{"id":4979,"date":"2024-03-07T17:26:50","date_gmt":"2024-03-07T09:26:50","guid":{"rendered":"https:\/\/www.sevencrane.com\/?p=4979"},"modified":"2024-03-07T17:26:53","modified_gmt":"2024-03-07T09:26:53","slug":"electrical-fault-detection-method-for-bridge-crane","status":"publish","type":"post","link":"https:\/\/www.sevencrane.com\/sv\/electrical-fault-detection-method-for-bridge-crane\/","title":{"rendered":"Elektrisk feldetekteringsmetod f\u00f6r brokran"},"content":{"rendered":"<p>Det finns idag tv\u00e5 huvudmetoder f\u00f6r att uppt\u00e4cka elektriska fel i brokranar, n\u00e4mligen sensorisk metod och n\u00f6dmetod. B\u00e5da metoderna anv\u00e4nder sinnen f\u00f6r att uppfatta felpunkten och sedan best\u00e4mma typen av fel baserat p\u00e5 ytfelsfenomen. Detekteringseffektiviteten \u00e4r mycket l\u00e5g, vilket l\u00e4tt kan leda till att fel \u00e5terkommer. Den h\u00e4r artikeln f\u00f6resl\u00e5r n\u00e5gra snabba metoder f\u00f6r att uppt\u00e4cka elektriska fel i brokranar, i hopp om att ge dig referens.<\/p>\n\n\n\n<p>Den h\u00e4r artikeln tar en <a href=\"https:\/\/www.sevencrane.com\/sv\/pro_cat\/overhead-crane\/\">5t brokran <\/a>analyserar som ett exempel orsakerna till vanliga fel och f\u00f6resl\u00e5r en upps\u00e4ttning intuitiva och l\u00e4tta att implementera elektriska feldetekteringsmetoder i enlighet med underh\u00e5llssystemet f\u00f6r elektrisk utrustning som specificeras i GB6067-85.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2023\/03\/21170336\/installation-of-bridge-crane.jpg\" alt=\"installation av brokran\" class=\"wp-image-4077 lazyload\"\/><noscript><img decoding=\"async\" width=\"750\" height=\"431\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2023\/03\/21170336\/installation-of-bridge-crane.jpg\" alt=\"installation av brokran\" class=\"wp-image-4077 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2023\/03\/21170336\/installation-of-bridge-crane.jpg 750w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2023\/03\/21170336\/installation-of-bridge-crane-300x172.jpg 300w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/noscript><\/figure>\n\n\n\n<p>1. St\u00e4ng str\u00f6mbrytaren och s\u00e4kringen p\u00e5 str\u00f6ms\u00e4kringen kommer att sm\u00e4lta<\/p>\n\n\n\n<p>Orsak till fel: Det finns ett jordnings- eller kortslutningsfenomen.<\/p>\n\n\n\n<p>Fels\u00f6kningsmetod: Kontrollera str\u00f6mkretsen, identifiera jordnings- eller kortslutningspunkten och eliminera den.<\/p>\n\n\n\n<p>2. Huvudkontaktorn kopplar inte in<\/p>\n\n\n\n<p>Orsak till felfunktion: N\u00f6dstr\u00f6mbrytare inte st\u00e4ngd. Hyttd\u00f6rrens s\u00e4kerhetsl\u00e4gesbrytare \u00e4r inte st\u00e4ngd. Styrenheten har inte \u00e5terg\u00e5tt till nolll\u00e4ge. Kontaktorspole \u00f6ppen krets eller ingen fungerande str\u00f6mf\u00f6rs\u00f6rjning.<\/p>\n\n\n\n<p>Fels\u00f6kningsmetod: Kontrollera och st\u00e4ng n\u00f6dstr\u00f6mbrytaren eller d\u00f6rrl\u00e4gesbrytaren. Kontrollera styrenheten f\u00f6r att st\u00e4lla den i nolll\u00e4ge. Byt ut kontaktorspolen. Om det inte finns n\u00e5gon driftsstr\u00f6m b\u00f6r str\u00f6mmen \u00e5terst\u00e4llas.<\/p>\n\n\n\n<p>3. Efter att huvudkontaktorn \u00e4r inkopplad, verkar \u00f6verstr\u00f6msrel\u00e4et och kontaktorn sl\u00e4pps<\/p>\n\n\n\n<p>Felorsak: Styrkretsen \u00e4r jordad.<\/p>\n\n\n\n<p>Fels\u00f6kningsmetod: Koppla bort anslutningen mellan skyddsskivan och styrenheten och anslut den sedan gradvis. St\u00e4ng kontaktorn en g\u00e5ng varje g\u00e5ng den ansluts, kontrollera ledningen enligt \u00f6verstr\u00f6msrel\u00e4ets funktion och eliminera jordningsfelet.<\/p>\n\n\n\n<p>4. Efter att regulatorn \u00e4r st\u00e4ngd, agerar \u00f6verstr\u00f6msrel\u00e4et och kontaktorn sl\u00e4pps<\/p>\n\n\n\n<p>Felorsak: Inst\u00e4llningsv\u00e4rdet f\u00f6r \u00f6verstr\u00f6msrel\u00e4et \u00e4r f\u00f6r litet och statorkretsen \u00e4r jordad.<\/p>\n\n\n\n<p>Fels\u00f6kningsmetod: Justera om inst\u00e4llningsv\u00e4rdet f\u00f6r \u00f6verstr\u00f6msrel\u00e4et, anv\u00e4nd en megohmmeter f\u00f6r att kontrollera och fels\u00f6ka jordningsfelet.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2020\/10\/21145814\/5t-bridge-crane.jpg\" alt=\"5t brokran\" class=\"wp-image-3722 lazyload\"\/><noscript><img decoding=\"async\" width=\"750\" height=\"562\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2020\/10\/21145814\/5t-bridge-crane.jpg\" alt=\"5t brokran\" class=\"wp-image-3722 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2020\/10\/21145814\/5t-bridge-crane.jpg 750w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2020\/10\/21145814\/5t-bridge-crane-300x225.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2020\/10\/21145814\/5t-bridge-crane-428x321.jpg 428w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2020\/10\/21145814\/5t-bridge-crane-345x258.jpg 345w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2020\/10\/21145814\/5t-bridge-crane-253x190.jpg 253w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/noscript><\/figure>\n\n\n\n<p>Orsakerna till elektriska driftsfel i brokranar \u00e4r mycket komplexa. Endast genom att utf\u00f6ra snabb uppt\u00e4ckt av dessa fel, fastst\u00e4lla typ och orsak till felen, kan vi identifiera f\u00f6rebyggande och l\u00f6sningsstrategier f\u00f6r elektriska kranfel. P\u00e5 s\u00e5 s\u00e4tt minskar p\u00e5verkan p\u00e5 utrustning och personlig s\u00e4kerhet, och s\u00e4kerst\u00e4ller s\u00e4ker drift av elektrisk utrustning.<\/p>","protected":false},"excerpt":{"rendered":"<p>Det finns idag tv\u00e5 huvudmetoder f\u00f6r att uppt\u00e4cka elektriska fel i brokranar, n\u00e4mligen sensorisk metod och n\u00f6dmetod. B\u00e5da metoderna anv\u00e4nder sinnen f\u00f6r att uppfatta felpunkten och sedan best\u00e4mma typen av fel baserat p\u00e5 ytfelsfenomen. Detekteringseffektiviteten \u00e4r mycket l\u00e5g, vilket l\u00e4tt kan leda till att fel \u00e5terkommer.\u2026<\/p>","protected":false},"author":2,"featured_media":3498,"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 Fault Detection Method for Bridge Crane<\/title>\n<meta name=\"description\" content=\"This article proposes some fast methods for detecting electrical faults in bridge crane, hoping to provide reference for relevant personnel.\" \/>\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\/sv\/electrical-fault-detection-method-for-bridge-crane\/\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" 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