{"id":10559,"date":"2026-08-29T23:43:00","date_gmt":"2026-08-29T15:43:00","guid":{"rendered":"https:\/\/q8bbzjnpm5.wpdns.site\/?p=10559"},"modified":"2026-08-29T23:43:00","modified_gmt":"2026-08-29T15:43:00","slug":"how-to-calculate-kva-for-three-phase-power-subian-electric-has-the-answer","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/ko\/news\/how-to-calculate-kva-for-three-phase-power-subian-electric-has-the-answer\/","title":{"rendered":"\uc0bc\uc0c1 \uc804\ub825\uc758 kVA\ub97c \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95\uc740 \ubb34\uc5c7\uc778\uac00\uc694? Subian Electric\uac00 \ub2f5\ubcc0\ud569\ub2c8\ub2e4."},"content":{"rendered":"<p>\uc7a0\ube44\uc544\uc758 \uc591\uc870 \ud68c\uc0ac\ub294 \uc804\uae30 \uae30\uc220\uc790\ub85c\ubd80\ud130 630\uc774 \ud574\ub2f9 \uc720\ud615\uc758 \uc2dc\uc124\uc5d0 \ub300\ud55c \ud45c\uc900 \uc22b\uc790\ub77c\ub294 \uc815\ubcf4\ub97c \ubc1b\uc740 \ud6c4 \uc0c8\ub85c\uc6b4 \ubcd1\uc785 \uc2dc\uc124\uc744 \uc704\ud574 630 kVA\ub85c \ud3c9\uac00\ub41c \ubcc0\uc555\uae30\ub97c \uc870\ub2ec\ud588\uc2b5\ub2c8\ub2e4. \ubc18\ub144 \ud6c4, \uc774 \uc7a5\uce58\uac00 \ub9e4\uc77c \ub9e4\uc6b0 \ub728\uac81\uac8c \uc791\ub3d9\ud558\uace0 \uc788\uc73c\uba70, \uc555\ucd95\uae30 \ubc45\ud06c\uac00 \ud65c\uc131\ud654\ub420 \ub54c \uc804\uc555\uc774 \ub5a8\uc5b4\uc9c0\uace0, \uc720\ud2f8\ub9ac\ud2f0 \ud68c\uc0ac\uac00 \uc591\uc870\uc7a5\uc5d0 \uc218\uc694 \ubc8c\uae08\uc744 \ubd80\uacfc\ud558\uaca0\ub2e4\uace0 \uc704\ud611\ud558\ub294 \uac83\uc774 \ubc1c\uacac\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c\ub85c \uc801\uc808\ud558\uac8c \uce21\uc815\ub41c \uc2e4\uc81c \uc218\uc694 \uc218\uce58\ub294 380 kVA\uc600\uace0, \ud53c\ud06c\ub294 520 kVA\uc600\uc2b5\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 500 kVA \ub2e8\uc704\uac00 \uc774\uc0c1\uc801\uc774\uc5c8\uc744 \uac83\uc785\ub2c8\ub2e4. \ud68c\uc0ac\uac00 \uc800\uc9c0\ub978 \ud575\uc2ec \uc2e4\uc218\ub294 \uc2e4\uc81c 3\uc0c1 \ubd80\ud558\uc758 kVA\ub97c \uacc4\uc0b0\ud558\uc9c0 \uc54a\uace0 \ubcc0\uc555\uae30 \ub4f1\uae09\uc744 \uc8fc\ubb38\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774 \uae30\uc0ac\ub294 \uacf5\uc2dd\uc744 \ud1b5\ud574 3\uc0c1 \uc804\ub825\uc758 kVA\ub97c \uc815\ud655\ud558\uac8c \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95\uacfc \uc804\ub825 \uacc4\uc218, \uc2e4\uc81c \uc608\uc81c, \uc62c\ubc14\ub978 \ubcc0\uc555\uae30 \ub4f1\uae09\uc744 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc904 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<blockquote><p>\uc694\uc57d\ud558\uc790\uba74, 3\uc0c1 \uc804\ub825\uc5d0 \ub300\ud55c kVA \uacf5\uc2dd\uc740 kVA= (\u221a3 \u00d7 volts \u00d7 amps) \u00f7 1000\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 360 A \uc804\ub958\uac00 \ud750\ub974\ub294 400 V \ub77c\uc778\uc744 \uace0\ub824\ud574 \ubcf4\uc2ed\uc2dc\uc624. \uc774\ub294 (1.732 \u00d7 400 \u00d7 360) \u00f7 1000\uc774 \ub418\uc5b4 249.4 kVA\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c 250 kVA \ubcc0\uc555\uae30\ub97c \uc0ac\uc6a9\ud574\uc57c \ud558\uc9c0\ub9cc 10-20% \ucd94\uac00\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. kW\ub97c \uc0ac\uc6a9\ud558\uc5ec kVA\ub85c \ubcc0\ud658\ud558\ub824\uba74 \uc804\ub825 \uacc4\uc218\ub85c \ub098\ub204\uc5b4\uc57c \ud569\ub2c8\ub2e4: kVA = kW \u00f7 PF. PF = 0.85\uc77c \ub54c, 200 kW = 235 kVA\uc785\ub2c8\ub2e4. \ub2e8\uc0c1 \ubd84\ubc30\uc758 \uacbd\uc6b0, kVA = (volts \u00d7 amps) \u00f7 1000\uc785\ub2c8\ub2e4.<\/p><\/blockquote>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10560\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/How-To-Calculate-Kva-For-Three-Phase-Power-Subian-Electric-Has-The-Answer.webp\" alt=\"\uc0bc\uc0c1 \uc804\ub825\uc758 kVA \uacc4\uc0b0 \ubc29\ubc95: Subian Electric\uac00 \ub2f5\ubcc0\ud569\ub2c8\ub2e4\" width=\"1448\" height=\"1086\" \/><\/p>\n<hr \/>\n<h2 id=\"three-phase-formula\">3\uc0c1 kVA \uacf5\uc2dd<\/h2>\n<p>3\uc0c1 \uac89\ubcf4\uae30 \uc804\ub825 \ubc29\uc815\uc2dd\uc740 \ubcc0\uc555\uae30 \ud06c\uae30 \uc870\uc815\uc758 \ud575\uc2ec\uc785\ub2c8\ub2e4: kVA = (\u221a3 \u00d7 V_L-L \u00d7 I_L)\/1000.<\/p>\n<p>VL-L\uc740 \ubcfc\ud2b8 \ub2e8\uc704\uc758 \uc120\uac04 \uc804\uc555\uc744 \ub098\ud0c0\ub0b4\uace0 IL\uc740 \uc554\ud398\uc5b4 \ub2e8\uc704\uc758 \uc120 \uc804\ub958\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \u221a3\uc740 3\uc0c1 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc804\uc555\uacfc \uc704\uc0c1 \uc804\ub958\uac00 120\u00b0\ub9cc\ud07c \uc624\ud504\uc14b\ub418\ub294 \ubc29\uc815\uc2dd\uc758 \ud544\uc218 \ubd80\ubd84\uc785\ub2c8\ub2e4. \uc804\ub825\uc5d0 \ub300\ud55c \uac00\uc815\uc740 \ud544\uc694\ud55c \uc804\ub825\uc774 3\uc0c1 \uc804\ub825\uc758 \ud569\uacfc \uac19\ub2e4\ub294 \uc0ac\uc2e4\uc5d0 \uae30\ubc18\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud2b9\uc815 \uc804\ub958\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\ub294 3\uc0c1 \uc7a5\ube44\ub294 \ub2e8\uc0c1 \uc7a5\ube44\uc758 1.732\ubc30\uc5d0 \ud574\ub2f9\ud558\ub294 \uc804\ub825\uc744 \uc804\uc1a1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc608\ub97c \ub4e4\uc5b4, 200 \uc554\ud398\uc5b4\uc758 \uc804\ub958\ub97c \uac00\uc9c4 480 \ubcfc\ud2b8 3\uc0c1 \uacf5\uae09 \uc7a5\uce58\uc758 \uacbd\uc6b0, \ucd9c\ub825 \uc804\ub825\uc740 kVA = 1.732 \u00d7 480 \u00d7 200 \u00f71000 = 166.3 kVA\uc785\ub2c8\ub2e4. 15% \uc548\uc804 \uc5ec\uc720\ub97c \ucd94\uac00\ud55c \ud6c4, \uacb0\uacfc \uc218\uc694\ub294 191 kVA\uac00 \ub418\uba70, \uc774\ub294 200-kVA \ubcc0\uc555\uae30\ub85c \ubc18\uc62c\ub9bc\ub429\ub2c8\ub2e4. \ub2e4\ub978 \uacbd\uc6b0, \uc608\ub97c \ub4e4\uc5b4 \ubc1c\uc804\uae30\ub098 \uacf5\uae09 \uc7a5\uce58 \ud06c\uae30 \uc870\uc815\uc758 \uacbd\uc6b0\uc5d0\ub3c4 \uacc4\uc0b0\uc740 \ub2e4\ub974\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<h2 id=\"single-phase\">\ub2e8\uc0c1 \ub300 3\uc0c1 \uacc4\uc0b0<\/h2>\n<p>\uc774 \ub450 \uac00\uc9c0\ub97c \ud63c\ud569\ud558\uc5ec \uc5bb\uc740 \uacb0\uacfc\ub294 1,732\uc758 \uacc4\uc218\ub85c \uc798\ubabb\ub418\uc5b4 \ub450 \ub2e8\uacc4 \ub0ae\uc740 \ubcc0\uc555\uae30\ub97c \uad6c\ub9e4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e8\uc0c1 \uacf5\uc2dd\uc740 \u221a3 \uacc4\uc218\ub97c \uc0dd\ub7b5\ud569\ub2c8\ub2e4:<\/p>\n<p>kVA (\ub2e8\uc0c1) = (V \u00d7 A) \u00f7 1000<\/p>\n<table>\n<thead>\n<tr>\n<th>\uc2dc\uc2a4\ud15c<\/th>\n<th>\uacf5\uc2dd<\/th>\n<th>\uc608\uc2dc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\ub2e8\uc0c1<\/td>\n<td>kVA = (V \u00d7 A) \u00f7 1000<\/td>\n<td>240 V, 100 A \u2192 24.0 kVA<\/td>\n<\/tr>\n<tr>\n<td>3\uc0c1<\/td>\n<td>kVA = (\u221a3 \u00d7 V \u00d7 A) \u00f7 1000<\/td>\n<td>240 V, 100 A \u2192 41.6 kVA<\/td>\n<\/tr>\n<tr>\n<td>3\uc0c1<\/td>\n<td>kVA = (\u221a3 \u00d7 V \u00d7 A) \u00f7 1000<\/td>\n<td>400 V, 200 A \u2192 138.6 kVA<\/td>\n<\/tr>\n<tr>\n<td>3\uc0c1<\/td>\n<td>kVA = (\u221a3 \u00d7 V \u00d7 A) \u00f7 1000<\/td>\n<td>480 V, 200 A \u2192 166.3 kVA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc0c1\ub2e8 \ub450 \ud589\uc744 \uc8fc\ubaa9\ud558\uc2ed\uc2dc\uc624: 240V, 100A\uc758 \ub3d9\uc77c\ud55c \ubd80\ud558\uac00 \ub2e8\uc0c1\uc5d0\uc11c\ub294 24kVA\ub97c \uc81c\uacf5\ud558\uc9c0\ub9cc, \uc0bc\uc0c1\uc5d0\uc11c\ub294 41.6 kVA\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc0bc\uc0c1 \uc2dc\uc2a4\ud15c\uc744 \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0, \ub2e8\uc0c1 \uacb0\uacfc\uac00 \ubcc0\uc555\uae30 \ud06c\uae30\ub97c 42%\ub9cc\ud07c \uacfc\uc18c\ud3c9\uac00\ud558\ubbc0\ub85c \uc0bc\uc0c1 \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10563\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/From-kW-to-kVA-The-Power-Factor-Step.webp\" alt=\"kW\uc5d0\uc11c kVA\ub85c: \uc804\ub825 \uacc4\uc218 \ub2e8\uacc4\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"power-factor\">kW\uc5d0\uc11c kVA\ub85c: \uc804\ub825 \uacc4\uc218 \ub2e8\uacc4<\/h2>\n<p>\uba85\ud310\uc5d0 \uc788\ub294 \uc815\ubcf4\ub294 \uc885\uc885 kW \ub610\ub294 \ub9c8\ub825\uc73c\ub85c \uc81c\uacf5\ub418\uc9c0\ub9cc, kVA\ub85c\ub294 \ub4dc\ubb3c\uac8c \uc81c\uacf5\ub429\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \ubd84\ubaa8\ub294 \uc804\uc555\uacfc \uc804\ub958 \uc0ac\uc774\uc758 \uac01\ub3c4\uc758 \ucf54\uc0ac\uc778\uc73c\ub85c \uc815\uc758\ub418\ub294 \uc804\ub825 \uacc4\uc218\uc774\uba70, \uc5d4\uc9c4\uc758 \uacbd\uc6b0 \uc77c\ubc18\uc801\uc73c\ub85c 0.8\u20130.9, \uc800\ud56d \ubd80\ud558 \ubc0f VFD\uc758 \uacbd\uc6b0 0.95\u20131.0\uc73c\ub85c \ucd94\uc815\ub429\ub2c8\ub2e4.<\/p>\n<p>kVA = kW \u00f7 \uc804\ub825 \uacc4\uc218<\/p>\n<p>85 PF\ub97c \uac00\uc9c4 100 kW \uc5d4\uc9c4\uc740 117.6 kVA\ub97c \uc18c\ube44\ud569\ub2c8\ub2e4. 100 kW\uc758 \uc21c\uc218 \uc800\ud56d \ud788\ud130\ub294 \uc815\ud655\ud788 100 kVA\ub97c \uc18c\ube44\ud569\ub2c8\ub2e4. PF\ub97c \uace0\ub824\ud558\uc9c0 \uc54a\uace0 kW \ub370\uc774\ud130\uc5d0 \uc758\uc874\ud558\uba74, \ubaa8\ud130\uc758 \uacbd\uc6b0 kVA\uac00 15\u201325%\ub9cc\ud07c \uacfc\uc18c\ud3c9\uac00\ub429\ub2c8\ub2e4. \uac01 \ubd80\ud558\ub97c \uba3c\uc800 kVA\ub85c \ud45c\ud604\ud558\uace0, \uadf8 \ud6c4 \ucd1d\ud569\uc744 \uacc4\uc0b0\ud558\uc2ed\uc2dc\uc624 \u2014 kW \uac12\uc744 \ub2e8\uc21c\ud788 \ud569\uc0b0\ud558\uace0 \ub098\ub204\uc9c0 \ub9c8\uc2ed\uc2dc\uc624, \uc11c\ub85c \ub2e4\ub978 \uc804\ub825 \uacc4\uc218\ub97c \uac00\uc9c4 \ubd80\ud558\uc758 \ud589\ub3d9\uc774 \ub2e4\ub974\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\uc804\ub825 \uacc4\uc218<\/th>\n<th>100 kW\ub2f9 kVA<\/th>\n<th>\ud06c\uae30 \uc870\uc815\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>00 (\uc800\ud56d\uc131)<\/td>\n<td>100<\/td>\n<td>\uc5c6\uc74c<\/td>\n<\/tr>\n<tr>\n<td>95 (VFD \/ LED)<\/td>\n<td>105<\/td>\n<td>+5%<\/td>\n<\/tr>\n<tr>\n<td>0.90<\/td>\n<td>111<\/td>\n<td>+11%<\/td>\n<\/tr>\n<tr>\n<td>85 (\uc77c\ubc18 \ubaa8\ud130)<\/td>\n<td>118<\/td>\n<td>+18%<\/td>\n<\/tr>\n<tr>\n<td>0.80<\/td>\n<td>125<\/td>\n<td>+25%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"worked-examples\">\uc7ac\uc0ac\uc6a9 \uac00\ub2a5\ud55c \uc608\uc81c<\/h2>\n<p>\uc608\uc81c 1 \u2014 \ubaa8\ud130 \ubd80\ud558. 0.87 \uc804\ub825 \uacc4\uc218\ub85c \uc791\ub3d9\ud558\ub294 45 kW \ub4f1\uae09\uc758 \ubaa8\ud130 3\ub300\uc640 0.82 \uc804\ub825 \uacc4\uc218\ub85c \uc124\uce58\ub41c 30 kW \ub4f1\uae09\uc758 \uc555\ucd95\uae30\uac00 \uc788\uc2b5\ub2c8\ub2e4! \uc138 \ubaa8\ud130\uc758 kVA \ub4f1\uae09 = 45 \u00f7 0.87 = 51.7 kVA! \ub530\ub77c\uc11c \uc138 \ubaa8\ud130\uc758 \ucd1d kVA \ub4f1\uae09 = 3 \u00d7 51.7 = 155.2 kVA! \uc555\ucd95\uae30\uc758 \uacbd\uc6b0, kVA = 30 \u00f7 0.82 = 36.6 kVA! \ucd1d \uc6b4\uc804 kVA = 191.8 kVA! \uc774\uc81c \ub2e4\uc591\uc131\uc744 \uc801\uc6a9\ud558\uba74 = 191.8 \u00d7 0.85 = 163 kVA! \uc131\uc7a5\uc5d0 \ub300\ud574 15%\ub97c \ucd94\uac00\ud558\uba74 (\uc989, 163 + (15%\uc758 163) = 187.5 kVA! \uad8c\uc7a5 \ub4f1\uae09 = 200 kVA (\uc989, \ud655\uc7a5\uc774 \ud655\uc2e4\ud560 \uacbd\uc6b0 250 kVA)!<\/p>\n<p>\uc608\uc81c 2 \u2014 \uce21\uc815\ub41c \ubd80\ud558. 415 V\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 \uc0bc\uc0c1 \ud53c\ub354\uc5d0\uc11c 260 A\uc758 \ubd80\ud558\ub97c \uce21\uc815\ud55c\ub2e4\uace0 \uac00\uc815\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc804\ub825 \uacc4\uc218\ub294 0.88\uc785\ub2c8\ub2e4! \ub530\ub77c\uc11c kVA\ub97c \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4: kVA = 1.732 \u00d7 415 \u00d7 260 \u00f7 1000 = 186.8! \uc774\uc81c kVA\ub97c \uacc4\uc0b0\ud588\uc73c\ubbc0\ub85c \uc2e4\uc81c \uc804\ub825\uc744 \uc27d\uac8c \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4: \uc2e4\uc81c \uc804\ub825 = 186.8 \u00d7 0.88 = 164.4 kW! \ub530\ub77c\uc11c \ubcc0\uc555\uae30\uc758 \ub4f1\uae09\uc740 186.8 kVA \uc774\uc0c1\uc774\uc5b4\uc57c \ud569\ub2c8\ub2e4! 15%\uc758 \uc5ec\uc720\ub97c \ub450\uace0 \ubcc0\uc555\uae30\uc758 \ub4f1\uae09\uc740 215 kVA\ub85c \uc124\uc815\ud574\uc57c \ud558\uba70, \uc0b0\uc5c5 \ud45c\uc900\uc740 250 kVA\uc785\ub2c8\ub2e4!<\/p>\n<p>\uc608\uc81c 3 \u2014 \uacb0\ud569 \ubd80\ud558. \uc555\ucd95\uae30\uc758 \uc804\ub825 \uc18c\ube44\uac00 60 kVA, \uc870\uba85\uc774 20 kVA, \uc0ac\ubb34\uc2e4 \uace0\ub3c4\uac00 15 kVA\uc778 \ub0c9\uc7a5 \ucc3d\uace0\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ucd1d\ud569\uc740 95 kVA\uc785\ub2c8\ub2e4! \uc774\uc81c \ub2e4\uc591\uc131\uc744 \uc801\uc6a9\ud558\uba74 0.85 \u00d7 95 = 80.8 kVA\uac00 \ub418\uace0, \uc131\uc7a5 20%\ub97c \ucd94\uac00\ud558\uba74 \ubcc0\uc555\uae30\uc758 \ub4f1\uae09\uc774 100 kVA\ub85c \uacb0\uc815\ub429\ub2c8\ub2e4.<\/p>\n<p>\uacb0\ub860\uc801\uc73c\ub85c, \ubaa8\ub4e0 \uacbd\uc6b0\uc5d0 \ub3d9\uc77c\ud55c \uc138 \ub2e8\uacc4\ub97c \ubc18\ubcf5\ud588\ub2e4\uace0 \ub9d0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4: kVA\ub85c \ubcc0\ud658, \ub2e4\uc591\uc131 \uc801\uc6a9, \uc5ec\uc720 \ucd94\uac00.<\/p>\n<h2 id=\"measurement\">\uc804\ub958\uc640 \uc804\uc555\uc744 \uc815\ud655\ud558\uac8c \uce21\uc815\ud558\uae30<\/h2>\n<p>\u201c\uc4f0\ub808\uae30\uac00 \ub4e4\uc5b4\uac00\uba74 \uc4f0\ub808\uae30\uac00 \ub098\uc628\ub2e4\u201d\ub294 \uc6d0\uce59\uc740 \uac15\uc870\ud560 \uac00\uce58\uac00 \uc788\ub2e4; \uc815\ud655\uc131\uc740 \ub370\uc774\ud130\uc758 \ud488\uc9c8\uc5d0 \uc758\uc874\ud55c\ub2e4. \ub300\uc2e0, \ubaa8\ud130\uc640 \uc804\uc790 \ubd80\ud558\uac00 \uc2e0\ud638\uc758 \ud615\ud0dc\ub97c \ubcc0\ud615\uc2dc\ud0a4\uae30 \ub54c\ubb38\uc5d0 \uc800\ub834\ud55c \ud3c9\uade0 \uc751\ub2f5\ud615 \ub300\uc2e0 \uc9c4\uc815\ud55c RMS \ud074\ub7a8\ud504 \ubbf8\ud130\ub97c \uc0ac\uc6a9\ud574\uc57c \ud558\uba70, \ud3c9\uade0 \ubbf8\ud130\ub294 \ub0ae\uc740 \uc785\ub825\uc73c\ub85c \uc778\ud574 \uc798\ubabb\ub41c \ud310\ub3c5\uac12\uc744 \uc81c\uacf5\ud55c\ub2e4. \uc815\ud655\ud55c \uce21\uc815\uc744 \uc704\ud574 \uac01 \uc0c1\uc774 \uc544\ub2cc \uc8fc \ucc28\ub2e8\uae30 \ub610\ub294 \uc2a4\uc704\uce58\ubcf4\ub4dc\uc5d0\uc11c \uce21\uc815\uc744 \uc218\ud589\ud574\uc57c \ud558\uba70(\uc774\uc0c1\uc801\uc73c\ub85c\ub294 \ucd5c\uc18c\ud55c \ud55c \ubc88\uc758 \uc804\uccb4 \uc791\ub3d9 \uc8fc\uae30 \ub3d9\uc548, \uadf8\ub7ec\ub098 \ubc14\ub78c\uc9c1\ud558\uac8c\ub294 \ucd1d \uc77c\uc8fc\uc77c \ub3d9\uc548) \uc815\ud655\ud55c \uce21\uc815\uc744 \uc5bb\uae30 \uc704\ud574 \ubaa8\ub4e0 \ucd5c\ub300 \uc120 \uc804\ub958, \uc120 \uac04 \uc804\uc555 \ubc0f \uc804\ub825 \uacc4\uc218\ub97c \uae30\ub85d\ud574\uc57c \ud55c\ub2e4.<\/p>\n<p>\uc8fc\uc694 \uc0ac\uc2e4: \uc7a5\uce58\uc758 \uc774\ub984\ud45c \uce21\uba74\uc774 \uc544\ub2cc \ubd80\ud558 \uce21\uba74\uc5d0\uc11c \uce21\uc815\ud574\uc57c \ud558\uba70, \uc774\ub984\ud45c \uac12\uc740 \ucd5c\ub300\uce58\ub97c \ubc18\uc601\ud558\ubbc0\ub85c \uc2e4\uc81c\ub85c\ub294 \uac70\uc758 \uad00\ub828\uc774 \uc5c6\ub2e4. \ub610\ud55c, \u201c400 V\u201d \uc2dc\uc2a4\ud15c\uc774 \uc2e4\uc81c\ub85c\ub294 \ubcc0\uc555\uae30 \ucd9c\ub825\uc5d0\uc11c 420-430 V\ub85c \uc791\ub3d9\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \uc2e4\uc81c \uc11c\ube44\uc2a4 \uc804\uc555\uc744 \ud655\uc778\ud574\uc57c \ud55c\ub2e4.<\/p>\n<h2 id=\"standard-ratings\">\uadc0\ud558\uc758 kVA \uc22b\uc790\ub97c \ubcc0\uc555\uae30 \uc815\uaca9\uc73c\ub85c \ubcc0\ud658\ud558\uae30<\/h2>\n<p>\uc124\uacc4\uc5d0 \ud544\uc694\ud55c kVA \uac12\uc774 \uacb0\uc815\ub418\uba74 \ub2e4\uc74c \ud45c\uc900 \uc6a9\ub7c9\uc744 \uc0ac\uc6a9\ud574\uc57c \ud55c\ub2e4. IEC \uc6a9\ub3c4\ub85c\ub294 25, 50, 100, 160, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000 \ubc0f 2500 kVA\uac00 \ud3ec\ud568\ub41c\ub2e4. \ubd81\ubbf8\uc5d0\uc11c\ub294 25, 37.5, 50, 75, 100, 150, 167, 250, 333 \ubc0f 500 kVA\ub97c \uc0ac\uc6a9\ud55c\ub2e4. \uc801\uc808\ud55c \ub2e4\uc74c \uc815\uaca9\uc744 \uacb0\uc815\ud558\uae30 \uc704\ud574 \ub530\ub77c\uc57c \ud560 \ub450 \uac00\uc9c0 \uaddc\uce59\uc774 \uc788\ub2e4:<\/p>\n<ul>\n<li>\uac12\uc740 \ud56d\uc0c1 \uc62c\ub9bc\ud574\uc57c \ud55c\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uacc4\uc0b0\ub41c \ubd80\ud558\uac00 \uc57d 249 kVA\uc778 \uacbd\uc6b0 200 kVA \ub300\uc2e0 250 kVA \ubc1c\uc804\uae30\ub97c \uc0ac\uc6a9\ud574\uc57c \ud55c\ub2e4.<\/li>\n<li>\uc7a5\ube44\uc758 \uc2dc\uc791 \ubd80\ud558\ub97c \uc801\uc808\ud788 \uacb0\uc815\ud574\uc57c \ud55c\ub2e4. \uc2dc\uc2a4\ud15c\uc5d0 \uc788\ub294 \uac00\uc7a5 \ud070 \ubaa8\ud130\uac00 \ucd1d \uc815\uaca9\uc758 \uc57d 25% \uc774\uc0c1\uc778 \uacbd\uc6b0 \uc2dc\uc791 \ubd80\ud558\ub97c \ucc3e\uc544\uc57c \ud55c\ub2e4; \uc608\ub97c \ub4e4\uc5b4, 100-kW DOL \ubaa8\ud130\ub294 \ucc98\uc74c \uc2dc\uc791\ud560 \ub54c 600+ kVA\uac00 \ud544\uc694\ud560 \uc218 \uc788\ub2e4.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>\uce21\uc815\/\uacc4\uc0b0\ub41c kVA<\/th>\n<th>15% \uc5ec\uc720 \ucd94\uac00<\/th>\n<th>IEC \ud45c\uc900 \uc815\uaca9<\/th>\n<th>NA \ud45c\uc900 \uc815\uaca9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>20<\/td>\n<td>23<\/td>\n<td>25<\/td>\n<td>25<\/td>\n<\/tr>\n<tr>\n<td>85<\/td>\n<td>98<\/td>\n<td>100<\/td>\n<td>100<\/td>\n<\/tr>\n<tr>\n<td>140<\/td>\n<td>161<\/td>\n<td>160<\/td>\n<td>167<\/td>\n<\/tr>\n<tr>\n<td>210<\/td>\n<td>242<\/td>\n<td>250<\/td>\n<td>250<\/td>\n<\/tr>\n<tr>\n<td>270<\/td>\n<td>311<\/td>\n<td>315<\/td>\n<td>333<\/td>\n<\/tr>\n<tr>\n<td>430<\/td>\n<td>495<\/td>\n<td>500<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td>550<\/td>\n<td>633<\/td>\n<td>630<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"common-errors\">\uc77c\ubc18\uc801\uc778 kVA \uacc4\uc0b0 \uc624\ub958<\/h2>\n<ul>\n<li>\ub2e8\uc0c1 \ubc29\uc815\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc0bc\uc0c1 \ubd80\ud558\ub97c \uacc4\uc0b0\ud558\uba74 \u221a3\uc744 \ubb34\uc2dc\ud558\uc5ec 42%\uc758 \uacfc\uc18c \ud3c9\uac00\ub85c \uc774\uc5b4\uc9c4\ub2e4.<\/li>\n<li>kW\ub97c \uae30\ubc18\uc73c\ub85c \ud55c \uac12 \uacc4\uc0b0 \ubc29\ubc95\uacfc \uc804\ub825 \uacc4\uc218\ub97c \uc0dd\ub7b5\ud558\uba74 \ubaa8\ud130 \ubd80\ud558\uc5d0 \ub300\ud574 15%\u201325%\uc758 \uacfc\uc18c \ud3c9\uac00\ub85c \uc774\uc5b4\uc9c4\ub2e4.<\/li>\n<li>\uc774\ub984\ud45c\uc758 \uc815\uaca9 \ubd80\ud558 \ud2b9\uc131\uc744 \uae30\ubc18\uc73c\ub85c \uacc4\uc0b0\ud558\uba74 \uc2e4\uc81c \uc18c\ube44\uac00 \ud56d\uc0c1 \ub370\uc774\ud130\ubcf4\ub2e4 \ub0ae\uae30 \ub54c\ubb38\uc5d0 \uacfc\ub300 \ud3c9\uac00\uac00 \ubc1c\uc0dd\ud558\ubbc0\ub85c \ub300\uc2e0 \uc815\ud655\ud55c \uacb0\uc815\uc744 \ub0b4\ub824\uc57c \ud55c\ub2e4.<\/li>\n<li>\ub2e4\uc591\uc131 \uacc4\uc218\ub97c \uace0\ub824\ud558\uc9c0 \uc54a\uc73c\uba74 \uacc4\uc0b0\uc774 20%\u201340%\uc758 \uacfc\ub300 \uc815\uaca9\uc73c\ub85c \uc774\uc5b4\uc838 \ucd94\uac00\uc801\uc778 \ubb34\ubd80\ud558 \uc190\uc2e4\uc774 \uc601\uad6c\uc801\uc73c\ub85c \uc9c0\uc18d\ub420 \uc218 \uc788\ub2e4.<\/li>\n<li>\ub9cc\uc57d \uac00\ub2a5\ud55c \ubd80\ud558 \uc99d\uac00\ub97c \uace0\ub824\ud558\uc9c0 \uc54a\uc73c\uba74, \uacc4\uc0b0\uc740 \ub2e4\uc74c \ud574\uc758 \ubd80\ud558\ub97c 10%\u201320%\ub85c \uacfc\uc18c \ud3c9\uac00\ud558\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4.<\/li>\n<li>\uc0bc\uc0c1 \ubd80\ud558\ub97c \uacc4\uc0b0\ud560 \ub54c \uc120-\uc911\uc131 \uc804\uc555\uc744 \uc801\uc6a9\ud558\uba74, \uc120-\uc120 \uac12\uc744 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<li>\uace0\uc870\ud30c \uc804\ub958\ub97c \ubb34\uc2dc\ud558\uba74 VFD \ubd80\ud558\uc758 \uc801\uc6a9 \uacb0\uacfc\ub85c \uc5f4 \ubd80\ud558\uac00 5%\u201315% \uc99d\uac00\ud558\uac8c \ub429\ub2c8\ub2e4.<\/li>\n<li>\ub098\uc5f4\ub41c \ubaa8\ub4e0 \uc624\ub958\ub294 \ubc1c\uc0dd \ud6c4 \ud6a8\uacfc\ub97c \uc778\uc9c0\ud558\uae30\uc5d0\ub294 \ube44\uc6a9\uc774 \ub9ce\uc774 \ub4e4\uc9c0\ub9cc \uc27d\uac8c \ud53c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10562\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/kVA-Reference-Table-by-Load-Type.webp\" alt=\"\ubd80\ud558 \uc720\ud615\ubcc4 kVA \ucc38\uc870 \ud45c\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"kva-table\">\ubd80\ud558 \uc720\ud615\ubcc4 kVA \ucc38\uc870 \ud45c<\/h2>\n<table>\n<thead>\n<tr>\n<th>\ubd80\ud558 \uc720\ud615<\/th>\n<th>\uc77c\ubc18\uc801\uc778 PF<\/th>\n<th>100 kW\ub2f9 kVA<\/th>\n<th>\ud06c\uae30 \uc870\uc815 \ucc38\uace0 \uc0ac\ud56d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc720\ub3c4 \uc804\ub3d9\uae30<\/td>\n<td>0.80\u20130.88<\/td>\n<td>114\u2013125<\/td>\n<td>\uae30\ub3d9 \ub3cc\uc785 \uc804\ub958 \uc8fc\uc758<\/td>\n<\/tr>\n<tr>\n<td>VFD \uad6c\ub3d9 \uc804\ub3d9\uae30<\/td>\n<td>95 \uc785\ub825<\/td>\n<td>105<\/td>\n<td>\ub0ae\uc740 \uae30\ub3d9 \uc218\uc694, \uace0\uc870\ud30c \ud655\uc778<\/td>\n<\/tr>\n<tr>\n<td>\uc555\ucd95\uae30 \/ \ub0c9\uac01\uae30<\/td>\n<td>0.82\u20130.90<\/td>\n<td>111\u2013122<\/td>\n<td>\uc8fc\uae30\uc801 \ubd80\ud558, \uc21c\ucc28\uc801 \uae30\ub3d9<\/td>\n<\/tr>\n<tr>\n<td>\uc800\ud56d \uac00\uc5f4<\/td>\n<td>1.00<\/td>\n<td>100<\/td>\n<td>PF \ubcf4\uc815 \ud544\uc694 \uc5c6\uc74c<\/td>\n<\/tr>\n<tr>\n<td>\uc870\uba85 (LED)<\/td>\n<td>0.95\u20130.99<\/td>\n<td>101\u2013105<\/td>\n<td>\ubb34\uc2dc\ud560 \uc218 \uc788\ub294 \ud6a8\uacfc<\/td>\n<\/tr>\n<tr>\n<td>\uc6a9\uc811<\/td>\n<td>0.45\u20130.70<\/td>\n<td>143\u2013222<\/td>\n<td>\ub0ae\uc740 \ub2e4\uc591\uc131, kW\ub2f9 \ub192\uc740 kVA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uadc0\ud558\uc758 \uacc4\uc0b0\uc774 \uc815\ud655\ud55c\uc9c0 \ud655\uc778\ud558\uae30 \uc704\ud574 \ub2e4\uc74c \ud45c\ub97c \ucc38\uc870\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4: \uadc0\ud558\uc758 \uc2dc\uc124\uc774 \uc8fc\ub85c \ubaa8\ud130\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0, \ucd1d kVA\ub294 \ucd1d kW\uc758 115-125% \ubc94\uc704\uc5d0 \uc788\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uacb0\uacfc\uac00 100% \uc815\ub3c4\ub77c\uba74, \uc804\ub825 \uacc4\uc218 \uc694\uc18c\ub97c \ub193\ucce4\uc744 \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4.<\/p>\n<h2 id=\"brands-prices\">\uc0bc\uc0c1 \uc720\ub2db\uc758 \ube0c\ub79c\ub4dc \ubc0f \uac00\uaca9<\/h2>\n<p>kVA\uac00 \uacc4\uc0b0\ub418\uba74, \uc0c1\uc5c5\uc801 \ub2e8\uacc4\ub294 \ubaa8\ub4e0 \ubd84\uc57c\uc5d0\uc11c \ub3d9\uc77c\ud569\ub2c8\ub2e4: \uc720\uc0ac\ud55c \uc0ac\uc591\uc758 \uacac\uc801\uc744 \ube44\uad50\ud558\uc2ed\uc2dc\uc624. \uc804 \uc138\uacc4 \uae30\uc5c5\ub4e4\uc740 \uc9c0\uc6d0 \ub124\ud2b8\uc6cc\ud06c\uc5d0 \ub300\ud55c \uac00\uaca9\uc744 \uc124\uc815\ud558\uba70, IEC \uc778\uc99d\uc744 \ubc1b\uc740 \uc911\uad6d \uc0dd\uc0b0\uc790\ub4e4\uc740 \uc81c\ud488\uc758 \uac00\uaca9\uc744 \ucc45\uc815\ud569\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\ube0c\ub79c\ub4dc<\/th>\n<th>\uc704\uce58<\/th>\n<th>250 kVA<\/th>\n<th>500 kVA<\/th>\n<th>1,000 kVA<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>ABB<\/td>\n<td>\uae00\ub85c\ubc8c \uc11c\ube44\uc2a4 \ub124\ud2b8\uc6cc\ud06c<\/td>\n<td>$12,000\u2013$20,000<\/td>\n<td>$18,000\u2013$30,000<\/td>\n<td>$25,000\u2013$42,000<\/td>\n<\/tr>\n<tr>\n<td>\uc9c0\uba58\uc2a4<\/td>\n<td>\ud6a8\uc728\uc131 \ubc0f \ubaa8\ub2c8\ud130\ub9c1<\/td>\n<td>$12,000\u2013$22,000<\/td>\n<td>$18,000\u2013$32,000<\/td>\n<td>$25,000\u2013$45,000<\/td>\n<\/tr>\n<tr>\n<td>\uc288\ub098\uc774\ub354 \uc77c\ub809\ud2b8\ub9ad<\/td>\n<td>\uac74\uc2dd, LV \ud1b5\ud569<\/td>\n<td>$11,000\u2013$18,000<\/td>\n<td>$15,000\u2013$28,000<\/td>\n<td>$22,000\u2013$38,000<\/td>\n<\/tr>\n<tr>\n<td>\ud788\ud0c0\uce58 \uc5d0\ub108\uc9c0<\/td>\n<td>\uadf8\ub9ac\ub4dc \ubc0f \uc0b0\uc5c5<\/td>\n<td>$12,000\u2013$21,000<\/td>\n<td>$17,000\u2013$30,000<\/td>\n<td>$24,000\u2013$42,000<\/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>$14,000\u2013$26,000<\/td>\n<td>$20,000\u2013$36,000<\/td>\n<\/tr>\n<tr>\n<td>\uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825<\/td>\n<td>IEC 60076, \uad6c\ub9ac, \uc2dc\ud5d8 \ubcf4\uace0\uc11c<\/td>\n<td>$4,500\u2013$11,000<\/td>\n<td>$8,000\u2013$16,000<\/td>\n<td>$12,000\u2013$22,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc704\uc758 \uac00\uaca9\uc740 FOB \uc911\uad6d \ub610\ub294 \uacf5\uc7a5 \uc778\ub3c4 \uae30\uc900\uc73c\ub85c \uc81c\uacf5\ub418\uba70, \uc0ac\uc591, \ube0c\ub79c\ub4dc \ubc0f \uc704\uce58\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc704\uc5d0 \uc5b8\uae09\ub41c \uad6d\uc81c \ube0c\ub79c\ub4dc\ub294 \uc2e0\ub8b0\uc131\uacfc \uc911\uc694\ud55c \uc124\uce58\uc5d0 \uc801\ud569\uc131\uc73c\ub85c \uc798 \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. \uc0b0\uc5c5 \uacf5\uc7a5, \uc591\uc870\uc7a5, \ub0c9\ub3d9 \uc800\uc7a5 \uc2dc\uc124 \ubc0f \uc0c1\uc5c5 \uac74\ubb3c\uacfc \uac19\uc740 \ub300\ubd80\ubd84\uc758 \uc0bc\uc0c1 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \ube44\uc6a9-\ud3b8\uc775 \ube44\uc728\uc740 \ud604\uc7a5\uc5d0\uc11c \uc785\uc99d\ub41c \uacbd\ud5d8\uc774 \uc788\ub294 \uacf5\uae09\uc5c5\uccb4\uc5d0\uac8c \uc720\ub9ac\ud569\ub2c8\ub2e4. \uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825\uc740 IEC 60076 \ud45c\uc900\uc5d0 \ubd80\ud569\ud558\ub294 \ubcc0\uc555\uae30\ub97c \ub2e4\uc591\ud55c \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc5d0 \uc81c\uacf5\ud558\uba70, \uc6a9\ub7c9\uc740 10 kVA\uc5d0\uc11c 100 MVA\uae4c\uc9c0 \ub2e4\uc591\ud558\uace0, \ubaa8\ub4e0 \uc720\ub2db\uc5d0 \uc2dc\ud5d8 \ubcf4\uace0\uc11c\uac00 \uc81c\uacf5\ub418\ub294 \uad6c\ub9ac \uad8c\uc120\uc744 \ud45c\uc900 \uc635\uc158\uc73c\ub85c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \uacc4\uc0b0\ub41c kVA\ub294 \uba85\ud310\uc5d0 \ud45c\uc2dc\ub41c kVA\uc785\ub2c8\ub2e4. \uac00\uaca9\uc740 \uc601\ud5a5\uc744 \ubbf8\uce58\uc9c0 \uc54a\uc73c\uba70, \uc218\ube44\uc548 \uc804\ub825\uc758 \uacc4\uc0b0 \uacb0\uacfc\ub294 \ud56d\uc0c1 \uc785\uc99d\ub429\ub2c8\ub2e4.<\/p>\n<h2 id=\"faq\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h3>\uc0bc\uc0c1 kVA\uc758 \uacf5\uc2dd\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n<p>kVA\ub97c \uacc4\uc0b0\ud558\ub294 \uacf5\uc2dd\uc740 (\u221a3 \u00d7 \ubcfc\ud2b8 \u00d7 \uc554\ud398\uc5b4) \u00f7 1000\uc785\ub2c8\ub2e4. \ubcfc\ud2b8\uc5d0\ub294 \uc120-\uc120 \uc804\uc555\uc744 \ub300\uc785\ud558\uace0, \uc554\ud398\uc5b4\uc5d0\ub294 \uc120 \uc804\ub958\ub97c \ub300\uc785\ud569\ub2c8\ub2e4. \uc704\uc758 \uacc4\uc0b0\uc5d0\uc11c\ub294 400 V\uc758 \uc120-\uc120 \uc804\uc555\uacfc 300 A\uc758 \uc120 \uc804\ub958\uac00 \uc0ac\uc6a9\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \ub2e8\uacc4\ubcc4 \uacc4\uc0b0\uc740 1.732 \u00d7 400 \u00d7 300 \u00f7 1000 = 207.8 kVA\uc785\ub2c8\ub2e4. \uce21\uc815 \uc2dc \ud56d\uc0c1 \uc120-\uc120 \uc804\uc555\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624 \u2014 \uc120-\uc911\uc131 \uc804\uc555\uc744 \uc0ac\uc6a9\ud558\uba74 \uc798\ubabb\ub41c \uacc4\uc0b0\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/p>\n<h3>\ubcc0\uc555\uae30\uc5d0 \ub300\ud574 300 \uc554\ud398\uc5b4\ub97c 415 V\ub85c \ubcc0\ud658\ud558\ub824\uba74 \uc5b4\ub5bb\uac8c \ud574\uc57c \ud558\ub098\uc694?<\/h3>\n<p>kVA\ub97c \uc5bb\uc73c\ub824\uba74 kW\ub97c \uc804\ub825 \uacc4\uc218\ub85c \ub098\ub204\uc5b4\uc57c \ud569\ub2c8\ub2e4: kVA = kW \u00f7 PF. 0.85 PF\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 200 kW \ubd80\ud558\ub294 235 kVA\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \ubcc0\uc555\uae30\ub97c \uad6c\uc785\ud560 \ub54c\ub294 \uadf8 \uae08\uc561\uc5d0 \uc57d\uac04\uc758 \uc5ec\uc720\ub97c \ucd94\uac00\ud574\uc57c \ud569\ub2c8\ub2e4 \u2014 \uc57d 15-20% \u2014 \uadf8\ub9ac\uace0 \uac00\uc7a5 \uac00\uae4c\uc6b4 \ud45c\uc900 \ub4f1\uae09\uc73c\ub85c \ubc18\uc62c\ub9bc\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c 235 kVA\ub294 \ub300\ub7b5 270 kVA\uac00 \ub418\uba70, \uc774\ub294 IEC \uaddc\uaca9\uc5d0 \ub530\ub77c 315 kVA \ub610\ub294 NA \uaddc\uc815\uc5d0 \ub530\ub77c 333 kVA\ub85c \ubcc0\ud658\ub429\ub2c8\ub2e4.<\/p>\n<h3>415 V \uc0bc\uc0c1\uc5d0\uc11c 300 \uc554\ud398\uc5b4\uc5d0 \ud544\uc694\ud55c \ubcc0\uc555\uae30 \ud06c\uae30\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<\/h3>\n<p>\uacf5\uc2dd\uc744 \uc801\uc6a9\ud558\uba74: 1.732 \u00d7 415 \u00d7 300 \u00f7 1000 = 215.6 kVA. 15%\uc758 \uc5ec\uc720\ub97c \ucd94\uac00\ud558\uba74 248 kVA\uac00 \ub418\uba70, \uc774\ub294 \ucd5c\uc18c \uc694\uad6c \uc0ac\ud56d\uc73c\ub85c 250 kVA \ubcc0\uc555\uae30\uac00 \ud544\uc694\ud558\uac70\ub098, \uc0c1\ub2f9\ud55c \uc131\uc7a5\uc774\ub098 \ub300\ud615 \ubaa8\ud130 \uae30\ub3d9 \ubd80\ud558\uc758 \uacbd\uc6b0 315 kVA \ubcc0\uc555\uae30\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<h3>\ubcc0\uc555\uae30 \uc815\uaca9\uc774 \uce21\uc815\ub41c kW\ubcf4\ub2e4 \ud070 \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/h3>\n<p>\uc138 \uac00\uc9c0 \uc124\uba85\uc774 \uc788\uc2b5\ub2c8\ub2e4: \uc804\ub825 \uacc4\uc218(\ubaa8\ud130 \ubd80\ud558\ub294 kVA &gt; kW\ub97c \uc694\uad6c\ud568), \ub2e4\uc591\uc131 \ubc0f \uc5ec\uc720(0.7\u20130.85\uc758 \ub2e4\uc591\uc131\uacfc 10\u201320%\uc758 \uc131\uc7a5\uc774 \uc0b0\uc5c5 \uad00\ud589\uc5d0 \ud3ec\ud568\ub428), \uadf8\ub9ac\uace0 \uae30\ub3d9 \uacfc\ub3c4 \ud604\uc0c1. \uc608\ub97c \ub4e4\uc5b4, \ud55c \uacf5\uc7a5\uc740 0.85 PF\uc5d0\uc11c 150 kW\uc758 \uc218\uce58\ub97c \ubcf4\uace0\ud558\uace0 20 %\uc758 \uc5ec\uc720\ub97c \uac00\uc9c0\uba70 \ub300\ud615 DOL \ubaa8\ud130\uac00 \uc788\uc5b4 250 kVA\uc758 \uc7a5\uce58\uac00 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\ubcc0\uc555\uae30 kVA\ub97c \uc804\ubb38\uc801\uc73c\ub85c \uacc4\uc0b0\ud558\ub294 \ub370 \ub4dc\ub294 \ube44\uc6a9\uc740 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<\/h3>\n<p>\uc9d1\uc5d0\uc11c\ub294 \uc2dc\uac04\uacfc \uc9c4\uc815 RMS \ud074\ub7a8\ud504 \ubbf8\ud130($50\u2013$200) \ubc0f \ub370\uc774\ud130 \uae30\ub85d\uc5d0 \uc77c\uc8fc\uc77c\uc774 \uc18c\uc694\ub418\ub294 \ube44\uc6a9\ub9cc \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uacf5\uc2dd \ubd80\ud558 \uc5f0\uad6c\ub97c \uc704\ud574 \ucee8\uc124\ud134\ud2b8\ub97c \uace0\uc6a9\ud558\uba74 $500\uc5d0\uc11c $2,000 \uc0ac\uc774\uc758 \ube44\uc6a9\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ub450 \uac00\uc9c0 \ubc29\ubc95 \ubaa8\ub450 \uc62c\ubc14\ub978 \uc120\ud0dd\uc744 \ud558\ub294 \ud55c $8,000\u2013$40,000\uc758 \ubcc0\uc555\uae30 \uac00\uaca9\uc5d0 \ube44\ud574 \ube60\ub974\uac8c \ube44\uc6a9\uc744 \ud68c\uc218\ud569\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 \ud45c\uc900 \uc815\uaca9, \ud5c8\uc6a9 \uc624\ucc28 \ubc0f \uc2dc\ud5d8 \uc694\uad6c \uc0ac\ud56d.<\/li>\n<li><a href=\"https:\/\/www.electrical4u.com\/transformer-kva-calculator\/\" rel=\"nofollow noopener\" target=\"_blank\">Electrical4U \u2014 \ubcc0\uc555\uae30 kVA \uacc4\uc0b0\uae30<\/a> \u2014 \ub2e8\uc0c1 \ubc0f \uc0bc\uc0c1 kVA \ubcc0\ud658\uc744 \uc704\ud55c \uc628\ub77c\uc778 \ub3c4\uad6c.<\/li>\n<li><a href=\"https:\/\/www.fluke.com\/en-us\/learn\/blog\/power-quality\/true-rms-measurement\" rel=\"nofollow noopener\" target=\"_blank\">Fluke \u2014 \uc9c4\uc815 RMS \uce21\uc815<\/a> \u2014 \uc815\ud655\ud55c \uc804\ub958 \ubc0f \uc804\uc555 \uae30\ub85d\uc744 \uc704\ud55c \uc9c4\uc815 RMS \ubbf8\ud130\uc758 \uc911\uc694\uc131.<\/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 \uc2e4\uc6a9\uc801\uc778 \uc124\uce58\ub97c \uc704\ud55c \ud06c\uae30 \uacc4\uc0b0\uae30 \ubc0f kVA \ud45c.<\/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:\/\/en.wikipedia.org\/wiki\/Apparent_power\" rel=\"nofollow noopener\" target=\"_blank\">Wikipedia \u2014 \uac89\ubcf4\uae30 \uc804\ub825<\/a> \u2014 kVA, kW \ubc0f \uc804\ub825 \uacc4\uc218\uc5d0 \ub300\ud55c \uc774\ub860.<\/li>\n<\/ul>\n<h2 id=\"conclusion\">\uacb0\ub860<\/h2>\n<p>\uc0bc\uc0c1 \uc804\uae30\uc758 kVA \uc815\uaca9\uc744 \uacb0\uc815\ud558\ub294 \uacfc\uc815\uc740 \uac04\ub2e8\ud558\uba70, kVA = (\u221a3 \u00d7 V \u00d7 A) \u00f7 1000\uc758 \uac04\ub2e8\ud55c \uacc4\uc0b0\uc785\ub2c8\ub2e4. kW\ub3c4 \uc804\ub825 \uacc4\uc218\ub97c \ud3ec\ud568\ud558\uc5ec \uacc4\uc0b0\ub418\uace0 \ud544\uc694\uc5d0 \ub530\ub77c \uad00\ub828 \uc5ec\uc720 \ubc0f \ub2e4\uc591\uc131 \uacc4\uc218\uc5d0 \ub530\ub77c \uc218\uc815\ub41c\ub2e4\uace0 \uac00\uc815\ud569\ub2c8\ub2e4; \uc2e4\uc81c \ucc28\uc774\ub294 \ubcc0\uc218\uc758 \uc801\uc808\ud55c \uc785\ub825\uc73c\ub85c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc591\uc870\uc7a5\uc758 \uacbd\ud5d8\uc740 630 kVA\uc758 \uc804\uae30\uc5d0 \ub300\ud574 \ube44\uc6a9\uc744 \uc9c0\ubd88\ud588\uc9c0\ub9cc, \ubd80\ud558\ub97c \uc62c\ubc14\ub974\uac8c \uce21\uc815\ud558\uace0 \uacc4\uc0b0\ud588\ub2e4\uba74 500 kVA\uc758 \uc804\uae30\uc5d0 \ub300\ud574\uc11c\ub9cc \ube44\uc6a9\uc744 \uc9c0\ubd88\ud588\uc744 \uac83\uc774\ub77c\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<ul>\n<li>\ud56d\uc0c1 \uc0bc\uc0c1 \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc120\uac04 \uc804\uc555\uc73c\ub85c \uacc4\uc0b0\ud558\uace0 \ub2e8\uc0c1 \uacf5\uc2dd\ub9cc \uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub3c4\ub85d \ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>\ub2e4\uc591\ud55c \ubd80\ud558 \uadf8\ub8f9\uc5d0 \ub300\ud574 \uc2e4\uc81c \uc804\ub825 \uacc4\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec kW\ub97c kVA\ub85c \ubcc0\ud658\ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>7\u20130.85 \ubc94\uc704\uc758 \ub2e4\uc591\uc131 \uacc4\uc218\uc640 15\u201320% \ubc94\uc704\uc758 \uc131\uc7a5 \uacc4\uc218\ub97c \uace0\ub824\ud55c \ud6c4, \uc22b\uc790\ub97c \uac00\uc7a5 \uac00\uae4c\uc6b4 \ud45c\uc900 \uac12\uc73c\ub85c \ubc18\uc62c\ub9bc\ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>\uacf5\uae09\uc5c5\uccb4\uc758 \uacf5\uc7a5 \ud14c\uc2a4\ud2b8 \ubcf4\uace0\uc11c\ub97c \ud655\uc778\ud558\uc5ec \uacc4\uc0b0\ub41c \uac12\uc774 \uc81c\uacf5\ub41c \uc815\uaca9\uacfc \uc77c\uce58\ud558\ub294\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/li>\n<\/ul>\n<p>\uacc4\uc0b0\uc774 \uc644\ub8cc\ub418\uba74, <a href=\"https:\/\/subian-electric.com\/ko\/\">\uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825<\/a> 10 kVA\uc5d0\uc11c 100 MVA\uae4c\uc9c0\uc758 IEC 60076 \uc778\uc99d 3\uc0c1 \ubcc0\uc555\uae30\ub97c \uacac\uc801\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4 \u2014 \uc2e4\uc81c\ub85c \ubc1b\ub294 \uc7a5\uce58\uc758 kVA \ubc0f \uc190\uc2e4\uc744 \ud655\uc778\ud558\ub294 \uacf5\uc7a5 \ud14c\uc2a4\ud2b8 \ubcf4\uace0\uc11c\uc640 \ud568\uaed8.<\/p>","protected":false},"excerpt":{"rendered":"<p>A Zambian brewing company procured a transformer rated at 630 kVA for its new bottling facility after receiving information from an electrician stating that 630 is the standard number for that type of facility. Half a year afterward, it was discovered that the unit was running very hot every day, the voltage was dropping when [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":10560,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[77],"tags":[],"class_list":["post-10559","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\/10559","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=10559"}],"version-history":[{"count":3,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/10559\/revisions"}],"predecessor-version":[{"id":11096,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/10559\/revisions\/11096"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media\/10560"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media?parent=10559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/categories?post=10559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/tags?post=10559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}