{"id":10699,"date":"2026-08-29T23:42:53","date_gmt":"2026-08-29T15:42:53","guid":{"rendered":"https:\/\/q8bbzjnpm5.wpdns.site\/?p=10699"},"modified":"2026-08-29T23:42:53","modified_gmt":"2026-08-29T15:42:53","slug":"the-role-of-distribution-transformers-in-modern-energy-systems","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/ko\/news\/the-role-of-distribution-transformers-in-modern-energy-systems\/","title":{"rendered":"\ud604\ub300 \uc5d0\ub108\uc9c0 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ubc30\uc804 \ubcc0\uc555\uae30\uc758 \uc5ed\ud560"},"content":{"rendered":"<p>\uacf5\uacf5 \uc720\ud2f8\ub9ac\ud2f0\uc5d0\uc11c \uacc4\ud68d\uc744 \ub2f4\ub2f9\ud558\ub294 \uc80a\uc740 \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \ub0b4\ub144 \uc608\uc0b0\uc744 \uc900\ube44\ud558\ub294 \ub370 \uc2dc\uac04\uc744 \ubcf4\ub0c5\ub2c8\ub2e4. \uc774\ub294 40 MW \uc6a9\ub7c9\uc758 \uc0c8\ub85c\uc6b4 \ud0dc\uc591\uad11 \ubc1c\uc804\uc18c\ub97c \uc5f0\uacb0\ud558\uace0 \ub3c4\uc2dc \uc8fc\ubcc0\uc5d0 \uac74\uc124\ub41c 3,000 \uac00\uad6c\uc5d0 \uc0c8\ub85c\uc6b4 \uc804\ub825 \uc5f0\uacb0\uc744 \uc81c\uacf5\ud558\ub294 \uac83\ubfd0\ub9cc \uc544\ub2c8\ub77c \uae30\uc874 \ub178\ud6c4 \ub124\ud2b8\uc6cc\ud06c\ub97c \ud1b5\ud574 \ubc30\uc804 \uc190\uc2e4\uc744 \uc904\uc774\ub77c\ub294 \uc0c8\ub85c\uc6b4 \uaddc\uc81c \uc694\uac74\uc744 \ucda9\uc871\ud558\ub294 \uac83\ub3c4 \ud3ec\ud568\ub429\ub2c8\ub2e4. \uadf8\ub140\uc758 \uacc4\ud68d\uc758 \ubaa8\ub4e0 \ub2e8\uacc4\uc5d0\uc11c \ub3d9\uc77c\ud55c \uc7a5\ube44\uac00 \ub098\ud0c0\ub098\uba70, \uc774\ub294 \uadf8\ub140\uc758 \ud504\ub85c\uc81d\ud2b8\ub97c \uac00\ub2a5\ud558\uac8c \ud558\uba74\uc11c\ub3c4 \uc81c\uc57d\uc744 \uac00\ud558\ub294 \uc694\uc18c\uc785\ub2c8\ub2e4 \u2014 <strong>\ubc30\uc804 \ubcc0\uc555\uae30<\/strong>. \ubcc0\uc555\uae30\uac00 \ube44\uc815\uc0c1\uc801\uc73c\ub85c \uc801\uc740 \uc218\ub7c9\uc73c\ub85c \uc874\uc7ac\ud558\uae30 \ub54c\ubb38\uc5d0, \ud53c\ub354\ub294 \uacfc\ubd80\ud558\uac00 \uac78\ub9ac\uace0, \ube44\uc2fc \ub178\ud6c4 \ubcc0\uc555\uae30\ub294 \uc190\uc2e4\uc744 \ucd08\ub798\ud558\uba70, \uc801\uc808\ud55c \ubcc0\uc555\uae30\ub97c \uc0ac\uc6a9\ud558\uba74 \uc804\uccb4 \uc2dc\uc2a4\ud15c\uc774 \ub354 \uc6d0\ud65c\ud574\uc9d1\ub2c8\ub2e4.<\/p>\n<p>\uc774 \uae30\uc0ac\ub294 \ud604\ub300 \uc5d0\ub108\uc9c0 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ubc30\uc804 \ubcc0\uc555\uae30\uc758 \uc5ed\ud560\uc5d0 \ub300\ud574 \ub17c\uc758\ud558\uba70, \ubcc0\uc555\uae30\uac00 \uc218\ud589\ud558\ub294 \uae30\ub2a5\uacfc \ud0dc\uc591\uad11 \ubc1c\uc804, \uc5d0\ub108\uc9c0 \uc800\uc7a5 \ubc0f \uc2a4\ub9c8\ud2b8 \uadf8\ub9ac\ub4dc \uae30\uc220\uc5d0\uc11c\uc758 \uc0c8\ub85c\uc6b4 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc5d0 \ub300\ud55c \uc815\ubcf4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub610\ud55c \uc7a0\uc7ac \uad6c\ub9e4\uc790\uc5d0\uac8c \ud544\uc694\ud55c \uac00\uaca9 \uad6c\uc870\uc640 \uae30\uc900\uc5d0 \ub300\ud55c \uae30\ubcf8 \uc815\ubcf4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10702\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/Choosing-the-Right-Distribution-Transformer.webp\" alt=\"\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"definition\">\ubc30\uc804 \ubcc0\uc555\uae30\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n<p>\uc804\ub825 \uc804\uc1a1\uc120\uc5d0\uc11c \ucd5c\uc885 \uc804\uc555 \ubcc0\ud658 \uc7a5\ube44\ub294 \ubc30\uc804 \ubcc0\uc555\uae30\ub85c \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. \ubc1c\uc804 \ubc0f \uc804\uc1a1\uc740 \ub354 \ub192\uc740 \uc804\uc555 \uc218\uc900\uc778 110 kV, 220 kV \ub4f1\uc5d0\uc11c \uc774\ub8e8\uc5b4\uc9c0\uba70, \ub192\uc740 \uc804\uc555\uc740 \ub0ae\uc740 \uc804\ub958\ub97c \uc720\ub3c4\ud558\uc5ec \uc190\uc2e4\uc744 \uc904\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uace0\uac1d\uc740 400\/230 V(\ub610\ub294 120\/240 V)\ub97c \ud544\uc694\ub85c \ud558\ubbc0\ub85c, \uc804\uc1a1 \uc804\uc555\uc5d0\uc11c \uc0ac\uc6a9\uc5d0 \uc801\ud569\ud55c \uc218\uc900\uc73c\ub85c \uc804\ud658\ud558\ub294 \uacfc\uc815\uc740 \uc5ec\ub7ec \ub2e8\uacc4\ub85c \uc774\ub8e8\uc5b4\uc838\uc57c \ud569\ub2c8\ub2e4. \ubc30\uc804 \ubcc0\uc555\uae30\ub294 \uc774 \ubcc0\ud658 \uacfc\uc815\uc5d0\uc11c \ucd5c\uc885\uc801\uc774\uace0 \uac00\uc7a5 \uc911\uc694\ud55c \ub2e8\uacc4\ub97c \uc218\ud589\ud569\ub2c8\ub2e4.<\/p>\n<p>\uace0\uc804\uc555 \ubcc0\uc804\uc18c\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \uc804\ub825 \ubcc0\uc555\uae30\uc640 \ub2ec\ub9ac, \ubc30\uc804 \ubcc0\uc555\uae30\ub294 \ub2e4\ub978 \uce58\uc218\uc640 \uc5ed\ud560\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc804\ub825 \ubcc0\uc555\uae30(\ubcf4\ud1b5 2,500 kVA \uc774\uc0c1)\ub294 \uc804\uc1a1 \ub610\ub294 \ud558\uc704 \uc804\uc1a1 \ubcc0\uc804\uc18c\uc5d0\uc11c \ubc1c\uacac\ub420 \uc218 \uc788\ub294 \ubc18\uba74, \ubc30\uc804 \ubcc0\uc555\uae30(\uc77c\ubc18\uc801\uc73c\ub85c 5\uc5d0\uc11c 2,500 kVA)\ub294 \uc18c\ube44\uc790\uc5d0 \ub354 \uac00\uae4c\uc6b4 \uacf3(\uc804\uc8fc, \ucf58\ud06c\ub9ac\ud2b8 \uc2ac\ub798\ube0c \ub610\ub294 \uc18c\ud615 \ubcc0\uc804\uc18c \ub0b4\ubd80)\uc5d0 \uc704\uce58\ud569\ub2c8\ub2e4. \uc911\uac04 \ud06c\uae30\uc758 \ub3c4\uc2dc\ub294 \uba87 \uac1c\uc758 \uc804\ub825 \ubcc0\uc555\uae30\uc640 \uc218\ucc9c \uac1c\uc758 \ubc30\uc804 \ubcc0\uc555\uae30\ub97c \uac00\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ubb3c\ub9ac\uc801 \uad00\uc810\uc5d0\uc11c, \ub300\ubd80\ubd84\uc758 \ubc30\uc804 \ubcc0\uc555\uae30\ub294 \uc624\uc77c \ub0c9\uac01(ONAN) \ubc29\uc2dd\uc774\uba70 \uc57c\uc678\uc5d0\uc11c \uc0ac\uc6a9\ub418\uc9c0\ub9cc, \ub4dc\ub77c\uc774 \ud0c0\uc785(\uc8fc\uc870 \uc218\uc9c0) \ubcc0\uc555\uae30\ub294 \uc2e4\ub0b4 \ubc0f \ud654\uc7ac \uc704\ud5d8\uc774 \uc99d\uac00\ud55c \uc7a5\uc18c\uc5d0\uc11c \ubc1c\uacac\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 100 kVA \uc6a9\ub7c9\uc758 \uc0bc\uc0c1 \uc624\uc77c \uce68\uc9c0 \ubcc0\uc555\uae30\ub294 700 kg\uc5d0\uc11c 900 kg \uc0ac\uc774\uc758 \ubb34\uac8c\ub97c \uac00\uc9c0\uba70, \uce58\uc218\ub294 1.3 \u00d7 0.9 \u00d7 1.4 m\uc785\ub2c8\ub2e4. \ubc18\uba74, 100 kVA \ub4dc\ub77c\uc774 \ud0c0\uc785 \ubcc0\uc555\uae30\ub294 \ud06c\uae30\uc640 \ubb34\uac8c\uac00 \ub354 \uc791\uc9c0\ub9cc \uc791\ub3d9 \uc2dc \uc18c\uc74c\uc774 \ub354 \ud07d\ub2c8\ub2e4.<\/p>\n<h2 id=\"role\">\uadf8\ub9ac\ub4dc\uc5d0\uc11c\uc758 \ubc30\uc804 \ubcc0\uc555\uae30\uc758 \uc5ed\ud560<\/h2>\n<p>\ubc30\uc804 \ubcc0\uc555\uae30\ub294 \ud604\ub300 \uc5d0\ub108\uc9c0 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ub124 \uac00\uc9c0 \uc791\uc5c5\uc744 \uc218\ud589\ud558\uba70, \uac01\uac01\uc740 \ub2f9\uc2e0\uc774 \uad6c\ub9e4\ud558\ub294 \uac83\uc744 \ubcc0\ud654\uc2dc\ud0a4\uae30 \ub54c\ubb38\uc5d0 \uc774\ud574\ud560 \uac00\uce58\uac00 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<table>\n<thead>\n<tr>\n<th>\uc5ed\ud560<\/th>\n<th>\uc218\ud589\ud558\ub294 \uc791\uc5c5<\/th>\n<th>\uc2e4\uc81c \uc0ac\ub840<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc804\uc555 \ub2e8\uacc4 \uc870\uc815<\/td>\n<td>6\u201335 kV MV\ub97c 400\/230 V \ub610\ub294 120\/240 V LV\ub85c \uc904\uc785\ub2c8\ub2e4.<\/td>\n<td>\uc8fc\uac70 \uc9c0\uc5ed\uc5d0 \uc804\ub825\uc744 \uacf5\uae09\ud558\ub294 11\/0.4 kV \uc720\ub2db<\/td>\n<\/tr>\n<tr>\n<td>\uc2dc\uc2a4\ud15c \ubd84\ub9ac \ubc0f \uc811\uc9c0<\/td>\n<td>LV \ub124\ud2b8\uc6cc\ud06c\uc5d0 \ub300\ud55c \uc815\uc758\ub41c \uc911\uc131 \ubc0f \uc811\uc9c0 \uae30\uc900 \uc81c\uacf5<\/td>\n<td>\ub2e8\ub2e8\ud788 \uc811\uc9c0\ub41c LV \uc911\uc131\uc744 \uc0dd\uc131\ud558\ub294 Dyn11 \ubca1\ud130 \uadf8\ub8f9<\/td>\n<\/tr>\n<tr>\n<td>\ubd80\ud558 \uc9d1\uc911 \/ \uaca9\ub9ac<\/td>\n<td>\ud558\ub098\uc758 MV \ud53c\ub354\uac00 \ub9ce\uc740 \uc18c\uaddc\ubaa8 \uc18c\ube44\uc790\uc5d0\uac8c \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud558\uba74\uc11c \uacb0\ud568\uc744 \uaca9\ub9ac\ud560 \uc218 \uc788\uac8c \ud568<\/td>\n<td>\uacb0\ud568\uc774 \uc788\ub294 \uac70\ub9ac \ubcc0\uc555\uae30\uac00 \ud53c\ub354\ub97c \uc815\uc804\uc2dc\ud0a4\uc9c0 \uc54a\uc74c<\/td>\n<\/tr>\n<tr>\n<td>\uc804\uc555 \uc870\uc815<\/td>\n<td>\ubd80\ud558 \ubcc0\ud654\uc5d0 \ub530\ub77c LV \uc804\uc555\uc744 \uc720\uc9c0\ud558\ub294 \uc628\ub85c\ub4dc \ud0ed \uccb4\uc778\uc800<\/td>\n<td>OLTC\ub294 \uc77c\uc77c \ubd80\ud558 \uace1\uc120\uc5d0 \ub530\ub77c 400 V\ub97c \u00b15% \uc774\ub0b4\ub85c \uc720\uc9c0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u201c\uc2dc\uc2a4\ud15c \ubd84\ub9ac\u201d \uc5ed\ud560\uc5d0 \ub300\ud574 \ud2b9\ubcc4\ud788 \uc5b8\uae09\ud574\uc57c \ud569\ub2c8\ub2e4. \ubc30\uc804 \ubcc0\uc555\uae30\uc758 \ubca1\ud130 \uadf8\ub8f9(\uc77c\ubc18\uc801\uc73c\ub85c IEC \uc2dc\uc7a5\uc5d0\uc11c Dyn11)\uc740 \uc911\uc131\uc774 \uc5b4\ub5bb\uac8c \uc811\uc9c0\ub418\ub294\uc9c0\ub97c \uc815\uc758\ud569\ub2c8\ub2e4. \uc811\uc9c0 \uac1c\ub150\uc740 \uc774\ud6c4 LV \uce21\uc758 \ubcf4\ud638 \uacc4\uc804\uae30 \uae30\uc220 \ubc0f \uadf8 \ud6a8\uc728\uc131\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ubbc0\ub85c, \ud3c9\ud310 \uc788\ub294 \uc81c\uc870\uc5c5\uccb4\uac00 \uac00\uc7a5 \uba3c\uc800 \uc9c8\ubb38\ud558\ub294 \uc0ac\ud56d\uc774\uae30\ub3c4 \ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"losses\">\uc190\uc2e4 \ubc0f \ud6a8\uc728\uc131: \uc65c \uc774\ub4e4\uc774 \ub2f9\uc2e0\uc774 \uc0dd\uac01\ud558\ub294 \uac83\ubcf4\ub2e4 \ub354 \uc911\uc694\ud55c\uac00<\/h2>\n<p>\ud604\uc7ac \ub300\ubd80\ubd84\uc758 \uc804\uae30 \ubc30\uc804 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ubc30\uc804 \ubcc0\uc555\uae30\ub294 \uae30\uc220\uc801 \uc190\uc2e4\uc758 \uac00\uc7a5 \ud070 \uac1c\ubcc4 \ucd9c\ucc98\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uad6d\uc81c \uc5d0\ub108\uc9c0 \uae30\uad6c\uc5d0 \ub530\ub974\uba74, \ubc30\uc804 \uc190\uc2e4\uc740 \uc804 \uc138\uacc4 \uc804\uae30 \uc0dd\uc0b0\ub7c9\uc758 \uc57d 4\u20136%\ub85c \ud3c9\uac00\ub418\uba70, \ubc30\uc804 \ubcc0\uc555\uae30\uac00 \uc0c1\ub2f9\ud55c \ucc45\uc784\uc744 \uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ubc30\uc804 \ubcc0\uc555\uae30\ub294 \uc5f0\uac04 \ucd5c\ub300 8,760\uc2dc\uac04 \uc791\ub3d9\ud558\uba70, \ub530\ub77c\uc11c \uc190\uc2e4\uc758 \uc791\uc740 \ucc28\uc774\ub3c4 \uc804\uad6d\uc801\uc73c\ub85c \ud070 \uc190\uc2e4\ub85c \uc774\uc5b4\uc9d1\ub2c8\ub2e4.<\/p>\n<p>\uc11c\ub85c \ub2e4\ub974\uac8c \uc791\uc6a9\ud558\ub294 \ub450 \uac00\uc9c0 \uc190\uc2e4 \uad6c\uc131 \uc694\uc18c\uac00 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<p>\ubb34\ubd80\ud558 \uc190\uc2e4(\ucca0 \uc190\uc2e4\uc774\ub77c\uace0\ub3c4 \ud568) \u2013 \uc77c\uc815\ud558\uace0 \ud56d\uc0c1 \uc874\uc7ac\ud558\ub294 \uc190\uc2e4\uc785\ub2c8\ub2e4. \uc774\ub294 \uc801\uc6a9\ub41c \uc804\uc555\uc758 \uc81c\uacf1\uc73c\ub85c \uc815\uc758\ub418\uba70, \uc804\uae30 \ubd80\ud558\uac00 \uc801\uc6a9\ub420 \ub54c \ubcc0\uacbd\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<br \/>\n\ubd80\ud558 \uc190\uc2e4(\uad6c\ub9ac \uc190\uc2e4\uc774\ub77c\uace0\ub3c4 \ud568) \u2013 \ubd80\ud558\uc5d0 \uc758\ud574 \uc18c\ube44\ub418\ub294 \uc804\ub958\uc758 \uc81c\uacf1\uc73c\ub85c \uc815\uc758\ub418\uba70, \ub530\ub77c\uc11c \ubd80\ud558 \uc99d\uac00\uc728\uc5d0 \ub530\ub77c \uc99d\uac00\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc720\ub7fd \uc5f0\ud569 \uc5d0\ucf54\ub514\uc790\uc778 \ubc95\ub960, \ubbf8\uad6d \uc5d0\ub108\uc9c0\ubd80 \uaddc\uc815, \uc911\uad6d\uc758 GB 20052\uc640 \uac19\uc740 \ud604\ub300 \ud6a8\uc728\uc131 \uae30\uc900\uc740 \ubb34\ubd80\ud558 \uc190\uc2e4\uc758 \uac10\uc18c\ub97c \uac15\uc81c\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \ube44\uc815\uc9c8 \ucf54\uc5b4\ub97c \uac00\uc9c4 1\ub4f1\uae09 \ubc30\uc804 \ubcc0\uc555\uae30\ub294 1990\ub144\ub300\uc5d0 \uc124\uacc4\ub41c \uc81c\ud488\uc5d0 \ube44\ud574 \ucca0 \uc190\uc2e4\uc744 70\u201380%\uae4c\uc9c0 \uc904\uc77c \uc218 \uc788\ub294 \uac00\ub2a5\uc131\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c 630 kVA \ubcc0\uc555\uae30\uc758 \uacbd\uc6b0, \uc55e\uc11c \uc5b8\uae09\ud55c \ucc28\uc774\ub294 \uc5f0\uac04 \uc804\uae30 \ube44\uc6a9\uc5d0\uc11c $300\u2013600\uc758 \uc808\uac10\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4. \uc544\ub798 \ud45c\ub294 \uc9c0\uc18d\uc801\uc73c\ub85c \uc6b4\uc601\ub418\ub294 630 kVA \ubcc0\uc555\uae30 \uc124\uce58\uc5d0 \uc758\ud574 \uc18c\ube44\ub418\ub294 \uc5d0\ub108\uc9c0\uc640 \uad00\ub828\ub41c \uc5f0\uac04 \uc218\uce58\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\uc124\uacc4 \uc5f0\ub300<\/th>\n<th>\ubb34\ubd80\ud558 \uc190\uc2e4 (630 kVA)<\/th>\n<th>\uc5f0\uac04 \ucca0 \uc5d0\ub108\uc9c0<\/th>\n<th>$0.10\/kWh \uae30\uc900 \uc5f0\uac04 \ube44\uc6a9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1990\ub144\ub300 (S7 \ud074\ub798\uc2a4)<\/td>\n<td>\u2248 1,800\u20132,000 W<\/td>\n<td>\u2248 15,800\u201317,500 kWh<\/td>\n<td>$1,580\u2013$1,750<\/td>\n<\/tr>\n<tr>\n<td>S11 \ud074\ub798\uc2a4 (3\ub4f1\uae09)<\/td>\n<td>\u2248 1,000\u20131,100 W<\/td>\n<td>\u2248 8,800\u20139,600 kWh<\/td>\n<td>$880\u2013$960<\/td>\n<\/tr>\n<tr>\n<td>S13 \ud074\ub798\uc2a4 (2\ub4f1\uae09)<\/td>\n<td>\u2248 750\u2013850 W<\/td>\n<td>\u2248 6,600\u20137,400 kWh<\/td>\n<td>$660\u2013$740<\/td>\n<\/tr>\n<tr>\n<td>\ube44\uc815\uc9c8 (1\ub4f1\uae09)<\/td>\n<td>\u2248 500\u2013600 W<\/td>\n<td>\u2248 4,400\u20135,300 kWh<\/td>\n<td>$440\u2013$530<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uba87 \ucc9c \ub300\uc758 \uc7a5\ube44\ub97c \ubcf4\uc720\ud55c \uc804\uccb4\uc5d0\uc11c, S11\uae09 \uac15\ucca0 \ub300\uc2e0 1\uae09 \ube44\uc815\uc9c8 \ucf54\uc5b4\ub97c \uc120\ud0dd\ud558\uba74 \ucca0 \uc190\uc2e4\ub9cc\uc73c\ub85c\ub3c4 \ub9e4\ub144 6\uc790\ub9ac \uc218\uc758 \ube44\uc6a9\uc744 \uc870\uc6a9\ud788 \uc808\uac10\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4 \u2014 \ubd80\ud558 \uc190\uc2e4 \uc808\uac10\uc774 \uacc4\uc0b0\ub418\uae30 \uc804\uc785\ub2c8\ub2e4.<\/p>\n<h2 id=\"types\">\ubc30\uc804 \ubcc0\uc555\uae30 \uc720\ud615<\/h2>\n<p>\uad6c\ub9e4\uc790\ub294 \uc5ec\ub7ec \uacc4\uc5f4 \uc911\uc5d0\uc11c \uc120\ud0dd\ud558\uba70, \uc120\ud0dd\uc740 \uc7a5\ucc29, \ud658\uacbd \ubc0f \ud654\uc7ac \uc548\uc804\uc5d0 \uc758\ud574 \uacb0\uc815\ub429\ub2c8\ub2e4. \uc544\ub798 \ud45c\ub294 \uc77c\ubc18 \ub4f1\uae09\uc5d0 \ub300\ud55c \ud604\uc2e4\uc801\uc778 \uac00\uaca9 \ubc94\uc704(FOB, \uc911\uad6d)\ub97c \uc694\uc57d\ud569\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\uc720\ud615<\/th>\n<th>\uc815\uaca9<\/th>\n<th>\uc77c\ubc18\uc801\uc778 \uc0ac\uc6a9<\/th>\n<th>\uac00\uaca9 \ubc94\uc704 (FOB)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uae30\ub465 \uc7a5\ucc29\ud615 (\uc624\uc77c)<\/td>\n<td>5\u2013500 kVA<\/td>\n<td>\ub18d\ucd0c \ubc0f \uad50\uc678 \uacf5\uc911 \ub124\ud2b8\uc6cc\ud06c<\/td>\n<td>$350\u2013$6,500<\/td>\n<\/tr>\n<tr>\n<td>\ud328\ub4dc \uc7a5\ucc29\ud615 (\uc624\uc77c)<\/td>\n<td>25\u20132,500 kVA<\/td>\n<td>\ub3c4\uc2dc \uc9c0\ud558 \ub124\ud2b8\uc6cc\ud06c, \uc7a0\uae08\ud615 \uc778\ud074\ub85c\uc800<\/td>\n<td>$900\u2013$12,000<\/td>\n<\/tr>\n<tr>\n<td>\uac74\uc2dd\ud615 (\uc8fc\uc870 \uc218\uc9c0)<\/td>\n<td>50\u20132,500 kVA<\/td>\n<td>\uac74\ubb3c, \ud130\ub110, \ubcd1\uc6d0, \ud654\uc7ac \ubbfc\uac10 \uc9c0\uc5ed<\/td>\n<td>$3,500\u2013$30,000<\/td>\n<\/tr>\n<tr>\n<td>\ube44\uc815\uc9c8 \ucf54\uc5b4 (\uc624\uc77c)<\/td>\n<td>15\u20131,000 kVA<\/td>\n<td>\ud6a8\uc728\uc131 \uc911\uc2ec \ud504\ub85c\uadf8\ub7a8, 1\uae09 \ubaa9\ud45c<\/td>\n<td>$900\u2013$15,000<\/td>\n<\/tr>\n<tr>\n<td>\ucef4\ud329\ud2b8 \ubc15\uc2a4 \ubcc0\uc804\uc18c \ubcc0\uc555\uae30<\/td>\n<td>100\u20132,500 kVA<\/td>\n<td>\ubc15\uc2a4\ud615 \uc2a4\ud14c\uc774\uc158\uc5d0 \ud1b5\ud569\ub428<\/td>\n<td>$2,500\u2013$18,000<\/td>\n<\/tr>\n<tr>\n<td>\ubc00\ud3d0\ud615 (\uc624\uc77c)<\/td>\n<td>50\u2013630 kVA<\/td>\n<td>\uc2b5\uae30 \ucde8\uc57d \ud574\uc548 \ubc0f \uc2b5\ud55c \uc9c0\uc5ed<\/td>\n<td>$800\u2013$8,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc774 \uce74\ud0c8\ub85c\uadf8\ub97c \ubcc0\ud654\uc2dc\ud0a4\ub294 \ub450 \uac00\uc9c0 \uc8fc\uc694 \ud2b8\ub80c\ub4dc\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uccab \ubc88\uc9f8 \ud2b8\ub80c\ub4dc\ub294 \ud654\uc7ac \uc704\ud5d8 \ubc0f \uc624\uc77c \ubcf4\uad00\uacfc \uad00\ub828\ub41c \ube44\uc6a9\uc744 \uc81c\uac70\ud568\uc5d0 \ub530\ub77c \uc2e4\ub0b4 \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c \uac74\uc2dd\ud615 \uc7a5\ube44\uc758 \uc99d\uac00\uc785\ub2c8\ub2e4. \ub450 \ubc88\uc9f8 \ud2b8\ub80c\ub4dc\ub294 \ud6a8\uc728\uc131 \ub9ac\ubca0\uc774\ud2b8 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \ube44\uc815\uc9c8 \ucf54\uc5b4 \uc7a5\ube44\uc758 \uc0ac\uc6a9\uc73c\ub85c, \uc804\ud1b5\uc801\uc778 CRGO \uc124\uacc4\uc5d0 \ube44\ud574 15%\u201325%\uc758 \ucd94\uac00 \ube44\uc6a9\uc774 3\u20136\ub144\uc758 \uc808\uc57d\uc744 \ud1b5\ud574 \ud68c\uc218\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2 id=\"modern\">\ud604\ub300\uc758 \uc5ed\ud560: \uc7ac\uc0dd \uac00\ub2a5 \uc5d0\ub108\uc9c0, \uc800\uc7a5, \uc2a4\ub9c8\ud2b8 \uadf8\ub9ac\ub4dc<\/h2>\n<p>\ubc30\uc804 \ubcc0\uc555\uae30\ub97c \ub2e8\uc21c\ud55c \uc218\ub3d9 \uc7a5\uce58\ub85c \ubb18\uc0ac\ud558\ub294 \uc804\ud1b5\uc801\uc778 \ubc29\uc2dd\uc740 \ub354 \uc774\uc0c1 \uc801\uc6a9\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc624\ub298\ub0a0\uc758 \ubc30\uc804 \ubcc0\uc555\uae30\ub294 \uc804\ub825 \uacf5\uae09 \uc2dc\uc2a4\ud15c\uc758 \ub2a5\ub3d9\uc801\uc778 \uc694\uc18c\ub85c \ube60\ub974\uac8c \ubcc0\ud654\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<br \/>\n\ud0dc\uc591\uad11 \ubc0f \uc804\uae30\ucc28 \ud1b5\ud569: \uc625\uc0c1 \ud0dc\uc591\uad11 \uc2a4\ud14c\uc774\uc158\uacfc \uc804\uae30\ucc28 \ucda9\uc804\uae30\ub294 \ubcc0\uc555\uae30\uc5d0\uc11c \uc804\uae30\ub97c \uc591\ubc29\ud5a5\uc73c\ub85c \ud750\ub974\uac8c \ud569\ub2c8\ub2e4. \uc804\ub958\uc758 \uc591\ubc29\ud5a5 \ud750\ub984\uc740 \ub2e8\ubc29\ud5a5 \uc804\ub958\ub97c \uc704\ud574 \uc124\uacc4\ub41c \ubcc0\uc555\uae30\uc758 \uacfc\uc5f4\uc744 \uc720\ubc1c\ud558\ub294 \uc0c8\ub85c\uc6b4 \ubd80\ud558 \uccb4\uacc4\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \uc77c\ubd80 \uc720\ud2f8\ub9ac\ud2f0\ub294 \uc774\ubbf8 \ud0dc\uc591\uad11 \uc2a4\ud14c\uc774\uc158\uc758 \uce68\ud22c\uac00 \ub192\uc740 \uc9c0\uc5ed\uc5d0\uc11c \ubcc0\uc555\uae30\uc758 \uc6a9\ub7c9\uc744 15-20% \uc904\uc774\uac70\ub098 \uc2a4\ub9c8\ud2b8 \ud0ed \uccb4\uc778\uc800\ub97c \ub3c4\uc785\ud588\uc2b5\ub2c8\ub2e4.<br \/>\n\ubc30\ud130\ub9ac \uc800\uc7a5 \ud1b5\ud569: \ucee4\ubba4\ub2c8\ud2f0 \uc5d0\ub108\uc9c0 \uc800\uc7a5 \uc2a4\ud14c\uc774\uc158\uc740 \ubc30\uc804 \ubcc0\uc555\uae30\ub97c \ud1b5\ud574 \ucda9\uc804 \ubc0f \ubc29\uc804\ud558\uc5ec \ubd80\ud558\ub97c \ud3c9\ud0c4\ud558\uac8c \ud558\uace0 \ubcc0\uc555\uae30\uc758 \uc11c\ube44\uc2a4 \uc218\uba85\uc744 \uc5f0\uc7a5\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc90d\ub2c8\ub2e4.<br \/>\n\uc2a4\ub9c8\ud2b8 \uadf8\ub9ac\ub4dc \uac10\uc9c0: \ud604\ub300 \ubcc0\uc555\uae30\ub294 \ub0b4\ubd80 \uc628\ub3c4 \ubc0f \uc624\uc77c \uc218\uc900 \uc13c\uc11c\uc640 \ubb34\uc120 \ud1b5\uc2e0 \uc7a5\uce58\ub97c \uac16\ucd94\uace0 \uc788\uc5b4 \ubcc0\uc555\uae30\uc758 \uc0c1\ud0dc\uc5d0 \ub300\ud55c \ub370\uc774\ud130\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<br \/>\n\uc218\uc694 \uc720\uc5f0\uc131: \uc0c8\ub85c\uc6b4 \uc2a4\ub9c8\ud2b8 \ubcc0\uc555\uae30\ub294 \ubd80\ud558 \ud0ed \uccb4\uc778\uc800\uc640 \uc6d0\uaca9 \ubaa8\ub2c8\ud130\ub9c1 \uc2dc\uc2a4\ud15c\uc744 \uac16\ucd94\uace0 \uc788\uc5b4 \uc6b4\uc601 \uc778\ub825\uc774 \ud53c\ud06c \uc2dc\uac04 \ub3d9\uc548 \uc804\uc555\uc744 \ub0ae\ucd9c \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4 (\uc804\ub825 \uc808\uc57d \uc804\uc555 \uac10\uc18c \ub610\ub294 CVR).<br \/>\n\uc774\ub7ec\ud55c \ubaa8\ub4e0 \uc694\uc18c\ub294 \uc870\ub2ec \ud504\ub85c\uc138\uc2a4\ub97c \ubcc0\ud654\uc2dc\ud0b5\ub2c8\ub2e4: \uc624\ub298\ub0a0\uc758 \uc720\ud2f8\ub9ac\ud2f0 \uc785\ucc30\uc740 \uc885\uc885 100 kVA\uc758 \ubcc0\uc555\uae30\uc5d0\ub3c4 IEC 61850\uc5d0 \uc900\uc218\ud558\ub294 \ubaa8\ub2c8\ud130\ub9c1 \ubc0f \ud1b5\uc2e0 \ud3ec\ud2b8\ub97c \uac16\ucd98 \uc7a5\uce58 \uc0ac\uc6a9\uc744 \uc694\uad6c\ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"specs\">\uc8fc\uc694 \uc0ac\uc591 \ubc0f \ud45c\uc900<\/h2>\n<p>\ubaa8\ub4e0 \ubc30\uc804 \ubcc0\uc555\uae30\ub294 IEC 60076 \uc2dc\ub9ac\uc988(\ubbf8\uad6d\uc5d0\uc11c\ub294 IEEE C57.12)\uc5d0 \ub530\ub77c \uaddc\uaca9\ud654\ub418\uace0 \ud14c\uc2a4\ud2b8\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 400 kVA \uc0bc\uc0c1 \uc7a5\uce58\uc758 \uc8fc\uc694 \uaddc\uaca9 \ud544\ub4dc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<table>\n<thead>\n<tr>\n<th>\ub9e4\uac1c\ubcc0\uc218<\/th>\n<th>\uc77c\ubc18 \uac12 (400 kVA)<\/th>\n<th>\ud45c\uc900<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc815\uaca9 \uc804\ub825<\/td>\n<td>400 kVA, ONAN<\/td>\n<td>IEC 60076-1<\/td>\n<\/tr>\n<tr>\n<td>\uc804\uc555 \ube44\uc728<\/td>\n<td>11,000 \u00b1 2\u00d72.5% \/ 400\u2013433 V<\/td>\n<td>IEC 60076-1<\/td>\n<\/tr>\n<tr>\n<td>\ubca1\ud130 \uadf8\ub8f9<\/td>\n<td>Dyn11<\/td>\n<td>IEC 60076-1<\/td>\n<\/tr>\n<tr>\n<td>\ub2e8\ub77d \uc784\ud53c\ub358\uc2a4<\/td>\n<td>4.5\u20135.0%<\/td>\n<td>IEC 60076-5<\/td>\n<\/tr>\n<tr>\n<td>\ubb34\ubd80\ud558 \uc190\uc2e4<\/td>\n<td>\u2264 570\u2013650 W (S11 \ud074\ub798\uc2a4)<\/td>\n<td>IEC 60076-1 \/ GB 20052<\/td>\n<\/tr>\n<tr>\n<td>75\u00b0C\uc5d0\uc11c\uc758 \ubd80\ud558 \uc190\uc2e4<\/td>\n<td>\u2264 4,000\u20134,500 W<\/td>\n<td>IEC 60076-1<\/td>\n<\/tr>\n<tr>\n<td>\uc784\ud384\uc2a4 \ub0b4\uc804\uc555<\/td>\n<td>75 kVp (LI)<\/td>\n<td>IEC 60076-3<\/td>\n<\/tr>\n<tr>\n<td>\uad8c\uc120 \uc628\ub3c4 \uc0c1\uc2b9<\/td>\n<td>\u2264 65 K (\ud3c9\uade0)<\/td>\n<td>IEC 60076-2<\/td>\n<\/tr>\n<tr>\n<td>\uc18c\uc74c \uc218\uc900<\/td>\n<td>\u2264 52\u201355 dB(A)<\/td>\n<td>IEC 60076-10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\ubbf8\uad6d\uc73c\ub85c \ud5a5\ud558\ub294 \ud504\ub85c\uc81d\ud2b8\uc758 \uacbd\uc6b0, \uc77c\ubc18 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub300\ud574 IEEE C57.12.00\uc744 \uc0ac\uc6a9\ud558\uace0, \ud328\ub4dc \uc7a5\ucc29 \uc7a5\uce58\uc5d0 \ub300\ud574 C57.12.20\uc744 \uc0ac\uc6a9\ud558\uba70, \ubaa9\uc801\uc9c0 \uc8fc\uc5d0\uc11c NEMA TP-1 \ud6a8\uc728\uc131\uc774 \uc801\uc6a9\ub418\ub294\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \ubaa8\ub4e0 \uc2dc\uc7a5\uc5d0 \ub300\ud574 \ub2e8\uc704\ubcc4 \uc815\uae30 \ud14c\uc2a4\ud2b8 \uc778\uc99d\uc11c \ubc0f \uc124\uacc4 \uc720\ud615 \ud14c\uc2a4\ud2b8 \ubcf4\uace0\uc11c\ub97c \uc694\uad6c\ud558\uc2ed\uc2dc\uc624.<\/p>\n<h2 id=\"sizing\">\ud06c\uae30 \uc870\uc815 \ubc0f \ubd80\ud558 \uad00\ub9ac<\/h2>\n<p>\uc801\uc808\ud55c \ubc30\uc804 \ubcc0\uc555\uae30 \ud06c\uae30 \uc870\uc815\uc740 \ubd80\ud558 \uc5f0\uad6c\ub97c \ud544\uc694\ub85c \ud558\uba70, \ub2e8\uc21c\ud55c \uc0c1\uc0c1\ub825\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc6b0\ub9ac\ub294 \uc804 \uc138\uacc4 \uc804\ub825 \ud68c\uc0ac\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc744 \ub530\ub97c \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<p>\uc5f0\uacb0\ub41c \ubd80\ud558\ub97c \uacb0\uc815\ud558\uc2ed\uc2dc\uc624 (\uc774\ub294 kW\ub85c \uce21\uc815\ub41c \ud558\ub958\uc758 \ucd1d \ubd80\ud558\uc758 \ud569\uc785\ub2c8\ub2e4).<br \/>\n\uc5f0\uacb0\ub41c \ubd80\ud558\uc758 \ub2e4\uc591\uc131\uc744 \uace0\ub824\ud558\uc2ed\uc2dc\uc624 (\uc8fc\uac70 \uc9c0\uc5ed\uc5d0\uc11c\ub294 \ub2e4\uc591\uc131 \uacc4\uc218\uac00 \uc77c\ubc18\uc801\uc73c\ub85c 0.4-0.6 \ubc94\uc704\uc77c \uac83\uc73c\ub85c \uc608\uc0c1\ud560 \uc218 \uc788\uc73c\uba70, \uc0c1\uc5c5 \uc9c0\uc5ed\uc5d0\uc11c\ub294 0.6-0.8 \ubc94\uc704\uc77c \uac83\uc785\ub2c8\ub2e4).<br \/>\n\uc5bb\uc740 \ud569\uacc4\ub97c \uc5ed\ub960\ub85c \ub098\ub204\uc2ed\uc2dc\uc624 (\ud63c\ud569 \ubd80\ud558\uc758 \uacbd\uc6b0 \uc77c\ubc18\uc801\uc73c\ub85c 0.85-0.95 \uc0ac\uc774\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c kW\ub97c kVA\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4).<br \/>\n\ucd94\uac00 \uc131\uc7a5 \uc5ec\uc720\ub97c \ucd94\uac00\ud558\uc2ed\uc2dc\uc624 (\ubcc0\uc555\uae30 \uc218\uba85 \ub3d9\uc548 \ubc1c\uc0dd\ud558\ub294 \ubbf8\ub798 \ubd80\ud558 \uc99d\uac00\uc5d0 \ub300\ud574 15-25% \ubc94\uc704).<br \/>\n\uc804\uc555 \uac15\ud558\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624 (\ud2b9\ud788 \uae34 LV \ubc30\uc804 \uad6c\uac04\uc5d0\uc11c).<\/p>\n<p>\uc77c\ubc18\uc801\uc778 \uaddc\uce59\uc73c\ub85c, 100 kVA \ubcc0\uc555\uae30\ub294 60-120 \uac00\uad6c\uc5d0 \uc804\ub825\uc744 \uacf5\uae09\ud558\uace0, 315 kVA \ubcc0\uc555\uae30\ub294 \uc18c\uaddc\ubaa8 \uc0c1\uc5c5 \uc9c0\uad6c \ub610\ub294 \ucd5c\ub300 200-400 \uac00\uad6c\uc5d0 \uc804\ub825\uc744 \uacf5\uae09\ud560 \uc218 \uc788\uc73c\uba70, 630 kVA \ubcc0\uc555\uae30\ub294 \uc9c0\uc5ed \ube44\uc988\ub2c8\uc2a4 \uc13c\ud130 \ub610\ub294 \uc18c\uaddc\ubaa8 \uc0b0\uc5c5 \uc9c0\uc5ed\uc5d0 \uc804\ub825\uc744 \uacf5\uae09\ud569\ub2c8\ub2e4. \ubcc0\uc555\uae30\ub97c \uacfc\ub3c4\ud558\uac8c \ud06c\uae30 \uc870\uc815\ud558\uba74 \ubb34\ubd80\ud558 \uc190\uc2e4\ub85c \uc778\ud574 \ub3c8\uc744 \ub0ad\ube44\ud558\uac8c \ub418\uba70, \ud06c\uae30\uac00 \uc791\uc73c\uba74 \ubcc0\uc555\uae30\uac00 \ub354 \ube68\ub9ac \uace0\uc7a5\ub0a9\ub2c8\ub2e4. \ub450 \uac00\uc9c0 \uc624\ub958 \ubaa8\ub450 \ubc1c\uc0dd\uc744 \ubc29\uc9c0\ud558\ub294 \uc801\ub2f9\ud55c \uc5d4\uc9c0\ub2c8\uc5b4 \ube44\uc6a9\ubcf4\ub2e4 \ud6e8\uc52c \ub354 \ube44\uc309\ub2c8\ub2e4.<\/p>\n<h2 id=\"brands\">\uc8fc\uc694 \ube0c\ub79c\ub4dc \ubc0f \uac00\uaca9 \ubc94\uc704<\/h2>\n<p>\uc2dc\uc7a5\uc740 \ud504\ub9ac\ubbf8\uc5c4 \uad6d\uc81c \ube0c\ub79c\ub4dc\uc640 \ube44\uc6a9 \uacbd\uc7c1\ub825\uc774 \uc788\ub294 \uc911\uad6d \ubc0f \uc778\ub3c4 \uc81c\uc870\uc5c5\uccb4\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \uc544\ub798 \uac00\uaca9\uc740 FOB \uae30\uc900\uc73c\ub85c 400 kVA \uc0bc\uc0c1 \uc624\uc77c \uce68\uc9c0 \uc7a5\uce58\uc5d0 \ub300\ud55c \uc9c0\ud45c\uc785\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\ube0c\ub79c\ub4dc<\/th>\n<th>\uad6d\uac00<\/th>\n<th>400 kVA \uac00\uaca9 \ubc94\uc704<\/th>\n<th>\ube44\uace0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>ABB<\/td>\n<td>\uc2a4\uc704\uc2a4<\/td>\n<td>$14,000\u2013$22,000<\/td>\n<td>\ud504\ub9ac\ubbf8\uc5c4 \ud488\uc9c8, \uae00\ub85c\ubc8c \uc11c\ube44\uc2a4<\/td>\n<\/tr>\n<tr>\n<td>\uc9c0\uba58\uc2a4<\/td>\n<td>\ub3c5\uc77c<\/td>\n<td>$13,500\u2013$23,000<\/td>\n<td>\uac15\ub825\ud55c \uc2a4\ub9c8\ud2b8 \uadf8\ub9ac\ub4dc \ud1b5\ud569<\/td>\n<\/tr>\n<tr>\n<td>\uc288\ub098\uc774\ub354 \uc77c\ub809\ud2b8\ub9ad<\/td>\n<td>\ud504\ub791\uc2a4<\/td>\n<td>$13,000\u2013$21,000<\/td>\n<td>\uc644\uc804\ud55c LV\/MV \uc0dd\ud0dc\uacc4<\/td>\n<\/tr>\n<tr>\n<td>\ud788\ud0c0\uce58 \uc5d0\ub108\uc9c0<\/td>\n<td>\uc2a4\uc704\uc2a4\/\uc77c\ubcf8<\/td>\n<td>$15,000\u2013$24,000<\/td>\n<td>\uc720\ud2f8\ub9ac\ud2f0 \ub4f1\uae09 \uc2e0\ub8b0\uc131 \uc720\uc0b0<\/td>\n<\/tr>\n<tr>\n<td>\uc774\ud2bc<\/td>\n<td>\uc544\uc77c\ub79c\ub4dc\/\ubbf8\uad6d<\/td>\n<td>$12,000\u2013$20,000<\/td>\n<td>\uc544\uba54\ub9ac\uce74\uc2a4 \ud328\ub4dc \uc7a5\ucc29\uc5d0\uc11c \uac15\ub825\ud568<\/td>\n<\/tr>\n<tr>\n<td>TBEA \/ China XD<\/td>\n<td>\uc911\uad6d<\/td>\n<td>$5,500\u2013$9,000<\/td>\n<td>\ub300\uaddc\ubaa8 \uad6d\uac00 \uc9c0\uc6d0 \uc81c\uc870\uc5c5\uccb4<\/td>\n<\/tr>\n<tr>\n<td>\uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825<\/td>\n<td>\uc911\uad6d<\/td>\n<td>$5,000\u2013$8,500<\/td>\n<td>\uc218\ucd9c \uc911\uc2ec, IEC \ud14c\uc2a4\ud2b8, \ub9de\ucda4\ud615 \uc635\uc158<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>ABB, Siemens, Schneider Electric \ubc0f Hitachi Energy\uc640 \uac19\uc740 \uae00\ub85c\ubc8c \uae30\uc5c5\uc740 \ud6a8\uacfc\uc801\uc778 \uc2e0\ub8b0\uc131, \ud655\ub9bd\ub41c R&amp;D, \ub514\uc9c0\ud138 \ubaa8\ub2c8\ud130\ub9c1 \uc2dc\uc2a4\ud15c \ubc0f \uc11c\ube44\uc2a4 \ub124\ud2b8\uc6cc\ud06c\ub97c \uc81c\uacf5\ud558\uc5ec \uc774\ub7ec\ud55c \ubcf4\uc99d\uc5d0 \ub300\ud574 \uc720\ud2f8\ub9ac\ud2f0\uac00 \uc120\ud638\ud558\ub294 \ud504\ub9ac\ubbf8\uc5c4 \uac00\uaca9\uc778 2-2.5\ubc30\ub97c \uccad\uad6c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ud6a8\uc728\uc131 \uae30\uc900\uc774 \uc774\ub984\ub9cc\ud07c \uc911\uc694\ud558\uace0 \ub3c8\uc73c\ub85c \ud558\ub098\uc758 \uac00\uaca9\uc5d0 \ub450 \uac1c\uc758 \uc7a5\uce58\ub97c \uad6c\ub9e4\ud560 \uc218 \uc788\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \u2013 \uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825\uc740 \uc989\uc2dc \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ud30c\ud2b8\ub108\uc785\ub2c8\ub2e4. \uc774 \ud68c\uc0ac\ub294 5 kVA\uc5d0\uc11c 2,500 kVA\uae4c\uc9c0\uc758 \uc624\uc77c \uce68\uc9c0\ud615 \ubc30\uc804 \ubcc0\uc555\uae30\uc640 2,000 kVA\uae4c\uc9c0\uc758 \uc6a9\ub7c9\uc744 \uac00\uc9c4 \uac74\uc2dd \ubcc0\uc555\uae30\ub97c IEC 60076\uc5d0 \ub530\ub77c \uc81c\uc870\ud558\uace0 \uc815\uae30 \uc2dc\ud5d8 \uae30\ub85d\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc218\ube44\uc548\uc740 \ube44\uc815\uc9c8 \ucf54\uc5b4, \ub3c5\ud2b9\ud55c \ubca1\ud130 \uadf8\ub8f9 \ubc0f \ud0ed \ubc94\uc704, \uc2a4\ub9c8\ud2b8 \ubaa8\ub2c8\ud130\ub9c1 \uc635\uc158 \ubc0f ODM \uad6c\uc131\uc744 \uc81c\uacf5\ud558\uba70, \uc774\ub294 \uc804 \uc138\uacc4\ub85c \ubc30\uc1a1\ub420 \uc218 \uc788\uc73c\uba70 \ud544\uc694\uc2dc \ubc30\uc1a1 \uc804\uc5d0 \uc81c3\uc790 \uac80\uc0ac \ud68c\uc0ac\uc5d0 \uc758\ud574 \uac80\uc0ac\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10701\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/4-Core-Roles-of-Distribution-Transformers.webp\" alt=\"\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"buy\">\uad6c\ub9e4 \uc2dc \uba85\uc2dc\ud574\uc57c \ud560 \uc0ac\ud56d<\/h2>\n<p>\uc5b4\ub5a4 \uc7a5\uce58\ub97c \uc120\ud0dd\ud558\ub4e0, \ud558\ub098\uc758 \uc7a5\uce58\ub4e0 \uc5ec\ub7ec \uac1c\uc758 \uc7a5\uce58\ub4e0, \ub2e4\uc74c \uc815\ubcf4\ub97c \uc11c\uba74\uc73c\ub85c \uc81c\uacf5\ud574\uc57c \ud569\ub2c8\ub2e4:<\/p>\n<p>\ub0c9\uac01 \ubc0f \uc804\uc555: kVA \ub4f1\uae09\uc744 \uacb0\uc815\ud558\uace0, ONAN\uc774 \uc0ac\uc6a9\ub418\ub294\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624(\uacfc\ubd80\ud558 \uc2dc ONAF).<br \/>\n\uc804\uc555 \ubc0f \ud0ed: \uae30\ubcf8 \uc804\uc555\uc740 \ubb34\uc5c7\uc774\uba70, \ucd5c\ub300 \uc804\uc555 \uac15\ud558 \ube44\uc728(\u00b12\u00d72.5% \ub610\ub294 \u00b15%)\uc740 \uc5bc\ub9c8\uc785\ub2c8\uae4c?.<br \/>\n\ubca1\ud130 \uadf8\ub8f9: Dyn11, Yyn0, YNd11 \ub610\ub294 \uc811\uc9c0 \ucca0\ud559\uc5d0 \ub530\ub77c \ub2e4\ub978 \uac83.<br \/>\n\uc190\uc2e4\uc758 \uc0c1\ud55c: \ubb34\ubd80\ud558 \uc190\uc2e4\ub960 \ubc0f \uc791\uc5c5 \uc190\uc2e4\uc744 \uc815\uc758\ud558\uace0, \uc190\uc2e4 \ucd08\uacfc \uc2dc \ubc8c\uce59 \uc870\ud56d \ubc0f \uac00\ub2a5\ud55c \ubc8c\uce59\uc744 \uc791\uc131\ud558\uc2ed\uc2dc\uc624.<br \/>\n\ud45c\uc900 \ubc0f \uc2dc\ud5d8: IEC 60076\uc744 \ucc38\uc870\ud558\uace0 \uc815\uae30 \ud55c\uacc4 \uc778\uc99d\uc11c\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<br \/>\n\uc561\uc138\uc11c\ub9ac: \ud544\uc694\ud55c \uacbd\uc6b0 \ubd80\uc2f1(\uc138\ub77c\ubbf9 \ub610\ub294 \ud3f4\ub9ac\uba38), \ubcf4\uc874\uae30 \ub610\ub294 \ubc00\ud3d0 \ud0f1\ud06c, \ubc30\uc218 \ubc0f \ud0ed \ubc38\ube0c, \uc808\uc5f0 \uc7a5\uce58 \ub4f1\uc758 \uc635\uc158\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<br \/>\n\ubaa8\ub2c8\ud130\ub9c1 \uc694\uad6c \uc0ac\ud56d: \uad8c\uc120 \uc628\ub3c4 \ud45c\uc2dc\uae30, \uc624\uc77c \uc218\uc900, \ubd80\ubd84 \ubc29\uc804, \uac00\ub2a5\ud55c \ud1b5\uc2e0 \ud504\ub85c\ud1a0\ucf5c(IEC61850\/Modbus)\uc744 \uba85\uc2dc\ud558\uc2ed\uc2dc\uc624.<br \/>\nLogistics: determine standard in packing materials, details of lifting and transport, and obligatory check by the relevant inspection authority.<br \/>\nBe careful with tap ratio and vector group, since these items are most common in case of additional costs related to field corrections.<\/p>\n<h2 id=\"faq\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h3>What is the difference between a distribution transformer and a power transformer?<\/h3>\n<p>The size and purpose. The distribution transformers sizes range from 5 to 2,500 kVA and work on the principles of reducing voltage from the MV range (6.6-35 kV) to the operating voltage at the point of usage. The power transformers provide the option to interconnect the transmission systems with voltages that exceed the range of either 2,500 kVA or 2,500 kVA and above (e.g. 110\/35 kV, 220\/110 kV).<\/p>\n<h3>How long does a distribution transformer last?<\/h3>\n<p>The design life of oil-immersed devices can be between 25 and 35 years assuming they have been designed, protected, and maintained properly. The insulation durability is halved for approximately each 8 K over temperature above the winding rise threshold of 65 K. Practical fleet experience indicates that if devices operate at no more than 70% average load and are subjected to oil check every 2-3 years, they will achieve design life, and overloaded units in cities may die after 10-15 years.<\/p>\n<h3>Why are distribution transformer losses so important?<\/h3>\n<p>Since they operate continuously. An S7 generator with a rating of 630 kVA has annual iron losses of approximately 2,000 to 2,500 kWh compared to an amorphous-core generator, which costs $200 to $300 a year at the rate of $0.10 per kilowatt-hour over the span of 25 years and more. For thousands of generators, the result of this discrepancy is either meeting or failing to meet the target.<\/p>\n<h3>Should I buy oil-immersed or dry-type transformers?<\/h3>\n<p>Oil-filled equipment costs around 30 to 50 percent less compared to similar dry-type equipment, produces less noise, and proves more efficient for outdoor application. Dry-type or resin-filled equipment finds application in areas where the risk of fire is a concern such as hospitals, tunnels, to comply with the regulations, or indoor placements. If the installation site has no constraints with regard to fire and is outdoors, oil-filled equipment tends to be the rational choice from the economic perspective.<\/p>\n<h3>How much does a distribution transformer cost in 2026?<\/h3>\n<p>For oil-immersed units FOB from China: single-phase pole types run <strong>$350\u2013$1,500<\/strong> (5\u2013167 kVA); three-phase pole\/pad types run <strong>$1,500\u2013$12,000<\/strong> (15\u2013500 kVA); larger pad-mounted and substation units run <strong>$8,000\u2013$25,000<\/strong> (630\u20132,500 kVA). Dry-type units cost 30\u201350% more. Add 30\u201350% for landing, installation, and commissioning.<\/p>\n<h2 id=\"references\">\ucc38\uace0 \ubb38\ud5cc<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.iec.ch\/\" rel=\"nofollow noopener\" target=\"_blank\">IEC<\/a> \u2014 Publisher of IEC 60076, the core standard for distribution transformers.<\/li>\n<li><a href=\"https:\/\/www.iea.org\/\" rel=\"nofollow noopener\" target=\"_blank\">International Energy Agency (IEA)<\/a> \u2014 Data and analysis on distribution losses and transformer efficiency.<\/li>\n<li><a href=\"https:\/\/www.ieee.org\/\" rel=\"nofollow noopener\" target=\"_blank\">IEEE<\/a> \u2014 Source of IEEE C57.12 and C57.12.20 standards for the Americas.<\/li>\n<li><a href=\"https:\/\/www.nema.org\/\" rel=\"nofollow noopener\" target=\"_blank\">NEMA<\/a> \u2014 TP-1 efficiency standard for distribution transformers in North America.<\/li>\n<li><a href=\"https:\/\/www.energy.gov\/\" rel=\"nofollow noopener\" target=\"_blank\">\ubbf8\uad6d \uc5d0\ub108\uc9c0\ubd80<\/a> \u2014 Distribution transformer efficiency regulations and market data.<\/li>\n<li><a href=\"https:\/\/ec.europa.eu\/\" rel=\"nofollow noopener\" target=\"_blank\">European Commission<\/a> \u2014 Ecodesign regulation 548\/2014 and 2019\/1783 for transformers.<\/li>\n<li><a href=\"https:\/\/subian-electric.com\/ko\/\">\uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825<\/a> \u2014 Manufacturer of oil-immersed and dry-type distribution transformers.<\/li>\n<\/ul>\n<h2 id=\"conclusion\">\uacb0\ub860<\/h2>\n<ul>\n<li>The distribution transformers play a vital role in the electrical system&#8217;s overall functioning, and they also make final voltage changes while also doing earthing. As a result, they have become an active part of the smart electricity systems with solar energy, energy storage, and electric vehicle charging systems.\n<p>The loss rating, vector group, and the range of tap should be noted as their cost and performance depend upon them.<\/p>\n<p>The most cost-effective transformer available should be purchased since one recovered the costs of the lost power in 3-6 years after the purchase of the transformer.<\/p>\n<p>Budget $400-$25,000, depending on its type and ratings, plus the cost of installation and landing ranging from 30-50%.<\/li>\n<li>Whether you choose ABB, Siemens, Schneider, or a cost-competitive manufacturer like <strong>\uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825<\/strong>, insist on IEC 60076 test documentation and loss guarantees in writing.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>A young engineer in charge of planning in a public utility spends her time preparing for next year&#8217;s budget. This involves not merely connecting the new solar park of 40 MW capacity and getting new power connections to 3,000 households built on the perimeter of the city but also achieving the new regulatory requirement to [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":10700,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[77],"tags":[],"class_list":["post-10699","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/10699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/comments?post=10699"}],"version-history":[{"count":3,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/10699\/revisions"}],"predecessor-version":[{"id":11111,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/10699\/revisions\/11111"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media\/10700"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media?parent=10699"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/categories?post=10699"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/tags?post=10699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}