{"id":10898,"date":"2026-08-29T23:43:09","date_gmt":"2026-08-29T15:43:09","guid":{"rendered":"https:\/\/q8bbzjnpm5.wpdns.site\/?p=10898"},"modified":"2026-08-29T23:43:09","modified_gmt":"2026-08-29T15:43:09","slug":"scientific-methods-for-selecting-transformers-based-on-the-power-of-electrical-equipment","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/ko\/news\/scientific-methods-for-selecting-transformers-based-on-the-power-of-electrical-equipment\/","title":{"rendered":"\uc804\uae30 \uc7a5\ube44\uc758 \uc804\ub825\uc5d0 \uae30\ubc18\ud55c \ubcc0\uc555\uae30 \uc120\ud0dd\uc744 \uc704\ud55c \uacfc\ud559\uc801 \ubc29\ubc95"},"content":{"rendered":"<p>\ubca0\ud2b8\ub0a8\uc758 \ud55c \uc12c\uc720 \uacf5\uc7a5\uc740 \uac01\uac01 15 kW \uc815\uaca9\uc758 \uc5f4\ub450 \ub300\uc758 \uc9c1\uc870 \uae30\uacc4\ub97c \uac00\ub3d9\ud560 \uc900\ube44\ub97c \ud558\uace0 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \uc18c\uc720\uc790\uc758 \uacb0\ub860\uc740 \ub9e4\uc6b0 \uac04\ub2e8\ud588\uc2b5\ub2c8\ub2e4: \uc5f4\ub450 \ub300\uc758 \uae30\uacc4\uc5d0 15 kW\ub97c \uacf1\ud558\uba74 180 kW\uac00 \ub418\ubbc0\ub85c, 200 kVA \ubcc0\uc555\uae30\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uadf8 \uc2dc\uc810\uc5d0\uc11c \uc804\uae30 \uacc4\uc57d\uc790\ub294 \uc8fc\ubb38\uc744 \ucde8\uc18c\ud588\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c\ub85c \uac01 \uae30\uacc4\ub294 0.83\uc758 \uc5ed\ub960\ub85c \uc57d 18 kVA\ub97c \uc18c\ube44\ud558\uba70; \uc774\ub4e4\uc758 \uae30\ub3d9 \uc804\ub958\ub294 \uc815\uc0c1 \uc804\ub958\ubcf4\ub2e4 \ucd5c\ub300 \uc5ec\uc12f \ubc30 \ub354 \ub192\uc2b5\ub2c8\ub2e4; \uc774\ub7ec\ud55c \uae30\uacc4\uc5d0 \uacf5\uae09\ub418\ub294 \uacf5\uae30 \uc555\ucd95\uae30\ub294 60 kVA\ub97c \ucd94\uac00\ud558\uba70; \uac8c\ub2e4\uac00, \uc774\ubbf8 \uacf5\uc7a5\uc5d0 \ub450 \uac1c\uc758 \ub77c\uc778\uc774 \ucd94\uac00\ub420 \uacc4\ud68d\uc785\ub2c8\ub2e4. \uacfc\ud559\uc801\uc73c\ub85c \uc815\ub2f9\ud654\ub41c \uc811\uadfc \ubc29\uc2dd\uc744 \uc0ac\uc6a9\ud588\uc744 \ub54c, \uacc4\uc0b0 \uacb0\uacfc 500 kVA \ubcc0\uc555\uae30\uac00 \ud544\uc694\ud558\ub2e4\ub294 \uac83\uc774 \ub098\ud0c0\ub0ac\uc73c\uba70, \uc774\ub294 \ub2e8\uc21c \uacc4\uc0b0 \ubc29\ubc95\uc73c\ub85c \uc5bb\uc740 \uac12\uc758 \ub450 \ubc30\uac00 \ub118\uc2b5\ub2c8\ub2e4. \uadf8\ub807\uae30 \ub54c\ubb38\uc5d0 \ubcc0\uc555\uae30 \uc120\ud0dd\uc740 \uc7a5\ube44\uc758 \uc804\ub825\uc5d0 \uae30\ubc18\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n<p>\uc774 \uae30\uc0ac\uc5d0\uc11c\ub294 \uc804\uae30 \uc7a5\ube44\uc758 \uc804\ub825 \uc694\uad6c \uc0ac\ud56d\uc5d0 \uae30\ubc18\ud55c \uacfc\ud559\uc801\uc73c\ub85c \uc62c\ubc14\ub978 \ubcc0\uc555\uae30 \uc120\ud0dd\uc774 \uc81c\uc2dc\ub429\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10899\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/Scientific-Transformer-Selection-Based-on-equipment-power.webp\" alt=\"\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>kW \ucd94\uac00\uac00 \ud06c\uae30 \uacb0\uc815 \ubc29\ubc95\uc73c\ub85c \uc2e4\ud328\ud55c \uc774\uc720<\/h2>\n<p>\ubaa8\ub4e0 \uc7a5\ube44\uc758 \uc774\ub984\ud310 kW\uc758 \ud569\uacc4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud574\ub2f9 kVA \uc815\uaca9\uc744 \uc81c\uacf5\ud558\ub294 \ubcc0\uc555\uae30\ub97c \uc120\ud0dd\ud558\ub294 \uac83\uc740 \uc5c5\uacc4\uc5d0\uc11c \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ud06c\uae30 \uacb0\uc815 \uc624\ub958\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uadf8 \uc2e4\ud328\uc5d0 \ub300\ud55c \uacfc\ud559\uc801 \uc774\uc720\uc785\ub2c8\ub2e4:<\/p>\n<p>\uc5ed\ub960\uc774 \ubb34\uc2dc\ub429\ub2c8\ub2e4. \uc2e4\uc81c \uc804\ub825\uc740 \ubaa8\ud130, \uc555\ucd95\uae30 \ub610\ub294 \ub7a8\ud504\uc758 \uac89\ubcf4\uae30 \uc804\ub825\ubcf4\ub2e4 \ud6e8\uc52c \ub0ae\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 180 kW\uc758 \uc2e4\uc81c \uc804\ub825\uc744 \uc0ac\uc6a9\ud558\ub294 \ubaa8\ud130\ub294 0.85\uc758 \uc5ed\ub960\uc5d0\uc11c 212 kVA\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc774\ub294 200 kVA \ubcc0\uc555\uae30\ub97c \uacfc\ubd80\ud558\ud560 \uc218 \uc788\ub294 18%\uc758 \ucc28\uc774\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<br \/>\n\ub2e4\uc591\uc131\uc774 \ubb34\uc2dc\ub429\ub2c8\ub2e4. \uc2e4\uc81c\ub85c \uae30\uacc4\ub4e4\uc774 \ub3d9\uc2dc\uc5d0 \ucd5c\ub300 \uc6a9\ub7c9\uc73c\ub85c \uc791\ub3d9\ud558\ub294 \uacbd\uc6b0\ub294 \ub4dc\ubb45\ub2c8\ub2e4. \uae30\uacc4\uc758 \uc815\uaca9 \uc804\ub825\uc744 \ub354\ud558\uba74 20-40%\uc758 \ucc28\uc774\uac00 \ubc1c\uc0dd\ud558\uba70, \uc774\ub294 \ud544\uc694\ud55c \uac12\ubcf4\ub2e4 \ub192\uc740 \uc815\uaca9\uc758 \ubcc0\uc555\uae30\uc5d0 \ub0ad\ube44\ub418\ub294 \ub3c8\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<br \/>\n\uae30\ub3d9 \uc804\ub958\uac00 \ubb34\uc2dc\ub429\ub2c8\ub2e4. \ub300\ud615 \uc804\uae30 \ubaa8\ud130\ub294 \uae30\ub3d9 \uc2dc \uc815\uc0c1 \uc804\ub958\uc758 \ucd5c\ub300 \uc5ec\uc12f \ubc30\uae4c\uc9c0 \uc18c\ube44\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc804\uc555\uc774 \ubd95\uad34\ub418\uace0 \ub9b4\ub808\uc774\uac00 \uaebc\uc9c8 \uc218 \uc788\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n<p>\ud559\ubb38\uc801 \uc811\uadfc\uc740 \ubaa8\ub4e0 \ud6a8\uacfc\ub97c \uacb0\ud569\ud558\uc5ec \ucd5c\uc885 \ubcc0\uc555\uae30 \ud06c\uae30\ub97c \uacb0\uc815\ud558\ub294 \ubc29\ubc95\uc73c\ub85c, \uc9c1\uad00\uc774 \uc544\ub2cc \ubb3c\ub9ac\ud559\uc5d0 \uc758\ud574 \uacb0\uc815\ub429\ub2c8\ub2e4.<\/p>\n<h2 id=\"power-conversion\">\uc7a5\ube44 kW\uc5d0\uc11c \ubcc0\uc555\uae30 kVA\ub85c<\/h2>\n<p>\uae30\ubcf8 \ubc29\uc815\uc2dd\uc740 kVA = kW \u00f7 \uc5ed\ub960\uc785\ub2c8\ub2e4. \uc0bc\uc0c1 \uc7a5\uce58 \ubc0f \uc7a5\ube44\uac00 \ud3ec\ud568\ub41c \uacbd\uc6b0, kVA = (\u221a3 \u00d7 V \u00d7 I) \u00f7 1000\uc758 \uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec kVA\ub97c \uacc4\uc0b0\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uae30\uacc4 \uc774\ub984\ud310\uc5d0\ub294 \ud544\uc694\ud55c \ubaa8\ub4e0 \uc815\ubcf4\uac00 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4: \uc815\uaca9 kW, \uc804\uc555, \uc815\uaca9 \uc804\ub958 \ubc0f \ub54c\ub54c\ub85c \ud6a8\uc728 \uac12. \ud56d\uc0c1 \ubcc0\uc555\uae30 \ubc84\uc2a4\uc758 kVA\ub97c \uc0ac\uc6a9\ud574\uc57c \ud558\uba70, \ubaa8\ud130 \ub2e8\uc790 kVA \ub300\uc2e0 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub294 \uacf5\uae09\uc120 \uc804\ubc18\uc5d0 \uac78\uccd0 \uc190\uc2e4\uc744 \uace0\ub824\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4 (\uc7a5\uac70\ub9ac\uc5d0\uc11c\uc758 2-5% \uc190\uc2e4).<\/p>\n<p>\ubaa8\ud130 \ub9c8\ub825\ub9cc \uc54c\uace0 \uc788\ub294 \uc124\uc815\uc758 \uacbd\uc6b0, \ubcc0\ud658 1 hp \u2248 0.746 kW\ub97c \uc0ac\uc6a9\ud558\uc5ec \uacc4\uc0b0\ud558\uace0 \ubaa8\ud130 \ud6a8\uc728 \uac12(\uc77c\ubc18\uc801\uc73c\ub85c 0.90\uacfc 0.95 \uc0ac\uc774)\uc73c\ub85c \ub098\ub204\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc774 \uacbd\uc6b0, 100 hp \ubaa8\ud130\ub294 100 \u00d7 0.746 \u00f7 0.93 \u00f7 0.85\uc758 \uacb0\uacfc\ub85c \uc57d 94 kVA\ub97c \uc18c\ube44\ud558\uba70, \uc791\ub3d9 \uc911\uc5d0\ub294 5\ubc30\uc5d0\uc11c 8\ubc30 \ub354 \ud07d\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\uc7a5\ube44 \uc720\ud615<\/th>\n<th>\uc77c\ubc18\uc801\uc778 \uc804\ub825 \uacc4\uc218<\/th>\n<th>\uc77c\ubc18\uc801\uc778 \ub2e4\uc591\uc131<\/th>\n<th>\uba85\ud310\ub2f9 100 kW\ub2f9 kVA<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc720\ub3c4 \uc804\ub3d9\uae30(\uc77c\ubc18)<\/td>\n<td>0.80\u20130.88<\/td>\n<td>0.70\u20130.85<\/td>\n<td>114\u2013125<\/td>\n<\/tr>\n<tr>\n<td>VFD \uad6c\ub3d9 \uc804\ub3d9\uae30<\/td>\n<td>95 (\uc785\ub825)<\/td>\n<td>0.70\u20130.80<\/td>\n<td>105<\/td>\n<\/tr>\n<tr>\n<td>\uc800\ud56d \uac00\uc5f4 \/ \uc624\ube10<\/td>\n<td>1.00<\/td>\n<td>0.60\u20130.80<\/td>\n<td>100<\/td>\n<\/tr>\n<tr>\n<td>LED \uc870\uba85<\/td>\n<td>0.95\u20130.99<\/td>\n<td>0.80\u20130.90<\/td>\n<td>101\u2013105<\/td>\n<\/tr>\n<tr>\n<td>\uc6a9\uc811 \uae30\uacc4<\/td>\n<td>0.45\u20130.70<\/td>\n<td>0.30\u20130.50<\/td>\n<td>143\u2013222<\/td>\n<\/tr>\n<tr>\n<td>\uc555\ucd95\uae30(\uc2a4\ud06c\ub958)<\/td>\n<td>0.82\u20130.90<\/td>\n<td>0.60\u20130.80<\/td>\n<td>111\u2013122<\/td>\n<\/tr>\n<tr>\n<td>HVAC \ub0c9\uac01\uae30<\/td>\n<td>0.80\u20130.88<\/td>\n<td>0.70\u20130.90<\/td>\n<td>114\u2013125<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc6a9\uc811 \ud589\uc744 \uc8fc\ubaa9\ud558\uc2ed\uc2dc\uc624: \ub0ae\uc740 \uc804\ub825 \uacc4\uc218\uc640 \ub9e4\uc6b0 \ub0ae\uc740 \ub2e4\uc591\uc131\uc740 \ubcc0\uc555\uae30\uac00 \ub192\uc740 kVA-per-kW \ube44\uc728\ub85c \ud06c\uae30\uac00 \uc870\uc815\ub418\uc5b4\uc57c \ud568\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\ub294 \uc2e4\uc81c \ub3d9\uc2dc \uc804\ub825 \uc18c\ube44\uac00 \uc801\uc74c\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc774\uc720\ub85c \uc77c\ubc18\uc801\uc778 \uaddc\uce59\uc740 \uc2e4\ud328\ud569\ub2c8\ub2e4 \u2014 \uacfc\ud559\uc801 \ubc29\ubc95\uc740 \ud56d\uc0c1 \uc7a5\ube44\uc758 \uc2e4\uc81c \uc804\uae30\uc801 \ud2b9\uc131\uc5d0\uc11c \uc791\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"demand-factors\">\uc218\uc694, \ub2e4\uc591\uc131 \ubc0f \uc6b0\uc5f0 \uc694\uc778<\/h2>\n<p>\uc218\uc694, \ub2e4\uc591\uc131 \ubc0f \uc6b0\uc5f0 \uc694\uc778\uc740 \ubaa8\ub450 \ubcc0\uc555\uae30 \ubc84\uc2a4\uc5d0\uc11c \ud558\uc911\uc774 \uc791\uc6a9\ud558\ub294 \ubc29\uc2dd \uac04\uc758 \ub3d9\uc77c\ud55c \uad00\uacc4\ub97c \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc218\uc694 \uacc4\uc218\ub294 \ucd5c\ub300 \uc218\uc694\ub97c \uadf8\ub8f9\uc758 \uc5f0\uacb0 \ud558\uc911\uc73c\ub85c \ub098\ub208 \uac12\uc73c\ub85c \uc815\uc758\ub418\uba70, \ud558\uc911\uc774 \uc804\uccb4 \uc6a9\ub7c9 \uc774\ud558\ub85c \uc791\ub3d9\ud558\ub294 \uacbd\ud5a5\uc774 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc77c\ubc18\uc801\uc73c\ub85c 1\ubcf4\ub2e4 \uc791\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub2e4\uc591\uc131 \uacc4\uc218\ub294 \ucd1d \ucd5c\ub300 \uc218\uc694\ub97c \ucd5c\ub300 \uc6b0\uc5f0 \uc218\uc694\ub85c \ub098\ub208 \uac12\uc73c\ub85c \uc54c\ub824\uc838 \uc788\uc73c\uba70 \uc77c\ubc18\uc801\uc73c\ub85c 1\ubcf4\ub2e4 \ud07d\ub2c8\ub2e4.<\/p>\n<p>\uc6b0\uc5f0 \uacc4\uc218\ub294 \ub3d9\uc2dc\uc5d0 \uc791\ub3d9\ud558\ub294 \uc2e4\uc81c \ud558\uc911\uc758 \uc591\uc744 \uc9c0\ubc30\ud55c\ub2e4\ub294 \uc810\uc5d0\uc11c \ub2e4\uc591\uc131 \uacc4\uc218\uc640 \uc720\uc0ac\ud558\uba70 \uc77c\ubc18\uc801\uc73c\ub85c 0.5\uc640 0.9 \uc0ac\uc774\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc774\ub7ec\ud55c \uacc4\uc218 \uc911 \ud558\ub098\ub97c kVA\uc758 \uc591\uacfc \uacb0\ud569\ud558\uc5ec \uc190\uc2e4 \ubc0f \ubcc0\uc555\uae30 \uad6c\ub9e4\uc5d0 \ub300\ud55c \uc808\uc57d \uce21\uba74\uc5d0\uc11c \uc124\uacc4 \uc218\uc694\uc758 \ucd1d\ub7c9\uc744 \ucc3e\ub294 \uba85\ud655\ud55c \uc608\ub85c \uc774\uc5b4\uc9c0\uac8c \ud569\ub2c8\ub2e4.<br \/>\n\uc608\ub97c \ub4e4\uc5b4, 500 kVA \uc5f0\uacb0 \ud558\uc911\uc758 \uacbd\uc6b0, \uc218\uc694 \uacc4\uc218\uc758 \uac12\uc740 0.9\uc774\uace0 \uc6b0\uc5f0 \uacc4\uc218\uc758 \uac12\uc740 0.8\uc774\ubbc0\ub85c \uc124\uacc4 \uc218\uc694\ub294 500 x 0.9 x 0.8 = 360 kVA\ub85c \uacc4\uc0b0\ub429\ub2c8\ub2e4.<\/p>\n<h2 id=\"starting-current\">\ubaa8\ud130 \uc2dc\uc791 \ubb38\uc81c<\/h2>\n<p>\uc2dc\uc791 \uc804\ub958\ub294 \uc18c\ud615 \ubcc0\uc555\uae30\uc640 \uad00\ub828\ud558\uc5ec \uc870\uc6a9\ud55c \uc554\uc0b4\uc790\ub85c \uc54c\ub824\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 150 kW \ubaa8\ud130\uc758 \uacbd\uc6b0, \uc9c1\uc811 \uc5f0\uacb0 \uc2dc\uc791\uc740 \uc804\uccb4 \ubd80\ud558 \uc804\ub958\uc758 5\ubc30\uc5d0\uc11c 7\ubc30\uc5d0 \ub2ec\ud558\ub294 \uc2dc\uc791 \uc804\ub958\uac00 \ud544\uc694\ud558\uba70, \uc774\ub294 3\ucd08\uc5d0\uc11c 10\ucd08 \ub3d9\uc548 \uc9c0\uc18d\ub429\ub2c8\ub2e4. \uc774\ub294 \ubcc0\uc555\uae30\uac00 \uc2dc\uc791 kVA\uc640 \ub098\uba38\uc9c0 \uc804\ub958 \ud558\uc911\uc744 \uc81c\uacf5\ud558\ub294 \ub3d9\uc548 \ubc1c\uc0dd\ud574\uc57c \ud558\uba70, \ubaa8\ud130 \ub2e8\uc790\uc5d0\uc11c \uc804\uc555 \uac15\ud558\ub97c \uc57d 10\uc5d0\uc11c 15%\ub85c \uc81c\ud55c\ud558\ub824\uace0 \uc2dc\ub3c4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p>\uc5ec\uae30\uc11c \ub17c\uc758\ub41c \uc138 \uac00\uc9c0 \uc194\ub8e8\uc158 \uc911 \ud558\ub098\uac00 \ud06c\uae30 \uc870\uc815 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \uc18c\ud504\ud2b8 \uc2a4\ud0c0\ud130\ub294 \uc2dc\uc791 \uc804\ub958\ub97c \uc804\uccb4 \ubd80\ud558 \uc804\ub958\uc758 2\ubc30\uc5d0\uc11c 3\ubc30\ub85c \uc904\uc774\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc90d\ub2c8\ub2e4. VFD\ub294 \uc2dc\uc791 \uc804\ub958\ub97c \uc57d 1.2\ubc30\uc5d0\uc11c 1.5\ubc30\ub85c \uc904\uc785\ub2c8\ub2e4. \uc2a4\ud0c0 \ub378\ud0c0 \uc2dc\uc791\uc740 \uc9c1\uc811 \uc5f0\uacb0 \uc2dc\uc791\uc758 33%\ub85c \uc904\uc774\uc9c0\ub9cc, \uc774 \ubc29\ubc95\uc740 \ud1a0\ud06c\uac00 \uac10\uc18c\ud569\ub2c8\ub2e4. \uc2dc\uc791 \uc804\ub958\ub97c \uc81c\uc5b4\ud560 \uc218 \uc788\ub2e4\uba74 \ud45c\uc900 \ub4f1\uae09 \ud558\ub098\ub97c \uc904\uc774\ub294 \uac83\uc774 \uc885\uc885 \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc81c\uc5b4\uac00 \ubd88\uac00\ub2a5\ud558\uace0 \uc2dc\uc124\uc5d0 \ub300\ud615 \uace0\uc815 \uc18d\ub3c4 \ubaa8\ud130\uac00 \uc788\ub294 \uacbd\uc6b0, \ubcc0\uc555\uae30 \ud06c\uae30\ub294 \uc5b4\ub5a4 \uc791\ub3d9 \ud558\uc911\ubcf4\ub2e4 \uc2dc\uc791 \uc804\ub958\ub97c \uae30\uc900\uc73c\ub85c \ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\uc2dc\uc791 \ubc29\ubc95<\/th>\n<th>\uc77c\ubc18\uc801\uc778 \uc2dc\uc791 \uc804\ub958 (%\uc758 FLC)<\/th>\n<th>\ubcc0\uc555\uae30 \ud06c\uae30\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc9c1\uc811 \uc5f0\uacb0 (DOL)<\/td>\n<td>500\u2013700%<\/td>\n<td>\uc911\uc694 \u2014 \ud55c \ub4f1\uae09 \ub2e8\uacc4 \ucd94\uac00 \uac00\ub2a5<\/td>\n<\/tr>\n<tr>\n<td>\uc2a4\ud0c0-\ub378\ud0c0<\/td>\n<td>~170\u2013230%<\/td>\n<td>\ubcf4\ud1b5<\/td>\n<\/tr>\n<tr>\n<td>\uc18c\ud504\ud2b8 \uc2a4\ud0c0\ud130<\/td>\n<td>200\u2013300%<\/td>\n<td>\ubcf4\ud1b5<\/td>\n<\/tr>\n<tr>\n<td>VFD<\/td>\n<td>120\u2013150%<\/td>\n<td>\ucd5c\uc18c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uacbd\ud5d8 \ubc95\uce59: \uac00\uc7a5 \ud070 \ubaa8\ud130\uac00 \ubcc0\uc555\uae30 \uc815\uaca9\uc758 25%\ub97c \ucd08\uacfc\ud558\ub294 \uacbd\uc6b0, \uc804\uc555 \uac15\ud558 \uacc4\uc0b0\uc744 \ud1b5\ud574 \uc2dc\uc791 \uc2dc\ub098\ub9ac\uc624\ub97c \uba85\ud655\ud788 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. 50%\ub97c \ucd08\uacfc\ud558\uba74 \uc815\uaca9\uc744 \ub192\uc774\uac70\ub098 \uc2dc\uc791 \ubc29\ubc95\uc744 \ubcc0\uacbd\ud574\uc57c \ud569\ub2c8\ub2e4 \u2014 \uc0b0\uc220\uc740 IEC 60076-7 \ubc0f IEEE C57.12.00\uc758 \uc8fc\uae30\uc801 \ubc0f \ub2e8\uc2dc\uac04 \ubd80\ud558\uc5d0 \ub300\ud55c \uc9c0\uce68\uc5d0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10901\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/How-to-size-a-transformer-scientifically.webp\" alt=\"\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"worked-examples\">\uc0b0\uc5c5\ubcc4 \uc791\uc5c5 \uc608<\/h2>\n<p>\uc608 A \u2013 \uc12c\uc720 \uacf5\uc7a5. \uc5f0\uacb0 \ubd80\ud558 = 12\uac1c\uc758 \uc9c1\uae30 (\uac01 15 kW (PF = 0.83)) + 3\uac1c\uc758 \uc555\ucd95\uae30 (\uac01 30 kW (PF = 0.85)) + 40 kW \uc870\uba85 (PF = 0.95) + 20 kW HVAC. \uc6b4\uc804 kVA = 12 * 18.1 + 3 * 35.3 + 42 + 21 = ~ 345 kVA. \uc218\uc694 \uacc4\uc218 = 0.9 \ubc0f \uc6b0\uc5f0 (CF) = 0.8 -&gt; 345 * 0.9 * 0.8 = 248 kVA. 15%\uc758 \uc131\uc7a5\uc73c\ub85c \ud544\uc694\ud55c \uc804\ub825 \uc815\uaca9 = 285 kVA \ub610\ub294 \ud45c\uc900 \uc815\uaca9 315 kVA. \uac00\uc7a5 \ud070 \ub2e8\uc77c \ubd80\ud558\ub294 35 kVA (\uc815\uaca9\uc758 \uc57d 11%)\ub85c \uc2dc\uc791 \uc2dc \uc81c\ud55c\uc774 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc608 B \u2013 \uc2dd\ud488 \uac00\uacf5 \uacf5\uc7a5. \ub0c9\uac01 \uc555\ucd95\uae30 (100 kW) (6\u00d7 \uc2dc\uc791\/ PF = 0.85), \uae30\uacc4 (60 kW), CIP \ud38c\ud504 (30 kW) \ubc0f \uc870\uba85 (25 kW). \uc6b4\uc804 kVA = 118 + 71 + 35 + 26 = 250 kVA \ubc0f \uc6b0\uc5f0 \uacc4\uc218 (CF) = 0.75 -&gt; \ud544\uc694\ud55c \uc804\ub825 = 188 kVA. \uc2dc\uc791 \uc2dc \ub0c9\uac01 \uc555\ucd95\uae30\ub294 \uc21c\uac04\uc801\uc73c\ub85c \uc57d 6 x 118 = 708 kVA\uc758 \uc804\ub825 \uc218\uc694\ub97c \uac00\uc9d1\ub2c8\ub2e4. \uc124\uacc4 \uc870\uac74: 188 + (708 \u2013 118) = ~ 778 kVA \uc21c\uac04\uc801\uc73c\ub85c. 315 kVA \uc720\ub2db\uc740 \uc774\ub97c \uacac\ub51c \uc218 \uc5c6\uc73c\uba70, \uc2e4\uc6a9\uc801\uc778 \ud574\uacb0\ucc45\uc740 630 kVA \uc720\ub2db \ubc0f\/\ub610\ub294 \uc18c\ud504\ud2b8 \uc2a4\ud0c0\ud305\uc785\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\uc2dc\ub098\ub9ac\uc624<\/th>\n<th>\ub2e8\uc21c kW \ud569\uacc4<\/th>\n<th>\uacfc\ud559\uc801 kVA \uacb0\uacfc<\/th>\n<th>\ucc28\uc774<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc12c\uc720 \uacf5\uc7a5 (\uc608\uc2dc A)<\/td>\n<td>270 kVA<\/td>\n<td>315 kVA<\/td>\n<td>+17%<\/td>\n<\/tr>\n<tr>\n<td>\uc2dd\ud488 \uacf5\uc7a5 (\uc608\uc2dc B)<\/td>\n<td>250 kVA<\/td>\n<td>630 kVA<\/td>\n<td>+152%<\/td>\n<\/tr>\n<tr>\n<td>\ucc3d\uace0 \uc870\uba85 + HVAC<\/td>\n<td>150 kVA<\/td>\n<td>160 kVA<\/td>\n<td>+7%<\/td>\n<\/tr>\n<tr>\n<td>50 kW \uc120\ubc18\uc774 \uc788\ub294 \uae30\uacc4 \uacf5\uc7a5<\/td>\n<td>300 kVA<\/td>\n<td>400 kVA<\/td>\n<td>+33%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\ud328\ud134\uc740 \uba85\ud655\ud569\ub2c8\ub2e4: \ubaa8\ud130\uac00 \ub9ce\uace0 \uac00\uc7a5 \ud070 \ubaa8\ud130\uac00 \ud074\uc218\ub85d \uc21c\uc9c4\ud55c \ud06c\uae30 \uc870\uc815\uacfc \uacfc\ud559\uc801 \ud06c\uae30 \uc870\uc815 \uc0ac\uc774\uc758 \ucc28\uc774\uac00 \ucee4\uc9d1\ub2c8\ub2e4. \uacfc\ud559\uc801 \ubc29\ubc95\uc740 \ubaa8\ub4e0 \uc22b\uc790\ub97c \ubd80\ud480\ub9ac\ub294 \uac83\uc774 \uc544\ub2c8\ub77c, \ub54c\ub85c\ub294 \uc6a9\ub7c9\uc774\uace0 \ub54c\ub85c\ub294 \uae30\ub3d9 \uc804\ub958\uc778 \uc9c4\uc815\ud55c \uc81c\uc57d\uc744 \ucc3e\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h2 id=\"standard-ratings\">\ud45c\uc900 \uc815\uaca9 \ubc0f \ud06c\uae30 \uc870\uc815 \ud45c<\/h2>\n<p>\uc124\uacc4 \uc218\uc694\ub97c \uacc4\uc0b0\ud55c \ud6c4, \ub2e4\uc74c \ud45c\uc900 IEC 60076-1 \uc815\uaca9\uc744 \uc120\ud0dd\ud569\ub2c8\ub2e4. \ud45c\uc900 kVA \uac12\uc5d0\ub294 25, 50, 100, 160, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500 \ubc0f 3150\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4. \ub9de\ucda4\ud615 \uc815\uaca9\ub3c4 \uc874\uc7ac\ud558\uc9c0\ub9cc 15\u201330% \ub354 \ube44\uc2f8\uace0 \ucf54\uc5b4\uc640 \ud0f1\ud06c\uac00 \ube44\ud45c\uc900\uc774\uae30 \ub54c\ubb38\uc5d0 \ub9ac\ub4dc \ud0c0\uc784\uc774 \uae38\uc5b4\uc9d1\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\uc5f0\uacb0\ub41c \uc7a5\ube44 (kVA, \ub2e4\uc591\ud654\ub428)<\/th>\n<th>\uc131\uc7a5 \ucd94\uac00 (15%)<\/th>\n<th>\uad8c\uc7a5 \uc815\uaca9<\/th>\n<th>\uc77c\ubc18 \uac00\uaca9 \ubc94\uc704<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\ucd5c\ub300 85<\/td>\n<td>98<\/td>\n<td>100<\/td>\n<td>$2,500\u2013$6,000<\/td>\n<\/tr>\n<tr>\n<td>86\u2013135<\/td>\n<td>155<\/td>\n<td>160<\/td>\n<td>$3,500\u2013$8,000<\/td>\n<\/tr>\n<tr>\n<td>136\u2013215<\/td>\n<td>247<\/td>\n<td>250<\/td>\n<td>$4,500\u2013$11,000<\/td>\n<\/tr>\n<tr>\n<td>216\u2013270<\/td>\n<td>310<\/td>\n<td>315<\/td>\n<td>$6,000\u2013$13,000<\/td>\n<\/tr>\n<tr>\n<td>271\u2013430<\/td>\n<td>495<\/td>\n<td>500<\/td>\n<td>$8,000\u2013$16,000<\/td>\n<\/tr>\n<tr>\n<td>431\u2013545<\/td>\n<td>627<\/td>\n<td>630<\/td>\n<td>$10,000\u2013$20,000<\/td>\n<\/tr>\n<tr>\n<td>546\u2013870<\/td>\n<td>1,000<\/td>\n<td>1,000<\/td>\n<td>$15,000\u2013$32,000<\/td>\n<\/tr>\n<tr>\n<td>871\u20131,090<\/td>\n<td>1,254<\/td>\n<td>1,250<\/td>\n<td>$20,000\u2013$40,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uac00\uaca9\uc740 \uc911\uad6d FOB \uae30\uc900\uc73c\ub85c \uc624\uc77c \uce68\uc9c0 \uc720\ub2db\uc5d0 \ub300\ud55c \uc9c0\ud45c\uc774\uba70, \uc0ac\uc591, \ube0c\ub79c\ub4dc \ubc0f \uc9c0\uc5ed\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4. \ud55c \ub4f1\uae09\uc744 \uc62c\ub9ac\ub294 \ube44\uc6a9 \u2014 \uc608\ub97c \ub4e4\uc5b4 500\uc5d0\uc11c 630 kVA\ub85c \u2014 \uc77c\ubc18\uc801\uc73c\ub85c \uc720\ub2db \uac00\uaca9\uc758 15\u201325%\uc774\uba70, \uacfc\uc18c \uc124\uacc4\ub41c \ubcc0\uc555\uae30\uc758 \uace0\uc7a5 \ube44\uc6a9\uc740 100% \ubc0f \ub2e4\uc6b4\ud0c0\uc784\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4. \uc5ec\uc720 \uacf5\uac04\uc740 \uc800\ub834\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uc9c0\uc6d0 \uc0ac\uc591: \uc804\uc555, \uc190\uc2e4, \uc778\ud074\ub85c\uc800<\/h2>\n<p>kVA\uac00 \uc124\uc815\ub418\uba74 \ub098\uba38\uc9c0 \ub9e4\uac1c\ubcc0\uc218\ub294 \uc784\uc758\uc758 \ucd94\uce21\uc774 \uc544\ub2cc \uacfc\ud559\uc801\uc73c\ub85c \uacb0\uc815\ub429\ub2c8\ub2e4. \uace0\uac1d\uc758 \uc2dc\uc2a4\ud15c \uc124\uacc4\uc5d0\uc11c \uc804\uc555 \ube44\uc728\uc774 \uacb0\uc815\ub429\ub2c8\ub2e4: \uae30\ubcf8 \uc804\uc555\uc740 11, 22, 33 \ub610\ub294 35 kV(\uc989, \uc804\uae30\uac00 \uace0\uac1d\uc758 \uad6c\ub0b4\uc5d0 \ub4e4\uc5b4\uc624\ub294 \uc804\uc555)\uc774\uba70, \ubcf4\uc870 \uc804\uc555\uc740 400, 415 \ub610\ub294 480 V(\uc0ac\uc6a9 \uc804\uc555)\uc785\ub2c8\ub2e4. \ubca1\ud130 \uadf8\ub8f9\uc740 \uc811\uc9c0 \uc2dc\uc2a4\ud15c \ud328\ud134\uc5d0 \ub530\ub77c \ub2e4\ub974\uba70, \uc811\uc9c0\ub41c \uc2a4\ud0c0 \uc800\uc804\uc555 \uc0ac\uc6a9\uc744 \uc704\ud574 Dyn11\uc774\uc5b4\uc57c \ud558\uba70, \uc77c\ubc18\uc801\uc73c\ub85c Yd11(\uc804\uc555\uc774 \uc99d\uac00\ud558\ub294 \uacf3, \uc774\uc804 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc800\uc804\uc555 \uc804\ub958\uac00 5% \ubbf8\ub9cc) \ub610\ub294 Yd1\uc740 \ud574\ub2f9 \uace0\uc804\uc555 \uacbd\uc6b0\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4. \uc784\ud53c\ub358\uc2a4(uk%)\ub294 \uace0\uc7a5 \uc870\uc815\uc744 \uc5bb\uae30 \uc704\ud574 \uc0ac\uc6a9\ub429\ub2c8\ub2e4: 4%(\uc18c\ud615 \ubc30\uc804 \ubcc0\uc555\uae30\uc6a9), 5%\uc5d0\uc11c 6%(\uc804\ub825 \uc815\uaca9 630-1250 kVA\uc6a9), \uadf8\ub9ac\uace0 1250 kVA \uc774\uc0c1\uc758 \uc804\ub825 \uc815\uaca9 \ub610\ub294 \uadf8\ub9ac\ub4dc \ucf54\ub4dc\uc5d0\uc11c \uc694\uad6c\ud558\ub294 \ub300\ub85c \ub354 \ub192\uc740 \uac12\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc190\uc2e4\uc740 30\ub144 \ub3d9\uc548 \uc9c0\ubc30\uc801\uc778 \ube44\uc6a9\uc785\ub2c8\ub2e4. IEC 60076-1 \ud45c\uc900\uc5d0 \ub530\ub77c \ubcf4\uc7a5\ub41c \ubb34\ubd80\ud558 \uc190\uc2e4 \ubc0f \ubcf4\uc7a5\ub41c \ubd80\ud558 \uc190\uc2e4\uc744 \uba85\uc2dc\ud558\uace0 \uacbd\uc7c1\uc5c5\uccb4\uc640 \uc18c\uc720 \ucd1d \ube44\uc6a9\uc744 \ube44\uad50\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 1,000 kVA\uc758 \ube44\uc815\uc9c8 \ucf54\uc5b4 \ubcc0\uc555\uae30\uac00 600 W\uc758 \ubb34\ubd80\ud558 \uc190\uc2e4\uc744 \uc808\uc57d\ud558\uba74 \uc0c1\ub2f9\ud55c \uc591\uc758 \uc804\uae30\ub97c \uc808\uc57d\ud569\ub2c8\ub2e4(15\ub144 \ub3d9\uc548 0.1 USD\/kWh \uc694\uae08\uc73c\ub85c \uac70\uc758 $2,000) \uc774\ub294 \ucc28\uc774\ub97c \uc9c0\ubd88\ud558\ub294 \uac83\uc774 \ud569\ub9ac\uc801\uc785\ub2c8\ub2e4. \ub610\ud55c, \uc778\ud074\ub85c\uc800\ub294 \ud658\uacbd \uc870\uac74(IP \ub4f1\uae09)\uc5d0 \ub530\ub77c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4: \uac1c\ubc29 \uacf5\uae30\uc5d0\uc11c \uc624\uc77c \uce68\uc9c0\uc6a9 IP54, \uc2e4\ub0b4 \uac74\uc2dd \ud0c0\uc785\uc6a9 IP21\uc5d0\uc11c IP44, \uc138\ucc99 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc6a9 IP56.<\/p>\n<h2 id=\"brands-prices\">\uc815\uaca9\ubcc4 \ube0c\ub79c\ub4dc \ubc0f \uac00\uaca9 \ubc94\uc704<\/h2>\n<p>\ube0c\ub79c\ub4dc \uc120\ud0dd\uc740 \uae30\uc220 \uacc4\uc0b0 \uc704\uc758 \uc0c1\uc5c5\uc801 \uce35\uc785\ub2c8\ub2e4. \ub3d9\uc77c\ud55c \uacfc\ud559\uc801 \uc0ac\uc591\uc5d0 \ub300\ud574 \uac00\uaca9\uc740 \ube0c\ub79c\ub4dc \ud3ec\uc9c0\uc154\ub2dd\uacfc \ubb38\uc11c \ud488\uc9c8\uc5d0 \ub530\ub77c \ub450 \ubc30\uc5d0\uc11c \uc138 \ubc30\uae4c\uc9c0 \ucc28\uc774\uac00 \ub0a9\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\ube0c\ub79c\ub4dc<\/th>\n<th>\uac15\ub3c4<\/th>\n<th>250 kVA \uac00\uaca9<\/th>\n<th>630 kVA \uac00\uaca9<\/th>\n<th>1,250 kVA \uac00\uaca9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>ABB<\/td>\n<td>\uae00\ub85c\ubc8c \uc11c\ube44\uc2a4, \uc804\uccb4 \ubc94\uc704<\/td>\n<td>$12,000\u2013$20,000<\/td>\n<td>$22,000\u2013$38,000<\/td>\n<td>$38,000\u2013$60,000<\/td>\n<\/tr>\n<tr>\n<td>\uc9c0\uba58\uc2a4<\/td>\n<td>\ud6a8\uc728\uc131, \ub514\uc9c0\ud138 \ubaa8\ub2c8\ud130\ub9c1<\/td>\n<td>$12,000\u2013$22,000<\/td>\n<td>$24,000\u2013$40,000<\/td>\n<td>$40,000\u2013$65,000<\/td>\n<\/tr>\n<tr>\n<td>\uc288\ub098\uc774\ub354 \uc77c\ub809\ud2b8\ub9ad<\/td>\n<td>\ub4dc\ub77c\uc774 \ud0c0\uc785 \ubc0f LV \ud1b5\ud569<\/td>\n<td>$11,000\u2013$18,000<\/td>\n<td>$20,000\u2013$34,000<\/td>\n<td>$35,000\u2013$55,000<\/td>\n<\/tr>\n<tr>\n<td>\ud788\ud0c0\uce58 \uc5d0\ub108\uc9c0<\/td>\n<td>\uadf8\ub9ac\ub4dc \uc790\uc0b0, \uc804\ub825 \ubcc0\uc555\uae30<\/td>\n<td>$12,000\u2013$21,000<\/td>\n<td>$23,000\u2013$38,000<\/td>\n<td>$39,000\u2013$62,000<\/td>\n<\/tr>\n<tr>\n<td>\uc774\ud2bc<\/td>\n<td>\ubd81\ubbf8 \uaddc\uc815 \uc900\uc218<\/td>\n<td>$10,000\u2013$17,000<\/td>\n<td>$18,000\u2013$32,000<\/td>\n<td>$32,000\u2013$52,000<\/td>\n<\/tr>\n<tr>\n<td>CG \ud30c\uc6cc \/ TBEA<\/td>\n<td>\ubcfc\ub968 \uac00\uaca9 \ucc45\uc815<\/td>\n<td>$7,000\u2013$12,000<\/td>\n<td>$13,000\u2013$22,000<\/td>\n<td>$24,000\u2013$40,000<\/td>\n<\/tr>\n<tr>\n<td>\uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825<\/td>\n<td>IEC 60076, \uc2dc\ud5d8 \ubcf4\uace0\uc11c, \uad6c\ub9ac<\/td>\n<td>$6,000\u2013$11,000<\/td>\n<td>$11,000\u2013$20,000<\/td>\n<td>$20,000\u2013$36,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc704\uc5d0\uc11c \uc5b8\uae09\ud55c \uae00\ub85c\ubc8c \uae30\uc5c5\ub4e4\uc740 \uc5d0\ub108\uc9c0 \ubd80\ubb38 \ubc0f \uae30\ud0c0 \uc911\uc694\ud55c \ubd84\uc57c\uc5d0 \ub300\ud55c \uc218\ub144\uac04\uc758 \uc791\uc5c5\uacfc \uae30\uc5ec\ub97c \ud1b5\ud574 \uadf8\ub4e4\uc758 \uc9c0\uc704\ub97c \uc5bb\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub3d9\uc77c\ud55c \uc811\uadfc \ubc29\uc2dd\uc740 \uc774\ubbf8 \uacfc\ud559\uc801 \uc0ac\uc591\uc73c\ub85c \ubcf4\ud638\ubc1b\uace0 \uc788\ub294 \uc0b0\uc5c5 \uacf5\uc7a5, \ucc3d\uace0 \ubc0f \uc7ac\uc0dd \uc5d0\ub108\uc9c0 \uc124\uce58\uc5d0\ub294 \uc801\uc6a9\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825\uc740 10 kVA\uc5d0\uc11c 100 MVA \ubc94\uc704\uc758 IEC 60076 \uc778\uc99d \ubcc0\uc555\uae30\ub97c \uc0dd\uc0b0\ud558\uba70, \uad6c\ub9ac \uad8c\uc120 \ubcc0\uc555\uae30\ub97c \ud45c\uc900 \uc81c\ud488\uc73c\ub85c \uc81c\uacf5\ud558\uba70, \ubaa8\ub4e0 \ud488\ubaa9\uc740 \ubcc0\uc555\uae30\uc5d0 \ud544\uc694\ud55c \uc190\uc2e4 \ubc0f \ub9e4\uac1c\ubcc0\uc218\uac00 \uc81c\uacf5\ub41c \ud488\ubaa9\uacfc \uc77c\uce58\ud568\uc744 \uc99d\uba85\ud558\ub294 \ubcf4\uace0\uc11c\uc640 \ud568\uaed8 \uc81c\uacf5\ub429\ub2c8\ub2e4. \uacc4\uc0b0\uc774 \ud2b9\uc815 \uc815\uaca9\uc744 \ubcf4\uc5ec\uc8fc\ub294 \ubcc0\uc555\uae30\uc758 \uacbd\uc6b0, \uacf5\uae09\uc5c5\uccb4\uac00 \uc218\ud589\ud55c \uc791\uc5c5 \uc218\uc900\uc744 \uc27d\uac8c \ud3c9\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uace0\uac1d\uc5d0\uac8c \ube0c\ub85c\uc154\uc5d0 \uc801\ud78c \ub0b4\uc6a9\uc744 \uc2e0\ub8b0\ud558\ub77c\uace0 \uc694\uad6c\ud558\uae30\ubcf4\ub2e4\ub294, \uc218\ube44\uc548\uc740 \uc790\uc2e0\uc758 \uc8fc\uc7a5\uc744 \uc785\uc99d\ud558\ub294 \uc99d\uac70\ub97c \uacf5\uc720\ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"selection-formula\">\uc644\uc804 \uc120\ud0dd \uacf5\uc2dd \ubc0f \uccb4\ud06c\ub9ac\uc2a4\ud2b8<\/h2>\n<p>\uc694\uc57d\ud558\uc790\uba74, \uc7a5\ube44 \uc804\ub825 \uc120\ud0dd \uacf5\uc2dd\uc744 \uae30\ubc18\uc73c\ub85c \ubcc0\uc555\uae30 \ud06c\uae30\ub97c \uacc4\uc0b0\ud558\ub294 \uacf5\uc2dd\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<p>\uc124\uacc4 kVA \uc124\uc815 = \ud569\uacc4 (\ubd80\ud558_kVA \u00d7 \uc218\uc694 \uacc4\uc218) \u00d7 \uc6b0\uc5f0 \uacc4\uc218 \u00d7 (1 + \uc131\uc7a5 \uc5ec\uc720)<\/p>\n<p>\uadf8\ub9ac\uace0 \ub2ec\uc131 \uac00\ub2a5\ud55c \ubd80\ud558\uc758 \ub450 \uac00\uc9c0 \uae30\uc900: \uc9c0\uc18d \ubd80\ud558 \u2264 \uc815\uaca9 (\uc720\uc555\/\uac74\uc870) 80\u201390%, \uadf8\ub9ac\uace0 \uc2dc\uc791 \uacfc\ub3c4 \ud604\uc0c1\uc740 IEC 60076-7\uc5d0 \ub530\ub77c \uc7a5\uce58\uc758 \ub2e8\uae30 \uc6a9\ub7c9 \ud55c\ub3c4 \ub0b4\uc5d0\uc11c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uccb4\ud06c\ub9ac\uc2a4\ud2b8\ub294 \ub2e4\uc74c \uc791\uc5c5\uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4:<\/p>\n<p>kW, PF \ubc0f \uc815\uaca9 \uc804\ub958 \ub9e4\uac1c\ubcc0\uc218\ub97c \uac00\uc9c4 \uae30\uacc4 \ubaa9\ub85d\uc744 \uc791\uc131\ud569\ub2c8\ub2e4.<br \/>\n\uac01 \uc7a5\uce58\uc5d0 \ub300\ud574 kVA\ub85c \ubcc0\ud658\ud558\uace0 \ud53c\ub354\ubcc4\ub85c \ubd84\ub958\ud569\ub2c8\ub2e4.<br \/>\n\uadf8\ub8f9\ubcc4\ub85c \uc218\uc694 \ubc0f \uc6b0\uc5f0 \ud328\ud0a4\uc9c0\ub97c \uc801\uc6a9\ud569\ub2c8\ub2e4.<br \/>\n\ubaa8\ud130\uc758 \ucd5c\ub300 \uc2dc\uc791 \uc218\uc694\ub97c \uc815\uaca9\uacfc \ube44\uad50\ud569\ub2c8\ub2e4.<br \/>\n10\u201320% \uc131\uc7a5 \uc5ec\uc720\ub97c \ucd94\uac00\ud558\uace0 \ud45c\uc900 \uc815\uaca9\uc73c\ub85c \ubc18\uc62c\ub9bc\ud569\ub2c8\ub2e4.<br \/>\n\uc804\uc555, \ubca1\ud130 \uadf8\ub8f9, \uc784\ud53c\ub358\uc2a4, \uc190\uc2e4 \ubc0f \uc778\ud074\ub85c\uc800\ub97c \uc9c0\uc815\ud569\ub2c8\ub2e4.<br \/>\n\uc131\ub2a5 \ubc0f TCO \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \uc785\ucc30\uc790\ub97c \ube44\uad50\ud569\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10900\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/Load-Types-Starting-current-Buyer-checklist.webp\" alt=\"\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"faq\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h3>\uc7a5\ube44\uc758 kW \uc815\uaca9\uc5d0\uc11c \ubcc0\uc555\uae30\ub97c \uc5b4\ub5bb\uac8c \ud06c\uae30 \uc870\uc815\ud558\ub098\uc694?<\/h3>\n<p>\uac01 \ubd80\ud558\uc758 kW\ub294 \uc804\ub825 \uacc4\uc218\ub85c \ub098\ub204\uc5b4 kVA\ub85c \ubcc0\ud658\ud55c \ud6c4 \ud569\uc0b0\ud558\uc5ec \ucd1d\ub7c9\uc744 \uad6c\ud558\uace0, \uc218\uc694 \uacc4\uc218(\ub300\ubd80\ubd84\uc758 \uae30\uacc4\uc5d0 \ub300\ud574 \uc57d 0.9)\uc640 \uc6b0\uc5f0 \uacc4\uc218(0.7\uc5d0\uc11c 0.85 \uc0ac\uc774)\ub97c \uc801\uc6a9\ud574\uc57c \ud558\uba70, \ucd1d\ub7c9\uc758 \uc57d 10-20% \uc131\uc7a5\uc744 \uace0\ub824\ud558\uace0 \ub2e4\uc74c \ud45c\uc900 \uc815\uaca9\uc73c\ub85c \ubc18\uc62c\ub9bc\ud574\uc57c \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, PF\uac00 0.85\uc778 180 kW\ub294 212 kVA\uc5d0 \ud574\ub2f9\ud558\uba70, 0.85\uc758 \uc6b0\uc5f0\uacfc 15% \uc131\uc7a5\uc744 \uc801\uc6a9\ud558\uba74 \uc57d 207 kVA\uc758 \uc124\uacc4 \uc218\uc694\uac00 \ub098\uc624\uba70, \uc774\ub294 250 kVA \uae30\uacc4\ub97c \uc0ac\uc6a9\ud574\uc57c \ud568\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n<h3>\ubd80\ud558\uc5d0\uc11c \ubcc0\uc555\uae30 \ud06c\uae30\ub97c \uc815\ud558\ub294 \uacbd\ud5d8 \ubc95\uce59\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n<p>\uc77c\ubc18\uc801\uc778 \uccab \ubc88\uc9f8 \uaddc\uce59\uc740 \ubcc0\uc555\uae30\uac00 \uc608\uc0c1 \ucd5c\ub300 kW \uc218\uc694\uc758 1.2\u20131.5\ubc30\ub85c \uc815\uaca9\ub418\uc5b4\uc57c \ud55c\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \ub2e8\uc9c0 \uc120\ubcc4 \ub3c4\uad6c\uc77c \ubfd0\uc785\ub2c8\ub2e4. \ubaa8\ud130\uac00 \ud06c\uac70\ub098, \uc804\ub825 \uacc4\uc218\uac00 \ub0ae\uac70\ub098, \uace0\uc870\ud30c\uac00 \uc874\uc7ac\ud558\ub294 \uacbd\uc6b0 \uacfc\ud559\uc801 \ubc29\ubc95\uc774 \ud56d\uc0c1 \uc2b9\ub9ac\ud569\ub2c8\ub2e4 \u2014 \ucd5c\uc885 \uacb0\uc815\uc5d0\ub294 \uc704\uc758 \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud558\uace0 \uaddc\uce59\uc740 \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/p>\n<h3>\ubcc0\uc555\uae30 \uc815\uaca9\uc774 \ub0b4 \uc7a5\ube44\uc758 \ud569\uacc4\ubcf4\ub2e4 \ud070 \uc774\uc720\ub294 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n<p>\uc138 \uac00\uc9c0 \uc774\uc720: \uc804\ub825 \uacc4\uc218(kVA &gt; kW), \uae30\ub3d9 \uc804\ub958(100 kW \ubaa8\ud130\ub294 \uba87 \ucd08 \ub3d9\uc548 600+ kVA\ub97c \uc694\uad6c\ud560 \uc218 \uc788\uc74c), \uadf8\ub9ac\uace0 \ubbf8\ub798 \uc131\uc7a5(\ud56d\uc0c1 \ucd94\uac00\ud574\uc57c \ud568). \uc7a5\ube44\uac00 \ub300\ud615 DOL \ubaa8\ud130\ub85c 0.8 PF\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 \uacbd\uc6b0, \uc21c\uc9c4\ud55c kW \ud569\uacc4\ubcf4\ub2e4 25\u201360% \ub192\uc740 \uc815\uaca9\uc740 \uc815\uc0c1\uc785\ub2c8\ub2e4 \u2014 \uc774 \uac00\uc774\ub4dc\uc758 \uc2dd\ud488 \uacf5\uc7a5 \uc608\uc2dc\ub294 152%\uac00 \ub354 \ud544\uc694\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\ubbf8\ub798 \ud655\uc7a5\uc744 \uc704\ud574 \ubcc0\uc555\uae30\ub97c \uacfc\ub300 \uc124\uacc4\ud560 \uc218 \uc788\ub098\uc694?<\/h3>\n<p>\ub124, \uadf8\ub9ac\uace0 \ubcf4\ud1b5 \ud604\uba85\ud569\ub2c8\ub2e4 \u2014 \ud558\uc9c0\ub9cc \ud569\ub9ac\uc801\uc778 \ubc94\uc704 \ub0b4\uc5d0\uc11c\ub9cc. 10\u201320%\uc758 \uc5ec\uc720\ub294 \ub2e8\uacc4\ub9c8\ub2e4 15\u201325% \ub354 \ube44\uc6a9\uc774 \ub4e4\uace0, 24\/7 \uc6b4\uc601\ub418\ub294 \ubb34\ubd80\ud558 \uc190\uc2e4\uc744 \uc57d\uac04 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4. \uc57d 40% \uc774\uc0c1\uc73c\ub85c \uacfc\ub300 \uc124\uacc4\ud558\uba74 \uc790\ubcf8\uacfc \uc5d0\ub108\uc9c0\ub97c \ub0ad\ube44\ud558\uac8c \ub418\uba70, \ubd80\ud558\uac00 2\u20133\ub144 \ub0b4\uc5d0 \ub3c4\ucc29\ud560 \uac83\uc774\ub77c\uace0 \ud655\uc2e0\ud558\uc9c0 \uc54a\ub294 \ud55c \uadf8\ub807\uc2b5\ub2c8\ub2e4. \uacfc\ud559\uc801 \ub2f5\ubcc0: \uc5ec\uc720\ub97c \uc2e4\uc81c \ud655\uc7a5 \uacc4\ud68d\uc5d0 \ub9de\ucd94\uc2ed\uc2dc\uc624.<\/p>\n<h3>\ubcc0\uc555\uae30 \uc815\uaca9\uc744 \ud55c \ub2e8\uacc4 \uc5c5\uadf8\ub808\uc774\ub4dc\ud558\ub294 \ub370 \uc5bc\ub9c8\ub098 \ube44\uc6a9\uc774 \ub4dc\ub098\uc694?<\/h3>\n<p>500\uc5d0\uc11c 630 kVA\ub85c \uc774\ub3d9\ud560 \ub54c \uc77c\ubc18\uc801\uc73c\ub85c $2,000\u2013$4,000(\uc57d 15\u201325%)\uc758 \ube44\uc6a9\uc774 \ucd94\uac00\ub429\ub2c8\ub2e4; 1,000\uc5d0\uc11c 1,250 kVA\ub85c \uc774\ub3d9\ud560 \ub54c\ub294 $4,000\u2013$8,000\uc774 \ucd94\uac00\ub429\ub2c8\ub2e4. \uc774\uc5d0 \ube44\ud574 \uc11c\ube44\uc2a4 \uc911\uc5d0 \uace0\uc7a5\ub098\ub294 \uacfc\uc18c \uc124\uacc4\ub41c \ubcc0\uc555\uae30\ub294 \uad50\uccb4 \ube44\uc6a9\uc73c\ub85c $8,000\u2013$30,000\uacfc \uc0dd\uc0b0 \uc911\ub2e8 \uc2dc\uac04\uc744 \ucd08\ub798\ud569\ub2c8\ub2e4. \uc5c5\uadf8\ub808\uc774\ub4dc \ud504\ub9ac\ubbf8\uc5c4\uc740 \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c \uac00\uc7a5 \uc800\ub834\ud55c \ubcf4\ud5d8\uc785\ub2c8\ub2e4.<\/p>\n<h2 id=\"references\">\ucc38\uace0 \ubb38\ud5cc<\/h2>\n<ul>\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/200\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60076-1: \uc804\ub825 \ubcc0\uc555\uae30 \u2014 \uc77c\ubc18<\/a> \u2014 \uc815\uaca9, \ud5c8\uc6a9 \uc624\ucc28 \ubc0f \uc815\uae30 \ud14c\uc2a4\ud2b8\uc5d0 \ub300\ud55c \ud45c\uc900.<\/li>\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/57088\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60076-7: \uc624\uc77c \uce68\uc9c0 \uc804\ub825 \ubcc0\uc555\uae30\ub97c \uc704\ud55c \ud558\uc911 \uac00\uc774\ub4dc<\/a> \u2014 \uae30\ub3d9 \uacfc\ub3c4 \ud604\uc0c1\uc5d0 \ub300\ud55c \ub2e8\uc2dc\uac04 \ubc0f \uc8fc\uae30\uc801 \ud558\uc911 \ud55c\uacc4.<\/li>\n<li><a href=\"https:\/\/standards.ieee.org\/ieee\/C57.12.00\/6735\/\" rel=\"nofollow noopener\" target=\"_blank\">IEEE C57.12.00: \uc561\uccb4 \uce68\uc9c0 \ubcc0\uc555\uae30\uc5d0 \ub300\ud55c \uc77c\ubc18 \uc694\uad6c \uc0ac\ud56d<\/a> \u2014 \ubd81\ubbf8 \uc815\uaca9 \ubc0f \ud14c\uc2a4\ud2b8 \ud504\ub808\uc784\uc6cc\ud06c.<\/li>\n<li><a href=\"https:\/\/www.electrical4u.com\/transformer-sizing\/\" rel=\"nofollow noopener\" target=\"_blank\">Electrical4U \u2014 \ubcc0\uc555\uae30 \ud06c\uae30 \uc870\uc815<\/a> \u2014 \ud06c\uae30 \uc870\uc815 \uc608\uc81c \ubc0f \uc218\uc694 \uacc4\uc218 \uc548\ub0b4.<\/li>\n<li><a href=\"https:\/\/www.eaton.com\/us\/en-us\/products\/transformers\/transformer-consultant.html\" rel=\"nofollow noopener\" target=\"_blank\">Eaton \u2014 \ubcc0\uc555\uae30 \ucee8\uc124\ud134\ud2b8<\/a> \u2014 kVA \uacc4\uc0b0 \ubc0f \uc120\ud0dd\uc744 \uc704\ud55c \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ub3c4\uad6c.<\/li>\n<li><a href=\"https:\/\/www.fluke.com\/en-us\/learn\/blog\/power-quality\/power-factor\" rel=\"nofollow noopener\" target=\"_blank\">Fluke \u2014 \uc804\ub825 \uacc4\uc218 \uc774\ud574\ud558\uae30<\/a> \u2014 \uc804\ub825 \uacc4\uc218 \ubc0f \uc218\uc694 \uce21\uc815\uc744 \uc704\ud55c \uc2e4\uc6a9\uc801\uc778 \ucc38\uace0 \uc790\ub8cc.<\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Demand_factor\" rel=\"nofollow noopener\" target=\"_blank\">Wikipedia \u2014 \uc218\uc694 \uacc4\uc218<\/a> \u2014 \uc218\uc694, \ub2e4\uc591\uc131 \ubc0f \uc6b0\uc5f0 \uacc4\uc218\uc758 \uc815\uc758 \ubc0f \uc801\uc6a9.<\/li>\n<\/ul>\n<h2 id=\"conclusion\">\uacb0\ub860<\/h2>\n<p>\uc7a5\ube44 \uc804\ub825\uc744 \uae30\ubc18\uc73c\ub85c \ud55c \uacfc\ud559\uc801 \ubcc0\uc555\uae30 \uc120\ud0dd\uc740 \ub2e8\uc21c\ud788 kW\ub97c \uc62c\ubc14\ub978 \uc804\ub825 \uacc4\uc218\ub85c kVA\ub85c \ubcc0\ud658\ud558\ub294 \uaddc\uc728\uc774\uba70, \uc218\uc694\uc640 \uc6b0\uc5f0\uc744 \uace0\ub824\ud558\uace0, \ubaa8\ud130 \uae30\ub3d9 \uacfc\ub3c4 \ud604\uc0c1\uc744 \uc874\uc911\ud558\uba70, \uc815\uc9c1\ud55c \uc131\uc7a5 \uc5ec\uc720\ub97c \ucd94\uac00\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc0b0\uc220\uc740 \uc5b4\ub835\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4 \u2014 \uadf8\ub7ec\ub098 \uc5b4\ub5a4 \ud56d\ubaa9\uc744 \uc0dd\ub7b5\ud558\uba74 \uae30\ub3d9 \ud558\uc911\uc5d0\uc11c \uc2e4\ud328\ud558\uac70\ub098 \uc720\ud734 \uc6a9\ub7c9\uc5d0 \uc790\ubcf8\uc744 \ub0ad\ube44\ud558\ub294 \uc7a5\uce58\uac00 \uc0dd\uc131\ub429\ub2c8\ub2e4. \uc2dd\ud488 \uacf5\uc7a5 \uc608\uc2dc\ub294 \ub2e8\uc21c\ud55c 250 kVA \ucd94\uc815\uce58\uc640 \uc62c\ubc14\ub978 630 kVA\uc758 \ube44\uc6a9\uc744 \uc785\uc99d\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n<ul>\n<li>\ud56d\uc0c1 \uc2e4\uc81c \uc804\ub825 \uacc4\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec kW\ub97c kVA\ub85c \ubcc0\ud658\ud558\uc2ed\uc2dc\uc624 \u2014 kW\ub97c \uc9c1\uc811 \ud569\uc0b0\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/li>\n<li>\uc218\uc694 \ubc0f \uc6b0\uc5f0 \uacc4\uc218\ub97c \uc801\uc6a9\ud558\uace0, \uac00\uc7a5 \ud070 \ubaa8\ud130\uc758 \uae30\ub3d9 \uc218\uc694\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>10\u201320%\uc758 \uc131\uc7a5\uc744 \ucd94\uac00\ud558\uace0 IEC 60076 \ud45c\uc900 \uc815\uaca9\uc73c\ub85c \ubc18\uc62c\ub9bc\ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>\uc9c0\uc815\ub41c \uc190\uc2e4 \ubc0f \uc784\ud53c\ub358\uc2a4\uac00 \uac80\uc99d\ub418\ub3c4\ub85d \uc218\uc694 \uacf5\uc7a5 \ud14c\uc2a4\ud2b8 \ubcf4\uace0\uc11c\ub97c \uc694\uccad\ud558\uc2ed\uc2dc\uc624.<\/li>\n<\/ul>\n<p>\uc7a5\ube44 \uc804\ub825 \uacc4\uc0b0\uc774 \uc644\ub8cc\ub418\uace0 \uc815\uaca9\uc774 \uc124\uc815\ub418\uba74, <a href=\"https:\/\/subian-electric.com\/ko\/\">\uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825<\/a> \uc0ac\uc591\uc5d0 \ub530\ub77c 10 kVA\uc5d0\uc11c 100 MVA\uae4c\uc9c0\uc758 IEC 60076 \uc778\uc99d \ubcc0\uc555\uae30\ub97c \uacac\uc801\ud560 \uac83\uc785\ub2c8\ub2e4 \u2014 \uc774\ub984\ud310\uc758 \uc22b\uc790\uac00 \uadc0\ud558\uac00 \ud06c\uae30\ub97c \uc870\uc815\ud55c \uc22b\uc790\uc640 \uc77c\uce58\ud558\ub3c4\ub85d \uacf5\uc7a5 \uc2dc\ud5d8 \ubcf4\uace0\uc11c\uac00 \ucca8\ubd80\ub429\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>A textile factory in Vietnam was about to put into operation twelve weaving machines with 15 kW ratting each. The conclusion of the owner was pretty simple: twelve machines multiplied by 15 kW gives 180 kW, consequently, a 200 kVA transformer is needed. At that point, the electrical contractor cancelled the order. In reality, each [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":10899,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[77],"tags":[],"class_list":["post-10898","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\/10898","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=10898"}],"version-history":[{"count":2,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/10898\/revisions"}],"predecessor-version":[{"id":11007,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/10898\/revisions\/11007"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media\/10899"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media?parent=10898"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/categories?post=10898"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/tags?post=10898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}