal v\u00e6re i linjekontakt, med et trykk p\u00e5 ca. 10-17 N avhengig av st\u00f8rrelsen p\u00e5 kontakten, justert med mutteren som presser fj\u00e6ren. Hver ledningsskrue skal strammes og kontakten skal v\u00e6re god. Betjeningsh\u00e5ndtaket skal v\u00e6re fleksibelt og girposisjonen skal v\u00e6re klar.<\/p>\n\n\n\n<p><strong>Motstand<\/strong><\/p>\n\n\n\n<p>Kablingen til motstanden m\u00e5 v\u00e6re riktig tilkoblet i henhold til den oppgitte informasjonen. Hvis det viser seg at kraften til den elektriske motoren er utilstrekkelig og kontrollh\u00e5ndtaket ikke kan l\u00f8fte den nominelle lasten eller starte de store og sm\u00e5 kj\u00f8ret\u00f8yene i den angitte posisjonen, b\u00f8r en inspeksjon utf\u00f8res. F\u00f8rst m\u00e5 du sjekke om det er noen feil i ledningene til motstanden. For mekanismer drevet av doble motorer, b\u00f8r motstandene som brukes, justeres riktig.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ved bygging av kraftverk er brokran et mye brukt l\u00f8fteutstyr. Dens hyppige bruk, tunge arbeidsbelastning og h\u00f8ye vibrasjoner resulterer i h\u00f8y feilfrekvens. Vitenskapelige og fornuftige konstruksjonsmetoder er n\u00f8kkelen til \u00e5 sikre installasjonskvalitet under den elektriske installasjonen og idriftsettelsesprosessen av brokraner. Installasjon av elektrisk utstyr...<\/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\/nb\/electrical-installation-and-commissioning-of-bridge-crane\/\" \/>\n<meta property=\"og:locale\" content=\"nb_NO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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