{"id":4937,"date":"2026-11-04T09:38:31","date_gmt":"2026-11-04T01:38:31","guid":{"rendered":"https:\/\/cnkuangya.com\/?p=4937"},"modified":"2026-11-04T09:43:56","modified_gmt":"2026-11-04T01:43:56","slug":"3-pole-vs-4-pole-ats-neutral","status":"publish","type":"post","link":"https:\/\/cnkuangya.com\/ko\/blog\/3-pole-vs-4-pole-ats-neutral\/","title":{"rendered":"3\uadf9 vs 4\uadf9 ATS: \uc5b8\uc81c \uc804\ud658 \uc2a4\uc704\uce58\uac00 \uc911\uc131\uc120\uc744 \uc804\ud658\ud574\uc57c \ud558\ub294\uac00?"},"content":{"rendered":"<p><strong>\uac04\ub2e8\ud55c \ub2f5\ubcc0:<\/strong> 3\uadf9 \uc790\ub3d9 \uc808\uccb4 \uc2a4\uc704\uce58(ATS)\ub294 3\uc0c1 \ub3c4\uccb4\ub9cc \uc808\uccb4\ud558\uba70 \ubd80\ud558 \uc911\uc131\uc120\uc740 \uacac\uace0\ud558\uac8c \uc5f0\uacb0\ub41c \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud569\ub2c8\ub2e4. 4\uadf9 ATS\ub294 \uc911\uc131\uc120\uae4c\uc9c0 \uc808\uccb4\ud569\ub2c8\ub2e4. \uc62c\ubc14\ub978 \uc120\ud0dd\uc740 \uc2dc\uc2a4\ud15c\uc758 \uc911\uc131\uc120-\uc811\uc9c0 \ubcf8\ub529, \ubc1c\uc804\uae30\uac00 \ubcc4\ub3c4\ub85c \ud30c\uc0dd\ub41c \uc804\uc6d0\uc778\uc9c0 \uc5ec\ubd80, \ubcf4\ud638 \uc124\uacc4 \ubc0f \uc801\uc6a9 \uac00\ub2a5\ud55c \ud604\uc9c0 \uaddc\uc815\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. 4\uc120\uc2dd \ubd80\ud558\ub77c\uace0 \ud574\uc11c \ubc18\ub4dc\uc2dc \uc911\uc131\uc120 \uc808\uccb4\uac00 \ud544\uc694\ud55c \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/%E5%8C%A1%E4%BA%9A%E5%9B%BE%E7%89%87527-600x600.jpg\" alt=\"Kuangya KGQ2 automatic changeover switch product example\" width=\"600\" height=\"600\" loading=\"lazy\"><figcaption>\uad11\uc57c(Kuangya) KGQ2 \uc790\ub3d9 \uc808\uccb4 \uc2a4\uc704\uce58. \uc911\uc131\uc120 \uad6c\uc131\uc744 \uc120\ud0dd\ud560 \ub54c\ub294 \uc815\ud655\ud55c \ubaa8\ub378 \uc0ac\uc591\uc11c\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/figcaption><\/figure>\n<h2>\uc911\uc131\uc120 \uacb0\uc815\uc774 \uc911\uc694\ud55c \uc774\uc720<\/h2>\n<p>\uc0c1\uc6a9 \uc804\uc6d0\uc774 \ucc28\ub2e8\ub418\uba74 ATS\ub294 \ubd80\ud558\ub97c \ubc1c\uc804\uae30\uc640 \uac19\uc740 \ub300\uccb4 \uc804\uc6d0\uc73c\ub85c \uc808\uccb4\ud569\ub2c8\ub2e4. \uc911\uc131\uc120 \uad6c\uc131\uc740 \uac01 \uc791\ub3d9 \ubaa8\ub4dc\uc5d0\uc11c \uadc0\ub85c \uc804\ub958\uc640 \uc9c0\ub77d \uc804\ub958\uac00 \ud750\ub974\ub294 \ubc29\uc2dd\uc744 \uacb0\uc815\ud569\ub2c8\ub2e4. \uc798\ubabb\ub41c \uad6c\uc131\uc740 \ubcd1\ub82c \uc911\uc131\uc120 \uacbd\ub85c\ub97c \uc0dd\uc131\ud558\uac70\ub098 \uc9c0\ub77d \ubcf4\ud638 \uae30\ub2a5\uc744 \uc800\ud558\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc774 \uacb0\uc815\uc740 \ub2e8\uc21c\ud788 \uadf9\uc218\ub9cc \ubcf4\uace0 \ud310\ub2e8\ud560 \uac83\uc774 \uc544\ub2c8\ub77c \uc804\uccb4 \ub2e8\uc120 \uacb0\uc120\ub3c4\ub97c \ubc14\ud0d5\uc73c\ub85c \uc774\ub8e8\uc5b4\uc838\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2>3\uadf9 ATS\uc758 \uae30\ub2a5<\/h2>\n<p>3\uadf9 \uc7a5\uce58\ub294 L1, L2, L3\ub97c \uc2a4\uc704\uce6d\ud569\ub2c8\ub2e4. \uacac\uace0\ud55c \uc911\uc131\uc120 \uad6c\uc131\uc5d0\uc11c \uc0c1\uc6a9 \uc911\uc131\uc120, \ubc1c\uc804\uae30 \uc911\uc131\uc120 \ubc0f \ubd80\ud558 \uc911\uc131\uc120\uc740 \uc808\uccb4 \uc7a5\uce58\ub97c \ud1b5\ud574 \uacc4\uc18d \uc5f0\uacb0\ub41c \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud569\ub2c8\ub2e4. \uc774\ub294 \uc11c\ube44\uc2a4 \uc911\uc131\uc120-\uc811\uc9c0 \ubcf8\ub529\uc744 \uc0ac\uc6a9\ud558\ub294 \ubc1c\uc804\uae30 \uc124\uce58\uc5d0 \uc801\ud569\ud560 \uc218 \uc788\uc73c\uba70, <em>not<\/em> \ubcc4\ub3c4 \ubd84\ub9ac \uc2dc\uc2a4\ud15c\uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \ubc1c\uc804\uae30 \ubcf8\ub529 \ubc30\uc5f4\uc744 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4. \ub450 \ubc88\uc9f8 \uc911\uc131\uc120-\uc811\uc9c0 \ubcf8\ub529\uc740 \uc6d0\uce58 \uc54a\ub294 \ubcd1\ub82c \uacbd\ub85c\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>4\uadf9 ATS\uc758 \uae30\ub2a5<\/h2>\n<p>4\uadf9 \uc7a5\uce58\ub294 L1, L2, L3 \ubc0f N\uc744 \uc804\ud658\ud569\ub2c8\ub2e4. \uc911\uc131\uadf9\uc740 \ubd80\ud558 \uc911\uc131\uc120\uc744 \uc120\ud0dd\ub41c \uc18c\uc2a4\uc5d0 \uc5f0\uacb0\ud569\ub2c8\ub2e4. \uc774 \uad6c\uc131\uc740 \ub300\uccb4 \uc18c\uc2a4\uc5d0 \uc790\uccb4 \uc911\uc131\uc120-\uc811\uc9c0 \ubcf8\ub529\uc774 \uc788\uace0 \ubcc4\ub3c4 \ubd84\ub9ac \uc2dc\uc2a4\ud15c\uc73c\ub85c \uc124\uacc4\ub41c \uacbd\uc6b0 \uc77c\ubc18\uc801\uc73c\ub85c \uace0\ub824\ub429\ub2c8\ub2e4. \uc911\uc131 \uc811\uc810 \uc2dc\ud000\uc2a4\uc640 \uc811\uc9c0 \uc124\uacc4\uac00 \uc911\uc694\ud569\ub2c8\ub2e4. \u201c4\uadf9\u201d\ub9cc\uc73c\ub85c\ub294 \ubaa8\ub4e0 \uc911\uc131\uc120 \uc804\ud658 \uba54\ucee4\ub2c8\uc998\uc744 \uc124\uba85\ud558\uc9c0 \ubabb\ud569\ub2c8\ub2e4. \ubcf4\ud638 \uc811\uc9c0\ub294 \uc5f0\uc18d\uc801\uc73c\ub85c \uc720\uc9c0\ub418\uc5b4\uc57c \ud558\uba70 \uc2a4\uc704\uce58 \uc911\uc131\uc120\uc73c\ub85c \uc0ac\uc6a9\ub418\uc5b4\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n<h2>\ube60\ub978 \ube44\uad50<\/h2>\n<table>\n<thead>\n<tr>\n<th>\uc124\uacc4 \uad00\ub828 \uc9c8\ubb38<\/th>\n<th>3\uadf9 \/ \uc194\ub9ac\ub4dc \uc911\uc131\uc120<\/th>\n<th>4\uadf9 \/ \uc2a4\uc704\uce58 \uc911\uc131\uc120<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc804\ud658\ub41c \ub3c4\uccb4<\/td>\n<td>\uc0bc\uc0c1<\/td>\n<td>3\uc0c1 \ubc0f \uc911\uc131\uc120<\/td>\n<\/tr>\n<tr>\n<td>\ubd80\ud558 \uc911\uc131\uc120<\/td>\n<td>\uc591\ucabd \uc804\uc6d0 \uc911\uc131\uc120\uc5d0 \ubaa8\ub450 \uc5f0\uacb0\ub41c \uc0c1\ud0dc \uc720\uc9c0<\/td>\n<td>\uc120\ud0dd\ub41c \uc804\uc6d0 \uc911\uc131\uc120\uc5d0 \uc5f0\uacb0<\/td>\n<\/tr>\n<tr>\n<td>\uc77c\ubc18\uc801\uc778 \uc124\uacc4 \ub9e5\ub77d<\/td>\n<td>\ub300\uccb4 \uc804\uc6d0\uc774 \ubcc4\ub3c4\ub85c \uc811\uc9c0\ub418\uc9c0 \uc54a\uc74c<\/td>\n<td>\ub300\uccb4 \uc804\uc6d0\uc774 \ubcc4\ub3c4\ub85c \uc811\uc9c0\ub428<\/td>\n<\/tr>\n<tr>\n<td>\uc8fc\uc694 \uac80\uc99d \uc0ac\ud56d<\/td>\n<td>\uc811\uc9c0 \ubc0f \ubcd1\ub82c \uc911\uc131\uc120 \uacbd\ub85c<\/td>\n<td>\uc911\uc131\uc120 \uc811\ucd09 \uc2dc\ud000\uc2a4, \uc811\uc9c0 \ubc0f \ubcf4\ud638 \ud611\uc870<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc774\ub294 \uc124\uacc4 \ud328\ud134\uc774\uba70, \ud604\uc9c0 \uc804\uae30 \uaddc\uc815\uc774\ub098 \ud604\uc7a5\ubcc4 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uac80\ud1a0\ub97c \ub300\uccb4\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ubc1c\uc804\uae30 ATS \uc120\ud0dd \uccb4\ud06c\ub9ac\uc2a4\ud2b8<\/h2>\n<ol>\n<li>\ub2e8\uc120\ub3c4\uc5d0 \uc720\ud2f8\ub9ac\ud2f0, \ubc1c\uc804\uae30, ATS, \ubd80\ud558 \uc911\uc131\uc120 \ubc0f \ubcf4\ud638 \uc811\uc9c0 \ub3c4\uccb4\ub97c \uadf8\ub9ac\uc2ed\uc2dc\uc624.<\/li>\n<li>\ub450 \uc791\ub3d9 \ubaa8\ub4dc \ubaa8\ub450\uc5d0\uc11c \ubaa8\ub4e0 \uc911\uc131\uc120-\uc811\uc9c0 \ubcf8\ub529\uc744 \uc2dd\ubcc4\ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>\ud574\ub2f9 \uc124\uce58 \uaddc\uc815\uc5d0 \ub530\ub77c \ubc1c\uc804\uae30\uac00 \ubcc4\ub3c4 \ubd84\ub9ac\ub418\ub3c4\ub85d \uc758\ub3c4\ub418\uc5c8\ub294\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>\ub450 \uc18c\uc2a4\uac00 \ub3c5\ub9bd\uc801\uc73c\ub85c \uc804\uc6d0 \uacf5\uae09\ub420 \ub54c \uc9c0\ub77d \ubc0f \ub204\uc804 \ubcf4\ud638\ub97c \uac80\ud1a0\ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>ATS \uc81c\uc870\uc0ac\uc758 \uc911\uc131\uadf9 \ubc30\uc5f4, \uc811\uc810 \uc21c\uc11c, \uc815\uaca9 \ubc0f \ubc30\uc120\ub3c4\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>\uc124\uce58 \uc804\uc5d0 \uc790\uaca9\uc744 \uac16\ucd98 \uc804\uae30 \uc804\ubb38\uac00\uc5d0\uac8c \ud604\uc9c0 \uaddc\uc815\uc5d0 \ub530\ub77c \uc124\uacc4\ub97c \uac80\ud1a0\ubc1b\uc73c\uc2ed\uc2dc\uc624.<\/li>\n<\/ol>\n<h2>\uc774\uac83\uc774 Kuangya \uc804\ud658 \uc2a4\uc704\uce58\uc5d0 \uc801\uc6a9\ub418\ub294 \ubc29\ubc95<\/h2>\n<p>\ucfe0\uc559\uc57c\uc758 <a href=\"https:\/\/cnkuangya.com\/ko\/product\/kgq2-automatic-changeover-switch\/\">KGQ2 \uc790\ub3d9 \uc804\ud658 \uc2a4\uc704\uce58<\/a> \ub294 3\uadf9 \ubc0f 4\uadf9 \ubcc0\ud615\uc73c\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4. \uc2dc\uc2a4\ud15c \uc811\uc9c0 \uc124\uacc4\uac00 \ud655\uc815\ub41c \ud6c4\uc5d0\ub9cc \uadf9 \uad6c\uc131\uc744 \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624. \uadf8\ub7f0 \ub2e4\uc74c \uacf5\uae09\uc5c5\uccb4\uc640 \uc815\ud655\ud55c \ubaa8\ub378\uc758 \ubc30\uc120\ub3c4, \uc815\uaca9 \ubc0f \uc911\uc131 \uc811\uc810 \ub3d9\uc791\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \ub354 \ub113\uc740 \ubc94\uc704\ub97c \ube44\uad50\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/cnkuangya.com\/ko\/automatic-transfer-switch\/\">Kuangya ATS \ubc94\uc704<\/a> \ub610\ub294 <a href=\"https:\/\/cnkuangya.com\/ko\/contact-us\/\">\uc81c\ud488 \uc120\ud0dd \ub17c\uc758\ub97c \uc704\ud574 \ub2e8\uc120 \uacb0\uc120\ub3c4\ub97c \ubcf4\ub0b4\uc8fc\uc2ed\uc2dc\uc624.<\/a>.<\/p>\n<h2>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h3>\ubaa8\ub4e0 3\uc0c1 4\uc120\uc2dd \uc2dc\uc2a4\ud15c\uc5d0 4\uadf9 ATS\uac00 \ud544\uc694\ud569\ub2c8\uae4c?<\/h3>\n<p>\uc544\ub2c8\uc694. \uc911\uc131\uc120 \uac1c\ud3d0 \ud544\uc694 \uc5ec\ubd80\ub294 \uc804\uc6d0 \uc811\uc9c0 \ubc0f \ubcf4\ud638 \uc124\uacc4\uc5d0 \ub530\ub77c \uacb0\uc815\ub429\ub2c8\ub2e4. 4\uc120\uc2dd \ubd80\ud558\ub294 \ud574\ub2f9 \uad6c\uc131\uc774 \uc801\uc808\ud55c \uacbd\uc6b0 \uc194\ub9ac\ub4dc \uc911\uc131\uc120(solid neutral)\uc774 \uc788\ub294 ATS\ub97c \ud1b5\ud574 \uacf5\uae09\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\ubcf4\ud638 \uc811\uc9c0 \ub3c4\uccb4\ub97c \uac1c\ud3d0\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/h3>\n<p>\uc544\ub2c8\uc694. \ubcf4\ud638 \uc811\uc9c0 \uc5f0\uc18d\uc131\uc740 \uc548\uc804 \uc2dc\uc2a4\ud15c\uc758 \uc77c\ubd80\uc785\ub2c8\ub2e4. \uc911\uc131\uc120 \uac1c\ud3d0 \uadf9\uc740 \ubcf4\ud638 \uc811\uc9c0 \uadf9\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n<h3>\ubc1c\uc804\uae30\ub294 \ud56d\uc0c1 \ubcc4\ub3c4\ub85c \ud30c\uc0dd\ub41c \uc2dc\uc2a4\ud15c(separately derived system)\uc785\ub2c8\uae4c?<\/h3>\n<p>\uc544\ub2c8\uc694. \ud574\ub2f9 \ubd84\ub958\ub294 \uc911\uc131\uc120\uc774 \uc808\uccb4 \uc7a5\uce58\ub97c \ud1b5\ud574 \uc5b4\ub5bb\uac8c \uc5f0\uacb0\ub418\ub294\uc9c0, \uadf8\ub9ac\uace0 \uc2dc\uc2a4\ud15c\uc774 \uc5b4\ub5bb\uac8c \uc811\uc9c0\ub418\ub294\uc9c0\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc804\uccb4 \uc124\uce58 \uc0c1\ud0dc\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p>\n<h2>\uae30\uc220 \ucc38\uc870<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.se.com\/us\/en\/faqs\/FAQ000220886\/\" rel=\"noopener\">\uc288\ub098\uc774\ub354 \uc77c\ub809\ud2b8\ub9ad \/ ASCO: \uc808\uccb4 \uc2a4\uc704\uce58 \uc911\uc131\uc120 \uad6c\uc131<\/a> \uc194\ub9ac\ub4dc, \uac1c\ud3d0\ud615 \ubc0f \uc911\ucca9\ud615 \uc911\uc131\uc120 \uad6c\uc131\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/li>\n<li><a href=\"https:\/\/www.se.com\/sg\/en\/download\/document\/ASC-DB-NCTS\/\" rel=\"noopener\">\uc288\ub098\uc774\ub354 \uc77c\ub809\ud2b8\ub9ad \/ ASCO: \uc808\uccb4 \uc2a4\uc704\uce58(Transfer Switch)\uc758 \uc911\uc131\uc120 \uad6c\uc131<\/a> \ubcc4\ub3c4\ub85c \uc811\uc9c0\ub41c \uacc4\ud1b5(Separately Derived System)\uc774 \uc120\uc815\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc5d0 \ub300\ud574 \uc124\uba85\ud569\ub2c8\ub2e4.<\/li>\n<li><a href=\"https:\/\/www.se.com\/us\/en\/work\/featured-articles\/when-to-separately-ground-backup-generator\/\" rel=\"noopener\">Schneider Electric: when to separately ground a backup generator<\/a> gives the grounding context.<\/li>\n<\/ul>\n<p><em>Engineering note:<\/em> This article is a selection guide, not an installation instruction. Follow the approved design, the exact device documentation and local electrical requirements.<\/p>","protected":false},"excerpt":{"rendered":"<p>Short answer: A three-pole automatic transfer switch (ATS) transfers the three phase conductors while the load neutral remains solidly connected. A four-pole ATS also transfers the neutral. The correct choice depends on the system\u2019s neutral-to-earth bonding, whether the generator is a separately derived source, protection design, and the applicable local rules. A four-wire load does [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-4937","post","type-post","status-publish","format-standard","hentry","category-blog"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts\/4937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/comments?post=4937"}],"version-history":[{"count":2,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts\/4937\/revisions"}],"predecessor-version":[{"id":4940,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts\/4937\/revisions\/4940"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/media?parent=4937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/categories?post=4937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/tags?post=4937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}