{"id":10625,"date":"2026-08-29T23:42:57","date_gmt":"2026-08-29T15:42:57","guid":{"rendered":"https:\/\/q8bbzjnpm5.wpdns.site\/?p=10625"},"modified":"2026-08-29T23:42:57","modified_gmt":"2026-08-29T15:42:57","slug":"how-to-choose-the-right-transformer","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/ja\/news\/how-to-choose-the-right-transformer\/","title":{"rendered":"\u9069\u5207\u306a\u30c8\u30e9\u30f3\u30b9\u3092\u9078\u3076\u65b9\u6cd5"},"content":{"rendered":"<p>\u30ab\u30ea\u30d5\u30a9\u30eb\u30cb\u30a2\u306e\u8fb2\u5834\u30aa\u30fc\u30ca\u30fc\u306f\u30015\u3064\u306e\u704c\u6f11\u30dd\u30f3\u30d7\u3068\u51b7\u8535\u30b9\u30c8\u30a2\u306e\u904b\u7528\u306e\u305f\u3081\u306b\u5730\u5143\u306e\u96fb\u6c17\u5de5\u4e8b\u696d\u8005\u304b\u30893\u3064\u306e\u88fd\u54c1\u3092\u63d0\u793a\u3055\u308c\u307e\u3057\u305f\uff1a50 kVA\u306e\u30dd\u30fc\u30eb\u30de\u30a6\u30f3\u30c8\u30c8\u30e9\u30f3\u30b9\u300175 kVA\u306e\u30d1\u30c3\u30c9\u30de\u30a6\u30f3\u30c8\u30c8\u30e9\u30f3\u30b9\u3001\u307e\u305f\u306f\u7d76\u5bfe\u306b\u5b89\u5168\u3092\u671f\u3059\u305f\u3081\u306b100 kVA\u306e\u30c8\u30e9\u30f3\u30b9\u3067\u3059\u3002\u3053\u308c\u30892\u3064\u306e\u30c8\u30e9\u30f3\u30b9\u306e\u30b3\u30b9\u30c8\u306e\u9055\u3044\u306f$3,200\u3067\u3057\u305f\u3002\u30dd\u30f3\u30d7\u306f\u4e09\u76f8\u69cb\u6210\u3067460\u30dc\u30eb\u30c8\u306e\u96fb\u5727\u30ec\u30d9\u30eb\u3067\u52d5\u4f5c\u3057\u3001\u96fb\u529b\u4f1a\u793e\u306f480\u30dc\u30eb\u30c8\u306e\u30b5\u30fc\u30d3\u30b9\u306e\u307f\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u53cb\u4eba\u306f\u3001\u30b5\u30a4\u30ba\u304c\u4e0d\u8db3\u3057\u305f\u30c8\u30e9\u30f3\u30b9\u3092\u8cfc\u5165\u3057\u305f\u969b\u306b\u81ea\u5206\u304c\u72af\u3057\u305f\u540c\u3058\u9593\u9055\u3044\u3092\u3057\u306a\u3044\u3088\u3046\u306b\u30aa\u30fc\u30ca\u30fc\u306b\u8b66\u544a\u3057\u307e\u3057\u305f\u3002\u5f7c\u306f\u3001\u3061\u3089\u3064\u304d\u3084\u904e\u71b1\u306b\u95a2\u9023\u3059\u308b\u554f\u984c\u3092\u514b\u670d\u3059\u308b\u306e\u306b6\u304b\u6708\u304b\u304b\u3063\u305f\u306e\u3067\u3059\u3002\u9069\u5207\u306a\u30c8\u30e9\u30f3\u30b9\u3092\u9078\u3076\u65b9\u6cd5\u306b\u95a2\u3059\u308b\u7b54\u3048\u306f\u3001\u8ca0\u8377\u3001\u96fb\u5727\u3001\u5834\u6240\u3001\u6210\u9577\u306a\u3069\u306e\u591a\u304f\u306e\u8981\u56e0\u306b\u4f9d\u5b58\u3057\u3066\u304a\u308a\u3001\u3053\u306e\u5b9f\u7528\u30ac\u30a4\u30c9\u3067\u306f\u3001\u5fc5\u8981\u306a\u8a08\u7b97\u3092\u884c\u3044\u306a\u304c\u3089\u3001\u9069\u5207\u306a\u30c8\u30e9\u30f3\u30b9\u3092\u9078\u629e\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3092\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n<blockquote><p>\u9069\u5207\u306a\u30c8\u30e9\u30f3\u30b9\u3092\u9078\u629e\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u3044\u304f\u3064\u304b\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u7d4c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff1a(1) kVA\u3067\u306e\u7dcf\u96fb\u529b\u8981\u4ef6\u3092\u8a08\u7b97\u3059\u308b\uff1b(2) \u6df7\u5408\u8ca0\u8377\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306f\u7d040.7\u20130.85\u306e\u591a\u69d8\u6027\u4fc2\u6570\u3092\u4f7f\u7528\u3059\u308b\uff1b(3) \u5c06\u6765\u306e\u6210\u9577\u309215-20%\u8003\u616e\u3059\u308b\uff1b(4) \u30c8\u30e9\u30f3\u30b9\u3068\u96fb\u5727\u4f9b\u7d66\u3092\u4e00\u81f4\u3055\u305b\u308b\uff1b(5) \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u305f\u30c8\u30e9\u30f3\u30b9\u3092\u9078\u629e\u3059\u308b\uff1b(6) \u9069\u5207\u306a\u6a19\u6e96IEC 60076\u306e\u8a55\u4fa1\u3092\u9078\u629e\u3059\u308b\u3002.<\/p><\/blockquote>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10632\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/How-To-Choose-The-Right-Transformer-1.webp\" alt=\"\u9069\u5207\u306a\u30c8\u30e9\u30f3\u30b9\u3092\u9078\u3076\u65b9\u6cd5\" width=\"1448\" height=\"1086\" \/><\/p>\n<hr \/>\n<h2 id=\"step1-load\">\u30b9\u30c6\u30c3\u30d71\uff1akVA\u3067\u306e\u8ca0\u8377\u3092\u5408\u8a08\u3059\u308b<\/h2>\n<p>\u63a5\u7d9a\u3059\u308b\u4e88\u5b9a\u306e\u5404\u30c7\u30d0\u30a4\u30b9\u306b\u306f\u3001kW\u307e\u305f\u306f\u597d\u307e\u3057\u304f\u306fkW\u3068\u96fb\u5727\u306b\u95a2\u3059\u308b\u7279\u5b9a\u306e\u540d\u677f\u304c\u3042\u308a\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u306e\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b\u969b\u306b\u306f\u3001\u5dfb\u7dda\u304c\u30c7\u30d0\u30a4\u30b9\u306e\u529b\u7387\u306b\u95a2\u4fc2\u306a\u304f\u6d41\u308c\u308b\u96fb\u6d41\u306b\u3088\u3063\u3066\u71b1\u3092\u767a\u751f\u3055\u305b\u308b\u305f\u3081\u3001kVA\uff08\u898b\u304b\u3051\u306e\u96fb\u529b\uff09\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8a08\u7b97\u306f\u7c21\u5358\u3067\u3059\uff1akVA = kW\/\u529b\u7387\uff08\u5358\u76f8\uff09\u3001\u307e\u305f\u306f\u4e09\u76f8\u8ca0\u8377\u306e\u5834\u5408\u306fkVA = (\u221a3 * \u30dc\u30eb\u30c8 * \u30a2\u30f3\u30d7) \u00f7 1000\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u529b\u73870.85\u306e10 kW\u306e\u5b9a\u683c\u3092\u6301\u30645\u3064\u306e\u704c\u6f11\u30dd\u30f3\u30d7\u306f\u300115 \u00f7 0.85 = 11.76 kVA\u3092\u5fc5\u8981\u3068\u3057\u3001\u5408\u8a08\u306759 kVA\u306b\u306a\u308a\u307e\u3059\u3002\u51b7\u8535\u5eab\u306e\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u306f6 kVA\u3092\u8ffd\u52a0\u3057\u3001\u7167\u660e\u306f\u3055\u3089\u306b4 kVA\u3092\u8ffd\u52a0\u3057\u3066\u5408\u8a08\u7d0469 kVA\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u51fa\u767a\u70b9\u3067\u3042\u308a\u3001\u3059\u3067\u306bkW\u306e\u521d\u671f\u5024\u3092\u4e0a\u56de\u3063\u3066\u3044\u307e\u3059\u3002.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6a5f\u5668<\/th>\n<th>kW<\/th>\n<th>\u529b\u7387<\/th>\n<th>kVA \u5404<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u704c\u6f11\u30dd\u30f3\u30d7 (\u00d75)<\/td>\n<td>10<\/td>\n<td>0.85<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>\u51b7\u8535\u5eab\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc<\/td>\n<td>5<\/td>\n<td>0.82<\/td>\n<td>6.1<\/td>\n<\/tr>\n<tr>\n<td>\u7167\u660e\u3068\u5236\u5fa1<\/td>\n<td>3.8<\/td>\n<td>0.95<\/td>\n<td>4.0<\/td>\n<\/tr>\n<tr>\n<td>\u30ef\u30fc\u30af\u30b7\u30e7\u30c3\u30d7\u30c4\u30fc\u30eb\uff08\u6642\u6298\uff09<\/td>\n<td>4<\/td>\n<td>0.80<\/td>\n<td>5.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u30e1\u30e2\u30ea\u30fc\u304b\u3089\u306e\u300c\u30ad\u30ed\u30ef\u30c3\u30c8\u300d\u306e\u7dcf\u91cf\u306b\u4f9d\u5b58\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u30ea\u30b9\u30c8\u304b\u3089\u3044\u304f\u3064\u304b\u306e\u9805\u76ee\u3092\u898b\u9003\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u4e00\u822c\u7684\u306b\u8a00\u3048\u3070\u3001\u529b\u7387\u88dc\u6b63\u81ea\u4f53\u306fkVA\u304c\u500b\u3005\u306ekW\u306e\u5408\u8a08\u3088\u308a\u3082\u7d0410-25%\u9ad8\u304f\u306a\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002.<\/p>\n<h2 id=\"step2-diversity\">\u30b9\u30c6\u30c3\u30d72\uff1a\u591a\u69d8\u6027\u3068\u6210\u9577\u3092\u9069\u7528\u3059\u308b<\/h2>\n<p>\u3059\u3079\u3066\u306e\u6a5f\u5668\u304c\u540c\u6642\u306b\u6700\u5927\u8ca0\u8377\u3067\u52d5\u4f5c\u3057\u3066\u3044\u308b\u3068\u8003\u3048\u308b\u306e\u306f\u975e\u73fe\u5b9f\u7684\u3067\u3059\u3002\u3053\u308c\u304c\u3001\u79c1\u305f\u3061\u304c\u591a\u69d8\u6027\u4fc2\u6570\u3092\u8003\u616e\u3059\u3079\u304d\u7406\u7531\u3067\u3059\u3002\u8fb2\u5834\u3084\u5c0f\u898f\u6a21\u306a\u4f5c\u696d\u5834\u3067\u306f\u3001\u4ed6\u306e\u6a5f\u5668\u3068\u4e00\u7dd2\u306b\u30aa\u30f3\u30aa\u30d5\u3055\u308c\u308b\u30dd\u30f3\u30d7\u304c\u7d040.8\u306e\u591a\u69d8\u6027\u4fc2\u6570\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u79c1\u305f\u3061\u306e\u30b1\u30fc\u30b9\u3067\u306f\u300169 kVA \u00d7 0.8 = 55 kVA \u3068\u306a\u308a\u307e\u3059\u3002\u6b21\u306b\u3001\u6210\u9577\u306e\u305f\u3081\u306e\u4f59\u88d5\u3092\u52a0\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff1a\u3053\u306e\u696d\u754c\u3067\u306f15-20%\u304c\u4e00\u822c\u7684\u306a\u76ee\u5b89\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u300155 \u00d7 1.18 = 65 kVA\uff08\u7d04\uff09\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u5358\u7d14\u306a\u300c\u5408\u8a08\u300d\u9700\u8981\u304c69 kVA\u306e\u3088\u3046\u306b\u898b\u3048\u308b\u4e00\u65b9\u3067\u3001\u591a\u69d8\u6027\u3068\u6210\u9577\u306e\u8981\u56e0\u3092\u8003\u616e\u3057\u305f\u6b63\u78ba\u306b\u8a08\u7b97\u3055\u308c\u305f\u9700\u8981\u306f\u7d0465 kVA\u3068\u306a\u308a\u300175 kVA\u30e6\u30cb\u30c3\u30c8\u306e\u7bc4\u56f2\u5185\u306b\u53ce\u307e\u308a\u307e\u3059\u3002\u591a\u69d8\u6027\u3068\u6210\u9577\u306e\u4e21\u65b9\u306e\u8981\u56e0\u3092\u7121\u8996\u3059\u308b\u3068\u3001100 kVA\u3092\u8cfc\u5165\u3057\u3001\u8ffd\u52a0\u3067$1,500-2,500\u3092\u652f\u6255\u3044\u3001\u8ffd\u52a0\u306e\u96fb\u529b\u3092\u5931\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3082\u3057\u529b\u7387\u88dc\u6b63\u3092\u7121\u8996\u3059\u308b\u3068\u300150 kVA\u30e6\u30cb\u30c3\u30c8\u306e\u6545\u969c\u3092\u62db\u304f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n<h2 id=\"step3-voltage\">\u30b9\u30c6\u30c3\u30d73\uff1a\u96fb\u5727\u3092\u4e00\u81f4\u3055\u305b\u308b<\/h2>\n<p>\u96fb\u5727\u306e\u9069\u5408\u6027\u306f\u91cd\u8981\u3067\u3042\u308a\u3001\u300c\u8aa4\u3063\u305f\u30c8\u30e9\u30f3\u30b9\u300d\u306e\u767a\u751f\u306e\u6700\u3082\u4e00\u822c\u7684\u306a\u7406\u7531\u3067\u3059\u30022\u3064\u306e\u96fb\u5727\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\uff1a<\/p>\n<ul>\n<li>\u4e3b\u96fb\u5727 \u2013 \u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u4f9b\u7d66\u7d4c\u7531\uff1a\u5317\u7c73\u306e\u8fb2\u696d\u5730\u57df\u3067\u306f\u901a\u5e387200 V\u306e\u5358\u76f8\u300112.47 kV\/13.2 kV\u3001\u307e\u305f\u306f\u4ed6\u306e\u5730\u57df\u3067\u306f11 kV\/22 kV\/33 kV\u3067\u3059\u3002.<\/li>\n<li>\u526f\u96fb\u5727 \u2013 \u96fb\u5b50\u6a5f\u5668\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u3001\u5358\u76f8\u306e\u5834\u5408\u306f120\/240 V\u3001\u4e09\u76f8\u306e\u5834\u5408\u306f240 V\u3001\u307e\u305f\u306f\u5834\u6240\u3084\u6a5f\u5668\u306b\u5fdc\u3058\u3066\u4e09\u76f8\u306e\u5834\u5408\u306f380\u304b\u3089480 V\u3067\u3059\u3002.<\/li>\n<\/ul>\n<p>\u6ce8\u6587\u3092\u884c\u3046\u524d\u306b\u3001\u5fc5\u305a\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u96fb\u5727\u3092\u6587\u66f8\u3067\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u96fb\u6c17\u5206\u914d\u306f\u3001\u3042\u306a\u305f\u304c\u3044\u308b\u5730\u57df\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u3053\u3068\u3092\u5e38\u306b\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3057\u305f\u304c\u3063\u3066\u300111 kV\u7528\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30c8\u30e9\u30f3\u30b9\u306f12.47 kV\u3067\u306f\u3046\u307e\u304f\u6a5f\u80fd\u3057\u307e\u305b\u3093\u3002.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10633\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/6-step-transformer-selection.webp\" alt=\"\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"step4-type\">\u30b9\u30c6\u30c3\u30d74\uff1a\u5834\u6240\u306b\u5fdc\u3058\u305f\u30bf\u30a4\u30d7\u3092\u9078\u629e\u3059\u308b<\/h2>\n<p>\u30c8\u30e9\u30f3\u30b9\u306e\u8a2d\u7f6e\u5834\u6240\u306f\u3001\u88fd\u9020\u3055\u308c\u308b\u30c8\u30e9\u30f3\u30b9\u306e\u30bf\u30a4\u30d7\u306b\u5927\u304d\u304f\u5f71\u97ff\u3057\u307e\u3059\u3002\u5c0f\u898f\u6a21\u304a\u3088\u3073\u4e2d\u898f\u6a21\u306e\u8a2d\u7f6e\u306e\u5834\u5408\u3001\u5229\u7528\u53ef\u80fd\u306a\u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30bf\u30a4\u30d7<\/th>\n<th>\u6700\u9069\u306a\u7528\u9014<\/th>\n<th>\u4e00\u822c\u7684\u306a\u7bc4\u56f2<\/th>\n<th>\u6ce8\u8a18<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30dd\u30fc\u30eb\u30de\u30a6\u30f3\u30c8\u578b<\/td>\n<td>\u8fb2\u6751\u3001\u8fb2\u5834\u3001\u5c0f\u8ca0\u8377<\/td>\n<td>5\u2013167 kVA<\/td>\n<td>kVA\u3042\u305f\u308a\u306e\u30b3\u30b9\u30c8\u304c\u6700\u3082\u5b89\u3044\u3001\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u6240\u6709\u30b9\u30bf\u30a4\u30eb<\/td>\n<\/tr>\n<tr>\n<td>\u30d1\u30c3\u30c9\u30de\u30a6\u30f3\u30c8<\/td>\n<td>\u5c4b\u5916\u5546\u696d\u3001\u5206\u8b72\u5730<\/td>\n<td>25\u20132,500 kVA<\/td>\n<td>\u5730\u9762\u30ec\u30d9\u30eb\u3001\u8010\u59a8\u5bb3\u6027\u3001\u30a2\u30af\u30bb\u30b9\u304c\u5bb9\u6613<\/td>\n<\/tr>\n<tr>\n<td>\u4e7e\u5f0f\uff08\u5c4b\u5185\uff09<\/td>\n<td>\u5efa\u7269\u3001\u4f5c\u696d\u5834\u3001\u30aa\u30d5\u30a3\u30b9<\/td>\n<td>3\u20131,000 kVA<\/td>\n<td>\u8010\u706b\u6027\u3001\u30aa\u30a4\u30eb\u306a\u3057\u3001\u9759\u97f3<\/td>\n<\/tr>\n<tr>\n<td>\u30ad\u30e3\u30b9\u30c8\u30ec\u30b8\u30f3\u4e7e\u5f0f<\/td>\n<td>\u9ad8\u5c64\u30d3\u30eb\u3001\u30c8\u30f3\u30cd\u30eb\u3001\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc<\/td>\n<td>100\u20133,150 kVA<\/td>\n<td>\u6700\u826f\u306e\u8010\u706b\u6027\u80fd\u3001\u4f4e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/td>\n<\/tr>\n<tr>\n<td>\u6cb9\u6d78\u578b\uff08\u30b9\u30c6\u30fc\u30b7\u30e7\u30f3\uff09<\/td>\n<td>\u30b5\u30d6\u30b9\u30c6\u30fc\u30b7\u30e7\u30f3\u3001\u5de5\u696d\u7528\u5730<\/td>\n<td>50 kVA\u2013100 MVA<\/td>\n<td>\u6700\u826f\u306e\u904e\u8ca0\u8377\u8010\u6027\u3001\u30aa\u30a4\u30eb\u30d4\u30c3\u30c8\u304c\u5fc5\u8981<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8fb2\u5834\u306e\u30b7\u30ca\u30ea\u30aa\u306e\u5834\u5408\u300175 kVA\u306e\u30d1\u30c3\u30c9\u30de\u30a6\u30f3\u30c8\u578b\u30c8\u30e9\u30f3\u30b9\u306f\u3001\u5916\u90e8\u3067\u52d5\u4f5c\u3057\u3001\u8ca0\u8377\u306b\u76f4\u63a5\u63a5\u7d9a\u3059\u308b\u305f\u3081\u3001\u6700\u5c0f\u9650\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u5fc5\u8981\u3067\u3042\u308b\u305f\u3081\u6709\u5229\u3067\u3059\u3002\u6a5f\u5668\u304c\u5efa\u7269\u5185\u306b\u3042\u308b\u5834\u5408\u3001\u5b89\u5168\u306e\u305f\u3081\u306b\u4e7e\u5f0f\u30c8\u30e9\u30f3\u30b9\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>\n<h2 id=\"step5-rating\">\u30b9\u30c6\u30c3\u30d75\uff1a\u6a19\u6e96\u5b9a\u683c\u3092\u9078\u629e\u3059\u308b<\/h2>\n<p>\u30c8\u30e9\u30f3\u30b9\u306e\u30b5\u30a4\u30ba\u5b9a\u683c\u306f\u6a19\u6e96\u69cb\u6210\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u300125\u300137.5\u300150\u300175\u3001100\u3001150\u3001167\u3001\u304a\u3088\u3073250 kVA\u306e\u30b5\u30a4\u30ba\u304c\u5317\u7c73\u3067\u4f7f\u7528\u3055\u308c\u3001IEC\u5e02\u5834\u3067\u306f\u6b21\u306e\u30b5\u30a4\u30ba\u304c\u5229\u7528\u3055\u308c\u307e\u3059\uff1a25\u300150\u3001100\u3001160\u3001250\u3001315\u3001400\u3001\u304a\u3088\u3073500 kVA\u3002\u8a2d\u8a08\u8ca0\u8377\u3092\u6e80\u305f\u3059\u6700\u5c0f\u306e\u5b9a\u683c\u3092\u9078\u629e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8a2d\u8a08\u5024\u304c65 kVA\u3067\u3042\u308b\u305f\u3081\u3001\u9078\u629e\u306f75 kVA\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n<p>\u6ce8\u610f\u70b9\uff1a\u30c8\u30e9\u30f3\u30b9\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u5927\u304d\u306a\u30e2\u30fc\u30bf\u30fc\u304c\u3042\u308b\u5834\u5408\u3001\u305d\u306e\u30e2\u30fc\u30bf\u30fc\u306e\u59cb\u52d5\u96fb\u6d41\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u300125 kW\u306e\u30dd\u30f3\u30d7\u306f\u3001\u901a\u5e38\u306e\u51fa\u529b\u306e\u6700\u59276\u500d\u306e\u59cb\u52d5\u7d50\u679c\u3092\u751f\u3058\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff08\u51fa\u529b25 kW\u306e\u30dd\u30f3\u30d7\u306f\u7d0435 kVA\u3092\u751f\u6210\u3057\u307e\u3059\uff09\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u77ac\u6642\u306e\u96fb\u529b\u5bb9\u91cf\u304c\u5897\u52a0\u3057\u3001\u4ed6\u306e\u30dd\u30f3\u30d7\u304c\u6700\u521d\u306e\u30dd\u30f3\u30d7\u306e\u76f4\u5f8c\u306b\u8d77\u52d5\u3059\u308b\u3068\u3001\u96fb\u529b\u904e\u8ca0\u8377\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u5c11\u306a\u304f\u3068\u30822\u53f0\u306e\u30dd\u30f3\u30d7\u304c\u540c\u6642\u306b\u8d77\u52d5\u3059\u308b\u5834\u5408\u3001\u77ac\u6642\u5bb9\u91cf\u304c\u5b9a\u683c\u3092\u8d85\u3048\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n<h2 id=\"step6-cost\">\u30b9\u30c6\u30c3\u30d76\uff1a\u30b3\u30b9\u30c8\u3068\u52b9\u7387\u3092\u6bd4\u8f03\u3059\u308b<\/h2>\n<p>\u30b3\u30b9\u30c8\u306f\u65b9\u7a0b\u5f0f\u306e\u4e00\u90e8\u306b\u904e\u304e\u307e\u305b\u3093\u3002\u30c8\u30e9\u30f3\u30b9\u306f\u30e6\u30cb\u30c3\u30c8\u306e\u5168\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306b\u308f\u305f\u3063\u3066\u640d\u5931\u3092\u767a\u751f\u3055\u305b\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u306f\u3001\u8ca0\u8377\u304c\u63a5\u7d9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3067\u3082\u3001\u7d42\u65e5\u7121\u8ca0\u8377\u640d\u5931\u3092\u6301\u3061\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001$0.12\/kWh\u306e\u30b3\u30b9\u30c8\u3067\u300175kVA\u306b\u5b9a\u683c\u3055\u308c\u305f\u30c8\u30e9\u30f3\u30b9\u306f\u3001\u7d04250 W\u306e\u7121\u8ca0\u8377\u640d\u5931\u3092\u751f\u3058\u30011\u5e74\u9593\u3067$262\u306e\u30a2\u30a4\u30c9\u30eb\u640d\u5931\u3092\u767a\u751f\u3055\u305b\u307e\u3059 \u2014 \u305d\u3057\u306620\u5e74\u5f8c\u306b\u306f\u5408\u8a08\u3067$5,240\u306b\u306a\u308a\u3001\u3053\u308c\u306f\u30c8\u30e9\u30f3\u30b9\u306e\u5143\u306e\u30b3\u30b9\u30c8\u3092\u4e0a\u56de\u308a\u307e\u3059\u3002\u53d7\u3051\u53d6\u3063\u305f\u30aa\u30d5\u30a1\u30fc\u3092\u8a55\u4fa1\u3059\u308b\u969b\u306b\u306f\u3001\u5e38\u306b\u7121\u8ca0\u8377\u640d\u5931\u3068\u8ca0\u8377\u640d\u5931\u306e\u5024\u3092\u5c0b\u306d\u308b\u3053\u3068\u3092\u5fd8\u308c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5b9a\u683c<\/th>\n<th>\u5178\u578b\u7684\u306a\u7121\u8ca0\u8377\u640d\u5931 (W)<\/th>\n<th>\u5178\u578b\u8ca0\u8377\u640d\u5931 (W)<\/th>\n<th>20\u5e74\u9593\u306e\u640d\u5931\u30b3\u30b9\u30c8\u306f$0.12\/kWh\uff0875%\u8ca0\u8377\u6642\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>50 kVA<\/td>\n<td>130\u2013200<\/td>\n<td>1,100\u20131,500<\/td>\n<td>$24,000\u2013$33,000<\/td>\n<\/tr>\n<tr>\n<td>75 kVA<\/td>\n<td>180\u2013280<\/td>\n<td>1,500\u20132,100<\/td>\n<td>$34,000\u2013$47,000<\/td>\n<\/tr>\n<tr>\n<td>100 kVA<\/td>\n<td>220\u2013350<\/td>\n<td>1,900\u20132,700<\/td>\n<td>$44,000\u2013$61,000<\/td>\n<\/tr>\n<tr>\n<td>250 kVA<\/td>\n<td>450\u2013700<\/td>\n<td>3,900\u20135,500<\/td>\n<td>$92,000\u2013$127,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u3053\u3067\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u660e\u78ba\u3067\u3059\uff1a\u540c\u3058kVA\u306e\u30d9\u30f3\u30c0\u30fc\u9593\u306e\u52b9\u7387\u306e\u9055\u3044\u306f\u3001\u7dcf\u30b3\u30b9\u30c8\u306b\u6570\u5343\u30c9\u30eb\u306e\u5909\u52d5\u3092\u3082\u305f\u3089\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30a2\u30e2\u30eb\u30d5\u30a1\u30b9\u30b3\u30a2\u6a5f\u68b0\u306f\u3001\u7121\u8ca0\u8377\u640d\u5931\u304c50\u201370%\u524a\u6e1b\u3055\u308c\u300110\u201320%\u306e\u4fa1\u683c\u8d85\u904e\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u300120\u5e74\u30b3\u30b9\u30c8\u5206\u6790\u3067\u306f\u6700\u3082\u6709\u5229\u3067\u3042\u308b\u3053\u3068\u304c\u5224\u660e\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h2 id=\"sizing-table\">\u30af\u30a4\u30c3\u30af\u30b5\u30a4\u30ba\u53c2\u7167\u8868<\/h2>\n<p>\u3053\u308c\u306f\u3001\u914d\u96fb\u30e6\u30cb\u30c3\u30c8\u306e\u5178\u578b\u7684\u306a\u8a2d\u7f6e\u306b\u5bfe\u3059\u308b\u521d\u671f\u8abf\u67fb\u3067\u3059\uff08\u5178\u578b\u7684\u306a\u529b\u7387\u304c0.85\u3001\u30c0\u30a4\u30d0\u30fc\u30b7\u30c6\u30a3\u304c0.8\u3001\u6210\u9577\u304c15%\u3067\u3042\u308b\u3068\u4eee\u5b9a\uff09\u3002.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u63a5\u7d9a\u8ca0\u8377 (kW)<\/th>\n<th>\u7d04\u8d70\u884ckVA<\/th>\n<th>\u8a2d\u8a08\u9700\u8981<\/th>\n<th>\u63a8\u5968\u5b9a\u683c<\/th>\n<th>\u4fa1\u683c\u7bc4\u56f2\uff08FOB\u4e2d\u56fd\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>20<\/td>\n<td>24<\/td>\n<td>22<\/td>\n<td>25<\/td>\n<td>$1,200\u2013$3,000<\/td>\n<\/tr>\n<tr>\n<td>40<\/td>\n<td>47<\/td>\n<td>43<\/td>\n<td>50<\/td>\n<td>$1,800\u2013$4,500<\/td>\n<\/tr>\n<tr>\n<td>60<\/td>\n<td>71<\/td>\n<td>65<\/td>\n<td>75<\/td>\n<td>$2,400\u2013$5,500<\/td>\n<\/tr>\n<tr>\n<td>80<\/td>\n<td>94<\/td>\n<td>86<\/td>\n<td>100<\/td>\n<td>$2,500\u2013$6,000<\/td>\n<\/tr>\n<tr>\n<td>150<\/td>\n<td>176<\/td>\n<td>162<\/td>\n<td>160\u2013250<\/td>\n<td>$4,500\u2013$11,000<\/td>\n<\/tr>\n<tr>\n<td>350<\/td>\n<td>412<\/td>\n<td>379<\/td>\n<td>400\u2013500<\/td>\n<td>$8,000\u2013$16,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4fa1\u683c\u306f\u6cb9\u6d78\u30e6\u30cb\u30c3\u30c8\u306e\u76ee\u5b89\u3067\u3042\u308a\u3001\u4ed5\u69d8\u3001\u30d6\u30e9\u30f3\u30c9\u3001\u5834\u6240\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u8aad\u307f\u53d6\u308a\u5024\u304c\u5236\u9650\u5024\u3092\u4e0b\u56de\u308b\u5834\u5408\u306f\u3001\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u306e\u8cbb\u7528\u304c15-25%\u3067\u3042\u308b\u305f\u3081\u3001\u9ad8\u3044\u5024\u3092\u53d6\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u4e0d\u9069\u5207\u306a\u30e6\u30cb\u30c3\u30c8\u306e\u8a2d\u7f6e\u30b3\u30b9\u30c8\u306f\u3001\u5909\u5727\u5668\u306e\u904b\u8ee2\u983b\u5ea6\u306e\u5931\u6557\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10634\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/The-Three-Most-Common-Mistakes.webp\" alt=\"\u6700\u3082\u4e00\u822c\u7684\u306a3\u3064\u306e\u9593\u9055\u3044\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"common-mistakes\">\u6700\u3082\u4e00\u822c\u7684\u306a3\u3064\u306e\u9593\u9055\u3044<\/h2>\n<ul>\n<li>kVA\u306e\u4ee3\u308f\u308a\u306bkW\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3002\u540d\u677fkW\u3092\u8ffd\u52a0\u3059\u308b\u3068\u529b\u7387\u304c\u7121\u8996\u3055\u308c\u3001\u5fc5\u8981\u306a\u30b5\u30a4\u30ba\u3088\u308a\u308215\u201325%\u5c0f\u3055\u306a\u30e6\u30cb\u30c3\u30c8\u306b\u306a\u308a\u307e\u3059\u3002\u30b5\u30a4\u30ba\u3092\u6bd4\u8f03\u3059\u308b\u524d\u306b\u3001\u5e38\u306bkVA = kW \u00f7 PF\u306b\u5909\u63db\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n<li>\u30c0\u30a4\u30d0\u30fc\u30b7\u30c6\u30a3\u3068\u6210\u9577\u3092\u7121\u8996\u3059\u308b\u3053\u3068\u3002\u300c\u30d5\u30eb\u30b5\u30e0\u300d\u30b5\u30a4\u30ba\u3092\u53d6\u5f97\u3059\u308b\u3068\u7121\u99c4\u306a\u8cbb\u7528\u304c\u304b\u304b\u308a\u3001\u7121\u8ca0\u8377\u640d\u5931\u3092\u751f\u3058\u3001\u73fe\u5728\u306e\u9700\u8981\u306e\u307f\u3092\u53d6\u5f97\u3059\u308b\u3068\u6765\u5e74\u306e\u62e1\u5f35\u306e\u4f59\u5730\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u30020.7\u20138\u306e\u30c0\u30a4\u30d0\u30fc\u30b7\u30c6\u30a3\u307e\u305f\u306f15-20%\u306e\u6210\u9577\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n<li>\u4e0d\u6b63\u78ba\u306a\u96fb\u5727\u30af\u30e9\u30b9\u307e\u305f\u306f\u5468\u6ce2\u6570\u300211 kV\u306e\u5909\u5727\u5668\u304c12.47 kV\u306e\u30d5\u30a3\u30fc\u30c0\u30fc\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u52d5\u4f5c\u3057\u307e\u305b\u3093\u300250 Hz\u7528\u306b\u8a2d\u8a08\u3055\u308c\u305f\u5909\u5727\u5668\u309260 Hz\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3059\u308b\u3068\u3001\u98fd\u548c\u3057\u3066\u904e\u71b1\u3057\u307e\u3059\u3002\u8cfc\u5165\u524d\u306b\u96fb\u5727\u3068\u5468\u6ce2\u6570\u3092\u6587\u66f8\u3067\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n<\/ul>\n<p>\u3082\u3046\u4e00\u3064\u306e\u9593\u9055\u3044\uff1a\u52b9\u7387\u8a55\u4fa1\u3092\u907f\u3051\u3001\u8acb\u6c42\u66f8\u306b\u793a\u3055\u308c\u305f\u4fa1\u683c\u306e\u307f\u3092\u6a19\u6e96\u4fa1\u683c\u3068\u3057\u3066\u4f9d\u5b58\u3059\u308b\u3053\u3068\u3002\u904b\u8ee2\u4e2d\u306b\u767a\u751f\u3059\u308b\u640d\u5931\u306f\u3001\u9577\u671f\u7684\u306b\u6a5f\u68b0\u306e\u30b3\u30b9\u30c8\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002.<\/p>\n<h2 id=\"brands-prices\">\u30d6\u30e9\u30f3\u30c9\u3068\u4fa1\u683c\u5e2f<\/h2>\n<p>\u5c0f\u898f\u6a21\u304a\u3088\u3073\u4e2d\u898f\u6a21\u306e\u8a2d\u7f6e\u306e\u5834\u5408\u3001\u30d6\u30e9\u30f3\u30c9\u306e\u9078\u629e\u306f\u30b3\u30b9\u30c8\u3001\u30b5\u30dd\u30fc\u30c8\u3001\u6587\u66f8\u306e\u59a5\u5354\u3067\u3059\u3002\u3059\u3079\u3066\u306e\u826f\u597d\u306a\u5730\u4f4d\u306e\u4f9b\u7d66\u8005\u306fIEC 60076\u306b\u6e96\u62e0\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u308c\u305e\u308c\u306e\u30b5\u30fc\u30d3\u30b9\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u7d0d\u671f\u3001\u8a66\u9a13\u30c7\u30fc\u30bf\u306e\u53ef\u7528\u6027\u306f\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30d6\u30e9\u30f3\u30c9<\/th>\n<th>\u4f4d\u7f6e<\/th>\n<th>50 kVA<\/th>\n<th>100 kVA<\/th>\n<th>250 kVA<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>ABB<\/td>\n<td>\u30b0\u30ed\u30fc\u30d0\u30eb\u30b5\u30dd\u30fc\u30c8\u3001\u30d5\u30eb\u30ec\u30f3\u30b8<\/td>\n<td>$3,500\u2013$7,000<\/td>\n<td>$5,500\u2013$10,000<\/td>\n<td>$12,000\u2013$20,000<\/td>\n<\/tr>\n<tr>\n<td>\u30b7\u30fc\u30e1\u30f3\u30b9<\/td>\n<td>\u52b9\u7387\u3001\u30c7\u30b8\u30bf\u30eb\u30aa\u30d7\u30b7\u30e7\u30f3<\/td>\n<td>$3,500\u2013$7,500<\/td>\n<td>$5,500\u2013$11,000<\/td>\n<td>$12,000\u2013$22,000<\/td>\n<\/tr>\n<tr>\n<td>\u30b7\u30e5\u30ca\u30a4\u30c0\u30fc\u30a8\u30ec\u30af\u30c8\u30ea\u30c3\u30af<\/td>\n<td>\u4e7e\u5f0f\u30bf\u30a4\u30d7\u306e\u5f37\u5ea6<\/td>\n<td>$3,000\u2013$6,500<\/td>\n<td>$5,000\u2013$9,500<\/td>\n<td>$11,000\u2013$18,000<\/td>\n<\/tr>\n<tr>\n<td>\u30a4\u30fc\u30c8\u30f3<\/td>\n<td>\u5317\u7c73\u306e\u9075\u5b88<\/td>\n<td>$2,800\u2013$6,000<\/td>\n<td>$4,500\u2013$9,000<\/td>\n<td>$10,000\u2013$17,000<\/td>\n<\/tr>\n<tr>\n<td>CG\u30d1\u30ef\u30fc \/ TBEA<\/td>\n<td>\u30dc\u30ea\u30e5\u30fc\u30e0\u30d7\u30e9\u30a4\u30b7\u30f3\u30b0<\/td>\n<td>$2,000\u2013$4,500<\/td>\n<td>$3,000\u2013$6,500<\/td>\n<td>$7,000\u2013$12,000<\/td>\n<\/tr>\n<tr>\n<td>\u6c5f\u8607\u7701\u8607\u8fba\u96fb\u529b<\/td>\n<td>IEC 60076\u3001\u9285\u3001\u8a66\u9a13\u5831\u544a\u66f8<\/td>\n<td>$1,800\u2013$4,000<\/td>\n<td>$2,500\u2013$5,500<\/td>\n<td>$4,500\u2013$11,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u78ba\u7acb\u3055\u308c\u305f\u540d\u524d\u306f\u4fe1\u983c\u3067\u304d\u308b\u73fe\u4ee3\u306e\u3082\u306e\u3067\u3042\u308a\u3001\u5730\u57df\u30b5\u30fc\u30d3\u30b9\u304c\u91cd\u8981\u306a\u4efb\u52d9\u306b\u304a\u3044\u3066\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3068\u3057\u3066\u6b8b\u308a\u307e\u3059\u3002\u5bfe\u7167\u7684\u306b\u3001\u5b9f\u7528\u7684\u306a\u30ac\u30a4\u30c9\u306f\u4fa1\u5024\u306e\u9762\u3067\u969b\u7acb\u3063\u3066\u304a\u308a\u3001\u7279\u306b\u6c5f\u8607\u7701\u8607\u8fba\u96fb\u529b\u306fIEC 60076\u8a8d\u8a3c\u306e\u5909\u5727\u5668\u309210 kVA\u304b\u3089100 MVA\u306e\u5bb9\u91cf\u7bc4\u56f2\u3067\u88fd\u9020\u3057\u3001\u6a19\u6e96\u3068\u3057\u3066\u9285\u5dfb\u7dda\u3092\u63d0\u4f9b\u3057\u3001\u5404\u6ce8\u6587\u306b\u5bfe\u3057\u3066\u5de5\u5834\u8a66\u9a13\u5831\u544a\u66f8\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u3001\u30b9\u30c6\u30c3\u30d76\u3067\u6bd4\u8f03\u3057\u305f\u52b9\u7387\u6570\u5024\u306b\u306f\u78ba\u8a8d\u304c\u4ed8\u3044\u3066\u3044\u307e\u3059\u30022\u3064\u307e\u305f\u306f3\u3064\u306e\u5909\u5727\u5668\u3092\u5fc5\u8981\u3068\u3059\u308b\u5c0f\u3055\u306a\u5de5\u5834\u3001\u8fb2\u5834\u3001\u307e\u305f\u306f\u4f5c\u696d\u5834\u306b\u3068\u3063\u3066\u3001\u3053\u308c\u306b\u3088\u308a\u4f1a\u793e\u304c\u5404\u30c7\u30d0\u30a4\u30b9\u3067$3,000\u304b\u3089$8,000\u3092\u7bc0\u7d04\u3067\u304d\u308b\u305f\u3081\u3001\u30ef\u30a4\u30e4\u30fc\u306e\u30b3\u30b9\u30c8\u3092\u56de\u53ce\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u4ed6\u306e\u4f9b\u7d66\u8005\u306b\u5bfe\u3059\u308b\u9078\u629e\u65b9\u6cd5\u306f\u540c\u3058\u307e\u307e\u3067\u3059\u304c\u3001\u552f\u4e00\u306e\u9055\u3044\u306f\u3001\u79c1\u305f\u3061\u306e\u5834\u5408\u3001\u8003\u616e\u3055\u308c\u308b\u6a5f\u5668\u306b\u95a2\u9023\u3059\u308b\u4ed5\u69d8\u306e\u9075\u5b88\u8a3c\u660e\u304c\u3042\u308b\u3053\u3068\u3067\u3059\u3002.<\/p>\n<h2 id=\"faq\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>\u3069\u306e\u30b5\u30a4\u30ba\u306e\u5909\u5727\u5668\u304c\u5fc5\u8981\u304b\u3069\u3046\u3084\u3063\u3066\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u3059\u3079\u3066\u306e\u8ca0\u8377\u306ekVA\u3092\u5408\u8a08\u3057\u307e\u3059 - \u5404\u8ca0\u8377\u306ekW \/ \u529b\u7387\u3002\u591a\u69d8\u6027\u4fc2\u6570\u3092\u4f7f\u7528\u3057\u30010.7\u304b\u30890.85\u306e\u7bc4\u56f2\u3067\u3059\u3002\u5c06\u6765\u306e\u9700\u8981\u306e\u6210\u9577\u3092\u8003\u616e\u3057\u306615\uff05\u304b\u308920\uff05\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u7dcf\u8ca0\u8377\u304c60 kW\u3067\u529b\u7387\u304c0.85\u306e\u5834\u5408\u3001\u3053\u308c\u306f71 kVA\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u591a\u69d8\u6027\u3068\u5c06\u6765\u306e\u9700\u8981\u306e\u6210\u9577\u3092\u9069\u7528\u3057\u300165 kVA\u306b\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u300175 kVA\u306e\u30e6\u30cb\u30c3\u30c8\u3092\u9078\u629e\u3059\u308b\u3079\u304d\u3067\u3059\u3002.<\/p>\n<h3>\u5bb6\u306b\u306f\u3069\u306e\u30b5\u30a4\u30ba\u306e\u5909\u5727\u5668\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u4e00\u822c\u7684\u306b\u3001\u73fe\u4ee3\u306e\u5bb6\u306f25-50 kVA\u306e\u96fb\u529b\u30b5\u30fc\u30d3\u30b9\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\uff08EV\u5145\u96fb\u3001\u30d2\u30fc\u30c8\u30dd\u30f3\u30d7\u3001\u307e\u305f\u306f\u7a7a\u8abf\u7528\uff09\u3002\u305f\u3060\u3057\u3001\u4e00\u90e8\u306e\u5730\u57df\u3067\u306f\u3001\u30ac\u30b9\u306e\u307f\u3067\u6696\u623f\u3055\u308c\u308b\u5bb6\u306f10-15 kVA\u3057\u304b\u5fc5\u8981\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u901a\u5e38\u3001\u516c\u5171\u4e8b\u696d\u4f1a\u793e\u304c\u305d\u306e\u3088\u3046\u306a\u30b5\u30fc\u30d3\u30b9\u306b\u4f7f\u7528\u3055\u308c\u308b\u5909\u5727\u5668\u3092\u6240\u6709\u3057\u3001\u9078\u629e\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u8cfc\u5165\u3092\u884c\u3046\u524d\u306b\u3001\u516c\u5171\u4e8b\u696d\u4f1a\u793e\u306b\u76f8\u8ac7\u3059\u308b\u306e\u304c\u6700\u5584\u3067\u3059\u3002.<\/p>\n<h3>\u5fc5\u8981\u306a\u3088\u308a\u5927\u304d\u306a\u5909\u5727\u5668\u3092\u8cfc\u5165\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n<p>15%\u304b\u308920%\u306e\u6210\u9577\u76ee\u6a19\u3092\u76ee\u6307\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3088\u308a\u9ad8\u3044\u76ee\u6a19\u306f\u3001\u8ffd\u52a0\u306e\u30b5\u30a4\u30af\u30eb\u3054\u3068\u306b\u7d0415%\u304b\u308925%\u306e\u8cfc\u5165\u4fa1\u683c\u306b\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3057\u3001\u305d\u306e\u9593\u306b\u30d7\u30ed\u30bb\u30b9\u5185\u3067\u975e\u751f\u7523\u7684\u306a\u640d\u5931\u3092\u751f\u307f\u51fa\u3057\u307e\u3059\u3002.<\/p>\n<h3>\u30d1\u30c3\u30c9\u30de\u30a6\u30f3\u30c8\u3068\u30dd\u30fc\u30eb\u30de\u30a6\u30f3\u30c8\u306e\u5909\u5727\u5668\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u30dd\u30fc\u30eb\u306b\u53d6\u308a\u4ed8\u3051\u3089\u308c\u305f\u30e6\u30cb\u30c3\u30c8\uff085\u2013167 kVA\uff09\u306f\u3001\u5c0f\u898f\u6a21\u306a\u96fb\u529b\u307e\u305f\u306f\u8fb2\u6751\u7528\u9014\u306e\u5834\u5408\u306b\u516c\u5171\u4e8b\u696d\u306e\u30dd\u30fc\u30eb\u306b\u914d\u7f6e\u3059\u308b\u80fd\u529b\u304c\u3042\u308a\u307e\u3059\u3002\u30d1\u30c3\u30c9\u30de\u30a6\u30f3\u30c8\u30e6\u30cb\u30c3\u30c8\uff0825\u20132,500 kVA\uff09\u306f\u3001\u5730\u9762\u30ec\u30d9\u30eb\u306e\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u30b9\u30e9\u30d6\u306e\u4e0a\u306b\u5802\u3005\u3068\u7acb\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u30022\u3064\u306e\u9593\u3067\u9078\u629e\u3059\u308b\u969b\u306e\u8003\u616e\u4e8b\u9805\u306f\u3001\u4e3b\u306b\u96fb\u529b\u8981\u4ef6\u3068\u5c06\u6765\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u4fbf\u5229\u3055\u306b\u57fa\u3065\u3044\u3066\u304a\u308a\u3001\u30d1\u30c3\u30c9\u30de\u30a6\u30f3\u30c8\u30e6\u30cb\u30c3\u30c8\u306f\u4e00\u822c\u7684\u306b\u5b89\u5168\u6027\u3068\u30b5\u30fc\u30d3\u30b9\u6027\u306e\u4e21\u65b9\u306e\u9762\u3067\u512a\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3>75 kVA\u306e\u5909\u5727\u5668\u306e\u30b3\u30b9\u30c8\u306f\u3044\u304f\u3089\u3067\u3059\u304b\uff1f<\/h3>\n<p>75 kVA\u306e\u914d\u96fb\u30c8\u30e9\u30f3\u30b9\u306e\u30b3\u30b9\u30c8\u306f\u3001IEC\u8a8d\u8a3c\u3092\u53d7\u3051\u305f\u4e2d\u56fd\u306e\u30e1\u30fc\u30ab\u30fc\u304b\u3089FOB\u3067$2,400\u304b\u3089$5,500\u306e\u7bc4\u56f2\u3067\u3001\u30d6\u30e9\u30f3\u30c9\u3001\u4ed5\u69d8\u3001\u5730\u57df\u306b\u5fdc\u3058\u3066\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u30d6\u30e9\u30f3\u30c9\u3067\u306f$3,500\u304b\u3089$7,500\u306e\u7bc4\u56f2\u3067\u5909\u52d5\u3057\u307e\u3059\u3002\u652f\u6255\u7dcf\u984d\u306b\u306f\u3001\u901a\u5e3820\uff05\u304b\u308940\uff05\u306e\u904b\u9001\u6599\u3068\u8a2d\u7f6e\u8cbb\u7528\u304c\u542b\u307e\u308c\u300120\u5e74\u9593\u3067\u767a\u751f\u3059\u308b\u640d\u5931\u306f$34,000\u304b\u3089$47,000\u3067\u3001$0.12\/kWh\u306e\u30ec\u30fc\u30c8\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n<h2 id=\"references\">\u53c2\u8003\u6587\u732e<\/h2>\n<ul>\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/200\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60076-1: \u96fb\u529b\u5909\u5727\u5668 \u2014 \u4e00\u822c<\/a> \u2014 \u8a55\u4fa1\u304a\u3088\u3073\u8a66\u9a13\u306e\u56fd\u969b\u6a19\u6e96\u3002.<\/li>\n<li><a href=\"https:\/\/standards.ieee.org\/ieee\/C57.12.00\/6735\/\" rel=\"nofollow noopener\" target=\"_blank\">IEEE C57.12.00: \u6db2\u4f53\u6d78\u6f2c\u30c8\u30e9\u30f3\u30b9\u306e\u4e00\u822c\u8981\u4ef6<\/a> \u2014 \u5317\u7c73\u306e\u8a55\u4fa1\u304a\u3088\u3073\u8a66\u9a13\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3002.<\/li>\n<li><a href=\"https:\/\/www.nfpa.org\/codes-and-standards\/all-codes-and-standards\/list-of-codes-and-standards\/detail?code=70\" rel=\"nofollow noopener\" target=\"_blank\">NFPA 70: \u56fd\u5bb6\u96fb\u6c17\u898f\u5247<\/a> \u2014 \u30c8\u30e9\u30f3\u30b9\u306e\u8a2d\u7f6e\u304a\u3088\u3073\u904e\u96fb\u6d41\u4fdd\u8b77\u306b\u95a2\u3059\u308b\u5317\u7c73\u306e\u57fa\u6e96\u3002.<\/li>\n<li><a href=\"https:\/\/www.electrical4u.com\/transformer\/\" rel=\"nofollow noopener\" target=\"_blank\">Electrical4U \u2014 \u30c8\u30e9\u30f3\u30b9<\/a> \u2014 kVA\u306e\u30b5\u30a4\u30ba\u3001\u640d\u5931\u3001\u304a\u3088\u3073\u30c8\u30e9\u30f3\u30b9\u306e\u7a2e\u985e\u306b\u3064\u3044\u3066\u306e\u660e\u78ba\u306a\u8aac\u660e\u3002.<\/li>\n<li><a href=\"https:\/\/www.eaton.com\/us\/en-us\/products\/transformers\/transformer-consultant.html\" rel=\"nofollow noopener\" target=\"_blank\">Eaton \u2014 \u30c8\u30e9\u30f3\u30b9\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8<\/a> \u2014 \u5b9f\u7528\u7684\u306a\u8a2d\u7f6e\u306e\u305f\u3081\u306e\u30b5\u30a4\u30ba\u8a08\u7b97\u6a5f\u304a\u3088\u3073\u9078\u629e\u30ac\u30a4\u30c0\u30f3\u30b9\u3002.<\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Distribution_transformer\" rel=\"nofollow noopener\" target=\"_blank\">Wikipedia \u2014 \u914d\u96fb\u30c8\u30e9\u30f3\u30b9<\/a> \u2014 \u30dd\u30fc\u30eb\u30de\u30a6\u30f3\u30c8\u3001\u30d1\u30c3\u30c9\u30de\u30a6\u30f3\u30c8\u3001\u304a\u3088\u3073\u914d\u96fb\u30c8\u30e9\u30f3\u30b9\u306e\u7a2e\u985e\u306b\u95a2\u3059\u308b\u80cc\u666f\u60c5\u5831\u3002.<\/li>\n<\/ul>\n<h2 id=\"conclusion\">\u7d50\u8ad6<\/h2>\n<p>\u9069\u5207\u306a\u30c8\u30e9\u30f3\u30b9\u3092\u9078\u629e\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u5408\u8a08kVA\u3092\u6c7a\u5b9a\u3057\u3001\u591a\u69d8\u6027\u3068\u6210\u9577\u3092\u8003\u616e\u3057\u3001\u96fb\u5727\u3068\u5468\u6ce2\u6570\u306e\u4e92\u63db\u6027\u3092\u78ba\u8a8d\u3057\u3001\u8a2d\u7f6e\u30bf\u30a4\u30d7\u3092\u9078\u629e\u3057\u3001\u6a19\u6e96\u30b5\u30a4\u30ba\u3092\u9078\u3073\u3001\u52b9\u7387\u3068\u4fa1\u683c\u3092\u8a55\u4fa1\u3059\u308b\u3068\u3044\u30466\u3064\u306e\u7c21\u5358\u306a\u30b9\u30c6\u30fc\u30b8\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u8fb2\u5834\u306e\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\u306f\u3001\u5b9f\u969b\u306e\u30d7\u30ed\u30bb\u30b9\u5168\u4f53\u3092\u793a\u3057\u3001\u300c\u5358\u306bkW\u3092\u5408\u8a08\u3059\u308b\u3060\u3051\u300d\u3068\u3044\u3046\u7d20\u6734\u306a\u7b54\u3048\u304c2\u3064\u306e\u70b9\u3067\u9593\u9055\u3063\u3066\u3044\u305f\u7406\u7531\u3092\u8aac\u660e\u3057\u307e\u3057\u305f \u2014 \u591a\u69d8\u6027\u304c\u7121\u8996\u3055\u308c\u305f\u305f\u3081\u306b\u5927\u304d\u3059\u304e\u3001\u529b\u7387\u304c\u7121\u8996\u3055\u308c\u305f\u305f\u3081\u306b\u5c0f\u3055\u3059\u304e\u307e\u3057\u305f\u3002.<\/p>\n<ul>\n<li>kVA\u306e\u5b8c\u5168\u306a\u30b5\u30a4\u30ba\u8a08\u7b97\u306b\u306f\u3001\u884c\u3063\u305f\u529b\u7387\u88dc\u6b63\u3001\u63a8\u5b9a\u3055\u308c\u305f\u591a\u69d8\u6027\uff080.7\u304b\u30890.85\uff09\u3001\u304a\u3088\u3073\u8003\u616e\u3055\u308c\u305f\u6210\u9577\uff0815-20%\uff09\u304c\u542b\u307e\u308c\u307e\u3059\u3002.<\/li>\n<li>\u30c8\u30e9\u30f3\u30b9\u3092\u6ce8\u6587\u3059\u308b\u524d\u306b\u3001\u96fb\u529b\u4f9b\u7d66\u4f1a\u793e\u306e\u96fb\u5727\u3068\u5468\u6ce2\u6570\u3092\u6587\u66f8\u3067\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n<li>\u6240\u6709\u30b3\u30b9\u30c8\u3092\u8a55\u4fa1\u3059\u308b\uff08\u640d\u5931\u306f20\u5e74\u3067\u4fa1\u683c\u3092\u8d85\u3048\u308b\uff09\u3002.<\/li>\n<li>\u4f9b\u7d66\u8005\u306e\u8a66\u9a13\u7d50\u679c\u3068\u52b9\u7387\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>A farm owner in California was presented with three products by the local electrical contractor for operation of five irrigation pumps and a cold storage store: a pole mounted transformer of 50 kVA, a pad mounted one of 75 kVA, or to be absolutely safe, a 100 kVA transformer. The difference in cost between these two transformers was $3,200. The pumps run on the voltage level of 460 volts in three-phase configuration and the utility offers the only service of 480 volts. A friend warned the owner against making the same mistake he did when he bought an undersized transformer and spent six months overcoming the problems related to flickering [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":10632,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[77],"tags":[],"class_list":["post-10625","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts\/10625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/comments?post=10625"}],"version-history":[{"count":3,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts\/10625\/revisions"}],"predecessor-version":[{"id":11102,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts\/10625\/revisions\/11102"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/media\/10632"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/media?parent=10625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/categories?post=10625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/tags?post=10625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}