{"id":11619,"date":"2026-09-24T23:57:54","date_gmt":"2026-09-24T15:57:54","guid":{"rendered":"https:\/\/subian-electric.com\/?p=11619"},"modified":"2026-09-25T00:00:43","modified_gmt":"2026-09-24T16:00:43","slug":"45-kva-transformer-amps","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/ko\/blog\/45-kva-transformer-amps\/","title":{"rendered":"45 kVA \ubcc0\uc555\uae30 \uc554\ud398\uc5b4"},"content":{"rendered":"<p>45 kVA \ubcc0\uc555\uae30\ub294 \uc18c\uaddc\ubaa8 \uc0c1\uc5c5 \ubc0f \uacbd\uacf5\uc5c5 \ubd80\ubb38\uc5d0\uc11c \uac00\uc7a5 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ubcc0\uc555\uae30 \ud06c\uae30\uc77c \uac00\ub2a5\uc131\uc774 \ub192\uc9c0\ub9cc, \uc2e4\uc81c \uc804\ub958 \uc190\uc2e4 \ubb38\uc81c\ub85c \uc778\ud574 \ub9ce\uc740 \uc0ac\ub78c\ub4e4\uc774 \uc2e4\ud328\ud558\ub294 \uacf3\uc774\uae30\ub3c4 \ud569\ub2c8\ub2e4. \uc774\uc5d0 \ub300\ud55c \ub2f5\uc740 \ubcc0\uc555\uae30\uc758 \uc5b4\ub5a4 \ubd80\ubd84\uc744 \uc0b4\ud3b4\ubcf4\ub290\ub0d0, \uc5b4\ub5a4 \uc804\uc555\uc774 \uc0ac\uc6a9\ub418\ub290\ub0d0, \uc5b4\ub5a4 \uc5f0\uacb0\uc774 \uc774\ub8e8\uc5b4\uc9c0\ub290\ub0d0\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc758 \uc21c\uc11c\uc5d0 \ub530\ub77c \uc774\ub97c \uc124\uba85\ud558\uae30 \uc704\ud574 \uba3c\uc800 \uacf5\uc2dd\uc744 \uc81c\uc2dc\ud558\uace0, \uadf8 \ub2e4\uc74c\uc5d0\ub294 480\ubcfc\ud2b8\uc5d0\uc11c 208\ubcfc\ud2b8\ub85c \ub0b4\ub824\uac00\ub294 \uc644\uc804\ud55c \uc804\ub958 \ud45c\uc640 \uae30\ud0c0 \ubd80\uc18d\ud488\uc744 \ub530\ub974\uba70, \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uad6c\ud604 \uc2dc\uc758 \uc77c\ubc18\uc801\uc778 \uc2e4\uc218\uc5d0 \ub300\ud574 \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<blockquote><p>45 kVA \ubcc0\uc555\uae30\uac00 \uc0bc\uc0c1 \uc2dc\uc2a4\ud15c\uc5d0 \uc5f0\uacb0\ub418\uba74 480 V\uc5d0\uc11c 54.1 A, 208 V\uc5d0\uc11c 124.9 A, 240 V\uc5d0\uc11c 108.3 A, 600 V\uc5d0\uc11c 43.3 A\uc758 \uc804\ub958\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub2e8\uc0c1 \ud68c\ub85c\uc5d0\uc11c 240 V\uc758 \uc804\uc555\uc73c\ub85c 187.5 A\uc758 \uc804\ub958\ub97c \uacf5\uae09\ud558\uba70 (120 V\uc5d0\uc11c\ub294 375 A\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4). \ubaa8\ub4e0 \uacb0\uacfc\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uacf5\uc2dd\uc744 \ud1b5\ud574 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4: \uc804\ub958(A) = kVA x 1,000 \/ L-L V (\uade0\ud615 \uc7a1\ud78c \uc0bc\uc0c1 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0), \uc804\ub958(A) = kVA x 1,000 \/ V (\ub2e8\uc0c1 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0). \ub2e4\uc2dc \ub9d0\ud574, 480-208 V \uc5f0\uacb0\uc774 \uc788\ub294 \uac15\ud558 \ubcc0\uc555\uae30\ub97c \uc0ac\uc6a9\ud558\uba74, 1\ucc28 \uc804\uc555\uc5d0\uc11c 54.1 A\uc758 \uc804\ub958\uac00 \uc0dd\uc131\ub418\uace0, 2\ucc28 \uc804\uc555\uc5d0\uc11c\ub294 124.9 A\uc758 \uc804\ub958\uac00 \uc0dd\uc131\ub429\ub2c8\ub2e4. \uc989, \ub0ae\uc740 \uc804\uc555\uc77c\uc218\ub85d \ud56d\uc0c1 \ub354 \ub192\uc740 \uc804\ub958\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/p><\/blockquote>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11620\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/09\/45-kVA-Transformer-Amps.webp\" alt=\"45 kVA \ubcc0\uc555\uae30 \uc554\ud398\uc5b4\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>\ub2f9\uc2e0\uc774 \ud544\uc694\ud55c \uc720\uc77c\ud55c \uacf5\uc2dd\uacfc \uadf8 \uc548\uc5d0 \uc228\uaca8\uc9c4 \uac00\uc815<\/h2>\n<p>\uade0\ud615 \uc7a1\ud78c \uc0bc\uc0c1 \ubd80\ud558\uc5d0\uc11c \uc120 \uc804\ub958\ub294 \ub2e4\uc74c \uacf5\uc2dd\uc73c\ub85c \uc8fc\uc5b4\uc9d1\ub2c8\ub2e4: I = kVA \u00d7 1,000 \u00f7 (\u221a3 \u00d7 VLL), \uc5ec\uae30\uc11c \u221a3 = 1.732\uc785\ub2c8\ub2e4.<\/p>\n<p>\ub2e8\uc0c1 \ubd80\ud558\uc758 \uacbd\uc6b0 \u221a3\ub294 \ud544\uc694\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4: I = kVA \u00d7 1,000 \u00f7 V.<\/p>\n<p>\uc5ec\uae30\uc5d0\ub294 \ub450 \uac00\uc9c0 \uac00\uc815\uc774 \uc791\uc6a9\ud558\uba70, \ub450 \uac00\uc9c0 \ubaa8\ub450 \uc62c\ubc14\ub97c \ub54c\ub9cc \uc758\ubbf8\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uccab\uc9f8, \uacf5\uc2dd\uc5d0\uc11c \uc804\uc555\uc740 \uc120\uac04 \uc804\uc555\uc774\uc5b4\uc57c \ud55c\ub2e4\ub294 \uc810\uc744 \uae30\uc5b5\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4 \u2014 \uc608\ub97c \ub4e4\uc5b4, 480Y\/277\uc758 \uc120-\uc911\uc131 \uc804\uc555\uc778 277 V\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc740 \uacc4\uc0b0\uc5d0\uc11c \uac00\uc7a5 \ud754\ud55c \uc2e4\uc218 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \ub458\uc9f8, kVA\ub294 \uac89\ubcf4\uae30 \uc804\ub825\uc744 \ub098\ud0c0\ub0b4\ubbc0\ub85c \uc804\ub825 \uacc4\uc218\ub97c \uace0\ub824\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc7a5\ube44\uac00 kVA\ub97c \uc554\ud398\uc5b4\ub85c \ubcc0\ud658\ud560 \ub54c \uc804\ub825 \uacc4\uc218\ub97c \uc694\uad6c\ud55c\ub2e4\uba74, \uc774\ub294 \ubd80\uc801\uc808\ud55c \uc791\uc5c5\uc744 \uc218\ud589\ud558\uace0 \uc788\ub294 \uac83\uc785\ub2c8\ub2e4. \uc804\ub825 \uacc4\uc218\ub294 kW(\uc2e4\uc81c \uc804\ub825)\ub97c \uc554\ud398\uc5b4\ub85c \ubcc0\ud658\ud560 \ub54c\ub9cc \uc801\uc6a9\ub418\uba70, \uc774\ub294 \uc0ac\ub78c\ub4e4\uc774 \uc774\ub984\ud45c\uc640 \uacf5\uacfc\uae08\uc744 \ube44\uad50\ud560 \ub54c \ud63c\ub780\uc744 \uc77c\uc73c\ud0a4\ub294 kW\uc640 kVA\uc758 \uad6c\ubd84\uc785\ub2c8\ub2e4 \u2014 \uc800\ud56d \ubd80\ud558 \uc774\uc678\uc758 \ubaa8\ub4e0 \uac83\uc5d0 \ub300\ud574 \ub3d9\uc77c\ud55c \uad6c\ubd84\uc774 \uc801\uc6a9\ub429\ub2c8\ub2e4. <a href=\"\/ko\/blog\/transformer-sizing-and-load-calculations\/\">\ubcc0\uc555\uae30 \ud06c\uae30 \uc870\uc815 \ubc0f \ubd80\ud558 \uacc4\uc0b0<\/a> \uc800\ud56d \ubd80\ud558 \uc774\uc678\uc758 \ubaa8\ub4e0 \uac83\uc5d0 \ub300\ud574.<\/p>\n<h2>\uc815\uaca9 \uc804\ub958 \ud45c: \ud45c\uc900 \uc804\uc555\uc5d0\uc11c 45 kVA<\/h2>\n<p>\uc5ec\uae30 \uc804\uccb4 \uc774\ud574\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc804\ub958\ub294 \uc774\ub984\ud45c \uac12\uc5d0 \uae30\ubc18\ud558\uba70, \uc2e4\uc81c \uce21\uc815\uc774 \uc544\ub2cc \uade0\ud615 \uc7a1\ud78c \ubd80\ud558\ub97c \uac00\uc815\ud569\ub2c8\ub2e4.<\/p>\n<table>\n<tbody>\n<tr>\n<th>\uc2dc\uc2a4\ud15c \uc804\uc555 \ubc0f \uc704\uc0c1<\/th>\n<th>\uc815\uaca9 \ubd80\ud558 \uc804\ub958<\/th>\n<th>\ub2f9\uc2e0\uc774 \uadf8\uac83\uc744 \ubcf4\ub294 \uacf3<\/th>\n<\/tr>\n<tr>\n<td>480 V, 3\uc0c1<\/td>\n<td>1 A<\/td>\n<td>480\u2013208 V \uac15\ud558 \ubcc0\uc555\uae30\uc758 1\ucc28 \uce21; \uc0b0\uc5c5 \ubc30\uc804<\/td>\n<\/tr>\n<tr>\n<td>400 V, 3\uc0c1<\/td>\n<td>0 A<\/td>\n<td>IEC \ub124\ud2b8\uc6cc\ud06c, \uc218\ucd9c \uc7a5\ube44<\/td>\n<\/tr>\n<tr>\n<td>380 V, 3\uc0c1<\/td>\n<td>4 A<\/td>\n<td>\uad6c\ud615 IEC \ub124\ud2b8\uc6cc\ud06c<\/td>\n<\/tr>\n<tr>\n<td>600 V, 3\uc0c1<\/td>\n<td>3 A<\/td>\n<td>\uce90\ub098\ub2e4 \ubc0f \uc77c\ubd80 \uc0b0\uc5c5 \uc2dc\uc2a4\ud15c<\/td>\n<\/tr>\n<tr>\n<td>240 V, 3\uc0c1<\/td>\n<td>3 A<\/td>\n<td>\ub378\ud0c0 \uc2dc\uc2a4\ud15c, \uc18c\uaddc\ubaa8 \uc0c1\uc5c5<\/td>\n<\/tr>\n<tr>\n<td>208 V, 3\uc0c1<\/td>\n<td>9 A<\/td>\n<td>480\u2013208 \ub2e8\uacc4 \uac10\uc18c\uc758 2\ucc28; \uc0c1\uc5c5\uc6a9 \ud328\ub110<\/td>\n<\/tr>\n<tr>\n<td>240 V, 1\uc0c1<\/td>\n<td>5 A<\/td>\n<td>\ub2e8\uc0c1 \uc11c\ube44\uc2a4, \uc77c\ubd80 \uacbd\ub7c9 \uc0c1\uc5c5\uc6a9<\/td>\n<\/tr>\n<tr>\n<td>120 V, 1\uc0c1<\/td>\n<td>0 A<\/td>\n<td>\uc774 \ub4f1\uae09\uc5d0\uc11c\ub294 \uc2e4\uc6a9\uc801\uc774\uc9c0 \uc54a\uc740 \uacbd\uc6b0\uac00 \ub9ce\uc74c; \ube44\uad50\ub97c \uc704\ud574 \ud45c\uc2dc\ub428<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc774 \ud45c\ub294 \uc77c\ub828\uc758 \uc22b\uc790\uac00 \uc544\ub2cc \ube44\uc728 \ubb38\uc81c\ub85c \ub2e4\ub8e8\uc5b4\uc838\uc57c \ud569\ub2c8\ub2e4. \uc804\uc555\uc744 \uc808\ubc18\uc73c\ub85c \uc904\uc774\uba74 \uc804\ub958\uac00 \uc790\ub3d9\uc73c\ub85c \ub450 \ubc30\ub85c \uc99d\uac00\ud558\uc5ec 120 V \uc5f4\uc774 \ub450\ub835\uac8c \ubcf4\uc774\uac8c \ub9cc\ub4ed\ub2c8\ub2e4. 45 kVA\ub294 \uadf8\ub7ec\ud55c \uc804\uc555\uc5d0\uc11c \ubd84\ubc30\ub420 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \ub610\ud55c \ub2e8\uc0c1\uc5d0\uc11c \uc0bc\uc0c1\uc73c\ub85c \uc774\ub3d9\ud560 \ub54c \uc804\ub958\ub294 1.732\ub85c \ub098\ub204\uc5b4\uc9c0\ubbc0\ub85c 45 kVA \uc0bc\uc0c1 \ubcc0\uc555\uae30\uac00 \ub2e8\uc0c1 \ubcc0\uc555\uae30\ubcf4\ub2e4 \uac01 \ub2e4\ub9ac\ub2f9 \ud6e8\uc52c \uc791\uc544 \ubcf4\uc785\ub2c8\ub2e4.<\/p>\n<h2>45 kVA 480-\ub300-208 \ucf00\uc774\uc2a4, \ub098\ub780\ud788<\/h2>\n<p>\uc774\uac83\uc740 \ub300\ubd80\ubd84\uc758 \uc0ac\ub78c\ub4e4\uc774 \uc2e4\uc81c\ub85c \uc9c8\ubb38\ud558\ub294 \uad6c\uc131\uc73c\ub85c, \ubcc4\ub3c4\uc758 \ub2e4\ub8e8\uae30\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<table>\n<tbody>\n<tr>\n<th>\ub9e4\uac1c\ubcc0\uc218<\/th>\n<th>\uae30\ubcf8(480 V, 3\uc0c1)<\/th>\n<th>2\ucc28(208Y\/120 V, 3\uc0c1)<\/th>\n<\/tr>\n<tr>\n<td>\uc815\uaca9 \uc6a9\ub7c9<\/td>\n<td>45 kVA<\/td>\n<td>45 kVA<\/td>\n<\/tr>\n<tr>\n<td>\uc815\uaca9 \uc804\ub958<\/td>\n<td>1 A<\/td>\n<td>9 A<\/td>\n<\/tr>\n<tr>\n<td>\uc5f0\uc18d \ubd80\ud558 \uae30\uc900(125%)<\/td>\n<td>6 A<\/td>\n<td>1 A<\/td>\n<\/tr>\n<tr>\n<td>\uc77c\ubc18\uc801\uc778 \ubcf4\ud638<\/td>\n<td>70 A<\/td>\n<td>175 A<\/td>\n<\/tr>\n<tr>\n<td>\uc77c\ubc18\uc801\uc778 \uad6c\ub9ac \ub3c4\uccb4(75\u00b0C \uc885\ub2e8)<\/td>\n<td>4 AWG<\/td>\n<td>2\/0 AWG<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uacb0\uacfc\uc801\uc73c\ub85c \ub450 \uac00\uc9c0 \uacb0\uacfc\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uccab\uc9f8, 2\ucc28 \uce21\uc774 \ub3c4\uccb4 \ube44\uc6a9\uc5d0 \ub354 \ud070 \uc601\ud5a5\uc744 \ubbf8\uce58\uac8c \ub418\uba70, \ub300\ubd80\ubd84\uc758 45 kVA\uac00 \ub0ae\uc740 \uc804\uc555\uc744 \ud1b5\ud574 \ud750\ub974\uae30 \ub54c\ubb38\uc5d0 \uc804\ub958 \uc218\uc900\uc774 2.3\ubc30 \uc99d\uac00\ud558\uace0, \ub530\ub77c\uc11c \uc640\uc774\uc5b4\uc5d0 \ud544\uc694\ud55c \uad6c\ub9ac \uc591\uc774 \uc99d\uac00\ud574\uc57c \ud569\ub2c8\ub2e4. \ub610\ud55c, 1\ucc28 \ubc0f 2\ucc28 \uce21\uc758 \ubcf4\ud638 \ub4f1\uae09\uc740 \ub3d9\uc77c\ud55c \uc7a5\uce58\uc758 \ub450 \uac00\uc9c0 \ubcc0\ud615\uc774 \uc544\ub2c8\ub77c \ub450 \uac00\uc9c0 \ub2e4\ub978 \ub9e4\uac1c\ubcc0\uc218\uc5d0 \ub530\ub77c \uc218\ud589\ub41c \ub450 \uac00\uc9c0 \ub2e4\ub978 \uacc4\uc0b0\uc758 \uacb0\uacfc\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc774 \uacbd\uc6b0 45 kVA \uc720\ub2db\uc740 \ubd80\ud558 \uc606\uc758 \ubc29 \uc548\uc5d0 \uc704\uce58\ud55c \ub4dc\ub77c\uc774 \ud0c0\uc785 \ubcc0\uc555\uae30\uc77c \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4. \ud2b9\uc815 \uc124\uce58\ub97c \uc704\ud55c \uac74\ucd95 \uc720\ud615\uc744 \ube44\uad50\ud558\ub294 \uacbd\uc6b0, \uc778\ud074\ub85c\uc800, \ub0c9\uac01, \uc808\uc5f0 \ub4f1\uae09 \ubc0f \uac01 \uc720\ud615\uc774 \ubc95\uc801\uc73c\ub85c \uc124\uce58\ub420 \uc218 \uc788\ub294 \uc704\uce58\uc5d0 \ub300\ud55c \uc2e4\uc9c8\uc801\uc778 \ucc28\uc774\ub294 <a href=\"\/ko\/product\/dry-type-transformer\/\">\ub4dc\ub77c\uc774 \ud0c0\uc785 \ubcc0\uc555\uae30 \uc0ac\uc591 \ubc94\uc704\uc5d0 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/a> \u2014 \uadf8\ub9ac\uace0 \uc120\ud0dd\uc740 \uc2e4\uc81c\ub85c \uacf5\uac04\uc758 \uba74\uc801, \ubc29\uc5d0 \ubc29\ucd9c\ub418\ub294 \uc5f4 \ubd80\ud558 \ubc0f \uc720\uc9c0\ubcf4\uc218 \uccb4\uacc4\ub97c \ubcc0\uacbd\ud569\ub2c8\ub2e4.<\/p>\n<h2>\ub3c4\uccb4 \ud06c\uae30: 54.1 A\uac00 \uc2e4\uc81c \uc640\uc774\uc5b4\uac00 \ub418\ub294 \uacf3<\/h2>\n<p>\uc815\uaca9 \ubd80\ud558 \uc804\ub958\uac00 \uc2dc\uc791\uc810\uc774\uc9c0\ub9cc, \ub2f5\uc740 \uc544\ub2d9\ub2c8\ub2e4. \ubcc0\uc555\uae30 \ud68c\ub85c\uc5d0 \uc120\ud0dd\ub41c \ub3c4\uccb4 \ud06c\uae30\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 1\ucc28 \ubc0f 2\ucc28 \ub3c4\uccb4 \ubaa8\ub450\uc5d0 \ub300\ud574 125%\ubcf4\ub2e4 \uc791\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774 \ub2e8\uacc4 \uc774\ud6c4, \ub3c4\uccb4 \ud06c\uae30\ub294 \uc2e4\uc81c \uc885\ub2e8 \uc628\ub3c4\uc5d0\uc11c \ub3c4\uccb4\uc758 \uc804\ub958 \uc6a9\ub7c9 \ub4f1\uae09\uc744 \ucda9\uc871\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<ul>\n<li>\uc870\uc0ac \uc911\uc778 \uce21\uc758 \uc815\uaca9 \ubd80\ud558 \uc804\ub958\ub85c \uc2dc\uc791\ud569\ub2c8\ub2e4(480-208 \uc720\ub2db\uc758 \uacbd\uc6b0 1\ucc28 54.1 A \ubc0f 2\ucc28 124.9 A).<\/li>\n<li>125% \uacc4\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec 67.6 A \ubc0f 156.1 A\ub97c \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/li>\n<li>\ud574\ub2f9 \uc804\ub958 \uc6a9\ub7c9 \uc5f4\uc5d0\uc11c \ub3c4\uccb4\ub97c \uc120\ud0dd\ud569\ub2c8\ub2e4. \uac00\ub2a5\ud558\uba74 75\u00b0C\ub97c \uc120\ud0dd\ud558\ub418, \uc885\ub2e8\uc774 90\u00b0C\uc5d0\uc11c \uc774\ub8e8\uc5b4\uc9c8 \uc218 \uc788\ub294 \uacbd\uc6b0\ub294 \uc81c\uc678\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc0ac\uc6a9 \uc870\uac74\uc5d0 \ub530\ub77c \ud544\uc694\ud55c \uc870\uc815\uc744 \ud569\ub2c8\ub2e4. 30 \u00b0C \uc774\uc0c1\uc758 \uae30\uc628\uacfc \ub808\uc774\uc2a4\uc6e8\uc774\uc5d0 3\uac1c \uc774\uc0c1\uc758 \uc804\ub3c4\uc131 \uc640\uc774\uc5b4\uac00 \uc788\ub294 \uacbd\uc6b0 \uc720\ud6a8 \uc804\ub958 \uc6a9\ub7c9\uc774 \uac10\uc18c\ud558\ubbc0\ub85c, \uc885\uc774\uc0c1\uc73c\ub85c \uc801\uc808\ud574 \ubcf4\uc774\ub294 \ub3c4\uccb4\uac00 \uc2e4\uc81c\ub85c\ub294 \ubd80\uc871\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\uae34 \uac70\ub9ac\uc758 \uc804\uc555 \uac15\ud558\ub97c \uc608\uc0c1\ud558\uc5ec \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4. 125% \uc804\ub958 \uc6a9\ub7c9 \uacc4\uc218\ub294 \ub3c4\uccb4\ub97c \ubcf4\ud638\ud558\uc9c0\ub9cc, \ubd80\ud558\uac00 \ucda9\ubd84\ud55c \uc804\uc555\uc744 \ubc1b\uc744 \uac83\uc774\ub77c\ub294 \ubcf4\uc7a5\uc740 \uc81c\uacf5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc774\ub7ec\ud55c \ub450 \uac00\uc9c0 \uc804\ub958 \uac10\uc18c \uacc4\uc218\ub294 \ub204\uad70\uac00\uac00 \uc124\uce58\uac00 \uc544\ub2cc \ucc28\ud2b8\uc5d0\uc11c \ud06c\uae30\ub97c \uc870\uc815\ud560 \ub54c \uac74\ub108\ub6f0\ub294 \ubc14\ub85c \uadf8\ub7f0 \uac83\uc785\ub2c8\ub2e4. \ub192\uc740 \uc8fc\ubcc0 \uc628\ub3c4\ub294 \uac00\uc815\uc801\uc774\uc9c0\ub3c4 \uc54a\uc2b5\ub2c8\ub2e4 \u2014 \uacf5\uc7a5 \ub0b4 \ubcc0\uc555\uae30 \ud074\ub85c\uc82f\uc740 \uc885\uc885 \uac74\ubb3c\uc5d0\uc11c \uac00\uc7a5 \ub354\uc6b4 \uacf5\uac04\uc785\ub2c8\ub2e4.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11621\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/09\/Conductor-sizing-where-54.1-A-becomes-a-real-wire.webp\" alt=\"\ub3c4\uccb4 \ud06c\uae30: 54.1 A\uac00 \uc2e4\uc81c \uc640\uc774\uc5b4\uac00 \ub418\ub294 \uacf3\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>\ubcc0\uc555\uae30 \uaddc\uce59\uc5d0 \ub530\ub978 \ubcf4\ud638 \ud06c\uae30<\/h2>\n<p>\ubcc0\uc555\uae30\ub97c \uacfc\uc804\ub958\ub85c\ubd80\ud130 \ubcf4\ud638\ud558\ub294 \uacfc\uc815\uc740 \uc790\uccb4 \uc0ac\uc591\uc5d0 \ub530\ub77c \uc791\ub3d9\ud569\ub2c8\ub2e4. 9 A \uc774\uc0c1\uc758 1\ucc28 \uc804\ub958\ub97c \uac00\uc9c4 \ubcc0\uc555\uae30\uc5d0 \ub300\ud55c \uc77c\ubc18 \uaddc\uce59\uc740 \uc81c\uc5b4 \uc218\uc900\uc774 1\ucc28 \uc815\uaca9 \uc804\ub958\uc758 125%\ub97c \ucd08\uacfc\ud574\uc11c\ub294 \uc548 \ub418\uba70, 2\ucc28 \ubcf4\ud638\ub294 \uc815\uaca9 2\ucc28 \uc804\ub958\uc758 125%\ub97c \ucd08\uacfc\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4 \u2014 15A, 20A, 25A, 30A, 35A, 40A, 45A, 50A, 60A, 70A, 80A, 90A, 100A, 110A, 125A, 150A, 175A, 200A \ub4f1\uacfc \uac19\uc740 \ub2e4\uc591\ud55c \ud45c\uc900 \ud06c\uae30\ub97c \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>480 V\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 45 kVA \ubcc0\uc555\uae30\uc758 \uacbd\uc6b0, \uacc4\uc0b0\ub41c \uac12\uc740 \uc57d 67.6 A\ub97c \uc81c\uacf5\ud558\uba70, \uc774\ub294 70 A \ubcc0\uc555\uae30\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. 208 V \uc218\uc900\uc744 \ud3c9\uac00\ud560 \ub54c, \uc6b0\ub9ac\ub294 156.1 A\uc758 \uac12\uc744 \uc5bb\uc73c\uba70, \uc774\ub294 175A\ub97c \uc0ac\uc6a9\ud558\uac8c \ub429\ub2c8\ub2e4. \uacc4\uc0b0\ub41c \uac12\uc774 \uc694\uad6c\ub418\ub294 \uac12\ubcf4\ub2e4 150 A \ub0ae\uc740 \uacbd\uc6b0, \uc774\ub294 \uc694\uad6c\ub418\ub294 \uc22b\uc790\ub97c \ucd08\uacfc\ud558\uc9c0 \uc54a\ub294 \ub2e4\uc74c \ud06c\uae30\uc758 \ubcc0\uc555\uae30\ub97c \uc0ac\uc6a9\ud560 \ub54c\ub9cc \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc774 \uacbd\uc6b0, \uc6b0\ub9ac\ub294 \uc774 \uc7a5\uce58\uc5d0 \ub300\ud55c \ucc45\uc784 \uc788\ub294 \ub2f9\uad6d\uacfc \uc0c1\ub2f4\ud558\uace0 \uadf8\ub4e4\uc758 \uc81c\uc548\uc744 \uc774\ud589\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p>\ub610 \ub2e4\ub978 \uc694\uad6c \uc0ac\ud56d\uc740 \uc7a5\uce58\uac00 \uc5f0\uacb0 \uc9c0\uc810\uc5d0\uc11c\uc758 \uace0\uc7a5 \uc804\ub958 \uc218\uc900\uc744 \uacac\ub51c \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. 45 kVA\uc758 \uc18c\ud615 \ubcc0\uc555\uae30\uc758 \uacbd\uc6b0, \uc774\ub294 2\ucc28 \uc5f0\uacb0\uc5d0\ub294 \ubb38\uc81c\uac00 \ub418\uc9c0 \uc54a\uc9c0\ub9cc, \uc11c\ube44\uc2a4\uc758 \uac15\uc9c1\uc131\uc73c\ub85c \uc778\ud574 1\ucc28 \uc5f0\uacb0\uc5d0\ub294 \ub9ce\uc740 \uc5b4\ub824\uc6c0\uc744 \ucd08\ub798\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucc28\ub2e8\uae30\uac00 \ucda9\ubd84\ud55c \ucc28\ub2e8 \uc815\uaca9\uc744 \uac00\uc9c0\uc9c0 \uc54a\ub294 \uacbd\uc6b0, \uc774\ub294 \uc758\ub3c4\ud55c \ub300\ub85c \uc791\ub3d9\ud558\uc9c0 \uc54a\uc74c\uc744 \uc758\ubbf8\ud558\uba70, \uc774\ub294 \uace0\uc7a5\uc774 \ubc1c\uc0dd\ud560 \uacbd\uc6b0 \uc0ac\uace0\ub97c \uc544\ud06c \uc0ac\uac74\uc73c\ub85c \uc804\ud658\ud560 \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ub3cc\uc785 \uc804\ub958: \ucc28\ub2e8\uae30\uac00 54.1 A\uc758 10\ubc30\ub97c \uac10\uc9c0\ud558\ub294 \uc774\uc720<\/h2>\n<p>\ubcc0\uc555\uae30\ub97c \uac00\ub3d9\ud558\uba74 \ucd08\uae30 \uba87 \uc0ac\uc774\ud074 \ub3d9\uc548 \ucf54\uc5b4\uac00 \ud3ec\ud654 \uc0c1\ud0dc\uc5d0 \ub4e4\uc5b4\uac11\ub2c8\ub2e4. \ud3ec\ud654 \uc218\uc900\uc740 \uc815\uaca9 \uc804\ub958\uc758 8\ubc30\uc5d0\uc11c 12\ubc30 \uc0ac\uc774\uc758 \uc790\ud654 \ub3cc\uc785\uc744 \ucd08\ub798\ud560 \uc218 \uc788\uc73c\uba70, \uc774\ub294 \uc77c\ubd80 \ubcc0\uc555\uae30 \uc124\uacc4\uc5d0\uc11c \uadf8 \uc218\uc900\uc744 \ucd08\uacfc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc790\ud654 \ub3cc\uc785\uc740 \uba87 \uc0ac\uc774\ud074\uc758 \uc791\ub3d9 \ud6c4 \uba87 \ucd08 \ub3d9\uc548 \uac10\uc18c\ud569\ub2c8\ub2e4. \uc774\ub294 \uc815\uc0c1\uc801\uc778 \ud604\uc0c1\uc774\uba70, \uacb0\ud568\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n<p>\uc774\ub294 \uc2e4\uc6a9\uc801\uc778 \uc774\uc720\ub85c \uc911\uc694\ud569\ub2c8\ub2e4. \uccab\uc9f8, \uc774\ub294 \uc800\uc804\ub958 \uc0c1\ud0dc\uc5d0\uc11c \uc120\ud0dd\ub41c \uc5f4\uc790\uae30 \uc7a5\uce58\ub85c \uc778\ud574 \ubc1c\uc0dd\ud558\ub294 \ubd88\ud544\uc694\ud55c \ud2b8\ub9bd\uc744 \uc124\uba85\ud558\ub294 \ub370 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ub458\uc9f8, \uc774\ub294 \uac1c\uc778\uc774 \ubd88\ud544\uc694\ud55c \ud2b8\ub9bd\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \ubd84\uae30 \ubcf4\ud638 \uc7a5\uce58\ub97c \uc5c5\uc0ac\uc774\uc988\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4\ub294 \uc0ac\uc2e4\ub85c \uc774\uc5b4\uc9c0\uba70, \ub300\uc2e0 \uc790\ud654 \ub3cc\uc785\uc744 \uacac\ub514\uba74\uc11c \uc791\ub3d9 \uc911 \ud68c\ub85c\ub97c \uacc4\uc18d \ubcf4\ud638\ud560 \uc218 \uc788\ub294 \ud2b9\uc815 \uc790\uc131 \ub610\ub294 \uc21c\uac04\uc801\uc778 \ud2b9\uc131\uc744 \uac00\uc9c4 \uc7a5\uce58\ub97c \uc120\ud0dd\ud558\ub294 \uac83\uc774 \uac00\uc7a5 \uc88b\uc2b5\ub2c8\ub2e4. \uc774 \uce21\uba74\uc5d0\uc11c \uac00\uc7a5 \ud754\ud55c \uc2e4\uc218 \uc911 \ud558\ub098\ub294 \uacfc\ub3c4\ud558\uac8c \ud070 \ucc28\ub2e8\uae30\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \ubcc0\uc555\uae30\ub97c \uac00\ub3d9\ud55c \ud6c4 200\ubc00\ub9ac\ucd08 \uc774\uc0c1 \uc9c0\ub098\uc11c \ud544\uc694\ud55c \uc704\uce58\uc5d0\uc11c \ubcf4\ud638\ub97c \ubc97\uc5b4\ub098\uac8c \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>80% \uaddc\uce59\uacfc \uadf8\uac83\uc774 \uc2e4\uc81c\ub85c \uc124\uba85\ud558\ub294 \uac83<\/h2>\n<p>\u201c\ubcc0\uc555\uae30\ub97c \uc815\uaca9 \ubd80\ud558\uc758 8%\ub85c \uc791\ub3d9\ud558\ub3c4\ub85d \ud558\uc2ed\uc2dc\uc624\u201d\ub77c\ub294 \uc9c4\uc220\uc740 \uc885\uc885 \uc77c\uc885\uc758 \uaddc\uce59\uc73c\ub85c \uac04\uc8fc\ub429\ub2c8\ub2e4. \uc0ac\uc2e4 \uc774 \uaddc\uce59\uc740 \uc5f0\uc18d \ubd80\ud558 \uaddc\uce59\uc73c\ub85c, 3\uc2dc\uac04 \uc774\uc0c1 \uc791\ub3d9\ud560 \uacbd\uc6b0 \ubd80\ud558\ub97c \uc5f0\uc18d\uc73c\ub85c \uac04\uc8fc\ud560 \uc218 \uc788\ub2e4\ub294 \uc815\ubcf4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubd80\ud558\ub294 125%\ub85c \uacf1\ud574\uc9d1\ub2c8\ub2e4. \uc774 \ube44\uc728\uc740 \ubcc0\uc555\uae30\uac00 \uc9c0\uc18d\uc801\uc73c\ub85c \uc81c\uacf5\ud560 \uc218 \uc788\ub294 80% \ubd80\ud558\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc608\ub97c \ub4e4\uc5b4 45 kVA \ubcc0\uc555\uae30\ub97c \uc0ac\uc6a9\ud558\uba74, 80%\ub294 \uc57d 100 A\uc758 \uc804\uc555\uc5d0\uc11c 36 kVA\uc758 \uc9c0\uc18d \ubd80\ud558 \uac12\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uac74\uc2dd \ubcc0\uc555\uae30\ub97c \ub728\uac70\uc6b4 \uc804\uae30\uc2e4\uc5d0\uc11c \uc791\uc5c5\ud560 \ub54c\ub294 \uc774 \uae30\uc900\ubcf4\ub2e4 \ud6e8\uc52c \ub0ae\uc740 \uac12\uc744 \uc720\uc9c0\ud558\ub294 \uac83\uc774 \ud56d\uc0c1 \ub354 \uc88b\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc801\uc808\ud55c \uc628\ub3c4 \uc870\uac74\uc744 \uc720\uc9c0\ud558\uace0 \uc808\uc5f0\uccb4\uc758 \ube60\ub978 \ub178\ud654\ub97c \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n<h2>\ub3c4\uccb4\ub97c \uc120\ud0dd\ud558\uae30 \uc804\uc5d0 \uc774\ub984\ud45c\ub97c \uc77d\uae30<\/h2>\n<p>\ud604\uc7ac\ub294 \uc774\ub984\ud45c\uc758 \ub2e8\uc77c \ud589\ub9cc\uc744 \ucc38\uc870\ud558\uba70, \ub098\uba38\uc9c0 \ud589\uc740 \ub0b4\uc6a9\uc744 \ubcc0\uacbd\ud569\ub2c8\ub2e4.<\/p>\n<table>\n<tbody>\n<tr>\n<th>\uc774\ub984\ud45c \ud56d\ubaa9<\/th>\n<th>\uc65c \ub2f9\uc2e0\uc758 \uacb0\uc815\uc744 \ubcc0\uacbd\ud558\ub294\uac00<\/th>\n<\/tr>\n<tr>\n<td>kVA \uc815\uaca9<\/td>\n<td>\uc591\ucabd\uc5d0\uc11c \uc815\uaca9 \uc804\ub958\ub97c \uc124\uc815\ud569\ub2c8\ub2e4; 45 kVA\ub294 \ubd81\ubbf8 \uc2dc\ub9ac\uc988\uc758 \ud45c\uc900 \ud06c\uae30\uc785\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>\ud0ed\uc774 \uc788\ub294 1\ucc28 \ubc0f 2\ucc28 \uc804\uc555<\/td>\n<td>\uc2e4\uc81c \ubcc0\ud658 \ube44\uc728\uacfc \uace0\uc804\uc555 \ub610\ub294 \uc800\uc804\uc555 \uacf5\uae09\uc744 \uc704\ud55c \uc870\uc815 \uac00\ub2a5\uc131\uc744 \uacb0\uc815\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>\uad8c\uc120 \uc7ac\ub8cc(\uad6c\ub9ac \ub610\ub294 \uc54c\ub8e8\ubbf8\ub284)<\/td>\n<td>\ubb3c\ub9ac\uc801 \ud06c\uae30, \ubb34\uac8c, \uc190\uc2e4 \ubc0f \ub2e8\uc790 \ub3d9\uc791\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>\uc784\ud53c\ub358\uc2a4 (%Z)<\/td>\n<td>\uace0\uc7a5 \uc804\ub958 \uacc4\uc0b0 \ubc0f \ubcf4\ud638 \uc870\uc815\uc744 \uc704\ud574 \ud544\uc694\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>\uc628\ub3c4 \uc0c1\uc2b9 \ubc0f \uc808\uc5f0 \ub4f1\uae09<\/td>\n<td>\ud5c8\uc6a9 \uac00\ub2a5\ud55c \ubd80\ud558 \ubc0f \uc608\uc0c1 \uc808\uc5f0 \uc218\uba85\uc744 \uaddc\uc815\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>K-\uacc4\uc218 \ub610\ub294 \uace0\uc870\ud30c \ub4f1\uae09<\/td>\n<td>\ubd80\ud558\uac00 \ube44\uc120\ud615\uc778 \uacbd\uc6b0 \ud544\uc694\ud569\ub2c8\ub2e4 \u2014 \ub4dc\ub77c\uc774\ube0c, \uc815\ub958\uae30, IT \uc7a5\ube44<\/td>\n<\/tr>\n<tr>\n<td>\uad8c\uc120 \uc628\ub3c4 \uc13c\uc11c<\/td>\n<td>\uc5f4 \uc0c1\ud0dc\ub97c \ubaa8\ub2c8\ud130\ub9c1\ud560 \uc218 \uc788\ub294\uc9c0 \uc5ec\ubd80\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>45 kVA\ub85c \uc815\uaca9\ub41c \ubcc0\uc555\uae30\uac00 \ud63c\ud569 \uc0c1\uc5c5\uc801 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc744 \uacf5\uae09\ud560 \uc218 \uc788\uc9c0\ub9cc, \ub3d9\uc77c\ud55c kVA \uc815\uaca9\uc744 \uac00\uc9c4 \ubcc0\uc555\uae30\uac00 \ubcc0\ub3d9 \uc8fc\ud30c\uc218 \ub4dc\ub77c\uc774\ube0c \ubc45\ud06c\ub97c \uacf5\uae09\ud558\ub294 \uac83\uacfc\ub294 \uc804\ud600 \ub2e4\ub985\ub2c8\ub2e4. \uc0ac\uc591\uc744 \uc791\uc131\ud558\ub294 \uacbd\uc6b0, \uc2e4\uc81c\ub85c \uad6c\ub9e4\ub97c \uc81c\uc57d\ud558\ub294 \ub9e4\uac1c\ubcc0\uc218 \u2014 \uadf8\ub9ac\uace0 \uacf5\uae09\uc5c5\uccb4\uac00 \uac00\uc7a5 \uba3c\uc800 \ubb3b\ub294 \uac83 \u2014 \ub294 <a href=\"\/ko\/blog\/transformer-specifications-explained\/\">\ubcc0\uc555\uae30 \uc0ac\uc591 \uc124\uba85<\/a> \uc870\ub2ec \uce21\uba74\uc5d0\uc11c \uc124\uc815\ub429\ub2c8\ub2e4.<\/p>\n<h2>45 kVA \ubcc0\uc555\uae30\uc758 \ube44\uc6a9<\/h2>\n<p>\uc608\uc0b0 \uce21\uba74\uc5d0\uc11c 45 kVA \ubcc0\uc555\uae30\uc758 \ud45c\uc900 \ube44\uc6a9\uc740 \uc57d \uba87 \ucc9c \ub2ec\ub7ec\uc785\ub2c8\ub2e4. \ud558\ub098\ub97c \uad6c\ub9e4\ud558\ub294 \ube44\uc6a9\uc740 \uad8c\uc120\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc7ac\ub8cc, \ucf00\uc774\uc2a4 \uc720\ud615, \uc0ac\uc591 \ubc0f \uc804\uae30\uc801 \ucc28\ud3d0 \ub610\ub294 K-\ub4f1\uae09\uacfc \uac19\uc740 \ucd94\uac00 \uae30\ub2a5\uc758 \ud544\uc694\uc131 \ub4f1 \uc5ec\ub7ec \uc694\uc778\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc608\uc0b0 \uc694\uad6c \uc0ac\ud56d \uce21\uba74\uc5d0\uc11c \ud328\ub4dc \uc7a5\ucc29\ud615 \ubc0f \uc624\uc77c \ucda9\uc804\ud615 \ubaa8\ub378\uc740 \ud6e8\uc52c \ub354 \ube44\uc309\ub2c8\ub2e4. \uc704\uc758 \ub0b4\uc6a9\uc740 \uc7a5\uce58 \uc790\uccb4\uc758 \ub300\ub7b5\uc801\uc778 \ube44\uc6a9\uc77c \ubfd0\uc774\uba70, \uc608\uc0b0\uc5d0\ub294 1\ucc28 \ubc0f 2\ucc28 \ubcf4\ud638 \uc7a5\uce58, \ubc30\uc120, \uc7a5\ucc29, \ud658\uae30 \ubc0f \ud14c\uc2a4\ud2b8 \ube44\uc6a9\ub3c4 \ud3ec\ud568\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p>\ubcc0\uc555\uae30 \uc870\ub2ec\uc5d0\uc11c \ub3c8\uc774 \uc5b4\ub514\ub85c \uac00\ub294\uc9c0\uc5d0 \ub300\ud55c \uc804\uccb4 \uadf8\ub9bc \u2014 \uadf8\ub9ac\uace0 \uc7a5\uce58\uc640 \uc8fc\ubcc0 \ubaa8\ub4e0 \uac83\uc758 \ube44\uc6a9\uc774 \uc5bc\ub9c8\ub098 \ub418\ub294\uc9c0 \u2014 \ub294 <a href=\"\/ko\/blog\/how-much-does-an-electrical-transformer-cost\/\">\ubcc0\uc555\uae30 \ube44\uc6a9 \uac00\uc774\ub4dc\uc5d0 \uc124\uc815\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/a>. \uc791\uc740 \ubcc0\uc555\uae30 \uc608\uc0b0\uc744 \ubcf4\ud638\ud558\uae30 \uc704\ud55c \uc561\uc138\uc11c\ub9ac\ub97c \uc544\ub07c\ub294 \uac83\uc740 \uc798\ubabb\ub41c \uacbd\uc81c\uc785\ub2c8\ub2e4. \uc65c\ub0d0\ud558\uba74 \ubcf4\ud638 \uc7a5\uce58\uac00 \uace0\uc7a5\uc744 \uc0c1\uc790 \uc548\uc5d0 \uc720\uc9c0\ud558\uace0 \ud654\uc7ac\ub85c \uc804\ud658\ub418\uc9c0 \uc54a\ub3c4\ub85d \ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<h2>45 kVA \uc7a5\uce58\uac00 \uc2e4\uc81c\ub85c \uc0ac\uc6a9\ub418\ub294 \uacf3<\/h2>\n<p>510 VA\ub294 \uc18c\uaddc\ubaa8 \uc0c1\uc5c5 \ud328\ub110\uc5d0 415 V\ub97c 230 V\/115 V\ub85c \ubcc0\ud658\ud560 \ub54c \ubcc0\uc555\uae30 \ud06c\uae30\ub85c \uc790\uc8fc \uc5b8\uae09\ub429\ub2c8\ub2e4. \uc774\ub294 \uc18c\ub9e4 \uc778\ud14c\ub9ac\uc5b4, \ub808\uc2a4\ud1a0\ub791, \uc784\ub300 \uad6c\uc5ed, \uc0c1\uc810, \uc18c\ud615 \uae30\uacc4 \uadf8\ub8f9 \ub610\ub294 \uacbd\ub7c9 \uc0b0\uc5c5 \uc9c0\uc5ed\uc758 \uc870\uba85 \ucf58\uc13c\ud2b8 \ud328\ub110\uacfc \uac19\uc740 \uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc720\ud615\uc758 \ubd80\ud558\ub294 \ud2b9\uc815 \ubd80\ud558\ub97c \ubd84\ub9ac\ud558\uac70\ub098 \ud574\ub2f9 \uc9c0\uc5ed\uc5d0\uc11c \ubcc4\ub3c4\ub85c \uc720\ub3c4\ub41c \uc2dc\uc2a4\ud15c\uc744 \uc124\uc815\ud558\ub294 \ub370 \uc790\uc8fc \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<p>511 VA\uac00 \uc774 \ud2b9\uc815 \uc2dc\uc7a5\uc5d0\uc11c \ub450\ub4dc\ub7ec\uc9c0\ub294 \uadfc\ubcf8\uc801\uc778 \uc774\uc720\uac00 \uc788\uc2b5\ub2c8\ub2e4: \uc774\ub294 \uc18c\uaddc\ubaa8 \uc0c1\uc5c5 \uc218\uc694\ub97c \ucda9\uc871\ud558\ub294 \ub370 \uc801\ud569\ud558\uba70 \ubcbd \ub610\ub294 \ubc14\ub2e5\uc5d0 \uc7a5\ucc29\ub41c \uc778\ud074\ub85c\uc800\uc5d0 \uc124\uce58\ud558\uae30\uc5d0 \uc801\uc808\ud55c \ud06c\uae30\uc774\uba70 \ub2e8\uc77c \uc778\uc6d0\uc774 \ubc30\uc1a1\ud560 \uc218 \uc788\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4. \uc774 \ud06c\uae30\uc758 \ubcc0\uc555\uae30\uac00 \ubc30\uc804 \uacc4\ud68d\uc5d0\uc11c \uc5b4\ub514\uc5d0 \uc704\uce58\ud558\ub294\uc9c0 \ub9e4\ud551\ud558\uace0 \uc788\ub2e4\uba74, <a href=\"\/ko\/blog\/distribution-transformer-basics\/\">\ubc30\uc804 \ubcc0\uc555\uae30 \uae30\ucd08<\/a> \uc801\uc808\ud55c \uae30\uc900 \ud504\ub808\uc784\uc774 \ub429\ub2c8\ub2e4. \uc65c\ub0d0\ud558\uba74 \uc0c1\ub958 \ubc0f \ud558\ub958 \uacb0\uc815\uc774 \u201c45 kVA\u201d\uac00 \ud544\uc694\ub85c \ud558\ub294 \uac83\uc744 \ubcc0\uacbd\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<h2>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h3>45 kVA \ubcc0\uc555\uae30\uc5d0 \ud544\uc694\ud55c \uc804\uc120\uc758 \ud06c\uae30\ub294 \uc5bc\ub9c8\uc778\uac00\uc694?<\/h3>\n<p>\ud574\ub2f9 \uce21\uba74\uc5d0\uc11c\uc758 \uc815\uaca9 \uc804\ub958\ub97c \ud655\uc778\ud558\uace0, \uc774 \uc804\ub958\uc758 125%\ub97c \uac00\uc838\uc635\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c, \ud574\ub2f9 \uc804\uc120\uc774 \uc885\ub8cc\ub420 \uc2e4\uc81c \uc628\ub3c4\ub97c \uae30\uc900\uc73c\ub85c \uc801\uc6a9 \uac00\ub2a5\ud55c \uc804\ub958 \uc6a9\ub7c9 \ud45c\uc5d0 \ud574\ub2f9\ud558\ub294 \ub3c4\uccb4\ub97c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 480\u2013208 V \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uae30\ubcf8 \uce21\uba74\uc740 67.6 A(75\u00b0C\uc5d0\uc11c 4 AWG \ub3c4\uccb4 \uc0ac\uc6a9)\uc774\uace0, \ubcf4\uc870 \uce21\uba74\uc740 156.1 A(75\u00b0C\uc5d0\uc11c 2\/0 AWG \ub3c4\uccb4 \uc0ac\uc6a9)\uc785\ub2c8\ub2e4. \uc774\ud6c4\uc5d0\ub294 \uc8fc\ubcc0 \uc628\ub3c4\uc640 \ub3c4\uccb4 \uc218\uc5d0 \ub530\ub978 \uac10\ub7c9\uc744 \uc801\uc6a9\ud574\uc57c \ud558\uba70, \uc804\uc555 \uac15\ud558\ub97c \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3>45 kVA\ub97c \uc554\ud398\uc5b4\ub85c \ubcc0\ud658\ud558\ub824\uba74 \uc5b4\ub5bb\uac8c \ud558\ub098\uc694?<\/h3>\n<p>\uc0bc\uc0c1 \uacc4\uc0b0\uc758 \uacbd\uc6b0: 45\uc5d0 1,000\uc744 \uacf1\ud558\uc5ec 45,000 VA\ub97c \uc124\uc815\ud569\ub2c8\ub2e4. \uc804\ub958\ub97c \uacb0\uc815\ud558\ub824\uba74 \uc774\uc81c 45,000 VA\ub97c 1.732\uc5d0 \uc120\uac04 \uc804\uc555\uc744 \uacf1\ud55c \uac12\uc73c\ub85c \ub098\ub204\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc774 \uacbd\uc6b0, \uc608\ub97c \ub4e4\uc5b4 \uc120\uac04 \uc804\uc555\uc774 480 V\ub77c\uba74 45,000\uc744 831.4\ub85c \ub098\ub204\uc5b4 54.1 A\uac00 \ub429\ub2c8\ub2e4. \ub2e8\uc0c1 \uacc4\uc0b0\uc758 \uacbd\uc6b0, \uc801\uc6a9 \uac00\ub2a5\ud55c \uc804\uc555\uc73c\ub85c 45,000\uc744 \uac04\ub2e8\ud788 \ub098\ub204\uba74 \ub429\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc774\uc804 \uc608\ub97c \ub4e4\uba74, 45,000\uc744 240\uc73c\ub85c \ub098\ub204\uc5b4 187.5 A\uc758 \uc804\ub958\ub97c \uc5bb\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>50 kVA \ubcc0\uc555\uae30\uc758 3\uc0c1 \uc804\ub958\ub294 \uba87 \uc554\ud398\uc5b4\uc778\uac00\uc694?<\/h3>\n<p>480 V\uc5d0\uc11c 60.1 A, 240 V\uc5d0\uc11c 120.3 A, 208 V\uc5d0\uc11c 138.8 A\uc785\ub2c8\ub2e4. \ubc29\ubc95\uc740 \ub3d9\uc77c\ud569\ub2c8\ub2e4 \u2013 50,000\uc744 \uc120\uac04 \uc804\uc555\uc758 1.732\ubc30\ub85c \ub098\ub204\uba74 \ub429\ub2c8\ub2e4 \u2013 \uc774\ub294 \ub3d9\uc77c\ud55c \uc804\uc555 \uc218\uc900\uc5d0\uc11c 45 kVA \uc7a5\uce58\uc5d0 \ube44\ud574 \uc57d 11%\uc758 \uc99d\uac00\ub41c \uc804\ub958\ub97c \uac00\uc9c0\ub294 50 kVA \uc7a5\uce58\uc758 \uc774\uc720\uc785\ub2c8\ub2e4.<\/p>\n<h3>40 VA \ubcc0\uc555\uae30\ub294 \uba87 \uc554\ud398\uc5b4\ub97c \ucc98\ub9ac\ud560 \uc218 \uc788\ub098\uc694?<\/h3>\n<p>\uc5ec\uae30\uc11c\ub294 \ub2e4\ub978 \uac83\uc744 \ub2e4\ub8e8\uace0 \uc788\uc2b5\ub2c8\ub2e4: 40 VA\ub294 \uc2e4\uc81c\ub85c 40 \ubcfc\ud2b8-\uc554\ud398\uc5b4\uc774\uba70, \ud0ac\ub85c\ubcfc\ud2b8-\uc554\ud398\uc5b4\uac00 \uc544\ub2d9\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ub9e4\uc6b0 \uc791\uc740 \uc81c\uc5b4 \ubcc0\uc555\uae30\uc785\ub2c8\ub2e4. 24 V\uc758 \ubcf4\uc870 \uc804\uc555\uc5d0\uc11c 40 VA\ub294 1.7 A\uc758 \uc804\ub958\ub97c \uc81c\uacf5\ud558\uba70, 120 V\uc758 \uae30\ubcf8 \uc804\uc555\uc5d0\uc11c \uc804\ub958 \uc18c\ubaa8\ub294 0.33 A\uc785\ub2c8\ub2e4. \uacb0\uacfc\ub294 \ube44\uc2b7\ud569\ub2c8\ub2e4; \ub098\ub204\ub294 \uc22b\uc790\ub294 40,000\uc774 \uc544\ub2cc 40\uc774\uba70, \uc81c\uc5b4 \ubcc0\uc555\uae30\ub294 \ub9b4\ub808\uc774\ub098 \uc811\ucd09\uae30\uac00 \ub3d9\uc77c\ud55c \ud68c\ub85c\uc5d0\uc11c \uc791\ub3d9\ud560 \ub54c \ubc1c\uc0dd\ud558\ub294 \ub3cc\uc785 \uc804\ub958\uc5d0 \ub300\ud55c \uc5ec\uc720\ub97c \ub450\uace0 \uc124\uacc4\ub418\ub294 \uacbd\ud5a5\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>45 kVA \ubcc0\uc555\uae30\ub97c 100% \ubd80\ud558\uc5d0\uc11c \uc9c0\uc18d\uc801\uc73c\ub85c \uc6b4\uc601\ud560 \uc218 \uc788\ub098\uc694?<\/h3>\n<p>\uc815\uaca9\uc744 \uc720\uc9c0\ud558\uaca0\uc9c0\ub9cc, \ud2b9\ud788 \ub530\ub73b\ud55c \uc9c0\uc5ed\uc5d0\uc11c\uc758 \uc815\uaca9 \ubd80\ud558\uc5d0\uc11c\uc758 \ube48\ubc88\ud55c \uc0ac\uc6a9\uc740 \uc808\uc5f0\uc758 \ub178\ud654\ub97c \uac00\uc18d\ud654\ud558\uc5ec \uc218\uba85\uc744 \ub2e8\ucd95\uc2dc\ud0b5\ub2c8\ub2e4. \uc774\uc0c1\uc801\uc73c\ub85c\ub294 \uc9c0\uc18d\uc801\uc778 \ubd80\ud558\ub294 \uc815\uaca9\uc758 \uc57d 80%\ub85c \uc81c\ud55c\ud558\ub294 \uac83\uc774 \uad8c\uc7a5\ub429\ub2c8\ub2e4(\uc6b0\ub9ac \uacbd\uc6b0 45 kVA \uc138\ud2b8\uc758 \uacbd\uc6b0 \uc57d 36 kVA\uc5d0 \ud574\ub2f9).<\/p>\n<h3>45 kVA \uc815\uaca9\uc740 \uc804\uc555\uc5d0 \ub530\ub77c \ubcc0\uacbd\ub418\ub098\uc694?<\/h3>\n<p>\uc544\ub2c8\uc694, kVA\ub294 \uc591\ucabd\uc5d0\uc11c \ub3d9\uc77c\ud558\uba70, \uc774\ub294 \ubcc0\uc555\uae30\ub97c \uac89\ubcf4\uae30 \uc804\ub825\uc73c\ub85c \uc815\uaca9\ud654\ud558\ub294 \uc774\uc720\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc804\ub958\ub294 \ubcc0\ub3d9\ud569\ub2c8\ub2e4. \uc804\uc555\uc774 \uac10\uc18c\ud558\uc9c0\ub9cc \uc804\ub958\ub294 \uc99d\uac00\ud558\uc5ec \uc190\uc2e4\uc744 \uace0\ub824\ud560 \ub54c \uacf1\uc148 \uacb0\uacfc\ub294 \uc77c\uc815\ud558\uac8c \uc720\uc9c0\ub429\ub2c8\ub2e4. \uadf8\ub798\uc11c 45 kVA \ubcc0\uc555\uae30\ub294 \uae30\ubcf8 \uc804\ub958\uac00 54.1 A\uc774\uace0 \ubcf4\uc870 \uc804\ub958\uac00 124.9 A\uc785\ub2c8\ub2e4.<\/p>\n<h2>\ucc38\uace0 \ubb38\ud5cc<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.eaton.com\/us\/en-us\/products\/electrical-circuit-protection.html\" rel=\"nofollow noopener\" target=\"_blank\">Eaton \u2014 \uc804\ub825 \ubd84\ubc30 \uc2dc\uc2a4\ud15c \ucc38\uc870 \ub370\uc774\ud130<\/a><\/li>\n<li><a href=\"https:\/\/www.se.com\/us\/en\/\" rel=\"nofollow noopener\" target=\"_blank\">Schneider Electric \u2014 \ubcc0\uc555\uae30 \uc815\uaca9 \uc804\ub958 \ud45c<\/a><\/li>\n<li><a href=\"https:\/\/www.nfpa.org\/codes-and-standards\/nfpa-70-standard-development\/70\" rel=\"nofollow noopener\" target=\"_blank\">NFPA 70 \u2014 \uad6d\uac00 \uc804\uae30 \uaddc\uc815, \uc81c450\uc870 \ubc0f \uc81c240\uc870<\/a><\/li>\n<li><a href=\"https:\/\/www.ul.com\/\" rel=\"nofollow noopener\" target=\"_blank\">UL \uc194\ub8e8\uc158 \u2014 UL 1561 \uac74\uc2dd \ubcc0\uc555\uae30<\/a><\/li>\n<li><a href=\"https:\/\/www.ieee.org\/\" rel=\"nofollow noopener\" target=\"_blank\">IEEE \u2014 C57 \uc2dc\ub9ac\uc988 \ubcc0\uc555\uae30 \ud45c\uc900<\/a><\/li>\n<\/ul>\n<h2>\uacb0\ub860<\/h2>\n<p>45 kVA\ub294 \uc791\uc740 \uac12\uc774\uc9c0\ub9cc \ub9ce\uc740 \uacc4\uc0b0\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4. 480 V \uc120\uce21\uc5d0\uc11c\ub294 54.1 A\uc5d0 \ud574\ub2f9\ud558\uba70; 208 V\uc5d0\uc11c\ub294 124.9 A; 240 V(\ub2e8\uc0c1)\uc5d0\uc11c\ub294 187.5 A\uc785\ub2c8\ub2e4. \uacf5\uc2dd\uc740 \ud56d\uc0c1 \ub3d9\uc77c\ud558\uba70, \uc774\ub294 kVA\uc5d0 1,000\uc744 \uacf1\ud558\uace0 1.732\ub85c \ub098\ub208 \ud6c4 \uc120\uac04 \uc804\uc555\uc744 \uacf1\ud55c \uac12\uc774 \uade0\ud615 \uc7a1\ud78c 3\uc0c1 \uc2dc\uc2a4\ud15c\uc5d0 \uc0ac\uc6a9\ub41c\ub2e4\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc798\ubabb\ub41c \uacc4\uc0b0\uc744 \ucd08\ub798\ud558\ub294 \uc694\uc778\uc740 \ud56d\uc0c1 \uc138 \uac00\uc9c0 \uc720\ud615\uc758 \uc624\ub958\uc5d0\uc11c \ubc1c\uc0dd\ud569\ub2c8\ub2e4: \uc120-\uc911\uc131 \uac12\uc744 \uc120-\uc120 \uacc4\uc0b0\uc5d0 \ub123\uae30; \ud544\uc694\ud558\uc9c0 \uc54a\uc744 \ub54c kVA \uacc4\uc0b0\uc5d0 \uc5ed\ub960\uc744 \ucd94\uac00\ud558\uae30; \uc804\uccb4 \ubd80\ud558 \uc804\ub958\uac00 \ub3c4\uccb4 \uc9c1\uacbd\uc744 \uc758\ubbf8\ud55c\ub2e4\uace0 \uac00\uc815\ud558\uae30.<\/p>\n<p>\uc62c\ubc14\ub974\uac8c \uc218\ud589\ud558\uba74 \ub098\uba38\uc9c0\ub294 \uac04\ub2e8\ud569\ub2c8\ub2e4: 125% \uaddc\uce59\uc744 \uc120-\uc911\uc131\uacfc \uc120-\uc120 \ubaa8\ub450\uc5d0 \uc801\uc6a9\ud558\uace0, \uc2e4\uc81c \uc870\uac74\uc5d0 \ub530\ub77c \uac10\uc0b0\ud558\uba70, \uacc4\uc0b0\ub41c \uac12\uc744 \uae30\ubc18\uc73c\ub85c \ubcf4\ud638 \uc7a5\uce58\ub97c \uc124\uacc4\ud558\uace0, \ub3cc\uc785 \uac12\uc774 \uc544\ub2cc \uc2e4\uc81c \uc2dc\uc2a4\ud15c \uc124\uacc4\uc5d0\uc11c \uc5ed\ud560\uc744 \ud558\ub294 \ub9e4\uac1c\ubcc0\uc218 \u2014 \uc784\ud53c\ub358\uc2a4, \uc628\ub3c4 \uc0c1\uc2b9, k-\uacc4\uc218 \ubc0f \ud0ed\uc744 \ud655\uc778\ud558\uae30 \uc704\ud574 \uba85\ud310\uc744 \uac80\uc99d\ud558\uc2ed\uc2dc\uc624. \uacc4\uc0b0\uc744 \uc62c\ubc14\ub974\uac8c \uc218\ud589\ud558\uba74 45 kVA \ubcc0\uc555\uae30\ub294 30\ub144 \ub3d9\uc548 \uc870\uc6a9\ud788 \uc637\uc7a5 \uc548\uc5d0\uc11c \uc791\ub3d9\ud558\uba70 \uacc4\uc0b0\uc11c\uc5d0 \uba85\uc2dc\ub41c \ub300\ub85c \uc791\ub3d9\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>While the 45 kVA transformer is probably the most widely used size of transformers for the small commercial and light industrial sectors, it is also where many people fail because of the question of the actual current hands. The answer would depend upon which part of the transformer is looked into, what voltage is used, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":11620,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11619","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/11619","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/comments?post=11619"}],"version-history":[{"count":3,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/11619\/revisions"}],"predecessor-version":[{"id":11624,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/11619\/revisions\/11624"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media\/11620"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media?parent=11619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/categories?post=11619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/tags?post=11619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}