{"id":11538,"date":"2026-06-02T09:25:06","date_gmt":"2026-06-02T09:25:06","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=11538"},"modified":"2026-06-02T09:25:13","modified_gmt":"2026-06-02T09:25:13","slug":"overhead-crane-electrical-system-failures-causes-troubleshooting-repair-guide","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/cs\/posts\/overhead-crane-electrical-system-failures-causes-troubleshooting-repair-guide\/","title":{"rendered":"Poruchy elektrick\u00e9ho syst\u00e9mu mostov\u00e9ho je\u0159\u00e1bu: P\u0159\u00ed\u010diny, odstra\u0148ov\u00e1n\u00ed probl\u00e9m\u016f a pr\u016fvodce opravami"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Obsah<\/p><nav><ul><li><a href=\"#part-1-common-types-of-overhead-crane-electrical-system-failures\">\u010c\u00e1st 1: B\u011b\u017en\u00e9 typy poruch elektrick\u00e9ho syst\u00e9mu mostov\u00e9ho je\u0159\u00e1bu<\/a><ul><li><a href=\"#1-ac-motor-failures\">1. Poruchy st\u0159\u00eddav\u00e9ho motoru<\/a><\/li><li><a href=\"#2-ac-electromagnet-failures\">2. Poruchy st\u0159\u00eddav\u00e9ho elektromagnetu<\/a><\/li><li><a href=\"#3-ac-contactor-and-relay-failures\">3. Poruchy styka\u010d\u016f a rel\u00e9 st\u0159\u00eddav\u00e9ho proudu<\/a><\/li><li><a href=\"#4-hydraulic-electromagnet-thruster-failures\">4. Poruchy hydraulick\u00e9ho elektromagnetu (pohonn\u00e9ho za\u0159\u00edzen\u00ed)<\/a><\/li><\/ul><\/li><li><a href=\"#part-2-control-and-circuit-system-failures\">\u010c\u00e1st 2: Poruchy \u0159\u00eddic\u00edho a obvodov\u00e9ho syst\u00e9mu<\/a><ul><li><a href=\"#1-protection-box-knife-switch-closed-\u2192-control-circuit-fuse-blows\">1. No\u017eov\u00fd sp\u00edna\u010d ochrann\u00e9 sk\u0159\u00edn\u011b sepnut\u00fd \u2192 P\u0159ep\u00e1len\u00e1 pojistka \u0159\u00eddic\u00edho obvodu<\/a><\/li><li><a href=\"#2-over-current-relay-trips-when-controller-engaged\">2. Nadproudov\u00e9 rel\u00e9 se vypne, kdy\u017e je regul\u00e1tor zapnut\u00fd<\/a><\/li><li><a href=\"#3-main-contactor-engages-\u2192-incoming-line-fuse-blows\">3. Hlavn\u00ed styka\u010d se zapne \u2192 P\u0159ep\u00e1l\u00ed se pojistka vstupn\u00edho veden\u00ed<\/a><\/li><li><a href=\"#4-controller-engaged-but-motor-doesnt-rotate\">4. \u0158\u00eddic\u00ed jednotka je zapnut\u00e1, ale motor se neot\u00e1\u010d\u00ed<\/a><\/li><li><a href=\"#5-controller-engaged-\u2192-motor-runs-in-one-direction-only\">5. \u0158\u00eddic\u00ed jednotka zapnuta \u2192 Motor b\u011b\u017e\u00ed pouze v jednom sm\u011bru<\/a><\/li><li><a href=\"#6-limit-switch-activated-\u2192-main-contactor-wont-release\">6. Koncov\u00fd sp\u00edna\u010d aktivov\u00e1n \u2192 Hlavn\u00ed styka\u010d se neuvoln\u00ed<\/a><\/li><li><a href=\"#7-controller-returned-to-off-\u2192-main-contactor-wont-release\">7. Regul\u00e1tor se vr\u00e1til do polohy Vypnuto \u2192 Hlavn\u00ed styka\u010d se neuvol\u0148uje<\/a><\/li><li><a href=\"#8-controller-handle-jammed-during-operation\">8. Rukoje\u0165 ovlada\u010de se b\u011bhem provozu zasekla<\/a><\/li><li><a href=\"#9-generator-fails-to-excite-for-crane-with-onboard-generator-set\">9. Gener\u00e1tor selh\u00e1v\u00e1 (u je\u0159\u00e1bu s integrovan\u00fdm gener\u00e1torov\u00fdm agreg\u00e1tem)<\/a><\/li><li><a href=\"#10-power-cut-but-protection-box-contactor-wont-drop-out-control-circuit-de-energized\">10. V\u00fdpadek proudu, ale styka\u010d ochrann\u00e9 sk\u0159\u00edn\u011b se nerozpoj\u00ed (\u0159\u00eddic\u00ed obvod je bez nap\u00e1jen\u00ed)<\/a><\/li><\/ul><\/li><li><a href=\"#quick-diagnostic-flow-for-overhead-crane-electrical-problems\">Rychl\u00fd diagnostick\u00fd postup pro elektrick\u00e9 probl\u00e9my s mostov\u00fdm je\u0159\u00e1bem<\/a><\/li><li><a href=\"#replace-vs-repair-guide-for-crane-electrical-components\">Pr\u016fvodce v\u00fdm\u011bnou vs. opravou elektrick\u00fdch komponent je\u0159\u00e1bu<\/a><\/li><li><a href=\"#preventive-maintenance-for-overhead-crane-electrical-systems\">Preventivn\u00ed \u00fadr\u017eba elektrick\u00fdch syst\u00e9m\u016f mostov\u00fdch je\u0159\u00e1b\u016f<\/a><ul><li><a href=\"#inspect-electrical-connections-regularly\">Pravideln\u011b kontrolujte elektrick\u00e9 p\u0159ipojen\u00ed<\/a><\/li><li><a href=\"#monitor-motor-temperature\">Sledov\u00e1n\u00ed teploty motoru<\/a><\/li><li><a href=\"#check-contactors-and-relays\">Zkontrolujte styka\u010de a rel\u00e9<\/a><\/li><li><a href=\"#test-limit-switches-and-safety-devices\">Testov\u00e1n\u00ed koncov\u00fdch sp\u00edna\u010d\u016f a bezpe\u010dnostn\u00edch za\u0159\u00edzen\u00ed<\/a><\/li><li><a href=\"#follow-scheduled-electrical-inspections\">Dodr\u017eujte pl\u00e1novan\u00e9 elektroinstalace<\/a><\/li><\/ul><\/li><li><a href=\"#need-expert-support-for-overhead-crane-electrical-system-failures\">Pot\u0159ebujete odbornou pomoc p\u0159i poruch\u00e1ch elektrick\u00e9ho syst\u00e9mu mostov\u00e9ho je\u0159\u00e1bu?<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>Poruchy elektrick\u00fdch syst\u00e9m\u016f mostov\u00fdch je\u0159\u00e1b\u016f jsou jednou z hlavn\u00edch p\u0159\u00ed\u010din prostoj\u016f je\u0159\u00e1b\u016f ve v\u00fdrobn\u00edch z\u00e1vodech, skladech, ocel\u00e1rn\u00e1ch a za\u0159\u00edzen\u00edch t\u011b\u017ek\u00e9ho pr\u016fmyslu. Ve srovn\u00e1n\u00ed s mechanick\u00fdmi poruchami je diagnostika elektrick\u00fdch poruch \u010dasto obt\u00ed\u017en\u011bj\u0161\u00ed, proto\u017ee p\u0159\u00edznaky mohou b\u00fdt zav\u00e1d\u011bj\u00edc\u00ed.<\/p>\n\n\n\n<p>Nap\u0159\u00edklad motor, kter\u00fd se nespust\u00ed, m\u016f\u017ee b\u00fdt zp\u016fsoben sp\u00e1len\u00fdm styka\u010dem, vadn\u00fdm koncov\u00fdm sp\u00edna\u010dem, sp\u00e1lenou pojistkou, n\u00edzk\u00fdm nap\u00e1jec\u00edm nap\u011bt\u00edm nebo jednodu\u0161e uvoln\u011bn\u00fdm elektrick\u00fdm spojen\u00edm. Stejn\u011b tak p\u0159eh\u0159\u00e1t\u00ed, abnorm\u00e1ln\u00ed vibrace, jisk\u0159en\u00ed a ob\u010dasn\u00e9 vyp\u00edn\u00e1n\u00ed \u010dasto nazna\u010duj\u00ed hlub\u0161\u00ed probl\u00e9my uvnit\u0159 elektrick\u00e9ho syst\u00e9mu je\u0159\u00e1bu.<\/p>\n\n\n\n<p>Nejb\u011b\u017en\u011bj\u0161\u00ed <a href=\"https:\/\/www.kscranegroup.com\/cs\/overhead-cranes\/\">mostov\u00fd je\u0159\u00e1b<\/a> Mezi poruchy elektrick\u00e9ho syst\u00e9mu pat\u0159\u00ed p\u0159eh\u0159\u00e1t\u00ed motoru, po\u0161kozen\u00ed styka\u010d\u016f a rel\u00e9, poruchy elektromagnet\u016f, poruchy \u0159\u00eddic\u00edch obvod\u016f, poruchy koncov\u00fdch sp\u00edna\u010d\u016f a probl\u00e9my s nap\u00e1jen\u00edm.<\/p>\n\n\n\n<p>Tato p\u0159\u00edru\u010dka vysv\u011btluje, jak identifikovat, \u0159e\u0161it probl\u00e9my a opravovat poruchy elektrick\u00e9ho syst\u00e9mu mostov\u00e9ho je\u0159\u00e1bu pomoc\u00ed systematick\u00e9ho diagnostick\u00e9ho p\u0159\u00edstupu \u2013 od kontroly na \u00farovni sou\u010d\u00e1st\u00ed a\u017e po \u00faplnou anal\u00fdzu \u0159\u00eddic\u00edch obvod\u016f.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1920\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Electrical-System-Failures-Motor-scaled.jpg\" alt=\"\" class=\"wp-image-11539\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Electrical-System-Failures-Motor-scaled.jpg 2560w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Electrical-System-Failures-Motor-1536x1152.jpg 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Electrical-System-Failures-Motor-2048x1536.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"part-1-common-types-of-overhead-crane-electrical-system-failures\">\u010c\u00e1st 1: B\u011b\u017en\u00e9 typy poruch elektrick\u00e9ho syst\u00e9mu mostov\u00e9ho je\u0159\u00e1bu<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-ac-motor-failures\">1. Poruchy st\u0159\u00eddav\u00e9ho motoru<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-1-entire-motor-evenly-overheating\">1.1 Rovnom\u011brn\u00e9 p\u0159eh\u0159\u00edv\u00e1n\u00ed cel\u00e9ho motoru<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Zv\u00fd\u0161en\u00fd pracovn\u00ed cyklus (JC%) zp\u016fsobuje p\u0159et\u00ed\u017een\u00ed<\/td><td>Sni\u017ete intenzitu pr\u00e1ce je\u0159\u00e1bu nebo jej nahra\u010fte motorem dimenzovan\u00fdm pro skute\u010dn\u00fd JC%.<\/td><\/tr><tr><td>Provoz pod n\u00edzk\u00fdm nap\u011bt\u00edm<\/td><td>Zastavte provoz, pokud nap\u011bt\u00ed klesne pod jmenovitou hodnotu 10%<\/td><\/tr><tr><td>Nespr\u00e1vn\u00fd v\u00fdb\u011br motoru pro danou aplikaci<\/td><td>Vyberte vhodn\u00fd motor dle skute\u010dn\u00fdch charakteristik zat\u00ed\u017een\u00ed<\/td><\/tr><tr><td>Zm\u011bny po \u00fadr\u017eb\u011b zm\u011bnily v\u00fdkonnostn\u00ed parametry je\u0159\u00e1bu<\/td><td>Obnovit p\u016fvodn\u00ed parametry n\u00e1vrhu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-2-stator-localized-overheating\">1.2 Lokalizovan\u00e9 p\u0159eh\u0159\u00e1t\u00ed statoru<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Lok\u00e1ln\u00ed zkrat mezi statorov\u00fdmi k\u0159em\u00edkov\u00fdmi ocelov\u00fdmi lamelami<\/td><td>Odstra\u0148te p\u0159\u00ed\u010dinu zkratu; na opraven\u00e9 m\u00edsto naneste izola\u010dn\u00ed lak<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-3-stator-winding-localized-overheating\">1.3 Lokalizovan\u00e9 p\u0159eh\u0159\u00e1t\u00ed vinut\u00ed statoru<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Chyba zapojen\u00ed do troj\u00faheln\u00edku\/hv\u011bzdy (\u0394\/Y).<\/td><td>Zkontrolujte a opravte konfiguraci zapojen\u00ed<\/td><\/tr><tr><td>Dva body v jednom f\u00e1zov\u00e9m vinut\u00ed zkratovan\u00e9 k pouzdru<\/td><td>Opravte po\u0161kozen\u00e9 f\u00e1zov\u00e9 vinut\u00ed<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-4-rotor-temperature-rises-stator-draws-high-current-motor-wont-reach-full-speed-at-rated-load\">1.4 Teplota rotoru stoup\u00e1, stator odeb\u00edr\u00e1 vysok\u00fd proud, motor nedosahuje pln\u00fdch ot\u00e1\u010dek p\u0159i jmenovit\u00e9m zat\u00ed\u017een\u00ed<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>\u0160patn\u00fd kontakt na svork\u00e1ch vinut\u00ed, v neutr\u00e1ln\u00edm bod\u011b nebo ve paraleln\u00edch vinut\u00edch<\/td><td>Kontrola a oprava p\u00e1jen\u00fdch spoj\u016f<\/td><\/tr><tr><td>\u0160patn\u00fd kontakt mezi vinut\u00edm a sb\u011brn\u00fdm krou\u017ekem<\/td><td>Zkontrolujte a opravte p\u0159ipojen\u00ed<\/td><\/tr><tr><td>\u0160patn\u00fd kontakt v mechanismu kart\u00e1\u010de<\/td><td>Kontrola a se\u0159\u00edzen\u00ed p\u0159evodu kart\u00e1\u010de<\/td><\/tr><tr><td>\u0160patn\u00fd kontakt v obvodu rotoru<\/td><td>Zkontrolujte uvoln\u011bn\u00ed nebo \u0161patn\u00fd kontakt; otestujte odpor, v p\u0159\u00edpad\u011b p\u0159eru\u0161en\u00ed obvodu vym\u011b\u0148te<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-5-motor-vibration-during-operation\">1.5 Vibrace motoru b\u011bhem provozu<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>H\u0159\u00eddel motoru a h\u0159\u00eddel reduktoru nejsou soust\u0159edn\u00e9<\/td><td>Vyrovn\u00e1n\u00ed h\u0159\u00eddel\u00ed<\/td><\/tr><tr><td>Po\u0161kozen\u00ed nebo opot\u0159eben\u00ed lo\u017eiska<\/td><td>Vym\u011b\u0148te lo\u017eisko<\/td><\/tr><tr><td>Deformace rotoru<\/td><td>Kontrola a oprava rotoru<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-6-abnormal-noise-during-operation\">1.6 Abnorm\u00e1ln\u00ed hluk b\u011bhem provozu<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>F\u00e1zov\u00fd posun statoru (chyba zapojen\u00ed)<\/td><td>Zkontrolujte a opravte zapojen\u00ed<\/td><\/tr><tr><td>J\u00e1dro statoru nen\u00ed pevn\u011b stla\u010deno<\/td><td>Zkontrolujte stator a opravte jej<\/td><\/tr><tr><td>Opot\u0159eben\u00ed lo\u017eiska<\/td><td>Vym\u011b\u0148te lo\u017eisko<\/td><\/tr><tr><td>Roz\u0161\u00ed\u0159en\u00ed dr\u00e1\u017ekov\u00e9ho kl\u00ednu<\/td><td>Od\u0159\u00edzn\u011bte roz\u0161\u00ed\u0159enou kl\u00ednovou \u010d\u00e1st nebo ji vym\u011b\u0148te<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-7-motor-speed-drops-under-load\">1.7 Pokles ot\u00e1\u010dek motoru p\u0159i zat\u00ed\u017een\u00ed<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Zkrat na p\u0159\u00edpojk\u00e1ch na konci rotoru<\/td><td>Lokalizace a odstran\u011bn\u00ed zkratu<\/td><\/tr><tr><td>Vinut\u00ed rotoru uzemn\u011bn\u00e9 ve dvou bodech<\/td><td>Zkontrolujte ka\u017edou c\u00edvku, opravte po\u0161kozenou izolaci<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-8-rotor-rubbing-against-stator-during-operation\">1.8 T\u0159en\u00ed rotoru o stator b\u011bhem provozu<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Opot\u0159ebovan\u00e9 lo\u017eisko, \u0161patn\u011b vyrovnan\u00fd koncov\u00fd kryt, deformovan\u00e9 j\u00e1dro statoru nebo rotoru<\/td><td>Vym\u011b\u0148te vadn\u00e9 lo\u017eisko; opravte polohu koncov\u00e9ho krytu; odstra\u0148te ot\u0159epy z j\u00e1dra statoru\/rotoru<\/td><\/tr><tr><td>Nespr\u00e1vn\u00e9 zapojen\u00ed vinut\u00ed statoru zp\u016fsobuj\u00edc\u00ed magnetickou nerovnov\u00e1hu<\/td><td>Zkontrolujte a opravte zapojen\u00ed c\u00edvek; ov\u011b\u0159te, \u017ee proud v ka\u017ed\u00e9 f\u00e1zi je stejn\u00fd<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-9-sparking-at-brushes-or-scorched-slip-rings\">1.9 Jisk\u0159en\u00ed na kart\u00e1\u010d\u00edch nebo op\u00e1len\u00fdch sb\u011brn\u00fdch krou\u017ec\u00edch<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>\u0160patn\u011b usazen\u00e9 kart\u00e1\u010de<\/td><td>Znovu usa\u010fte kart\u00e1\u010de brou\u0161en\u00edm<\/td><\/tr><tr><td>Kart\u00e1\u010de p\u0159\u00edli\u0161 voln\u00e9 v dr\u017e\u00e1c\u00edch<\/td><td>Upravte usazen\u00ed kart\u00e1\u010de nebo jej vym\u011b\u0148te za kart\u00e1\u010d spr\u00e1vn\u00e9 velikosti<\/td><\/tr><tr><td>Zne\u010di\u0161t\u011bn\u00e9 kart\u00e1\u010de a sb\u011brn\u00e9 krou\u017eky<\/td><td>O\u010dist\u011bte sb\u011brn\u00e9 krou\u017eky alkoholem<\/td><\/tr><tr><td>Nerovn\u00fd povrch sb\u011brac\u00edho krou\u017eku zp\u016fsobuj\u00edc\u00ed odskakov\u00e1n\u00ed kart\u00e1\u010d\u016f<\/td><td>Obr\u00e1b\u011bn\u00ed a le\u0161t\u011bn\u00ed povrchu sb\u011brac\u00edho krou\u017eku<\/td><\/tr><tr><td>Nedostate\u010dn\u00fd p\u0159\u00edtlak kart\u00e1\u010de<\/td><td>Upravte na 18\u201320 kPa<\/td><\/tr><tr><td>Nespr\u00e1vn\u00e1 t\u0159\u00edda kart\u00e1\u010de<\/td><td>Nahra\u010fte spr\u00e1vnou specifikac\u00ed<\/td><\/tr><tr><td>Nerovnom\u011brn\u00e9 rozlo\u017een\u00ed proudu mezi kart\u00e1\u010di<\/td><td>Zkontrolujte p\u0159ipojen\u00ed podava\u010de dr\u017e\u00e1ku kart\u00e1\u010d\u016f a opravte je<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-10-slip-ring-open-circuit\">1.10 Obvod s rozpojen\u00fdm sb\u011brn\u00fdm krou\u017ekem<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Zne\u010di\u0161t\u011bn\u00e1 sestava sb\u011brac\u00edho krou\u017eku a kart\u00e1\u010de<\/td><td>D\u016fkladn\u011b vy\u010dist\u011bte<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-ac-electromagnet-failures\">2. Poruchy st\u0159\u00eddav\u00e9ho elektromagnetu<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-1-coil-overheating\">2.1 P\u0159eh\u0159\u00e1t\u00ed c\u00edvky<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>P\u0159et\u00ed\u017een\u00ed elektromagnetu (nadm\u011brn\u00e1 s\u00edla pru\u017einy)<\/td><td>Nastaven\u00ed nap\u011bt\u00ed pru\u017einy<\/td><\/tr><tr><td>Mezi pevn\u00fdmi a pohybliv\u00fdmi \u010d\u00e1stmi magnetick\u00e9ho obvodu existuje mezera<\/td><td>Odstra\u0148te mezeru<\/td><\/tr><tr><td>Nap\u011bt\u00ed c\u00edvky neodpov\u00edd\u00e1 nap\u00e1jec\u00edmu nap\u011bt\u00ed<\/td><td>Vym\u011b\u0148te c\u00edvku nebo zm\u011b\u0148te zp\u016fsob p\u0159ipojen\u00ed<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-2-excessive-humming-noise-during-operation\">2.2 Nadm\u011brn\u00e9 hu\u010den\u00ed\/hluk b\u011bhem provozu<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Elektromagnet p\u0159et\u00ed\u017een\u00fd<\/td><td>Nastaven\u00ed nap\u011bt\u00ed pru\u017einy<\/td><\/tr><tr><td>Ne\u010distoty na pracovn\u00edch ploch\u00e1ch magnetick\u00e9ho obvodu<\/td><td>D\u016fkladn\u011b vy\u010dist\u011bte<\/td><\/tr><tr><td>\u0160patn\u00e9 zarovn\u00e1n\u00ed magnetick\u00e9ho syst\u00e9mu<\/td><td>Se\u0159\u00edzen\u00ed mechanick\u00fdch sou\u010d\u00e1st\u00ed brzd, oprava nesouososti<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-3-unable-to-overcome-spring-force\">2.3 Nelze p\u0159ekonat s\u00edlu pru\u017einy<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Elektromagnet p\u0159et\u00ed\u017een\u00fd \/ P\u0159\u00edli\u0161 vysok\u00e1 s\u00edla hlavn\u00ed pru\u017einy<\/td><td>Se\u0159\u00edzen\u00ed nap\u011bt\u00ed hlavn\u00ed brzdov\u00e9 pru\u017einy<\/td><\/tr><tr><td>N\u00edzk\u00e9 nap\u00e1jec\u00ed nap\u011bt\u00ed<\/td><td>P\u0159eru\u0161te provoz, dokud se neobnov\u00ed nap\u011bt\u00ed<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-ac-contactor-and-relay-failures\">3. Poruchy styka\u010d\u016f a rel\u00e9 st\u0159\u00eddav\u00e9ho proudu<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-1-coil-overheating\">3.1 P\u0159eh\u0159\u00e1t\u00ed c\u00edvky<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>C\u00edvka p\u0159et\u00ed\u017een\u00e1<\/td><td>Sni\u017ete tlak pohybliv\u00e9ho kontaktu oproti pevn\u00e9mu kontaktu<\/td><\/tr><tr><td>Pohybliv\u00e1 \u010d\u00e1st magnetick\u00e9ho obvodu nedosahuje na pevnou \u010d\u00e1st<\/td><td>Odstra\u0148te nesouosost, zasek\u00e1v\u00e1n\u00ed, ne\u010distoty; v p\u0159\u00edpad\u011b po\u0161kozen\u00ed vym\u011b\u0148te c\u00edvku.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-2-excessive-contactor-buzzing\">3.2 Nadm\u011brn\u00e9 bzu\u010den\u00ed styka\u010de<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>C\u00edvka p\u0159et\u00ed\u017een\u00e1<\/td><td>Sni\u017ete kontaktn\u00ed tlak<\/td><\/tr><tr><td>Ne\u010distoty na povr\u0161\u00edch magnetick\u00fdch obvod\u016f<\/td><td>\u010cist\u00e9 povrchy<\/td><\/tr><tr><td>Zasek\u00e1v\u00e1n\u00ed v syst\u00e9mu samonastavov\u00e1n\u00ed magnetick\u00e9 dr\u00e1hy<\/td><td>Odstra\u0148te p\u0159ek\u00e1\u017eku<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-3-contact-overheating-or-burned-destroyed\">3.3 P\u0159eh\u0159\u00e1t\u00ed nebo sp\u00e1len\u00ed\/zni\u010den\u00ed kontaktu<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Nedostate\u010dn\u00fd p\u0159\u00edtlak<\/td><td>Upravte tlak<\/td><\/tr><tr><td>\u0160pinav\u00e9 kontakty<\/td><td>Vy\u010dist\u011bte nebo vym\u011b\u0148te<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-4-main-contactor-wont-engage\">3.4 Hlavn\u00ed styka\u010d se nezapne<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>No\u017eov\u00fd sp\u00edna\u010d nebo nouzov\u00fd sp\u00edna\u010d nen\u00ed sepnut\u00fd<\/td><td>Zav\u0159ete sp\u00edna\u010de<\/td><\/tr><tr><td>Sp\u00edna\u010d poklopu\/p\u0159\u00edstupov\u00fdch dve\u0159\u00ed otev\u0159en\u00fd<\/td><td>Zav\u0159ete sp\u00edna\u010d dve\u0159\u00ed<\/td><\/tr><tr><td>Rukoje\u0165 ovlada\u010de nen\u00ed v nulov\u00e9 poloze<\/td><td>Vr\u00e1tit rukoje\u0165 na nulu<\/td><\/tr><tr><td>Pojistka \u0159\u00eddic\u00edho obvodu p\u0159ep\u00e1len\u00e1<\/td><td>Zkontrolujte nebo vym\u011b\u0148te pojistku<\/td><\/tr><tr><td>\u017d\u00e1dn\u00e9 nap\u011bt\u00ed na s\u00edti<\/td><td>Zkontrolujte s\u00ed\u0165ov\u00e9 nap\u00e1jen\u00ed<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-5-frequent-tripping-during-crane-operation\">3.5 \u010cast\u00e9 zap\u00edn\u00e1n\u00ed b\u011bhem provozu je\u0159\u00e1bu<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Nedostate\u010dn\u00fd p\u0159\u00edtlak<\/td><td>Nastaven\u00ed p\u0159\u00edtlaku<\/td><\/tr><tr><td>Sp\u00e1len\u00e9 kontakty<\/td><td>Vym\u011b\u0148te kontakty nebo je obruste a opravte<\/td><\/tr><tr><td>\u0160pinav\u00e9 kontakty<\/td><td>\u010cist\u00fd<\/td><\/tr><tr><td>P\u0159et\u00ed\u017een\u00ed zp\u016fsobuj\u00edc\u00ed nadm\u011brn\u00fd proud<\/td><td>Sni\u017ete z\u00e1t\u011b\u017e<\/td><\/tr><tr><td>\u0160patn\u00fd kontakt mezi kolektorem a nap\u00e1jec\u00ed kolejnic\u00ed<\/td><td>Oprava kolejnicov\u00e9ho nebo p\u0159\u00edkopov\u00e9ho syst\u00e9mu vodi\u010d\u016f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-hydraulic-electromagnet-thruster-failures\">4. Poruchy hydraulick\u00e9ho elektromagnetu (pohonn\u00e9ho za\u0159\u00edzen\u00ed)<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"4-1-push-rod-wont-move-after-power-on\">4.1 Tlakov\u00e1 ty\u010d se po zapnut\u00ed nepohybuje<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Zaseknut\u00e1 tla\u010dn\u00e1 ty\u010d<\/td><td>Odstra\u0148te p\u0159ek\u00e1\u017eku<\/td><\/tr><tr><td>Nap\u00e1jec\u00ed nap\u011bt\u00ed pod 85% jmenovit\u00e9ho<\/td><td>Zvy\u0161te nap\u011bt\u00ed na jmenovitou \u00farove\u0148<\/td><\/tr><tr><td>\u010casov\u00e9 rel\u00e9 (na k\u0159em\u00edkov\u00e9m usm\u011br\u0148ova\u010di ZLO) nastaveno p\u0159\u00edli\u0161 kr\u00e1tce<\/td><td>Nastavte na p\u0159ibli\u017en\u011b 0,5 s<\/td><\/tr><tr><td>Usm\u011br\u0148ovac\u00ed jednotka nefunguje<\/td><td>Oprava nebo v\u00fdm\u011bna<\/td><\/tr><tr><td>Po\u0161kozen\u00e1 usm\u011br\u0148ovac\u00ed jednotka<\/td><td>Oprava nebo v\u00fdm\u011bna<\/td><\/tr><tr><td>\u010casov\u00e9 rel\u00e9 - norm\u00e1ln\u011b otev\u0159en\u00fd kontakt se nezap\u00edn\u00e1<\/td><td>Zkontrolujte a opravte kontakt<\/td><\/tr><tr><td>\u017d\u00e1dn\u00fd olej nebo z\u00e1va\u017en\u00fd \u00fanik oleje<\/td><td>Oprava t\u011bsn\u011bn\u00ed, dopln\u011bn\u00ed oleje<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"4-2-push-rod-stroke-too-short\">4.2 Zdvih tla\u010dn\u00e9 ty\u010de je p\u0159\u00edli\u0161 kr\u00e1tk\u00fd<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Nedostatek oleje<\/td><td>Dopl\u0148te olej<\/td><\/tr><tr><td>Vzduch zachycen\u00fd mezi p\u00edstem a lo\u017eiskem<\/td><td>Odvzdu\u0161n\u011bn\u00ed<\/td><\/tr><tr><td>P\u0159\u00edli\u0161 n\u00edzk\u00e9 nastaven\u00ed zdvihu<\/td><td>Vhodn\u011b upravte zdvih<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"4-3-stroke-gradually-decreases-after-operation\">4.3 Zdvih se po operaci postupn\u011b sni\u017euje<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>\u00danik oleje z v\u00e1lce<\/td><td>Vym\u011b\u0148te v\u00e1lec<\/td><\/tr><tr><td>Disk ventilu ozuben\u00e9ho typu nebo disk ventilu s pohybliv\u00fdm j\u00e1drem net\u011bsn\u00ed spr\u00e1vn\u011b<\/td><td>Odstra\u0148te mechanick\u00e9 ne\u010distoty z ventilov\u00fdch kotou\u010d\u016f<\/td><\/tr><tr><td>T\u011bsnic\u00ed krou\u017eek siln\u011b po\u0161kozen<\/td><td>Vym\u011b\u0148te t\u011bsnic\u00ed krou\u017eek<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"4-4-start-up-time-too-long\">4.4 P\u0159\u00edli\u0161 dlouh\u00e1 doba spou\u0161t\u011bn\u00ed<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>P\u0159\u00edli\u0161 n\u00edzk\u00e9 nap\u011bt\u00ed<\/td><td>Zvy\u0161te nap\u011bt\u00ed<\/td><\/tr><tr><td>Zaseknut\u00e9 pohybliv\u00e9 \u010d\u00e1sti<\/td><td>Odstra\u0148te p\u0159ek\u00e1\u017eku<\/td><\/tr><tr><td>P\u0159\u00edli\u0161 vysok\u00fd brzdn\u00fd moment brzdy<\/td><td>Upravte brzdn\u00fd moment na jmenovitou hodnotu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"4-5-braking-time-too-long\">4.5 P\u0159\u00edli\u0161 dlouh\u00e1 doba brzd\u011bn\u00ed<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Kontakt \u010dasov\u00e9ho rel\u00e9 se nerozpoj\u00ed<\/td><td>Zkontrolujte a opravte kontakt<\/td><\/tr><tr><td>Zaseknut\u00e9 pohybliv\u00e9 \u010d\u00e1sti<\/td><td>Odstra\u0148te p\u0159ek\u00e1\u017eku<\/td><\/tr><tr><td>Zablokovan\u00fd pr\u016fchod oleje<\/td><td>Voln\u00fd pr\u016fchod oleje<\/td><\/tr><tr><td>Mechanick\u00e1 z\u00e1vada v brzdov\u00e9m syst\u00e9mu<\/td><td>Oprava mechanick\u00e9 z\u00e1vady<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"part-2-control-and-circuit-system-failures\">\u010c\u00e1st 2: Poruchy \u0159\u00eddic\u00edho a obvodov\u00e9ho syst\u00e9mu<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/2Overhead-Crane-Electrical-System-Failures-Electromagnet.jpg\" alt=\"\" class=\"wp-image-11540\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/2Overhead-Crane-Electrical-System-Failures-Electromagnet.jpg 600w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/2Overhead-Crane-Electrical-System-Failures-Electromagnet-150x150.jpg 150w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-protection-box-knife-switch-closed-\u2192-control-circuit-fuse-blows\">1. No\u017eov\u00fd sp\u00edna\u010d ochrann\u00e9 sk\u0159\u00edn\u011b sepnut\u00fd \u2192 P\u0159ep\u00e1len\u00e1 pojistka \u0159\u00eddic\u00edho obvodu<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>F\u00e1zov\u00fd zkrat v \u0159\u00eddic\u00edm obvodu<\/td><td>Pomoc\u00ed megaohmmetru vyhledejte uzemn\u011bnou f\u00e1zi a odstra\u0148te ji.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-over-current-relay-trips-when-controller-engaged\">2. Nadproudov\u00e9 rel\u00e9 se vypne, kdy\u017e je regul\u00e1tor zapnut\u00fd<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Nespr\u00e1vn\u00e9 nastaven\u00ed rel\u00e9 pro motor<\/td><td>Upravte nastaven\u00ed: I_set = (2,25\u20132,5) \u00d7 I_rated<\/td><\/tr><tr><td>Zaseknut\u00ed mechanick\u00e9 p\u0159evodovky zp\u016fsobuj\u00edc\u00ed p\u0159et\u00ed\u017een\u00ed motoru<\/td><td>Lokalizace a odstran\u011bn\u00ed mechanick\u00e9 p\u0159ek\u00e1\u017eky<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-main-contactor-engages-\u2192-incoming-line-fuse-blows\">3. Hlavn\u00ed styka\u010d se zapne \u2192 P\u0159ep\u00e1l\u00ed se pojistka vstupn\u00edho veden\u00ed<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>F\u00e1zov\u00e9 zkraty na dan\u00e9 f\u00e1zi<\/td><td>Lokalizace a odstran\u011bn\u00ed zemn\u00edho zkratu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-controller-engaged-but-motor-doesnt-rotate\">4. \u0158\u00eddic\u00ed jednotka je zapnut\u00e1, ale motor se neot\u00e1\u010d\u00ed<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Jedna f\u00e1ze p\u0159eru\u0161ena \u2013 motor hu\u010d\u00ed<\/td><td>Lokalizujte p\u0159eru\u0161en\u00ed a znovu jej spojte<\/td><\/tr><tr><td>Rozpojen\u00fd obvod rotoru<\/td><td>Lokalizujte p\u0159eru\u0161en\u00ed a znovu jej spojte<\/td><\/tr><tr><td>\u017d\u00e1dn\u00e9 nap\u011bt\u00ed na s\u00edti<\/td><td>Lokalizujte p\u0159eru\u0161en\u00ed a znovu jej spojte<\/td><\/tr><tr><td>Kontakty \u0159\u00eddic\u00ed jednotky se ve skute\u010dnosti nedot\u00fdkaj\u00ed<\/td><td>Zkontrolujte a opravte ovlada\u010d<\/td><\/tr><tr><td>Porucha kart\u00e1\u010de sb\u011bra\u010de<\/td><td>Kontrola a oprava kolektoru<\/td><\/tr><tr><td>Porucha brzdy \u2013 nejde ji uvolnit<\/td><td>Kontrola a oprava brzdy<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Rychl\u00e1 kontrola:<\/strong> Pokud motor hu\u010d\u00ed, ale neot\u00e1\u010d\u00ed se, jedn\u00e1 se t\u00e9m\u011b\u0159 v\u017edy o jednof\u00e1zov\u00fd probl\u00e9m. Nejprve zkontrolujte nap\u00e1jen\u00ed a zapojen\u00ed obvodu rotoru.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"5-controller-engaged-\u2192-motor-runs-in-one-direction-only\">5. \u0158\u00eddic\u00ed jednotka zapnuta \u2192 Motor b\u011b\u017e\u00ed pouze v jednom sm\u011bru<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>\u0160patn\u00e9 kontakty pro zp\u011btn\u00fd sm\u011br ot\u00e1\u010den\u00ed regul\u00e1toru nebo vadn\u00e9 mechanick\u00e9 blokov\u00e1n\u00ed<\/td><td>Zkontrolujte ovlada\u010d, se\u0159i\u010fte kontakty<\/td><\/tr><tr><td>Porucha v rozvodn\u00e9 elektroinstalaci<\/td><td>Pou\u017eijte metodu spojovac\u00edho dr\u00e1tu k lokalizaci a oprav\u011b z\u00e1vady<\/td><\/tr><tr><td>Pojezdov\u00fd mechanismus v krajn\u00ed poloze, koncov\u00fd sp\u00edna\u010d aktivov\u00e1n<\/td><td>M\u016f\u017ee b\u011b\u017eet pouze jedn\u00edm sm\u011brem \u2013 norm\u00e1ln\u00ed chov\u00e1n\u00ed<\/td><\/tr><tr><td>Porucha koncov\u00e9ho sp\u00edna\u010de<\/td><td>Zkontrolujte koncov\u00fd sp\u00edna\u010d a odstra\u0148te z\u00e1vadu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"6-limit-switch-activated-\u2192-main-contactor-wont-release\">6. Koncov\u00fd sp\u00edna\u010d aktivov\u00e1n \u2192 Hlavn\u00ed styka\u010d se neuvoln\u00ed<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>P\u0159eru\u0161en\u00fd obvod v obvodu koncov\u00e9ho sp\u00edna\u010de<\/td><td>Zkontrolujte a opravte p\u0159eru\u0161en\u00fd obvod<\/td><\/tr><tr><td>\u0160patn\u00e9 zapojen\u00ed kabel\u00e1\u017ee k \u0159\u00eddic\u00ed jednotce<\/td><td>Spr\u00e1vn\u00e9 zapojen\u00ed<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"7-controller-returned-to-off-\u2192-main-contactor-wont-release\">7. Regul\u00e1tor se vr\u00e1til do polohy Vypnuto \u2192 Hlavn\u00ed styka\u010d se neuvol\u0148uje<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Vadn\u00fd areta\u010dn\u00ed mechanismus<\/td><td>Opravte z\u00e1padku<\/td><\/tr><tr><td>Kontakty zaseknut\u00e9 v zh\u00e1\u0161ec\u00ed komor\u011b<\/td><td>Upravte polohu kontaktu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"8-controller-handle-jammed-during-operation\">8. Rukoje\u0165 ovlada\u010de se b\u011bhem provozu zasekla<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Vadn\u00fd areta\u010dn\u00ed mechanismus<\/td><td>Nastaven\u00ed areta\u010dn\u00edho tlaku<\/td><\/tr><tr><td>Kontakty sva\u0159en\u00e9 dohromady<\/td><td>Vy\u010di\u0161t\u011bn\u00ed kontakt\u016f soubor\u016f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"9-generator-fails-to-excite-for-crane-with-onboard-generator-set\">9. Gener\u00e1tor selh\u00e1v\u00e1 (u je\u0159\u00e1bu s integrovan\u00fdm gener\u00e1torov\u00fdm agreg\u00e1tem)<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Budic\u00ed obvod otev\u0159en\u00fd<\/td><td>Zkontrolujte budic\u00ed obvod<\/td><\/tr><tr><td>Gener\u00e1tor se ot\u00e1\u010d\u00ed v opa\u010dn\u00e9m sm\u011bru<\/td><td>Proho\u010fte dv\u011b f\u00e1ze zapojen\u00ed rotoru pohonn\u00e9ho obvodu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"10-power-cut-but-protection-box-contactor-wont-drop-out-control-circuit-de-energized\">10. V\u00fdpadek proudu, ale styka\u010d ochrann\u00e9 sk\u0159\u00edn\u011b se nerozpoj\u00ed (\u0159\u00eddic\u00ed obvod je bez nap\u00e1jen\u00ed)<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th><th>N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Uzemn\u011bn\u00ed nebo zkrat n\u011bkde v \u0159\u00eddic\u00edm obvodu<\/td><td>Lokalizovat a eliminovat<\/td><\/tr><tr><td>Kontakty styka\u010de sva\u0159en\u00e9 \u2013 hlavn\u00ed obvod z\u016fst\u00e1v\u00e1 pod nap\u011bt\u00edm<\/td><td>Zapi\u0161te sp\u00e1len\u00e9 kontakty pro obnoven\u00ed spr\u00e1vn\u00e9ho kontaktu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"quick-diagnostic-flow-for-overhead-crane-electrical-problems\">Rychl\u00fd diagnostick\u00fd postup pro elektrick\u00e9 probl\u00e9my s mostov\u00fdm je\u0159\u00e1bem<\/h2>\n\n\n\n<p>P\u0159i odstra\u0148ov\u00e1n\u00ed elektrick\u00fdch z\u00e1vad dodr\u017eujte p\u0159ed otev\u0159en\u00edm jak\u00e9hokoli panelu tento postup:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1532\" height=\"904\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/Quick-Diagnostic-Flow-for-Overhead-Crane-Electrical-Problems.png\" alt=\"\" class=\"wp-image-11558\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"replace-vs-repair-guide-for-crane-electrical-components\">Pr\u016fvodce v\u00fdm\u011bnou vs. opravou elektrick\u00fdch komponent je\u0159\u00e1bu<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Komponent<\/th><th>Nahradit<\/th><th>Oprava mo\u017en\u00e1<\/th><\/tr><\/thead><tbody><tr><td>Motor se sp\u00e1len\u00fdm vinut\u00edm<\/td><td>\u2713<\/td><td>\u2014<\/td><\/tr><tr><td>Motor pouze s opot\u0159ebovan\u00fdmi lo\u017eisky<\/td><td>\u2014<\/td><td>\u2713 Vym\u011b\u0148te lo\u017eisko<\/td><\/tr><tr><td>Sp\u00e1len\u00e9\/sva\u0159en\u00e9 kontakty styka\u010de<\/td><td>\u2713 (pokud je z\u00e1va\u017en\u00fd)<\/td><td>\u2713 Zapilov\u00e1n\u00ed a \u010di\u0161t\u011bn\u00ed (drobn\u00e9)<\/td><\/tr><tr><td>Op\u00e1len\u00fd sb\u011brac\u00ed krou\u017eek<\/td><td>\u2014<\/td><td>\u2713 Strojn\u00ed le\u0161t\u011bn\u00ed<\/td><\/tr><tr><td>Po\u0161kozen\u00e1 usm\u011br\u0148ovac\u00ed jednotka<\/td><td>\u2713<\/td><td>\u2014<\/td><\/tr><tr><td>Sp\u00e1len\u00e1 pojistka<\/td><td>\u2713<\/td><td>\u2014 (nejprve diagnostikujte p\u0159\u00ed\u010dinu)<\/td><\/tr><tr><td>Zaseknut\u00fd\/zaseknut\u00fd elektromagnet<\/td><td>\u2014<\/td><td>\u2713 \u010ci\u0161t\u011bn\u00ed a maz\u00e1n\u00ed<\/td><\/tr><tr><td>Net\u011bsn\u00edc\u00ed v\u00e1lec hydraulick\u00e9ho pohonu<\/td><td>\u2713<\/td><td>\u2014<\/td><\/tr><tr><td>\u0160patn\u011b zarovnan\u00fd koncov\u00fd sp\u00edna\u010d<\/td><td>\u2014<\/td><td>\u2713 Upravte polohu<\/td><\/tr><tr><td>Sva\u0159en\u00e9 kontakty hlavn\u00edho styka\u010de<\/td><td>\u2713<\/td><td>\u2014<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"preventive-maintenance-for-overhead-crane-electrical-systems\">Preventivn\u00ed \u00fadr\u017eba elektrick\u00fdch syst\u00e9m\u016f mostov\u00fdch je\u0159\u00e1b\u016f<\/h2>\n\n\n\n<p>Prevence poruch elektrick\u00e9ho syst\u00e9mu mostov\u00e9ho je\u0159\u00e1bu je v\u00fdrazn\u011b n\u00e1kladov\u011b efektivn\u011bj\u0161\u00ed ne\u017e nouzov\u00e9 prostoje nebo v\u00fdm\u011bna sou\u010d\u00e1st\u00ed. Strukturovan\u00fd program \u00fadr\u017eby elektrick\u00fdch syst\u00e9m\u016f m\u016f\u017ee sn\u00ed\u017eit neo\u010dek\u00e1van\u00e9 odst\u00e1vky, zlep\u0161it bezpe\u010dnost je\u0159\u00e1bu a prodlou\u017eit \u017eivotnost za\u0159\u00edzen\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"inspect-electrical-connections-regularly\">Pravideln\u011b kontrolujte elektrick\u00e9 p\u0159ipojen\u00ed<\/h3>\n\n\n\n<p>Uvoln\u011bn\u00e9 svorky, po\u0161kozen\u00e9 vodi\u010de a \u0161patn\u00e9 uzemn\u011bn\u00ed pat\u0159\u00ed mezi nej\u010dast\u011bj\u0161\u00ed p\u0159\u00ed\u010diny elektrick\u00fdch poruch mostov\u00fdch je\u0159\u00e1b\u016f. Elektrick\u00e9 rozvad\u011b\u010de, vodi\u010dov\u00e9 syst\u00e9my a svorkovnice by m\u011bly b\u00fdt pravideln\u011b kontrolov\u00e1ny.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"monitor-motor-temperature\">Sledov\u00e1n\u00ed teploty motoru<\/h3>\n\n\n\n<p>P\u0159eh\u0159\u00e1t\u00ed motoru je hlavn\u00ed p\u0159\u00ed\u010dinou selh\u00e1n\u00ed motoru je\u0159\u00e1bu. Obsluha by m\u011bla sledovat n\u00e1r\u016fst teploty, neobvykl\u00e9 pachy, vibrace a odb\u011br proudu, aby v\u010das identifikovala abnorm\u00e1ln\u00ed provozn\u00ed podm\u00ednky.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-contactors-and-relays\">Zkontrolujte styka\u010de a rel\u00e9<\/h3>\n\n\n\n<p>\u010cast\u00e9 sp\u00ednac\u00ed cykly zp\u016fsobuj\u00ed opot\u0159eben\u00ed povrch\u016f styka\u010d\u016f. Sp\u00e1len\u00e9 nebo sva\u0159en\u00e9 kontakty mohou v\u00e9st k ob\u010dasn\u00fdm poruch\u00e1m nebo \u00fapln\u00e9mu elektrick\u00e9mu vypnut\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"test-limit-switches-and-safety-devices\">Testov\u00e1n\u00ed koncov\u00fdch sp\u00edna\u010d\u016f a bezpe\u010dnostn\u00edch za\u0159\u00edzen\u00ed<\/h3>\n\n\n\n<p>Vadn\u00e9 koncov\u00e9 sp\u00edna\u010de \u010dasto zp\u016fsobuj\u00ed neo\u010dek\u00e1van\u00e9 probl\u00e9my s zastaven\u00edm nebo zm\u011bnou sm\u011bru. Bezpe\u010dnostn\u00ed blokov\u00e1n\u00ed, syst\u00e9my nouzov\u00e9ho zastaven\u00ed a koncov\u00e9 sp\u00edna\u010de pojezdu by m\u011bly b\u00fdt pravideln\u011b testov\u00e1ny.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"follow-scheduled-electrical-inspections\">Dodr\u017eujte pl\u00e1novan\u00e9 elektroinstalace<\/h3>\n\n\n\n<p>Pravideln\u00e1 elektrick\u00e1 \u00fadr\u017eba mostov\u00e9ho je\u0159\u00e1bu by m\u011bla zahrnovat testov\u00e1n\u00ed izola\u010dn\u00edho odporu, ov\u011b\u0159en\u00ed \u0159\u00eddic\u00edho obvodu, kontrolu troleje a kontrolu brzdov\u00e9ho syst\u00e9mu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"need-expert-support-for-overhead-crane-electrical-system-failures\">Pot\u0159ebujete odbornou pomoc p\u0159i poruch\u00e1ch elektrick\u00e9ho syst\u00e9mu mostov\u00e9ho je\u0159\u00e1bu?<\/h2>\n\n\n\n<p>Ve spole\u010dnosti KUANGSHAN CRANE poskytujeme kompletn\u00ed elektrick\u00e1 \u0159e\u0161en\u00ed pro mostov\u00e9 je\u0159\u00e1by, v\u010detn\u011b motor\u016f, syst\u00e9m\u016f VFD, ovl\u00e1dac\u00edch panel\u016f, nap\u00e1jec\u00edch ty\u010d\u00ed, koncov\u00fdch sp\u00edna\u010d\u016f a kompletn\u00edch bal\u00ed\u010dk\u016f pro elektrifikaci je\u0159\u00e1b\u016f.<\/p>\n\n\n\n<p>Pokud se pot\u00fdk\u00e1te s opakuj\u00edc\u00edmi se poruchami elektrick\u00e9ho syst\u00e9mu mostov\u00e9ho je\u0159\u00e1bu, n\u00e1\u0161 technick\u00fd t\u00fdm v\u00e1m m\u016f\u017ee pomoci s diagnostikou z\u00e1vad, doporu\u010den\u00edm n\u00e1hradn\u00edch komponent\u016f a podporou modernizace elektrick\u00e9ho syst\u00e9mu pro zv\u00fd\u0161en\u00ed spolehlivosti a v\u00fdkonu.<\/p>","protected":false},"excerpt":{"rendered":"Poruchy elektrick\u00fdch syst\u00e9m\u016f mostov\u00fdch je\u0159\u00e1b\u016f jsou jednou z hlavn\u00edch p\u0159\u00ed\u010din prostoj\u016f je\u0159\u00e1b\u016f ve v\u00fdrobn\u00edch z\u00e1vodech, skladech, ocel\u00e1rn\u00e1ch a za\u0159\u00edzen\u00edch t\u011b\u017ek\u00e9ho pr\u016fmyslu. Ve srovn\u00e1n\u00ed s mechanick\u00fdmi poruchami je elektrick\u00e9 poruchy \u010dasto obt\u00ed\u017en\u011bj\u0161\u00ed diagnostikovat, proto\u017ee p\u0159\u00edznaky mohou b\u00fdt zav\u00e1d\u011bj\u00edc\u00ed. Nap\u0159\u00edklad motor, kter\u00fd se nespust\u00ed, m\u016f\u017ee b\u00fdt zp\u016fsoben [\u2026]","protected":false},"featured_media":11539,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[768],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/11538"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":4,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/11538\/revisions"}],"predecessor-version":[{"id":11559,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/11538\/revisions\/11559"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/media\/11539"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/media?parent=11538"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/posts_category?post=11538"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/posts_tag?post=11538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}