{"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\/ko\/posts\/overhead-crane-electrical-system-failures-causes-troubleshooting-repair-guide\/","title":{"rendered":"\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \uc2dc\uc2a4\ud15c \uace0\uc7a5: \uc6d0\uc778, \ubb38\uc81c \ud574\uacb0 \ubc0f \uc218\ub9ac \uac00\uc774\ub4dc"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>\ubaa9\ucc28<\/p><nav><ul><li><a href=\"#part-1-common-types-of-overhead-crane-electrical-system-failures\">\ud30c\ud2b8 1: \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \uc2dc\uc2a4\ud15c\uc758 \uc77c\ubc18\uc801\uc778 \uace0\uc7a5 \uc720\ud615<\/a><ul><li><a href=\"#1-ac-motor-failures\">1. \uad50\ub958 \ubaa8\ud130 \uace0\uc7a5<\/a><\/li><li><a href=\"#2-ac-electromagnet-failures\">2. \uad50\ub958 \uc804\uc790\uc11d \uace0\uc7a5<\/a><\/li><li><a href=\"#3-ac-contactor-and-relay-failures\">3. AC \uc811\ucd09\uae30 \ubc0f \uacc4\uc804\uae30 \uace0\uc7a5<\/a><\/li><li><a href=\"#4-hydraulic-electromagnet-thruster-failures\">4. \uc720\uc555 \uc804\uc790\uc11d(\ucd94\uc9c4\uae30) \uace0\uc7a5<\/a><\/li><\/ul><\/li><li><a href=\"#part-2-control-and-circuit-system-failures\">\ud30c\ud2b8 2: \uc81c\uc5b4 \ubc0f \ud68c\ub85c \uc2dc\uc2a4\ud15c \uc624\ub958<\/a><ul><li><a href=\"#1-protection-box-knife-switch-closed-\u2192-control-circuit-fuse-blows\">1. \ubcf4\ud638\ud568 \ub098\uc774\ud504 \uc2a4\uc704\uce58 \ub2eb\ud798 \u2192 \uc81c\uc5b4 \ud68c\ub85c \ud4e8\uc988 \ub2e8\uc120<\/a><\/li><li><a href=\"#2-over-current-relay-trips-when-controller-engaged\">2. \ucee8\ud2b8\ub864\ub7ec \uc791\ub3d9 \uc2dc \uacfc\uc804\ub958 \uacc4\uc804\uae30 \ud2b8\ub9bd<\/a><\/li><li><a href=\"#3-main-contactor-engages-\u2192-incoming-line-fuse-blows\">3. \uc8fc \uc811\ucd09\uae30 \uc791\ub3d9 \u2192 \uc785\ub825 \ub77c\uc778 \ud4e8\uc988 \ub2e8\uc120<\/a><\/li><li><a href=\"#4-controller-engaged-but-motor-doesnt-rotate\">4. \ucee8\ud2b8\ub864\ub7ec\ub294 \uc791\ub3d9\ud588\uc9c0\ub9cc \ubaa8\ud130\uac00 \ud68c\uc804\ud558\uc9c0 \uc54a\uc74c<\/a><\/li><li><a href=\"#5-controller-engaged-\u2192-motor-runs-in-one-direction-only\">5. \ucee8\ud2b8\ub864\ub7ec \uc791\ub3d9 \u2192 \ubaa8\ud130\ub294 \ud55c \ubc29\ud5a5\uc73c\ub85c\ub9cc \ud68c\uc804<\/a><\/li><li><a href=\"#6-limit-switch-activated-\u2192-main-contactor-wont-release\">6. \ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58 \uc791\ub3d9 \u2192 \uc8fc \uc811\ucd09\uae30\uac00 \ud574\uc81c\ub418\uc9c0 \uc54a\uc74c<\/a><\/li><li><a href=\"#7-controller-returned-to-off-\u2192-main-contactor-wont-release\">7. \uc81c\uc5b4\uae30\uac00 \uaebc\uc9d0 \uc704\uce58\ub85c \ub3cc\uc544\uac10 \u2192 \uc8fc \uc811\ucd09\uae30\uac00 \ud574\uc81c\ub418\uc9c0 \uc54a\uc74c<\/a><\/li><li><a href=\"#8-controller-handle-jammed-during-operation\">8. \uc791\ub3d9 \uc911 \ucee8\ud2b8\ub864\ub7ec \ud578\ub4e4\uc774 \uac78\ub838\uc2b5\ub2c8\ub2e4<\/a><\/li><li><a href=\"#9-generator-fails-to-excite-for-crane-with-onboard-generator-set\">9. \ubc1c\uc804\uae30 \uc5ec\uc790 \ubd88\ub7c9 (\uc628\ubcf4\ub4dc \ubc1c\uc804\uae30\uac00 \uc7a5\ucc29\ub41c \ud06c\ub808\uc778\uc758 \uacbd\uc6b0)<\/a><\/li><li><a href=\"#10-power-cut-but-protection-box-contactor-wont-drop-out-control-circuit-de-energized\">10. \uc815\uc804 \ubc1c\uc0dd \uc2dc \ubcf4\ud638 \ubc15\uc2a4 \uc811\ucd09\uae30\uac00 \ucc28\ub2e8\ub418\uc9c0 \uc54a\uc74c (\uc81c\uc5b4 \ud68c\ub85c \uc804\uc6d0 \ucc28\ub2e8\ub428)<\/a><\/li><\/ul><\/li><li><a href=\"#quick-diagnostic-flow-for-overhead-crane-electrical-problems\">\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \ubb38\uc81c\uc5d0 \ub300\ud55c \uc2e0\uc18d \uc9c4\ub2e8 \ud750\ub984\ub3c4<\/a><\/li><li><a href=\"#replace-vs-repair-guide-for-crane-electrical-components\">\ud06c\ub808\uc778 \uc804\uae30 \ubd80\ud488 \uad50\uccb4 vs \uc218\ub9ac \uac00\uc774\ub4dc<\/a><\/li><li><a href=\"#preventive-maintenance-for-overhead-crane-electrical-systems\">\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \uc2dc\uc2a4\ud15c \uc608\ubc29 \uc720\uc9c0\ubcf4\uc218<\/a><ul><li><a href=\"#inspect-electrical-connections-regularly\">\uc804\uae30 \uc5f0\uacb0\ubd80\ub97c \uc815\uae30\uc801\uc73c\ub85c \uc810\uac80\ud558\uc2ed\uc2dc\uc624.<\/a><\/li><li><a href=\"#monitor-motor-temperature\">\ubaa8\ud130 \uc628\ub3c4 \ubaa8\ub2c8\ud130\ub9c1<\/a><\/li><li><a href=\"#check-contactors-and-relays\">\uc811\ucd09\uae30 \ubc0f \ub9b4\ub808\uc774\ub97c \uc810\uac80\ud558\uc2ed\uc2dc\uc624.<\/a><\/li><li><a href=\"#test-limit-switches-and-safety-devices\">\ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58 \ubc0f \uc548\uc804 \uc7a5\uce58 \ud14c\uc2a4\ud2b8<\/a><\/li><li><a href=\"#follow-scheduled-electrical-inspections\">\uc815\uae30\uc801\uc778 \uc804\uae30 \uc810\uac80\uc744 \ubc1b\uc73c\uc2ed\uc2dc\uc624.<\/a><\/li><\/ul><\/li><li><a href=\"#need-expert-support-for-overhead-crane-electrical-system-failures\">\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \uc2dc\uc2a4\ud15c \uace0\uc7a5\uc5d0 \ub300\ud55c \uc804\ubb38\uac00 \uc9c0\uc6d0\uc774 \ud544\uc694\ud558\uc2ed\ub2c8\uae4c?<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778\uc758 \uc804\uae30 \uc2dc\uc2a4\ud15c \uace0\uc7a5\uc740 \uc81c\uc870 \uacf5\uc7a5, \ucc3d\uace0, \uc81c\ucca0\uc18c \ubc0f \uc911\uacf5\uc5c5 \uc2dc\uc124\uc5d0\uc11c \ud06c\ub808\uc778 \uac00\ub3d9 \uc911\ub2e8\uc744 \uc57c\uae30\ud558\ub294 \uc8fc\uc694 \uc6d0\uc778 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uae30\uacc4\uc801 \uacb0\ud568\uacfc \ube44\uad50\ud588\uc744 \ub54c, \uc804\uae30\uc801 \uace0\uc7a5\uc740 \uc99d\uc0c1\uc774 \ubaa8\ud638\ud558\uc5ec \uc9c4\ub2e8\uc774 \ub354\uc6b1 \uc5b4\ub824\uc6b4 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc608\ub97c \ub4e4\uc5b4, \ubaa8\ud130 \uc2dc\ub3d9 \ubd88\ub7c9\uc740 \uc811\ucd09\uae30 \uc18c\uc190, \ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58 \ubd88\ub7c9, \ud4e8\uc988 \ub2e8\uc120, \ub0ae\uc740 \uacf5\uae09 \uc804\uc555 \ub610\ub294 \ub2e8\uc21c\ud788 \uc804\uae30 \uc5f0\uacb0 \ubd88\ub7c9\uc73c\ub85c \uc778\ud574 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9c8\ucc2c\uac00\uc9c0\ub85c, \uacfc\uc5f4, \ube44\uc815\uc0c1\uc801\uc778 \uc9c4\ub3d9, \uc2a4\ud30c\ud06c \ubc1c\uc0dd \ubc0f \uac04\ud5d0\uc801\uc778 \uc791\ub3d9 \uc911\ub2e8\uc740 \ud06c\ub808\uc778 \uc804\uae30 \uc2dc\uc2a4\ud15c \ub0b4\ubd80\uc758 \ub354 \uc2ec\uac01\ud55c \ubb38\uc81c\ub97c \ub098\ud0c0\ub0b4\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uac00\uc7a5 \ud754\ud55c <a href=\"https:\/\/www.kscranegroup.com\/ko\/overhead-cranes\/\">\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778<\/a> \uc804\uae30 \uc2dc\uc2a4\ud15c \uace0\uc7a5\uc5d0\ub294 \ubaa8\ud130 \uacfc\uc5f4, \uc811\ucd09\uae30 \ubc0f \ub9b4\ub808\uc774 \uc190\uc0c1, \uc804\uc790\uc11d \uacb0\ud568, \uc81c\uc5b4 \ud68c\ub85c \uace0\uc7a5, \ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58 \uc624\uc791\ub3d9 \ubc0f \uc804\uc6d0 \uacf5\uae09 \ubb38\uc81c\uac00 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc774 \uac00\uc774\ub4dc\ub294 \uad6c\uc131 \uc694\uc18c \uc218\uc900 \uac80\uc0ac\ubd80\ud130 \uc804\uccb4 \uc81c\uc5b4 \ud68c\ub85c \ubd84\uc11d\uc5d0 \uc774\ub974\uae30\uae4c\uc9c0 \uccb4\uacc4\uc801\uc778 \uc9c4\ub2e8 \ubc29\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \uc2dc\uc2a4\ud15c \uace0\uc7a5\uc744 \uc2dd\ubcc4, \ubb38\uc81c \ud574\uacb0 \ubc0f \uc218\ub9ac\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/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\">\ud30c\ud2b8 1: \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \uc2dc\uc2a4\ud15c\uc758 \uc77c\ubc18\uc801\uc778 \uace0\uc7a5 \uc720\ud615<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-ac-motor-failures\">1. \uad50\ub958 \ubaa8\ud130 \uace0\uc7a5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-1-entire-motor-evenly-overheating\">1.1 \ubaa8\ud130 \uc804\uccb4\uac00 \uace0\ub974\uac8c \uacfc\uc5f4\ub428<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ub4c0\ud2f0 \uc0ac\uc774\ud074(JC%)\uc774 \uc99d\uac00\ud558\uc5ec \uacfc\ubd80\ud558\uac00 \ubc1c\uc0dd\ud588\uc2b5\ub2c8\ub2e4.<\/td><td>\ud06c\ub808\uc778 \uc791\uc5c5 \uac15\ub3c4\ub97c \ub0ae\ucd94\uac70\ub098 JC% \ubaa8\ub378\uc5d0 \uc801\ud569\ud55c \uc815\uaca9 \ubaa8\ud130\ub85c \uad50\uccb4\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\uc800\uc804\uc555\uc5d0\uc11c \uc791\ub3d9<\/td><td>\uc804\uc555\uc774 \uc815\uaca9\uac12\uc778 10% \ubbf8\ub9cc\uc73c\ub85c \ub5a8\uc5b4\uc9c0\uba74 \uc791\ub3d9\uc744 \uc911\uc9c0\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\uc6a9\ub3c4\uc5d0 \ub9de\uc9c0 \uc54a\ub294 \ubaa8\ud130 \uc120\ud0dd<\/td><td>\uc2e4\uc81c \ubd80\ud558 \ud2b9\uc131\uc5d0 \ub530\ub77c \uc801\uc808\ud55c \ubaa8\ud130\ub97c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\uc815\ube44 \ud6c4 \ubcc0\uacbd \uc0ac\ud56d\uc73c\ub85c \uc778\ud574 \ud06c\ub808\uc778 \uc131\ub2a5 \ub9e4\uac1c\ubcc0\uc218\uac00 \ubc14\ub00c\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><td>\uc6d0\ub798 \uc124\uacc4 \ub9e4\uac1c\ubcc0\uc218\ub97c \ubcf5\uc6d0\ud569\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-2-stator-localized-overheating\">1.2 \uace0\uc815\uc790 \uad6d\ubd80 \uacfc\uc5f4<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uace0\uc815\uc790 \uc2e4\ub9ac\ucf58 \uac15\ud310 \uc801\uce35\ud310 \uc0ac\uc774\uc758 \uad6d\ubd80 \ub2e8\ub77d<\/td><td>\ub2e8\ub77d \uc6d0\uc778\uc744 \uc81c\uac70\ud558\uace0, \uc218\ub9ac \ubd80\uc704\uc5d0 \uc808\uc5f0 \ubc14\ub2c8\uc2dc\ub97c \ub3c4\ud3ec\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-3-stator-winding-localized-overheating\">1.3 \uace0\uc815\uc790 \uad8c\uc120 \uad6d\ubd80 \uacfc\uc5f4<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ub378\ud0c0\/\uc2a4\ud0c0(\u0394\/Y) \ubc30\uc120 \uc624\ub958<\/td><td>\ubc30\uc120 \uad6c\uc131\uc744 \ud655\uc778\ud558\uace0 \uc218\uc815\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ud55c \uc0c1 \uad8c\uc120\uc758 \ub450 \uc9c0\uc810\uc774 \ud558\uc6b0\uc9d5\uc5d0 \ub2e8\ub77d\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><td>\uc190\uc0c1\ub41c \uc0c1 \uad8c\uc120\uc744 \uc218\ub9ac\ud558\uc2ed\uc2dc\uc624.<\/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 \ud68c\uc804\uc790 \uc628\ub3c4 \uc0c1\uc2b9, \uace0\uc815\uc790 \uc804\ub958 \uacfc\ub2e4 \ubc1c\uc0dd, \uc815\uaca9 \ubd80\ud558\uc5d0\uc11c \ubaa8\ud130\uac00 \ucd5c\ub300 \uc18d\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\uc9c0 \ubabb\ud568<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uad8c\uc120 \ub2e8\uc790, \uc911\uc131\uc810 \ub610\ub294 \ubcd1\ub82c \uad8c\uc120\uc758 \uc811\ucd09 \ubd88\ub7c9<\/td><td>\ub0a9\ub55c \uc811\ud569\ubd80\ub97c \uac80\uc0ac\ud558\uace0 \uc218\ub9ac\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uad8c\uc120\uacfc \uc2ac\ub9bd\ub9c1 \uc0ac\uc774\uc758 \uc811\ucd09 \ubd88\ub7c9<\/td><td>\uc5f0\uacb0 \uc0c1\ud0dc\ub97c \uc810\uac80\ud558\uace0 \uc218\ub9ac\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ube0c\ub7ec\uc2dc \uba54\ucee4\ub2c8\uc998 \uc811\ucd09 \ubd88\ub7c9<\/td><td>\ube0c\ub7ec\uc2dc \uae30\uc5b4\ub97c \uc810\uac80\ud558\uace0 \uc870\uc815\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ub85c\ud130 \ud68c\ub85c \uc811\ucd09 \ubd88\ub7c9<\/td><td>\uc811\ucd09 \ubd88\ub7c9\uc774\ub098 \uc811\ucd09 \ubd88\ub7c9\uc744 \uc810\uac80\ud558\uace0, \uc800\ud56d\uc744 \uce21\uc815\ud558\uc5ec \ub2e8\uc120 \uc2dc \uad50\uccb4\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-5-motor-vibration-during-operation\">1.5 \uc791\ub3d9 \uc911 \ubaa8\ud130 \uc9c4\ub3d9<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ubaa8\ud130 \ucd95\uacfc \uac10\uc18d\uae30 \ucd95\uc774 \ub3d9\uc2ec\uc6d0\uc774 \uc544\ub2c8\ub2e4.<\/td><td>\uc0e4\ud504\ud2b8 \uc7ac\uc815\ub82c<\/td><\/tr><tr><td>\ubca0\uc5b4\ub9c1 \uc190\uc0c1 \ub610\ub294 \ub9c8\ubaa8<\/td><td>\ubca0\uc5b4\ub9c1 \uad50\uccb4<\/td><\/tr><tr><td>\ub85c\ud130 \ubcc0\ud615<\/td><td>\ub85c\ud130\ub97c \uc810\uac80\ud558\uace0 \uc218\ub9ac\ud558\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-6-abnormal-noise-during-operation\">1.6 \uc791\ub3d9 \uc911 \ubc1c\uc0dd\ud558\ub294 \ube44\uc815\uc0c1\uc801\uc778 \uc18c\uc74c<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uace0\uc815\uc790 \uc704\uc0c1\ucc28(\ubc30\uc120 \uc624\ub958)<\/td><td>\ubc30\uc120\uc744 \uc810\uac80\ud558\uace0 \uc218\uc815\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\uace0\uc815\uc790 \ucf54\uc5b4\uac00 \ub2e8\ub2e8\ud788 \uc555\ucd95\ub418\uc9c0 \uc54a\uc558\uc2b5\ub2c8\ub2e4.<\/td><td>\uc2a4\ud14c\uc774\ud130\ub97c \uc810\uac80\ud558\uace0 \uc218\ub9ac\ud558\uc138\uc694<\/td><\/tr><tr><td>\ubca0\uc5b4\ub9c1 \ub9c8\ubaa8<\/td><td>\ubca0\uc5b4\ub9c1 \uad50\uccb4<\/td><\/tr><tr><td>\uc2ac\ub86f \uc6e8\uc9c0 \ud655\uc7a5<\/td><td>\ud655\uc7a5\ub41c \uc410\uae30 \ubd80\ubd84\uc744 \uc798\ub77c\ub0b4\uac70\ub098 \uad50\uccb4\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-7-motor-speed-drops-under-load\">1.7 \ubd80\ud558 \uc2dc \ubaa8\ud130 \uc18d\ub3c4 \uc800\ud558<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ud68c\uc804\uc790 \ub05d\ub2e8 \uc5f0\uacb0\ubd80 \ub2e8\ub77d<\/td><td>\ub2e8\ub77d \ud68c\ub85c\ub97c \ucc3e\uc544 \uc81c\uac70\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ud68c\uc804\uc790 \uad8c\uc120\uc740 \ub450 \uc9c0\uc810\uc5d0\uc11c \uc811\uc9c0\ub429\ub2c8\ub2e4.<\/td><td>\uac01 \ucf54\uc77c\uc744 \uc810\uac80\ud558\uace0 \uc190\uc0c1\ub41c \uc808\uc5f0\uccb4\ub97c \uc218\ub9ac\ud558\uc2ed\uc2dc\uc624.<\/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 \uc791\ub3d9 \uc911 \ub85c\ud130\uc640 \uc2a4\ud14c\uc774\ud130\uc758 \ub9c8\ucc30<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ubca0\uc5b4\ub9c1 \ub9c8\ubaa8, \uc5d4\ub4dc \ucee4\ubc84 \uc815\ub82c \ubd88\ub7c9, \uace0\uc815\uc790 \ub610\ub294 \ud68c\uc804\uc790 \ucf54\uc5b4 \ubcc0\ud615<\/td><td>\uace0\uc7a5\ub09c \ubca0\uc5b4\ub9c1\uc744 \uad50\uccb4\ud558\uace0, \uc5d4\ub4dc \ucee4\ubc84\uc758 \uc704\uce58\ub97c \uc218\uc815\ud558\uace0, \uc2a4\ud14c\uc774\ud130\/\ub85c\ud130 \ucf54\uc5b4\uc5d0\uc11c \ubc84(burr)\ub97c \uc81c\uac70\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\uc798\ubabb\ub41c \uace0\uc815\uc790 \uad8c\uc120 \uc5f0\uacb0\ub85c \uc778\ud55c \uc790\uae30 \ubd88\uade0\ud615<\/td><td>\ucf54\uc77c \uc5f0\uacb0 \uc0c1\ud0dc\ub97c \uc810\uac80\ud558\uace0 \uc218\uc815\ud558\uc2ed\uc2dc\uc624. \uac01 \uc0c1\uc758 \uc804\ub958\uac00 \ub3d9\uc77c\ud55c\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/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 \ube0c\ub7ec\uc2dc \ub610\ub294 \uadf8\uc744\ub9b0 \uc2ac\ub9bd \ub9c1\uc5d0\uc11c \uc2a4\ud30c\ud06c \ubc1c\uc0dd<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc81c\ub300\ub85c \uc7a5\ucc29\ub418\uc9c0 \uc54a\uc740 \ube0c\ub7ec\uc2dc<\/td><td>\ube0c\ub7ec\uc2dc\ub97c \uac08\uc544\uc11c \ub2e4\uc2dc \uc7a5\ucc29\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ube0c\ub7ec\uc2dc\uac00 \ud640\ub354\uc5d0 \ub108\ubb34 \ud5d0\ub801\ud558\uac8c \uaf42\ud600 \uc788\uc2b5\ub2c8\ub2e4.<\/td><td>\ube0c\ub7ec\uc2dc\ub97c \uc870\uc815\ud558\uac70\ub098 \uc62c\ubc14\ub978 \ud06c\uae30\uc758 \ube0c\ub7ec\uc2dc\ub85c \uad50\uccb4\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ub354\ub7ec\uc6b4 \ube0c\ub7ec\uc2dc\uc640 \uc2ac\ub9bd\ub9c1<\/td><td>\uc2ac\ub9bd\ub9c1\uc740 \uc54c\ucf54\uc62c\ub85c \uc138\ucc99\ud558\uc138\uc694.<\/td><\/tr><tr><td>\uc2ac\ub9bd\ub9c1 \ud45c\uba74\uc774 \uace0\ub974\uc9c0 \uc54a\uc544 \ube0c\ub7ec\uc2dc\uac00 \ud295\uae30\ub294 \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/td><td>\uc2ac\ub9bd\ub9c1 \ud45c\uba74\uc744 \uae30\uacc4 \uac00\uacf5 \ubc0f \uc5f0\ub9c8\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\ubd93 \uc555\ub825\uc774 \ubd80\uc871\ud568<\/td><td>18~20kPa\ub85c \uc870\uc815\ud558\uc138\uc694.<\/td><\/tr><tr><td>\uc798\ubabb\ub41c \ube0c\ub7ec\uc2dc \ub4f1\uae09<\/td><td>\uc62c\ubc14\ub978 \uc0ac\uc591\uc758 \uc81c\ud488\uc73c\ub85c \uad50\uccb4\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ube0c\ub7ec\uc2dc \uac04 \uc804\ub958 \ubd84\ud3ec\uac00 \ubd88\uade0\ub4f1\ud568<\/td><td>\ube0c\ub7ec\uc2dc \ud640\ub354 \uacf5\uae09 \uc7a5\uce58 \uc5f0\uacb0\ubd80\ub97c \uc810\uac80\ud558\uace0 \uc218\uc815\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1-10-slip-ring-open-circuit\">1.10 \uc2ac\ub9bd\ub9c1 \uac1c\ubc29 \ud68c\ub85c<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc2ac\ub9bd\ub9c1 \ubc0f \ube0c\ub7ec\uc2dc \uc5b4\uc148\ube14\ub9ac\uac00 \uc624\uc5fc\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><td>\uaf3c\uaf3c\ud558\uac8c \uccad\uc18c\ud558\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-ac-electromagnet-failures\">2. \uad50\ub958 \uc804\uc790\uc11d \uace0\uc7a5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-1-coil-overheating\">2.1 \ucf54\uc77c \uacfc\uc5f4<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc804\uc790\uc11d \uacfc\ubd80\ud558 (\uacfc\ub3c4\ud55c \uc2a4\ud504\ub9c1 \ud798)<\/td><td>\uc2a4\ud504\ub9c1 \uc7a5\ub825\uc744 \uc870\uc808\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc790\uae30 \ud68c\ub85c\uc758 \uace0\uc815 \ubd80\ubd84\uacfc \uc6c0\uc9c1\uc774\ub294 \ubd80\ubd84 \uc0ac\uc774\uc5d0 \uac04\uaca9\uc774 \uc874\uc7ac\ud569\ub2c8\ub2e4.<\/td><td>\uaca9\ucc28\ub97c \uc5c6\uc560\ub2e4<\/td><\/tr><tr><td>\ucf54\uc77c \uc804\uc555\uc774 \uacf5\uae09 \uc804\uc555\uacfc \uc77c\uce58\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td><td>\ucf54\uc77c\uc744 \uad50\uccb4\ud558\uac70\ub098 \uc5f0\uacb0 \ubc29\uc2dd\uc744 \ubcc0\uacbd\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-2-excessive-humming-noise-during-operation\">2.2 \uc791\ub3d9 \uc911 \uacfc\ub3c4\ud55c \uc719\uc719\uac70\ub9ac\ub294 \uc18c\uc74c<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc804\uc790\uc11d \uacfc\ubd80\ud558<\/td><td>\uc2a4\ud504\ub9c1 \uc7a5\ub825\uc744 \uc870\uc808\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc790\uae30 \ud68c\ub85c \uc791\ub3d9 \ud45c\uba74\uc5d0 \ubb3b\uc740 \uba3c\uc9c0<\/td><td>\uaf3c\uaf3c\ud558\uac8c \uccad\uc18c\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc790\uae30 \uc2dc\uc2a4\ud15c \uc815\ub82c \ubd88\ub7c9<\/td><td>\ube0c\ub808\uc774\ud06c \uae30\uacc4 \ubd80\ud488\uc744 \uc870\uc815\ud558\uace0 \uc815\ub82c \ubd88\ub7c9\uc744 \uc218\uc815\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"2-3-unable-to-overcome-spring-force\">2.3 \uc2a4\ud504\ub9c1\uc758 \ud798\uc744 \uc774\uaca8\ub0bc \uc218 \uc5c6\uc74c<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc804\uc790\uc11d \uacfc\ubd80\ud558 \/ \uba54\uc778 \uc2a4\ud504\ub9c1 \uc7a5\ub825\uc774 \ub108\ubb34 \ub192\uc74c<\/td><td>\ube0c\ub808\uc774\ud06c \uba54\uc778 \uc2a4\ud504\ub9c1 \uc7a5\ub825\uc744 \uc870\uc815\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ub0ae\uc740 \uacf5\uae09 \uc804\uc555<\/td><td>\uc804\uc555\uc774 \ubcf5\uad6c\ub420 \ub54c\uae4c\uc9c0 \uc791\uc5c5\uc744 \uc911\ub2e8\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-ac-contactor-and-relay-failures\">3. AC \uc811\ucd09\uae30 \ubc0f \uacc4\uc804\uae30 \uace0\uc7a5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-1-coil-overheating\">3.1 \ucf54\uc77c \uacfc\uc5f4<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ucf54\uc77c \uacfc\ubd80\ud558<\/td><td>\uace0\uc815 \uc811\ucd09\uc5d0 \ub300\ud55c \uac00\ub3d9 \uc811\ucd09 \uc555\ub825\uc744 \uc904\uc785\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uc790\uae30 \ud68c\ub85c\uc758 \uc6c0\uc9c1\uc774\ub294 \ubd80\ubd84\uc774 \uace0\uc815\ub41c \ubd80\ubd84\uc5d0 \ub2ff\uc9c0 \uc54a\uc74c<\/td><td>\uc815\ub82c \ubd88\ub7c9, \uac78\ub9bc, \uba3c\uc9c0\ub97c \uc81c\uac70\ud558\uace0 \uc190\uc0c1\ub41c \uacbd\uc6b0 \ucf54\uc77c\uc744 \uad50\uccb4\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-2-excessive-contactor-buzzing\">3.2 \uc811\ucd09\uae30\uc5d0\uc11c \uacfc\ub3c4\ud55c \uc18c\uc74c \ubc1c\uc0dd<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ucf54\uc77c \uacfc\ubd80\ud558<\/td><td>\uc811\ucd09 \uc555\ub825\uc744 \uc904\uc774\uc138\uc694<\/td><\/tr><tr><td>\uc790\uae30 \ud68c\ub85c \ud45c\uba74\uc758 \uba3c\uc9c0<\/td><td>\ud45c\uba74\uc744 \uae68\ub057\ud558\uac8c \uc720\uc9c0\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc790\uae30 \uacbd\ub85c \uc790\uccb4 \uc870\uc815 \uc2dc\uc2a4\ud15c\uc758 \uac78\ub9bc \ud604\uc0c1<\/td><td>\ub9c9\ud78c \ubd80\ubd84\uc744 \uc81c\uac70\ud558\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-3-contact-overheating-or-burned-destroyed\">3.3 \uc811\uc810 \uacfc\uc5f4 \ub610\ub294 \uc18c\uc190\/\ud30c\uc190<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc811\ucd09 \uc555\ub825\uc774 \ubd88\ucda9\ubd84\ud568<\/td><td>\uc555\ub825\uc744 \uc870\uc808\ud558\uc138\uc694<\/td><\/tr><tr><td>\ub354\ub7ec\uc6b4 \ucf58\ud0dd\ud2b8\ub80c\uc988<\/td><td>\uccad\uc18c\ud558\uac70\ub098 \uad50\uccb4\ud558\uc138\uc694.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-4-main-contactor-wont-engage\">3.4 \uc8fc \uc811\ucd09\uae30\uac00 \uc791\ub3d9\ud558\uc9c0 \uc54a\uc74c<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ub098\uc774\ud504 \uc2a4\uc704\uce58 \ub610\ub294 \ube44\uc0c1 \uc2a4\uc704\uce58\uac00 \ub2eb\ud788\uc9c0 \uc54a\uc74c<\/td><td>\uc2a4\uc704\uce58\ub97c \ub2eb\uc73c\uc138\uc694<\/td><\/tr><tr><td>\ud574\uce58\/\uc811\uadfc \ub3c4\uc5b4 \uc2a4\uc704\uce58 \uc5f4\ub9bc<\/td><td>\ubb38 \ub2eb\uae30 \uc2a4\uc704\uce58<\/td><\/tr><tr><td>\ucee8\ud2b8\ub864\ub7ec \ud578\ub4e4\uc774 0 \uc704\uce58\uc5d0 \uc788\uc9c0 \uc54a\uc74c<\/td><td>\ud578\ub4e4\uc744 0\uc73c\ub85c \ubc18\ud658\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uc81c\uc5b4 \ud68c\ub85c \ud4e8\uc988\uac00 \ub04a\uc5b4\uc84c\uc2b5\ub2c8\ub2e4.<\/td><td>\ud4e8\uc988\ub97c \uc810\uac80\ud558\uac70\ub098 \uad50\uccb4\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ub77c\uc778\uc5d0 \uc804\uc555\uc774 \uc5c6\uc2b5\ub2c8\ub2e4<\/td><td>\ub77c\uc778 \uc804\uc6d0\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"3-5-frequent-tripping-during-crane-operation\">3.5 \ud06c\ub808\uc778 \uc791\ub3d9 \uc911 \uc7a6\uc740 \ud2b8\ub9bd \ud604\uc0c1<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc811\ucd09 \uc555\ub825\uc774 \ubd88\ucda9\ubd84\ud568<\/td><td>\uc811\ucd09 \uc555\ub825\uc744 \uc870\uc815\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\ucf58\ud0dd\ud2b8\ub80c\uc988\uac00 \ud0c0\ubc84\ub838\uc2b5\ub2c8\ub2e4<\/td><td>\uc811\uc810\uc744 \uad50\uccb4\ud558\uac70\ub098 \uc5f0\ub9c8 \ubc0f \uc218\ub9ac\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ub354\ub7ec\uc6b4 \ucf58\ud0dd\ud2b8\ub80c\uc988<\/td><td>\uae68\ub057\ud55c<\/td><\/tr><tr><td>\uacfc\ubd80\ud558 \uc6b4\uc804\uc73c\ub85c \uc778\ud55c \uacfc\uc804\ub958<\/td><td>\ubd80\ud558\ub97c \uc904\uc774\uc138\uc694<\/td><\/tr><tr><td>\uc9d1\uc804 \ub808\uc77c\uacfc \ub3c4\uccb4 \ub808\uc77c \uc0ac\uc774\uc758 \uc811\ucd09 \ubd88\ub7c9<\/td><td>\ub808\uc77c \ub610\ub294 \ud2b8\ub80c\uce58 \ub3c4\uccb4 \uc2dc\uc2a4\ud15c \uc218\ub9ac<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-hydraulic-electromagnet-thruster-failures\">4. \uc720\uc555 \uc804\uc790\uc11d(\ucd94\uc9c4\uae30) \uace0\uc7a5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"4-1-push-rod-wont-move-after-power-on\">4.1 \uc804\uc6d0\uc744 \ucf20 \ud6c4 \ud478\uc2dc \ub85c\ub4dc\uac00 \uc6c0\uc9c1\uc774\uc9c0 \uc54a\uc74c<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ud478\uc2dc \ub85c\ub4dc\uac00 \uac78\ub838\uc2b5\ub2c8\ub2e4<\/td><td>\ub9c9\ud78c \ubd80\ubd84\uc744 \uc81c\uac70\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc815\uaca9 \uc804\uc555\uc758 85% \ubbf8\ub9cc \uacf5\uae09 \uc804\uc555<\/td><td>\uc804\uc555\uc744 \uc815\uaca9 \uc218\uc900\uc73c\ub85c \ub192\uc774\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>(ZLO \uc2e4\ub9ac\ucf58 \uc815\ub958\uae30\uc758) \uc2dc\uac04 \uc9c0\uc5f0 \ub9b4\ub808\uc774\uac00 \ub108\ubb34 \uc9e7\uac8c \uc124\uc815\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><td>\uc57d 0.5\ucd08\ub85c \uc870\uc815\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc815\ub958\uae30 \uc7a5\uce58\uac00 \uc791\ub3d9\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4<\/td><td>\uc218\ub9ac \ub610\ub294 \uad50\uccb4<\/td><\/tr><tr><td>\uc815\ub958\uae30 \uc7a5\uce58\uac00 \uc190\uc0c1\ub418\uc5c8\uc2b5\ub2c8\ub2e4<\/td><td>\uc218\ub9ac \ub610\ub294 \uad50\uccb4<\/td><\/tr><tr><td>\ud0c0\uc774\ubc0d \ub9b4\ub808\uc774\uc758 \uc0c1\uc2dc \uac1c\ubc29 \uc811\uc810\uc774 \ub2eb\ud788\uc9c0 \uc54a\uc74c<\/td><td>\uc811\uc810\uc744 \uc810\uac80\ud558\uace0 \uc218\ub9ac\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc624\uc77c \ub204\ucd9c \uc5c6\uc74c \ub610\ub294 \uc2ec\uac01\ud55c \uc624\uc77c \ub204\ucd9c<\/td><td>\uc530\uc744 \uc218\ub9ac\ud558\uace0 \uc624\uc77c\uc744 \ubcf4\ucda9\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"4-2-push-rod-stroke-too-short\">4.2 \ud478\uc2dc \ub85c\ub4dc \uc2a4\ud2b8\ub85c\ud06c\uac00 \ub108\ubb34 \uc9e7\uc74c<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uae30\ub984 \ubd80\uc871<\/td><td>\uc624\uc77c\uc744 \ubcf4\ucda9\ud558\uc138\uc694<\/td><\/tr><tr><td>\ud53c\uc2a4\ud1a4\uacfc \ubca0\uc5b4\ub9c1 \uc0ac\uc774\uc5d0 \uacf5\uae30\uac00 \uac07\ud614\uc2b5\ub2c8\ub2e4.<\/td><td>\uacf5\uae30\ub97c \ube7c\ub0b4\uc138\uc694<\/td><\/tr><tr><td>\uc2a4\ud2b8\ub85c\ud06c \uc124\uc815\uc774 \ub108\ubb34 \ub0ae\uc2b5\ub2c8\ub2e4<\/td><td>\uc2a4\ud2b8\ub85c\ud06c\ub97c \uc801\uc808\ud788 \uc870\uc815\ud558\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"4-3-stroke-gradually-decreases-after-operation\">4.3 \uc218\uc220 \ud6c4 \ub1cc\uc878\uc911\uc740 \uc810\ucc28 \uac10\uc18c\ud569\ub2c8\ub2e4<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc2e4\ub9b0\ub354 \uc624\uc77c \ub204\ucd9c<\/td><td>\uc2e4\ub9b0\ub354\ub97c \uad50\uccb4\ud558\uc138\uc694<\/td><\/tr><tr><td>\uae30\uc5b4\uc2dd \ubc38\ube0c \ub514\uc2a4\ud06c \ub610\ub294 \uc774\ub3d9\uc2dd \ucf54\uc5b4 \ubc38\ube0c \ub514\uc2a4\ud06c\uac00 \uc81c\ub300\ub85c \ubc00\ubd09\ub418\uc9c0 \uc54a\uc74c<\/td><td>\ubc38\ube0c \ub514\uc2a4\ud06c\uc5d0\uc11c \uae30\uacc4\uc801 \ubd88\uc21c\ubb3c\uc744 \uc81c\uac70\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uc530\ub9c1 \ub9c1\uc774 \uc2ec\ud558\uac8c \uc190\uc0c1\ub428<\/td><td>\uc530\ub9c1\uc744 \uad50\uccb4\ud558\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"4-4-start-up-time-too-long\">4.4 \uc2dc\uc791 \uc2dc\uac04\uc774 \ub108\ubb34 \uae40<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc804\uc555\uc774 \ub108\ubb34 \ub0ae\uc2b5\ub2c8\ub2e4<\/td><td>\uc804\uc555\uc744 \ub192\uc774\uc138\uc694<\/td><\/tr><tr><td>\uc6c0\uc9c1\uc774\ub294 \ubd80\ud488\uc774 \uac78\ub838\uc2b5\ub2c8\ub2e4<\/td><td>\ub9c9\ud78c \ubd80\ubd84\uc744 \uc81c\uac70\ud558\uc138\uc694<\/td><\/tr><tr><td>\ube0c\ub808\uc774\ud06c \uc81c\ub3d9 \ud1a0\ud06c\uac00 \ub108\ubb34 \ub192\uac8c \uc124\uc815\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><td>\uc81c\ub3d9 \ud1a0\ud06c\ub97c \uc815\uaca9 \uac12\uc73c\ub85c \uc870\uc815\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"4-5-braking-time-too-long\">4.5 \uc81c\ub3d9 \uc2dc\uac04\uc774 \ub108\ubb34 \uae38\ub2e4<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc2dc\uac04 \ub9b4\ub808\uc774 \uc811\uc810\uc774 \uc5f4\ub9ac\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4<\/td><td>\uc811\uc810\uc744 \uc810\uac80\ud558\uace0 \uc218\ub9ac\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc6c0\uc9c1\uc774\ub294 \ubd80\ud488\uc774 \uac78\ub838\uc2b5\ub2c8\ub2e4<\/td><td>\ub9c9\ud78c \ubd80\ubd84\uc744 \uc81c\uac70\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc624\uc77c \ud1b5\ub85c\uac00 \ub9c9\ud614\uc2b5\ub2c8\ub2e4.<\/td><td>\uae68\ub057\ud55c \uc624\uc77c \ud1b5\ub85c<\/td><\/tr><tr><td>\ube0c\ub808\uc774\ud06c \uc2dc\uc2a4\ud15c\uc758 \uae30\uacc4\uc801 \uacb0\ud568<\/td><td>\uae30\uacc4\uc801 \uacb0\ud568 \uc218\ub9ac<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"part-2-control-and-circuit-system-failures\">\ud30c\ud2b8 2: \uc81c\uc5b4 \ubc0f \ud68c\ub85c \uc2dc\uc2a4\ud15c \uc624\ub958<\/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. \ubcf4\ud638\ud568 \ub098\uc774\ud504 \uc2a4\uc704\uce58 \ub2eb\ud798 \u2192 \uc81c\uc5b4 \ud68c\ub85c \ud4e8\uc988 \ub2e8\uc120<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc81c\uc5b4 \ud68c\ub85c\uc758 \uc0c1-\uc811\uc9c0 \ub2e8\ub77d<\/td><td>\uba54\uac00\uc634\ubbf8\ud130\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc811\uc9c0\ub41c \uc704\uc0c1\uc744 \ucc3e\uace0 \uc81c\uac70\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-over-current-relay-trips-when-controller-engaged\">2. \ucee8\ud2b8\ub864\ub7ec \uc791\ub3d9 \uc2dc \uacfc\uc804\ub958 \uacc4\uc804\uae30 \ud2b8\ub9bd<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ubaa8\ud130\uc758 \ub9b4\ub808\uc774 \uc124\uc815\uc774 \uc798\ubabb\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><td>\uc124\uc815 \uc870\uc815: I_set = (2.25\u20132.5) \u00d7 I_rated<\/td><\/tr><tr><td>\uae30\uacc4\uc2dd \ubcc0\uc18d\uae30\uac00 \uace0\ucc29\ub418\uc5b4 \ubaa8\ud130\uc5d0 \uacfc\ubd80\ud558\uac00 \uac78\ub838\uc2b5\ub2c8\ub2e4.<\/td><td>\uae30\uacc4\uc801 \uc7a5\uc560\ubb3c\uc744 \ucc3e\uc544 \uc81c\uac70\ud558\uc2ed\uc2dc\uc624.<\/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. \uc8fc \uc811\ucd09\uae30 \uc791\ub3d9 \u2192 \uc785\ub825 \ub77c\uc778 \ud4e8\uc988 \ub2e8\uc120<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ud574\ub2f9 \uc0c1\uc5d0 \uc0c1-\uc811\uc9c0 \ub2e8\ub77d\uc774 \ubc1c\uc0dd\ud588\uc2b5\ub2c8\ub2e4.<\/td><td>\uc811\uc9c0 \uc624\ub958\ub97c \ucc3e\uc544 \uc81c\uac70\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-controller-engaged-but-motor-doesnt-rotate\">4. \ucee8\ud2b8\ub864\ub7ec\ub294 \uc791\ub3d9\ud588\uc9c0\ub9cc \ubaa8\ud130\uac00 \ud68c\uc804\ud558\uc9c0 \uc54a\uc74c<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ud55c \uc0c1\uc774 \uc5f4\ub824 \uc788\uc74c - \ubaa8\ud130\uc5d0\uc11c \uc719\uc719\uac70\ub9ac\ub294 \uc18c\ub9ac\uac00 \ub0a8<\/td><td>\ub2e8\uc120 \ubd80\uc704\ub97c \ucc3e\uc544 \ub2e4\uc2dc \uc5f0\uacb0\ud558\uc138\uc694.<\/td><\/tr><tr><td>\ub85c\ud130 \ud68c\ub85c \uac1c\ubc29<\/td><td>\ub2e8\uc120 \ubd80\uc704\ub97c \ucc3e\uc544 \ub2e4\uc2dc \uc5f0\uacb0\ud558\uc138\uc694.<\/td><\/tr><tr><td>\ub77c\uc778\uc5d0 \uc804\uc555\uc774 \uc5c6\uc2b5\ub2c8\ub2e4<\/td><td>\ub2e8\uc120 \ubd80\uc704\ub97c \ucc3e\uc544 \ub2e4\uc2dc \uc5f0\uacb0\ud558\uc138\uc694.<\/td><\/tr><tr><td>\ucee8\ud2b8\ub864\ub7ec \uc811\uc810\uc774 \uc2e4\uc81c\ub85c \uc811\ucd09\ud558\uc9c0 \uc54a\uc74c<\/td><td>\ucee8\ud2b8\ub864\ub7ec\ub97c \uc810\uac80\ud558\uace0 \uc218\ub9ac\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc9d1\uc9c4 \ube0c\ub7ec\uc2dc \uacb0\ud568<\/td><td>\uc9d1\uc9c4\uae30\ub97c \uc810\uac80\ud558\uace0 \uc218\ub9ac\ud558\uc138\uc694<\/td><\/tr><tr><td>\ube0c\ub808\uc774\ud06c \uace0\uc7a5 - \ube0c\ub808\uc774\ud06c\uac00 \ud480\ub9ac\uc9c0 \uc54a\uc74c<\/td><td>\ube0c\ub808\uc774\ud06c \uc810\uac80 \ubc0f \uc218\ub9ac<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\uac04\ub2e8 \ud655\uc778:<\/strong> \ubaa8\ud130\uc5d0\uc11c \uc719\uc719\uac70\ub9ac\ub294 \uc18c\ub9ac\ub294 \ub098\uc9c0\ub9cc \ud68c\uc804\ud558\uc9c0 \uc54a\ub294\ub2e4\uba74, \uac70\uc758 \ub300\ubd80\ubd84 \ub2e8\uc0c1 \ubb38\uc81c\uc785\ub2c8\ub2e4. \uba3c\uc800 \uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58\uc640 \ud68c\uc804\uc790 \ud68c\ub85c \ubc30\uc120\uc744 \uc810\uac80\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"5-controller-engaged-\u2192-motor-runs-in-one-direction-only\">5. \ucee8\ud2b8\ub864\ub7ec \uc791\ub3d9 \u2192 \ubaa8\ud130\ub294 \ud55c \ubc29\ud5a5\uc73c\ub85c\ub9cc \ud68c\uc804<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ucee8\ud2b8\ub864\ub7ec \uc5ed\ubc29\ud5a5 \uc811\uc810 \ubd88\ub7c9 \ub610\ub294 \uae30\uacc4\uc2dd \uc5f0\ub3d9 \uc7a5\uce58 \uace0\uc7a5<\/td><td>\ucee8\ud2b8\ub864\ub7ec\ub97c \uc810\uac80\ud558\uace0 \uc811\uc810\uc744 \uc870\uc815\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\uc804\ub825 \ubc30\uc804 \ubc30\uc120 \uacb0\ud568<\/td><td>\uc810\ud504 \uc640\uc774\uc5b4 \ubc29\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \uace0\uc7a5 \uc704\uce58\ub97c \ucc3e\uc544 \uc218\ub9ac\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\uc774\ub3d9 \uba54\ucee4\ub2c8\uc998\uc774 \uadf9\ud55c \uc704\uce58\uc5d0 \ub3c4\ub2ec\ud558\uc5ec \ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58\uac00 \uc791\ub3d9\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><td>\ud55c \ubc29\ud5a5\uc73c\ub85c\ub9cc \uc8fc\ud589 \uac00\ub2a5\ud569\ub2c8\ub2e4 - \uc815\uc0c1\uc801\uc778 \ub3d9\uc791\uc785\ub2c8\ub2e4<\/td><\/tr><tr><td>\ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58 \uc624\uc791\ub3d9<\/td><td>\ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58\ub97c \uc810\uac80\ud558\uace0 \uace0\uc7a5\uc744 \uc81c\uac70\ud558\uc2ed\uc2dc\uc624.<\/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. \ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58 \uc791\ub3d9 \u2192 \uc8fc \uc811\ucd09\uae30\uac00 \ud574\uc81c\ub418\uc9c0 \uc54a\uc74c<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58 \ud68c\ub85c\uc758 \uac1c\ubc29 \ud68c\ub85c<\/td><td>\uac1c\ubc29 \ud68c\ub85c\ub97c \uc810\uac80\ud558\uace0 \uc218\ub9ac\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ucee8\ud2b8\ub864\ub7ec \uc5f0\uacb0 \ubc30\uc120\uc774 \uc798\ubabb\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><td>\uc62c\ubc14\ub978 \ubc30\uc120<\/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. \uc81c\uc5b4\uae30\uac00 \uaebc\uc9d0 \uc704\uce58\ub85c \ub3cc\uc544\uac10 \u2192 \uc8fc \uc811\ucd09\uae30\uac00 \ud574\uc81c\ub418\uc9c0 \uc54a\uc74c<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uba48\ucda4\uc1e0 \uba54\ucee4\ub2c8\uc998 \uacb0\ud568<\/td><td>\uc218\ub9ac\uc6a9 \uba48\ucda4\uc1e0<\/td><\/tr><tr><td>\uc544\ud06c \uc288\ud2b8\uc5d0 \uc811\uc810\uc774 \ub07c\uc5c8\uc2b5\ub2c8\ub2e4<\/td><td>\uc811\ucd09 \uc704\uce58\ub97c \uc870\uc815\ud569\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"8-controller-handle-jammed-during-operation\">8. \uc791\ub3d9 \uc911 \ucee8\ud2b8\ub864\ub7ec \ud578\ub4e4\uc774 \uac78\ub838\uc2b5\ub2c8\ub2e4<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uba48\ucda4\uc1e0 \uba54\ucee4\ub2c8\uc998 \uacb0\ud568<\/td><td>\uba48\ucda4\uc1e0 \uc555\ub825\uc744 \uc870\uc815\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uc811\uc810\uc774 \uc6a9\uc811\ub418\uc5c8\uc2b5\ub2c8\ub2e4<\/td><td>\ud30c\uc77c \uc5f0\ub77d\ucc98 \uc815\ub9ac<\/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. \ubc1c\uc804\uae30 \uc5ec\uc790 \ubd88\ub7c9 (\uc628\ubcf4\ub4dc \ubc1c\uc804\uae30\uac00 \uc7a5\ucc29\ub41c \ud06c\ub808\uc778\uc758 \uacbd\uc6b0)<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc5ec\uc790 \ud68c\ub85c \uac1c\ubc29<\/td><td>\uc5ec\uc790 \ud68c\ub85c\ub97c \uc810\uac80\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><tr><td>\ubc1c\uc804\uae30\uac00 \uc5ed\ubc29\ud5a5\uc73c\ub85c \ud68c\uc804\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/td><td>\uad6c\ub3d9 \ud68c\ub85c \ub85c\ud130 \ubc30\uc120\uc758 \ub450 \ub2e8\uacc4\ub97c \uc11c\ub85c \ubc14\uafc9\ub2c8\ub2e4.<\/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. \uc815\uc804 \ubc1c\uc0dd \uc2dc \ubcf4\ud638 \ubc15\uc2a4 \uc811\ucd09\uae30\uac00 \ucc28\ub2e8\ub418\uc9c0 \uc54a\uc74c (\uc81c\uc5b4 \ud68c\ub85c \uc804\uc6d0 \ucc28\ub2e8\ub428)<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uac00\ub2a5\ud55c \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead><tbody><tr><td>\uc81c\uc5b4 \ud68c\ub85c \uc5b4\ub518\uac00\uc5d0 \uc811\uc9c0 \ub610\ub294 \ub2e8\ub77d\uc774 \ubc1c\uc0dd\ud588\uc2b5\ub2c8\ub2e4.<\/td><td>\ucc3e\uc544 \uc81c\uac70\ud558\uc138\uc694<\/td><\/tr><tr><td>\uc811\ucd09\uae30 \uc811\uc810\uc774 \uc6a9\uc811\ub428 - \uc8fc \ud68c\ub85c\uc5d0 \uacc4\uc18d \uc804\uae30\uac00 \uacf5\uae09\ub428<\/td><td>\uc190\uc0c1\ub41c \uc811\uc810\uc744 \ud30c\uc77c\ub85c \uad50\uccb4\ud558\uc5ec \uc815\uc0c1\uc801\uc778 \uc811\uc810\uc744 \ubcf5\uc6d0\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"quick-diagnostic-flow-for-overhead-crane-electrical-problems\">\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \ubb38\uc81c\uc5d0 \ub300\ud55c \uc2e0\uc18d \uc9c4\ub2e8 \ud750\ub984\ub3c4<\/h2>\n\n\n\n<p>\uc804\uae30 \uace0\uc7a5 \uc9c4\ub2e8 \uc2dc\uc5d0\ub294 \ud328\ub110\uc744 \uc5f4\uae30 \uc804\uc5d0 \ub2e4\uc74c \uc21c\uc11c\ub97c \ub530\ub974\uc2ed\uc2dc\uc624.<\/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\">\ud06c\ub808\uc778 \uc804\uae30 \ubd80\ud488 \uad50\uccb4 vs \uc218\ub9ac \uac00\uc774\ub4dc<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\uc694\uc18c<\/th><th>\ubc14\uafb8\ub2e4<\/th><th>\uc218\ub9ac \uac00\ub2a5<\/th><\/tr><\/thead><tbody><tr><td>\ucf54\uc77c\uc774 \ud0c0\ubc84\ub9b0 \ubaa8\ud130<\/td><td>\u2713<\/td><td>\u2014<\/td><\/tr><tr><td>\ubca0\uc5b4\ub9c1 \ub9c8\ubaa8\ub9cc \uc788\ub294 \ubaa8\ud130<\/td><td>\u2014<\/td><td>\u2713 \ubca0\uc5b4\ub9c1 \uad50\uccb4<\/td><\/tr><tr><td>\uc811\ucd09\uae30 \uc811\uc810\uc774 \ud0c0\uac70\ub098 \uc6a9\uc811\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><td>\u2713 (\uc2ec\uac01\ud55c \uacbd\uc6b0)<\/td><td>\u2713 \uc904\uc9c8 \ubc0f \uccad\uc18c (\uac04\ub2e8\ud55c \uc791\uc5c5)<\/td><\/tr><tr><td>\uadf8\uc744\ub9b0 \uc2ac\ub9bd\ub9c1<\/td><td>\u2014<\/td><td>\u2713 \uae30\uacc4 \uac00\uacf5 \ubc0f \uad11\ud0dd \uc791\uc5c5<\/td><\/tr><tr><td>\uc190\uc0c1\ub41c \uc815\ub958\uae30 \uc7a5\uce58<\/td><td>\u2713<\/td><td>\u2014<\/td><\/tr><tr><td>\ud4e8\uc988\uac00 \ub098\uac14\uc2b5\ub2c8\ub2e4<\/td><td>\u2713<\/td><td>\u2014 (\uba3c\uc800 \uc6d0\uc778\uc744 \uc9c4\ub2e8\ud558\uc2ed\uc2dc\uc624)<\/td><\/tr><tr><td>\uace0\uc7a5\ub09c\/\uac78\ub9b0 \uc804\uc790\uc11d<\/td><td>\u2014<\/td><td>\u2713 \uc138\ucc99 \ubc0f \uc724\ud65c<\/td><\/tr><tr><td>\uc720\uc555\uc2dd \ucd94\uc9c4\uae30 \uc2e4\ub9b0\ub354 \ub204\ucd9c<\/td><td>\u2713<\/td><td>\u2014<\/td><\/tr><tr><td>\ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58\uac00 \uc798\ubabb \uc815\ub82c\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><td>\u2014<\/td><td>\u2713 \uc704\uce58 \uc870\uc815<\/td><\/tr><tr><td>\uc6a9\uc811\ub41c \uc8fc \uc811\ucd09\uae30 \uc811\uc810<\/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\">\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \uc2dc\uc2a4\ud15c \uc608\ubc29 \uc720\uc9c0\ubcf4\uc218<\/h2>\n\n\n\n<p>\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \uc2dc\uc2a4\ud15c \uace0\uc7a5\uc744 \uc608\ubc29\ud558\ub294 \uac83\uc740 \ube44\uc0c1\uc2dc \uac00\ub3d9 \uc911\ub2e8\uc774\ub098 \ubd80\ud488 \uad50\uccb4\ubcf4\ub2e4 \ud6e8\uc52c \ube44\uc6a9 \ud6a8\uc728\uc801\uc785\ub2c8\ub2e4. \uccb4\uacc4\uc801\uc778 \uc804\uae30 \uc720\uc9c0\ubcf4\uc218 \ud504\ub85c\uadf8\ub7a8\uc744 \ud1b5\ud574 \uc608\uae30\uce58 \uc54a\uc740 \uac00\ub3d9 \uc911\ub2e8\uc744 \uc904\uc774\uace0, \ud06c\ub808\uc778 \uc548\uc804\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uba70, \uc7a5\ube44 \uc218\uba85\uc744 \uc5f0\uc7a5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"inspect-electrical-connections-regularly\">\uc804\uae30 \uc5f0\uacb0\ubd80\ub97c \uc815\uae30\uc801\uc73c\ub85c \uc810\uac80\ud558\uc2ed\uc2dc\uc624.<\/h3>\n\n\n\n<p>\ub290\uc2a8\ud55c \ub2e8\uc790, \uc190\uc0c1\ub41c \ub3c4\uccb4, \uadf8\ub9ac\uace0 \ubd88\ub7c9\ud55c \uc811\uc9c0\ub294 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778\uc758 \uc804\uae30 \uace0\uc7a5\uc758 \uac00\uc7a5 \ud754\ud55c \uc6d0\uc778 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \ubc30\uc804\ubc18, \ub3c4\uccb4 \uc2dc\uc2a4\ud15c \ubc0f \ub2e8\uc790\ub300\ub294 \uc815\uae30\uc801\uc73c\ub85c \uc810\uac80\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"monitor-motor-temperature\">\ubaa8\ud130 \uc628\ub3c4 \ubaa8\ub2c8\ud130\ub9c1<\/h3>\n\n\n\n<p>\ubaa8\ud130 \uacfc\uc5f4\uc740 \ud06c\ub808\uc778 \ubaa8\ud130 \uace0\uc7a5\uc758 \uc8fc\uc694 \uc6d0\uc778 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc791\uc5c5\uc790\ub294 \uc628\ub3c4 \uc0c1\uc2b9, \uc774\uc0c1\ud55c \ub0c4\uc0c8, \uc9c4\ub3d9 \ubc0f \uc804\ub958 \uc18c\ubaa8\ub7c9\uc744 \ubaa8\ub2c8\ud130\ub9c1\ud558\uc5ec \ube44\uc815\uc0c1\uc801\uc778 \uc791\ub3d9 \uc0c1\ud0dc\ub97c \uc870\uae30\uc5d0 \ud30c\uc545\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-contactors-and-relays\">\uc811\ucd09\uae30 \ubc0f \ub9b4\ub808\uc774\ub97c \uc810\uac80\ud558\uc2ed\uc2dc\uc624.<\/h3>\n\n\n\n<p>\uc7a6\uc740 \uc2a4\uc704\uce6d \uc0ac\uc774\ud074\uc740 \uc811\ucd09\uae30 \ud45c\uba74\uc758 \ub9c8\ubaa8\ub97c \uc720\ubc1c\ud569\ub2c8\ub2e4. \uc811\uc810\uc774 \ud0c0\uac70\ub098 \uc6a9\uc811\ub418\uba74 \uac04\ud5d0\uc801\uc778 \uace0\uc7a5\uc774\ub098 \uc644\uc804\ud55c \uc804\uae30 \ucc28\ub2e8\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"test-limit-switches-and-safety-devices\">\ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58 \ubc0f \uc548\uc804 \uc7a5\uce58 \ud14c\uc2a4\ud2b8<\/h3>\n\n\n\n<p>\uace0\uc7a5\ub09c \ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58\ub294 \uc608\uae30\uce58 \uc54a\uc740 \uc815\uc9c0 \ub610\ub294 \ubc29\ud5a5 \ubb38\uc81c\ub97c \uc77c\uc73c\ud0a4\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uc548\uc804 \uc5f0\ub3d9 \uc7a5\uce58, \ube44\uc0c1 \uc815\uc9c0 \uc2dc\uc2a4\ud15c \ubc0f \uc8fc\ud589 \ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58\ub294 \uc815\uae30\uc801\uc73c\ub85c \ud14c\uc2a4\ud2b8\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"follow-scheduled-electrical-inspections\">\uc815\uae30\uc801\uc778 \uc804\uae30 \uc810\uac80\uc744 \ubc1b\uc73c\uc2ed\uc2dc\uc624.<\/h3>\n\n\n\n<p>\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778\uc758 \uc815\uae30\uc801\uc778 \uc804\uae30 \uc720\uc9c0\ubcf4\uc218\uc5d0\ub294 \uc808\uc5f0 \uc800\ud56d \ud14c\uc2a4\ud2b8, \uc81c\uc5b4 \ud68c\ub85c \uac80\uc99d, \ub3c4\uccb4 \ub808\uc77c \uac80\uc0ac \ubc0f \ube0c\ub808\uc774\ud06c \uc2dc\uc2a4\ud15c \uc810\uac80\uc774 \ud3ec\ud568\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"need-expert-support-for-overhead-crane-electrical-system-failures\">\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \uc804\uae30 \uc2dc\uc2a4\ud15c \uace0\uc7a5\uc5d0 \ub300\ud55c \uc804\ubb38\uac00 \uc9c0\uc6d0\uc774 \ud544\uc694\ud558\uc2ed\ub2c8\uae4c?<\/h2>\n\n\n\n<p>KUANGSHAN CRANE\uc740 \ubaa8\ud130, VFD \uc2dc\uc2a4\ud15c, \uc81c\uc5b4 \ud328\ub110, \ub3c4\uccb4 \ubc14, \ub9ac\ubbf8\ud2b8 \uc2a4\uc704\uce58 \ubc0f \uc804\uccb4 \ud06c\ub808\uc778 \uc804\ub825\ud654 \ud328\ud0a4\uc9c0\ub97c \ud3ec\ud568\ud558\uc5ec \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778\uc6a9 \uc644\ubcbd\ud55c \uc804\uae30 \uc194\ub8e8\uc158\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778\uc758 \uc804\uae30 \uc2dc\uc2a4\ud15c \uace0\uc7a5\uc774 \ubc18\ubcf5\uc801\uc73c\ub85c \ubc1c\uc0dd\ud558\ub294 \uacbd\uc6b0, \ub2f9\uc0ac \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ud300\uc774 \uace0\uc7a5 \uc9c4\ub2e8, \uad50\uccb4 \ubd80\ud488 \ucd94\ucc9c, \uadf8\ub9ac\uace0 \uc2e0\ub8b0\uc131\uacfc \uc131\ub2a5 \ud5a5\uc0c1\uc744 \uc704\ud55c \uc804\uae30 \uc2dc\uc2a4\ud15c \uc5c5\uadf8\ub808\uc774\ub4dc \uc9c0\uc6d0\uc744 \uc81c\uacf5\ud574 \ub4dc\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"Overhead crane electrical system failures are one of the leading causes of crane downtime in manufacturing plants, warehouses, steel mills, and heavy industrial facilities. Compared with mechanical faults, electrical failures are often more difficult to diagnose because the symptoms can be misleading. For example, a motor that fails to start may be caused by a [&hellip;]","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\/ko\/wp-json\/wp\/v2\/xmxposts\/11538"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/ko\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/ko\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":4,"href":"https:\/\/www.kscranegroup.com\/ko\/wp-json\/wp\/v2\/xmxposts\/11538\/revisions"}],"predecessor-version":[{"id":11559,"href":"https:\/\/www.kscranegroup.com\/ko\/wp-json\/wp\/v2\/xmxposts\/11538\/revisions\/11559"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/ko\/wp-json\/wp\/v2\/media\/11539"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/ko\/wp-json\/wp\/v2\/media?parent=11538"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/ko\/wp-json\/wp\/v2\/posts_category?post=11538"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/ko\/wp-json\/wp\/v2\/posts_tag?post=11538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}