{"id":11744,"date":"2026-10-18T01:14:28","date_gmt":"2026-10-17T17:14:28","guid":{"rendered":"https:\/\/subian-electric.com\/?p=11744"},"modified":"2026-10-18T01:20:22","modified_gmt":"2026-10-17T17:20:22","slug":"transformers-are-sized-to-the-motor-drive-kva-requirement","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/ja\/blog\/transformers-are-sized-to-the-motor-drive-kva-requirement\/","title":{"rendered":"\u30c8\u30e9\u30f3\u30b9\u306f\u30e2\u30fc\u30bf\u30fc\u30c9\u30e9\u30a4\u30d6\u306ekVA\u8981\u4ef6\u306b\u5408\u308f\u305b\u3066\u30b5\u30a4\u30ba\u304c\u6c7a\u5b9a\u3055\u308c\u307e\u3059"},"content":{"rendered":"<p>\u3053\u306e\u9069\u7528\u65b9\u6cd5\u306b\u57fa\u3065\u3044\u3066\u3001\u30c8\u30e9\u30f3\u30b9\/\u30e2\u30fc\u30bf\u30fc\u60c5\u5831\u306f\u4e0d\u8981\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001\u30e2\u30fc\u30bf\u30fc\u306b\u76f4\u63a5\u63a5\u7d9a\u3055\u308c\u305f\u30c8\u30e9\u30f3\u30b9\u304c\u3001\u96fb\u6d41\u306e\u89b3\u70b9\u304b\u3089\u30e2\u30fc\u30bf\u30fc\u306e\u540d\u677f\u306b\u4e00\u81f4\u3059\u308b\u30c8\u30e9\u30f3\u30b9\u306e\u9069\u7528\u5b9a\u683c\u3092\u6301\u3063\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u30c8\u30e9\u30f3\u30b9\u306e\u6b63\u78ba\u306a\u5b9a\u683c\u3082\u63d0\u4f9b\u3057\u306a\u3044\u304b\u3089\u3067\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u306e\u9069\u7528\u5b9a\u683c\u306f\u3001\u5b9f\u969b\u306b\u306f\u30e2\u30fc\u30bf\u30fc\u304c\u30a4\u30f3\u30d0\u30fc\u30bf\u3068\u3057\u3066\u6d88\u8cbb\u3059\u308b\u898b\u304b\u3051\u306e\u96fb\u529b\u306e\u91cf\u306b\u57fa\u3065\u3044\u3066\u304a\u308a\u3001\u30e2\u30fc\u30bf\u30fc\u306e\u540d\u677f\u306b\u306f\u3053\u308c\u3089\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u3044\u305a\u308c\u3082\u793a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u6210\u529f\u3057\u305f\u30a4\u30f3\u30d0\u30fc\u30bf\u69cb\u6210\u3092\u4f5c\u6210\u3059\u308b\u306b\u306f\u30012\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>\n<blockquote><p>\u7d50\u8ad6\u3068\u3057\u3066\u3001\u30e2\u30fc\u30bf\u30fc\u7d66\u96fb\u30c8\u30e9\u30f3\u30b9\u306e\u9078\u5b9a\u3055\u308c\u305f\u5b9a\u683c\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u306ekVA\u306b\u57fa\u3065\u304f\u3079\u304d\u3067\u3042\u308a\u3001\u305d\u306ekW\u5b9a\u683c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30c8\u30e9\u30f3\u30b9\u3092\u6b63\u78ba\u306b\u30b5\u30a4\u30ba\u3059\u308b\u305f\u3081\u306b\u306f\u30013\u3064\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5b8c\u4e86\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u306ekVA\u5b9a\u683c\u306f\u3001\u6700\u9ad8kVA\u5b9a\u683c\u306e\u30e2\u30fc\u30bf\u30fc\u306e2\u500d\u306e\u5927\u304d\u3055\u3067\u3042\u308a\u3001\u30c8\u30e9\u30f3\u30b9\u306b\u63a5\u7d9a\u3055\u308c\u305f\u3059\u3079\u3066\u306e\u8ca0\u8377\u306e\u5408\u8a08kVA\u5b9a\u683c\u306e1.25\u500d\u306e\u5927\u304d\u3055\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30e2\u30fc\u30bf\u30fc\u306e\u7dcf\u8ca0\u8377\u96fb\u6d41\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u306e\u7dcf\u8ca0\u8377\u96fb\u6d41\u306e65%\u3092\u8d85\u3048\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u30e2\u30fc\u30bf\u30fc\u3092\u59cb\u52d5\u3059\u308b\u969b\u306b\u306f\u3001\u30e2\u30fc\u30bf\u30fc\u306e\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fckVA\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u30c8\u30e9\u30f3\u30b9\u306e\u77ed\u7d61kVA\u3067\u5272\u3063\u305f\u5024\u306e80\u301c85\u30d1\u30fc\u30bb\u30f3\u30c8\u3092\u8d85\u3048\u308b\u96fb\u5727\u964d\u4e0b\u304c\u3042\u3063\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u53ef\u5909\u5468\u6ce2\u6570\u30c9\u30e9\u30a4\u30d6\uff08VFD\uff09\u8ca0\u8377\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u6a19\u6e96\u30c8\u30e9\u30f3\u30b9\u304c6\u30d1\u30eb\u30b9\u6574\u6d41\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u751f\u6210\u3055\u308c\u308b\u9ad8\u8abf\u6ce2\u96fb\u6d41\u3092\u51e6\u7406\u3067\u304d\u306a\u3044\u305f\u3081\u3001K\u5b9a\u683c\u30c8\u30e9\u30f3\u30b9\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p><\/blockquote>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11745\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/10\/Transformers-Are-Sized-to-the-Motor-Drive-kVA-Requirement.webp\" alt=\"\u30c8\u30e9\u30f3\u30b9\u306f\u30e2\u30fc\u30bf\u30fc\u30c9\u30e9\u30a4\u30d6\u306ekVA\u8981\u4ef6\u306b\u5408\u308f\u305b\u3066\u30b5\u30a4\u30ba\u304c\u6c7a\u5b9a\u3055\u308c\u307e\u3059\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>\u30c8\u30e9\u30f3\u30b9\u304ckVA\u3067\u5b9a\u683c\u3055\u308c\u308b\u7406\u7531\u3068kW\u3067\u306f\u306a\u3044\u7406\u7531<\/h2>\n<p>\u5b9a\u683c\u306f\u898b\u304b\u3051\u306e\u96fb\u529b\u3067\u6e2c\u5b9a\u3055\u308c\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u306f\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u8ca0\u8377\u306b\u95a2\u4fc2\u306a\u304f\u5168\u96fb\u6d41\u3092\u51e6\u7406\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u304b\u3089\u3067\u3059\u3002\u640d\u5931\u306f\u4e3b\u306b\u96fb\u6d41\uff08I\u00b2R\u8a08\u7b97\u306b\u57fa\u3065\u304f\u9285\u640d\uff09\u3068\u96fb\u5727\uff08\u30b3\u30a2\u640d\uff09\u306b\u3088\u3063\u3066\u767a\u751f\u3057\u3001\u8ca0\u8377\u304c\u62b5\u6297\u6027\u3067\u3042\u308d\u3046\u3068\u53cd\u5fdc\u6027\u3067\u3042\u308d\u3046\u3068\u95a2\u4fc2\u3042\u308a\u307e\u305b\u3093\u30020.8\u306e\u529b\u7387\u3067\u8ca0\u8377\u306b\u7d66\u96fb\u3059\u308b100 kVA\u306e\u30c8\u30e9\u30f3\u30b9\u306f80 kW\u3092\u63d0\u4f9b\u3057\u30010.95\u306e\u529b\u7387\u3067\u8ca0\u8377\u3092\u63d0\u4f9b\u3059\u308b\u540c\u3058\u30c8\u30e9\u30f3\u30b9\u306f95 kW\u306e\u96fb\u529b\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u96fb\u6d41\u306f\u540c\u3058\u3067\u3059\u304c\u3001\u7d50\u679c\u306f\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n<p>\u3053\u308c\u304c\u3001\u30e2\u30fc\u30bf\u30fc\u8ca0\u8377\u3092\u30c8\u30e9\u30f3\u30b9\u306e\u5bb9\u91cf\u3068\u6bd4\u8f03\u3059\u308b\u524d\u306bkW\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u7406\u7531\u3067\u3059\u3002\u4e09\u76f8\u30e2\u30fc\u30bf\u30fc\u306e\u5834\u5408\uff1a<\/p>\n<p>kVA =\u221a3\u00d7VL-L\u00d7I\/1000<\/p>\n<p>\u5358\u76f8\u306e\u5834\u5408\u306f\u221a3\u3092\u7701\u7565\u3057\u307e\u3059\u3002\u3044\u305a\u308c\u306b\u305b\u3088\u3001\u8a08\u7b97\u306f\u3059\u3079\u3066\u306e\u7d4c\u9a13\u5247\u304c\u9069\u7528\u3055\u308c\u308b\u524d\u306b\u6b63\u78ba\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u305a\u3001\u529b\u7387\u306e\u4eee\u5b9a\u3092\u542b\u3080\u5b8c\u5168\u306a\u65b9\u6cd5\u306f\u3053\u306e\u30ac\u30a4\u30c9\u3067\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/subian-electric.com\/ja\/news\/how-to-calculate-kva-for-three-phase-power-subian-electric-has-the-answer\/\">\u4e09\u76f8\u96fb\u529b\u306ekVA\u3092\u8a08\u7b97\u3059\u308b<\/a>.<\/p>\n<p>\u300ckVA\u8981\u4ef6\u306b\u5408\u308f\u305b\u3066\u30b5\u30a4\u30ba\u8a2d\u5b9a\u3055\u308c\u305f\u300d\u3068\u3044\u3046\u7528\u8a9e\u304c\u898b\u305f\u76ee\u3088\u308a\u3082\u6b63\u78ba\u3067\u3042\u308b\u7406\u7531\u306f\u3001\u5b9a\u7fa9\u306b\u904b\u8ee2\u6642\u306e1\u3064\u306e\u5024\u3001\u59cb\u52d5\u6761\u4ef6\u306e1\u3064\u306e\u5024\u3001\u304a\u3088\u3073\u9ad8\u8abf\u6ce2\u6210\u5206\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u30c8\u30e9\u30f3\u30b9\u306f\u3053\u308c\u30893\u3064\u306e\u5024\u3092\u540c\u6642\u306b\u8010\u3048\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u304b\u3089\u3067\u3059\u3002.<\/p>\n<h2>\u30e2\u30fc\u30bf\u30fc\u304c\u63d0\u4f9b\u3059\u308b4\u3064\u306e\u6570\u5024<\/h2>\n<p>\u3059\u3079\u3066\u306e\u4e0b\u6d41\u306f4\u3064\u306e\u30c7\u30fc\u30bf\u30dd\u30a4\u30f3\u30c8\u304b\u3089\u6765\u3066\u304a\u308a\u3001\u305d\u306e\u3046\u3061\u306e3\u3064\u306f\u9298\u677f\u306b\u3042\u308a\u307e\u3059\u3002\u5404\u6570\u5024\u304c\u5b9a\u683c\u306b\u304a\u3044\u3066\u4f55\u3092\u610f\u5473\u3059\u308b\u304b\u306f\u91cd\u8981\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u30e2\u30fc\u30bf\u30fc\u306e4\u3064\u306e\u6570\u5024\u306f\u30c8\u30e9\u30f3\u30b9\u306e\u6307\u5b9a\u3055\u308c\u308b4\u3064\u306e\u6570\u5024\u3068\u306f\u7570\u306a\u308b\u304b\u3089\u3067\u3059 \u2014 \u3053\u306e\u9055\u3044\u306f\u4ee5\u4e0b\u306e\u6982\u8981\u3067\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/subian-electric.com\/ja\/blog\/what-is-a-kva-transformer\/\">\u30c8\u30e9\u30f3\u30b9\u306ekVA\u5b9a\u683c\u304c\u5b9f\u969b\u306b\u4f55\u3092\u8868\u3057\u3066\u3044\u308b\u304b<\/a>.<\/p>\n<table>\n<tbody>\n<tr>\n<th>\u6570\u5b57<\/th>\n<th>\u3069\u3053\u304b\u3089\u6765\u308b\u306e\u304b<\/th>\n<th>\u4f55\u306b\u4f7f\u7528\u3055\u308c\u308b\u306e\u304b<\/th>\n<\/tr>\n<tr>\n<td>\u5b9a\u683c\u51fa\u529b (kW \u307e\u305f\u306f HP)<\/td>\n<td>\u540d\u677f<\/td>\n<td>\u30b5\u30a4\u30ba\u8a2d\u5b9a\u306e\u6587\u8108\u306e\u307f \u2014 \u30c8\u30e9\u30f3\u30b9\u306e\u8ca0\u8377\u3067\u306f\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>\u5b9a\u683c\u30d5\u30eb\u30ed\u30fc\u30c9\u96fb\u6d41 (FLA)<\/td>\n<td>\u540d\u677f\u3001\u307e\u305f\u306f NEC \u30c6\u30fc\u30d6\u30eb 430.248 \/ 430.250<\/td>\n<td>\u904b\u8ee2 kVA \u3068 125% \u5c0e\u4f53\u30b5\u30a4\u30ba<\/td>\n<\/tr>\n<tr>\n<td>\u30b5\u30fc\u30d3\u30b9\u30d5\u30a1\u30af\u30bf\u30fc\u3068\u52b9\u7387<\/td>\n<td>\u540d\u677f<\/td>\n<td>\u73fe\u5b9f\u7684\u306a\u904b\u8ee2\u9700\u8981<\/td>\n<\/tr>\n<tr>\n<td>NEMA \u30b3\u30fc\u30c9\u30ec\u30bf\u30fc<\/td>\n<td>\u540d\u677f<\/td>\n<td>\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fc kVA \/ \u99ac\u529b \u2014 \u59cb\u52d5\u8ca0\u8377<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>NEMA \u30b3\u30fc\u30c9\u30ec\u30bf\u30fc\u306f\u4eba\u3005\u304c\u30b9\u30ad\u30c3\u30d7\u3059\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u308c\u306f\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fc kVA \/ \u99ac\u529b\u3092\u8868\u3057\u3001\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u5168\u4f53\u30677\u500d\u306e\u5909\u52d5\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11746\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/10\/The-Four-Numbers-a-Motor-Gives-You.webp\" alt=\"\u30e2\u30fc\u30bf\u30fc\u304c\u63d0\u4f9b\u3059\u308b4\u3064\u306e\u6570\u5024\" width=\"1448\" height=\"1086\" \/><\/p>\n<table>\n<tbody>\n<tr>\n<th>\u30b3\u30fc\u30c9\u30ec\u30bf\u30fc<\/th>\n<th>\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fc kVA \/ HP<\/th>\n<th>\u30b3\u30fc\u30c9\u30ec\u30bf\u30fc<\/th>\n<th>\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fc kVA \/ HP<\/th>\n<\/tr>\n<tr>\n<td>A<\/td>\n<td>3.15<\/td>\n<td>J<\/td>\n<td>7.2\u20138.0<\/td>\n<\/tr>\n<tr>\n<td>B<\/td>\n<td>3.16\u20133.55<\/td>\n<td>K<\/td>\n<td>8.1\u20139.0<\/td>\n<\/tr>\n<tr>\n<td>E<\/td>\n<td>4.6\u20135.0<\/td>\n<td>L<\/td>\n<td>9.1\u201310.0<\/td>\n<\/tr>\n<tr>\n<td>F<\/td>\n<td>5.1\u20135.6<\/td>\n<td>M<\/td>\n<td>10.1\u201311.2<\/td>\n<\/tr>\n<tr>\n<td><strong>G<\/strong><\/td>\n<td><strong>5.7\u20136.3<\/strong><\/td>\n<td>N<\/td>\n<td>11.3\u201312.5<\/td>\n<\/tr>\n<tr>\n<td>H<\/td>\n<td>6.4\u20137.1<\/td>\n<td>P \u304a\u3088\u3073\u305d\u308c\u4ee5\u4e0a<\/td>\n<td>12.6\u201322.4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>NEMA \u30b3\u30fc\u30c9 G \u306f\u3001\u307b\u3068\u3093\u3069\u306e\u7523\u696d\u7528\u30e2\u30fc\u30bf\u30fc\u304c\u305d\u306e\u57fa\u6e96\u306e\u4e0b\u3067\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001NEMA \u88fd\u9020\u8005\u57fa\u6e96 B \u8a2d\u8a08\u306b\u6e96\u62e0\u3057\u305f\u30e2\u30fc\u30bf\u30fc\u3092\u6307\u3057\u307e\u3059\u3002NEMA \u30b3\u30fc\u30c9 A \u306f\u3001\u4f4e\u3044\u59cb\u52d5\u96fb\u6d41\u3092\u6301\u3064\u30e2\u30fc\u30bf\u30fc\u3092\u6307\u5b9a\u3057\u3001\u30b3\u30fc\u30c9 N \u4ee5\u4e0a\u306f\u904b\u8ee2\u8ca0\u8377\u306b\u57fa\u3065\u3044\u3066\u8a2d\u8a08\u3055\u308c\u305f\u30c8\u30e9\u30f3\u30b9\u306b\u5927\u304d\u306a\u8ca0\u62c5\u3092\u304b\u3051\u308b\u30e2\u30fc\u30bf\u30fc\u3092\u5206\u985e\u3057\u307e\u3059\u3002.<\/p>\n<p>\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fc kVA = HP \u00d7 kVA\/HP \u306e\u5f0f\u306f\u3001\u3053\u306e\u5834\u5408\u3001\u30b3\u30fc\u30c9 G \u306e 5 HP \u306b\u5bfe\u3057\u3066 30 kVA \u306e kVA \u3092\u4e0e\u3048\u3001\u904b\u8ee2\u8ca0\u8377\u306f 6.4 kVA \u3092\u8981\u6c42\u3057\u30015 \u306e\u4fc2\u6570\u3092\u6301\u3064\u305f\u3081\u3001\u904b\u8ee2\u8ca0\u8377\u306e\u307f\u306b\u57fa\u3065\u304f\u8a08\u7b97\u306f\u3053\u306e\u4fc2\u6570\u306b\u3088\u3063\u3066\u9593\u9055\u3063\u3066\u3044\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n<h2>\u59cb\u52d5\u65b9\u6cd5\u306f\u30e2\u30fc\u30bf\u30fc\u30b5\u30a4\u30ba\u3088\u308a\u3082\u7b54\u3048\u3092\u5909\u3048\u308b\u3002<\/h2>\n<p>\u540c\u3058\u30e2\u30fc\u30bf\u30fc\u304c4\u3064\u306e\u7570\u306a\u308b\u65b9\u6cd5\u3067\u5b9f\u884c\u3055\u308c\u308b\u3068\u3001\u30c8\u30e9\u30f3\u30b9\u306b\u5bfe\u3057\u30664\u3064\u306e\u7570\u306a\u308b\u8ca0\u8377\u30b1\u30fc\u30b9\u304c\u63d0\u793a\u3055\u308c\u3001\u3053\u3053\u3067\u4ed5\u69d8\u3092\u6539\u5584\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u30c8\u30e9\u30f3\u30b9\u306b\u304a\u91d1\u3092\u6295\u8cc7\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<table>\n<tbody>\n<tr>\n<th>\u59cb\u52d5\u65b9\u6cd5<\/th>\n<th>FLA\u306e\u96fb\u6d41\u500d\u6570<\/th>\n<th>\u304a\u304a\u3088\u305d\u306e\u59cb\u52d5kVA<\/th>\n<th>\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5<\/th>\n<\/tr>\n<tr>\n<td>\u76f4\u63a5\u63a5\u7d9a\uff08DOL\uff09<\/td>\n<td>6\u20138\u00d7<\/td>\n<td>5\u20137\u00d7\u904b\u8ee2kVA<\/td>\n<td>\u30d5\u30eb\u30d6\u30ec\u30fc\u30af\u30a2\u30a6\u30a7\u30a4\u30c8\u30eb\u30af\uff1b\u30c8\u30e9\u30f3\u30b9\u306b\u3068\u3063\u3066\u6700\u60aa<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30bf\u30fc\u30c7\u30eb\u30bf<\/td>\n<td>2\u20133\u00d7<\/td>\n<td>2\u20133\u00d7\u904b\u8ee2kVA<\/td>\n<td>\u59cb\u52d5\u30c8\u30eb\u30af\u3092\u7d043\u5206\u306e1\u306b\u524a\u6e1b<\/td>\n<\/tr>\n<tr>\n<td>\u30bd\u30d5\u30c8\u30b9\u30bf\u30fc\u30bf<\/td>\n<td>1.5\u20134\u00d7<\/td>\n<td>2\u20133\u00d7\u904b\u8ee2kVA<\/td>\n<td>\u8abf\u6574\u53ef\u80fd\u306a\u30e9\u30f3\u30d7\u3001\u6a5f\u68b0\u7684\u30b9\u30c8\u30ec\u30b9\u306e\u4f4e\u6e1b<\/td>\n<\/tr>\n<tr>\n<td>VFD<\/td>\n<td>1\u20131.5\u00d7<\/td>\n<td>1\u20131.5\u00d7\u904b\u8ee2kVA<\/td>\n<td>\u30cf\u30fc\u30e2\u30cb\u30af\u30b9\u304cK\u6307\u5b9a\u30c8\u30e9\u30f3\u30b9\u3092\u5f37\u5236\u3059\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u7c21\u5358\u306b\u8a00\u3048\u3070\u3001\u76f4\u63a5\u63a5\u7d9a\u30e2\u30fc\u30bf\u30fc\u306bVFD\u3092\u8a2d\u7f6e\u3059\u308b\u3053\u3068\u3067\u3001\u30c8\u30e9\u30f3\u30b9\u306e\u5fc5\u8981\u6027\u3092\u5927\u5e45\u306b\u524a\u6e1b\u3067\u304d\u3001\u30b3\u30b9\u30c8\u306f\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u6b21\u306b\u5927\u304d\u3044\u30c8\u30e9\u30f3\u30b9\u3088\u308a\u3082\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u3001\u59cb\u52d5\u6280\u8853\u3092\u30b5\u30a4\u30ba\u6c7a\u5b9a\u6642\u306b\u8003\u616e\u3059\u3079\u304d\u7406\u7531\u3067\u3042\u308a\u3001\u5236\u5fa1\u30d1\u30cd\u30eb\u3092\u9078\u629e\u3059\u308b\u969b\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<p>\u554f\u984c\u306f\u3001VFD\u6280\u8853\u3092\u30c8\u30e9\u30f3\u30b9\u306e\u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3059\u308b\u65b9\u6cd5\u3068\u3057\u3066\u8003\u3048\u308b\u3053\u3068\u304b\u3089\u751f\u3058\u307e\u3059\u3002\u3053\u306e\u6280\u8853\u306f\u7a81\u5165\u96fb\u6d41\u306e\u554f\u984c\u3092\u6392\u9664\u3057\u307e\u3059\u304c\u3001\u30cf\u30fc\u30e2\u30cb\u30af\u30b9\u306e\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u6a19\u6e96\u306e15 kVA\u30c8\u30e9\u30f3\u30b9\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u304c\u5b9a\u683c\u5bb9\u91cf\u306b\u9054\u3059\u308b\u524d\u306b\u30015\u6b21\u304a\u3088\u30737\u6b21\u30cf\u30fc\u30e2\u30cb\u30af\u30b9\u306e\u305f\u3081\u306b\u904e\u71b1\u3057\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u3088\u308a\u5927\u304d\u306a\u30c8\u30e9\u30f3\u30b9\u306e\u4ee3\u308f\u308a\u306bK\u6307\u5b9a\u30c8\u30e9\u30f3\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3079\u304d\u3067\u3059\u3002.<\/p>\n<h2>\u4e09\u3064\u306e\u30b5\u30a4\u30ba\u6c7a\u5b9a\u30eb\u30fc\u30eb\u3068\u305d\u308c\u305e\u308c\u306e\u51fa\u6240<\/h2>\n<p>\u73fe\u5834\u3067\u4f7f\u7528\u3055\u308c\u308b\u4e09\u3064\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u3042\u308a\u3001\u305d\u308c\u305e\u308c\u72ec\u81ea\u306e\u61f8\u5ff5\u306b\u5bfe\u51e6\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u826f\u3044\u8a2d\u8a08\u306f\u3053\u308c\u3089\u4e09\u3064\u3059\u3079\u3066\u3092\u5c0a\u91cd\u3057\u307e\u3059\u3002.<\/p>\n<ul>\n<li>2\u00d7\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3002\u3053\u308c\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u306ekVA\u306f\u6700\u5927\u30e2\u30fc\u30bf\u30fc\u306e\u904b\u8ee2kVA\u306e\u5c11\u306a\u304f\u3068\u30822\u500d\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u8ff0\u3079\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u76f4\u63a5\u63a5\u7d9a\u306e\u8d77\u52d5\u6642\u306e\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fc\u30b5\u30fc\u30b8\u3001\u540c\u6642\u30b7\u30e3\u30d5\u30c8\u307e\u305f\u306f\u88dc\u52a9\u6a5f\u5668\u306e\u8d77\u52d5\u3001\u30e2\u30fc\u30bf\u30fc\u304c\u56de\u8ee2\u3092\u59cb\u3081\u308b\u524d\u306e\u30c8\u30e9\u30f3\u30b9\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306b\u3088\u308b\u96fb\u5727\u964d\u4e0b\u3092\u8003\u616e\u3057\u305f\u73fe\u5834\u306e\u57fa\u672c\u7684\u306a\u4e8b\u5b9f\u30eb\u30fc\u30eb\u3067\u3059\u3002.<\/li>\n<li>25\u00d7\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3002\u3053\u308c\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u306ekVA\u306f\u63a5\u7d9a\u3055\u308c\u305f\u7dcf\u8ca0\u8377kVA\u306e\u5c11\u306a\u304f\u3068\u3082125%\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u8ff0\u3079\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3059\u3079\u3066\u304c\u30aa\u30f3\u306e\u3068\u304d\u306b\u30c8\u30e9\u30f3\u30b9\u306e\u904e\u8ca0\u8377\u3092\u9632\u304e\u307e\u3059\u3002.<\/li>\n<li>65%\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3002\u3053\u308c\u306f\u3001\u30e2\u30fc\u30bf\u30fc\u306e\u30d5\u30eb\u30ed\u30fc\u30c9\u96fb\u6d41\u304c\u30c8\u30e9\u30f3\u30b9\u306e\u30d5\u30eb\u30ed\u30fc\u30c9\u96fb\u6d41\u306e\u7d0465%\u3092\u8d85\u3048\u3066\u306f\u306a\u3089\u306a\u3044\u3068\u8ff0\u3079\u3066\u3044\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u4e0a\u8a18\u306e\u4e8c\u3064\u306e\u3046\u3061\u306e\u5927\u304d\u3044\u5024\u3092\u53d6\u308a\u3001\u30eb\u30fc\u30eb\u756a\u53f73\u3092\u9069\u7528\u3057\u307e\u3059\u3002\u30eb\u30fc\u30eb2\u306f\u4e3b\u8981\u306a\u30e2\u30fc\u30bf\u30fc\u304c1\u3064\u306e\u5834\u5408\u306b\u9069\u7528\u3055\u308c\u3001\u30eb\u30fc\u30eb1\u306f\u5c0f\u3055\u306a\u30e2\u30fc\u30bf\u30fc\u304c\u591a\u6570\u3042\u308b\u5834\u5408\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002.<\/p>\n<table>\n<tbody>\n<tr>\n<th>\u30e2\u30fc\u30bf\u30fc<\/th>\n<th>\u904b\u8ee2kVA\uff08\u304a\u304a\u3088\u305d\uff09<\/th>\n<th>2\u00d7\u30eb\u30fc\u30eb<\/th>\n<th>\u5b9f\u7528\u7684\u306a\u5728\u5eab\u30b5\u30a4\u30ba<\/th>\n<\/tr>\n<tr>\n<td>7 kW \/ 5 HP<\/td>\n<td>~5 kVA<\/td>\n<td>10 kVA<\/td>\n<td>??\u305f\u306f15 kVA<\/td>\n<\/tr>\n<tr>\n<td>5 kW \/ 7.5 HP<\/td>\n<td>~7 kVA<\/td>\n<td>14 kVA<\/td>\n<td>15 kVA<\/td>\n<\/tr>\n<tr>\n<td>5 kW \/ 10 HP<\/td>\n<td>~10 kVA<\/td>\n<td>20 kVA<\/td>\n<td>??\u305f\u306f25 kVA<\/td>\n<\/tr>\n<tr>\n<td>11 kW \/ 15 HP<\/td>\n<td>~14 kVA<\/td>\n<td>28 kVA<\/td>\n<td>30 kVA<\/td>\n<\/tr>\n<tr>\n<td>15 kW \/ 20 HP<\/td>\n<td>~19 kVA<\/td>\n<td>38 kVA<\/td>\n<td>45 kVA<\/td>\n<\/tr>\n<tr>\n<td>22 kW \/ 30 HP<\/td>\n<td>~28 kVA<\/td>\n<td>56 kVA<\/td>\n<td>??\u305f\u306f75 kVA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u305d\u306e\u5f8c\u306f\u5e38\u306b\u6b21\u306e\u6a19\u6e96\u30b5\u30a4\u30ba\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u3064\u306ekVA\u30b5\u30a4\u30ba\u3068\u6b21\u306e\u30b5\u30a4\u30ba\u306e\u4fa1\u683c\u5dee\u306f\u3001\u30c4\u30fc\u30eb\u5909\u66f4\u306e\u904e\u6e21\u3001\u52a0\u901f\/\u6e1b\u901f\u518d\u751f\u30b7\u30b9\u30c6\u30e0\u3001\u5c06\u6765\u306e\u30e2\u30fc\u30bf\u30fc\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u306e\u30b3\u30b9\u30c8\u306b\u6bd4\u3079\u3066\u5c0f\u3055\u3044\u3067\u3059\u3002.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11747\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/10\/transformer-sizing-for-motors.webp\" alt=\"\u30e2\u30fc\u30bf\u30fc\u7528\u30c8\u30e9\u30f3\u30b9\u306e\u30b5\u30a4\u30ba\u9078\u5b9a\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>\u5b9f\u4f8b: 5 HP\u3001\u5358\u76f8\u3001\u9ad8\u6163\u6027\u8ca0\u8377<\/h2>\n<p>5\u99ac\u529b\uff085 HP\uff09\u3001230\u30dc\u30eb\u30c8\uff08V\uff09\u306e\u5358\u76f8\u30e2\u30fc\u30bf\u30fc\u304c\u5f80\u5fa9\u5727\u7e2e\u6a5f\u3092\u99c6\u52d5\u3057\u3066\u3044\u307e\u3059\u3002\u5727\u7e2e\u6a5f\u306e\u6163\u6027\u306e\u305f\u3081\u3001\u30e2\u30fc\u30bf\u30fc\u306f\u52d5\u4f5c\u3059\u308b\u524d\u306b\u6570\u79d2\u9593\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fc\u72b6\u614b\u306b\u7559\u307e\u308a\u307e\u3059\u3002.<\/p>\n<ul>\n<li>\u52d5\u4f5c\u96fb\u6d41\u3002\u56fd\u5bb6\u96fb\u6c17\u898f\u5247\uff08NEC\uff09\u8868430.248\u306f\u30015 HP\u3001230 V\u306e\u5358\u76f8\u30e2\u30fc\u30bf\u30fc\u306b\u5bfe\u3057\u306628\u30a2\u30f3\u30da\u30a2\uff0828 A\uff09\u306e\u52d5\u4f5c\u96fb\u6d41\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002.<\/li>\n<li>\u52d5\u4f5ckVA\u3002\u5f0f\u306f230\u30dc\u30eb\u30c8\u306b28\uff0828 A\uff09\u3092\u639b\u3051\u30011000\u3067\u5272\u308b\u3068kVA\u306f6.44\uff086.44 kVA\uff09\u306b\u306a\u308a\u307e\u3059\u3002.<\/li>\n<li>\u540d\u677f\u78ba\u8a8d\u3002\u56fd\u5bb6\u96fb\u6c17\u88fd\u9020\u696d\u8005\u5354\u4f1a\uff08NEMA\uff09\u30b3\u30fc\u30c9\u306fG\u3067\u3042\u308a\u3001\u3053\u308c\u306f\u5404\u99ac\u529b\u306b\u5bfe\u3057\u30665.7\u304b\u30896.3 kVA\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u30026\uff086\uff09kVA\u304c\u5e73\u5747\u3068\u3057\u3066\u9078\u3070\u308c\u308b\u3079\u304d\u3067\u3059\u3002.<\/li>\n<li>\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fckVA\u3002kVA\u306f5 HP\u306b6 kVA\u3092\u639b\u3051\u305f\u3082\u306e\u3067\u300130 kVA\u306b\u7b49\u3057\u3044\u3067\u3059\u3002.<\/li>\n<li>5\uff087.5\uff09kVA\u30c8\u30e9\u30f3\u30b9\u3067\u306e\u30c6\u30b9\u30c8\u3002\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f4.5\u30d1\u30fc\u30bb\u30f3\u30c8\uff084.5%\uff09\u3067\u3042\u308b\u305f\u3081\u3001\u77ed\u7d61kVA\u306f7.5\u30920.045\u3067\u5272\u3063\u305f\u5024\u3067\u3001167 kVA\u306b\u306a\u308a\u307e\u3059\u3002\u96fb\u5727\u964d\u4e0b\u306f30\u3092167\u3067\u5272\u3063\u305f\u5024\u3067\u300118\uff0818%\uff09\u306b\u306a\u308a\u307e\u3059\u3002.<\/li>\n<li>\u5341\u4e94\uff0815\uff09kVA\u306e\u5909\u5727\u5668\u3067\u306e\u30c6\u30b9\u30c8\u3002\u77ed\u7d61kVA\u306f\u5341\u4e94\u3092\u30bc\u30ed\u70b9\u96f6\u56db\u4e94\u3067\u5272\u3063\u305f\u3082\u306e\u3067\u3001\u4e09\u767e\u4e09\u5341\u4e09\uff08333 kVA\uff09\u306b\u306a\u308a\u307e\u3059\u3002\u96fb\u5727\u964d\u4e0b\u306f\u4e09\u5341\u3092\u4e09\u767e\u4e09\u5341\u4e09\u3067\u5272\u3063\u305f\u3082\u306e\u3067\u3001\u4e5d\uff089%\uff09\u3067\u3059\u3002.<\/li>\n<li>65%\u30eb\u30fc\u30eb\u306e\u554f\u984c\u306f\u91cd\u8981\u3067\u3059\u3002\u5341\u4e94\uff0815 kVA\uff09\u5909\u5727\u5668\u306e\u5834\u5408\u306e\u5909\u5727\u5668\u306e\u5b9a\u683c\u8ca0\u8377\u96fb\u6d41\u306f\u516d\u5341\u4e94\u30a2\u30f3\u30da\u30a2\uff0865 A\uff09\u3067\u3059\u3002\u30e2\u30fc\u30bf\u30fc\u306e\u5b9a\u683c\u8ca0\u8377\u96fb\u6d41\u306f\u4e8c\u5341\u516b\u30a2\u30f3\u30da\u30a2\uff0828 A\uff09\u3067\u3042\u308a\u3001\u3053\u308c\u306f\u4ed6\u306e\u30e2\u30fc\u30bf\u30fc\u306e\u56db\u5341\u4e09\u30d1\u30fc\u30bb\u30f3\u30c8\uff0843%\uff09\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p>\u904b\u8ee2\u8ca0\u8377\u306e\u7d50\u679c\u306f\u3001\u4e03\u70b9\u4e94\uff087.5 kVA\uff09\u5909\u5727\u5668\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u59cb\u52d5\u8ca0\u8377\u306b\u306f\u5341\u4e94\uff0815 kVA\uff09\u5909\u5727\u5668\u304c\u5fc5\u8981\u3067\u3059\u3002\u4e21\u8005\u306e\u30ae\u30e3\u30c3\u30d7\u304c\u8b70\u8ad6\u306e\u57fa\u672c\u7684\u306a\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002.<\/p>\n<p>\u8a08\u7b97\u306b\u95a2\u3059\u308b\u8b66\u544a\uff1a\u96fb\u5727\u964d\u4e0b\u306f\u3001Vd = (\u7a81\u5165kVA \u00f7 \u5909\u5727\u5668\u306e\u77ed\u7d61kVA \u00d7 100)\u3068\u3044\u3046\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002\u5358\u4f4d\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304c\u56db\u70b9\u4e94\uff084.5\uff09\u306e\u5909\u5727\u5668\u306f\u3001\u305d\u306e\u5bb9\u91cf\u306e\u7d04\u4e8c\u5341\u4e8c\u500d\u306e\u77ed\u7d61\u5bb9\u91cf\u3092\u6301\u3061\u3001\u4e09\u5341\uff0830 kVA\uff09\u306e\u7a81\u5165kVA\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u4e8c\u3064\u306e\u540c\u3058\u5bb9\u91cf\u306e\u5909\u5727\u5668\u306f\u3001\u7570\u306a\u308b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u7387\u306e\u305f\u3081\u306b\u7570\u306a\u308b\u96fb\u5727\u964d\u4e0b\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h2>\u5b9f\u4f8b\uff1a10 HP\u3001\u4e09\u76f8\u3001VFD\u3067<\/h2>\n<p>\u5b9a\u683c10 HP\u3001460 V\u300114 A\u306e\u5b9a\u683c\u8ca0\u8377\u96fb\u6d41\u3092\u6301\u3064\u4e09\u76f8\u30e2\u30fc\u30bf\u30fc\u304cVFD\u3067\u904b\u8ee2\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n<ul>\n<li>\u904b\u8ee2kVA\u3092\u8a08\u7b97\u3059\u308b\u305f\u3081\u306e\u5f0f\u306f\u3001\u904b\u8ee2kVA = 1.732 \u00d7 460 \u00d7 14 \u00f7 1,000 = 11.16 kVA\u3067\u3059\u3002.<\/li>\n<li>\u30e2\u30fc\u30bf\u30fc\u304cVFD\u3092\u4f7f\u7528\u3057\u3066\u59cb\u52d5\u3055\u308c\u308b\u3068\u3001\u59cb\u52d5\u96fb\u6d41\u306f\u5b9a\u683c\u8ca0\u8377\u96fb\u6d41\u306e1-1.5\u500d\u306b\u5236\u9650\u3055\u308c\u3001\u3057\u305f\u304c\u3063\u3066\u59cb\u52d5kVA\u306f11\u301c17 kVA\u306e\u7bc4\u56f2\u306b\u306a\u308a\u307e\u3059\u3002.<\/li>\n<li>\u904e\u6e21\u73fe\u8c61\u306b\u5bfe\u3057\u30662\u500d\u306e\u5b89\u5168\u4fc2\u6570\u304c\u9069\u7528\u3055\u308c\u308b\u305f\u3081\u30012\u00d7 11.16 = 22 kVA\u304c\u3053\u306e\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u4f7f\u7528\u3055\u308c\u308b\u5909\u5727\u5668\u306e\u5b9f\u969b\u306ekVA\u306f25 kVA\u306b\u306a\u308a\u307e\u3059\u3002.<\/li>\n<li>\u9ad8\u8abf\u6ce2\u306e\u554f\u984c\u304c\u767a\u751f\u3057\u307e\u3059\u30026\u30d1\u30eb\u30b9\u6574\u6d41\u5668\u306f\u3001\u5f37\u30445\u6b21\u304a\u3088\u30737\u6b21\u9ad8\u8abf\u6ce2\u3092\u6301\u3064\u6b6a\u3093\u3060\u96fb\u6d41\u3092\u751f\u6210\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5bfe\u5fdc\u3059\u308b\u5909\u5727\u5668\u306fK\u3068\u3057\u3066\u5b9a\u683c\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<li>\u4e2d\u6027\u7dda\u306b\u3064\u3044\u3066\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e09\u91cd\u9ad8\u8abf\u6ce2\u306f\u4e2d\u6027\u7dda\u306b\u84c4\u7a4d\u3055\u308c\u3001\u304a\u4e92\u3044\u306b\u6253\u3061\u6d88\u3057\u5408\u3046\u3053\u3068\u306f\u306a\u3044\u305f\u3081\u3001\u5909\u5727\u5668\u306e\u5bfe\u5fdc\u3059\u308bK\u5b9a\u683c\u306f200%\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002.<\/li>\n<\/ul>\n<h2>\u96fb\u5727\u964d\u4e0b\uff1a\u5b9f\u969b\u306b\u6c7a\u5b9a\u3059\u308b\u5236\u7d04<\/h2>\n<p>\u5909\u5727\u5668\u304c\u71b1\u7684\u306b\u5341\u5206\u3067\u3042\u3063\u3066\u3082\u3001\u30e2\u30fc\u30bf\u30fc\u304c\u305d\u306e\u4ed5\u4e8b\u3092\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u306b\u5236\u9650\u3055\u308c\u308b\u305f\u3081\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u6b63\u5e38\u306b\u6a5f\u80fd\u3057\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002NEMA\u30c7\u30b6\u30a4\u30f3B\u30e2\u30fc\u30bf\u30fc\u306f\u3001\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fc\u6642\u306b\u5b9a\u683c\u8ca0\u8377\u96fb\u6d41\u306e5\u301c7\u500d\u3092\u5f15\u304d\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u56de\u8ee2\u3092\u59cb\u3081\u308b\u3068\u6e1b\u5c11\u3057\u307e\u3059\u3002\u30d5\u30a3\u30fc\u30c0\u30fc\u3068\u5909\u5727\u5668\u306e\u5408\u6210\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304c\u30e2\u30fc\u30bf\u30fc\u96fb\u5727\u3092\u540d\u76ee\u5024\u306e80.%\u672a\u6e80\u306b\u4fdd\u3064\u3068\u3001\u30d6\u30ec\u30fc\u30af\u30c0\u30a6\u30f3\u30c8\u30eb\u30af\u304c\u5931\u6557\u3057\u3001\u30e2\u30fc\u30bf\u30fc\u304c\u30b9\u30bf\u30fc\u30eb\u3057\u307e\u3059\u3002.<\/p>\n<p>\u30bd\u30d5\u30c8\u306a\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u3092\u30e2\u30fc\u30bf\u30fc\u306e\u8fd1\u304f\u306b\u914d\u7f6e\u3059\u308b\u3053\u3068\u3067\u30d5\u30a3\u30fc\u30c0\u30fc\u306e\u9577\u3055\u304c\u77ed\u304f\u306a\u308a\u3001\u5168\u4f53\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u306e\u30b5\u30a4\u30ba\u3092\u5927\u304d\u304f\u3059\u308b\u969b\u306b\u306f\u3001\u305d\u306e\u7d50\u679c\u3068\u3057\u3066\u306e\u30b3\u30b9\u30c8\u524a\u6e1b\u3092\u8a8d\u8b58\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u307e\u305f\u3001\u59cb\u52d5\u65b9\u6cd5\u3082\u3001\u30bd\u30d5\u30c8\u30b9\u30bf\u30fc\u30c8\uff08FLA\u306e2\u301c4\u500d\uff09\u3084VFD\uff08FLA\u306e1\u301c1.5\u500d\uff09\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u5b89\u4fa1\u306a\u89e3\u6c7a\u7b56\u306e\u4e00\u3064\u3067\u3059\u3002.<\/p>\n<p>\u8a31\u5bb9\u3055\u308c\u308b\u96fb\u5727\u964d\u4e0b\u306e\u6570\u5024\u306f\u3001\u4e0b\u6d41\u306e\u6a5f\u5668\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u30e2\u30fc\u30bf\u30fc\u306f\u7d0415\u301c20\u30d1\u30fc\u30bb\u30f3\u30c8\u306e\u96fb\u5727\u964d\u4e0b\u306b\u8010\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002VFD\u306b\u95a2\u3057\u3066\u306f\u3001\u96fb\u5727\u964d\u4e0b\u304c\u7d0410\u301c15\u30d1\u30fc\u30bb\u30f3\u30c8\u306e\u72b6\u6cc1\u3067\u306f\u3001\u306f\u308b\u304b\u306b\u56f0\u96e3\u306a\u72b6\u6cc1\u306b\u76f4\u9762\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001VFD\u3068\u30e2\u30fc\u30bf\u30fc\u304c\u540c\u3058\u30c8\u30e9\u30f3\u30b9\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u3088\u308a\u53b3\u3057\u3044\u8981\u4ef6\u306b\u6e96\u62e0\u3059\u308b\u65b9\u304c\u826f\u3044\u3067\u3059\u3002.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11748\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/10\/Voltage-Dip-The-Constraint-That-Actually-Decides.webp\" alt=\"\u96fb\u5727\u964d\u4e0b \u5b9f\u969b\u306b\u6c7a\u5b9a\u3059\u308b\u5236\u7d04\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>\u65e2\u5b58\u306e\u30c8\u30e9\u30f3\u30b9\u306e\u30c1\u30a7\u30c3\u30af<\/h2>\n<p>\u5927\u534a\u306e\u5834\u5408\u3001\u30ec\u30c8\u30ed\u30d5\u30a3\u30c3\u30c8\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306f\u30bc\u30ed\u304b\u3089\u59cb\u307e\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u901a\u5e38\u306e\u30bf\u30b9\u30af\u306f\u3001\u5229\u7528\u53ef\u80fd\u306a\u30c8\u30e9\u30f3\u30b9\u304c\u3082\u3046\u4e00\u3064\u306e\u30e2\u30fc\u30bf\u30fc\u3092\u53d7\u3051\u5165\u308c\u3089\u308c\u308b\u304b\u3069\u3046\u304b\u3067\u3059\u3002.<\/p>\n<ul>\n<li>\u307e\u305a\u3001\u540d\u677f\u306ekVA\u3068\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\uff08\u4eee\u5b9a\u5024\u3067\u306f\u306a\u304f\uff09\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/li>\n<li>\u6b21\u306b\u3001\u65b0\u3057\u3044\u30e2\u30fc\u30bf\u30fc\u3092\u542b\u3080\u4e8c\u6b21\u5074\u306e\u5168\u8ca0\u8377\u306e\u904b\u8ee2kVA\u3092\u5408\u8a08\u3057\u307e\u3059\u3002.<\/li>\n<li>\u305d\u306e\u5f8c\u3001\u59cb\u52d5\u30b3\u30fc\u30c9\u30ec\u30bf\u30fc\u306b\u5f93\u3063\u3066\u6700\u5927\u30e2\u30fc\u30bf\u30fc\u306e\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fckVA\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002.<\/li>\n<li>\u6b21\u306b\u3001\u30c8\u30e9\u30f3\u30b9\u306e\u77ed\u7d61kVA\u306b\u57fa\u3065\u3044\u3066\u96fb\u5727\u964d\u4e0b\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002.<\/li>\n<li>\u305d\u306e\u5f8c\u3001\u7dcf\u8ca0\u8377\u306b\u5bfe\u3057\u306665%\u306e\u96fb\u6d41\u30eb\u30fc\u30eb\u304c\u9075\u5b88\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/li>\n<li>\u6700\u5f8c\u306b\u3001\u4e88\u60f3\u3055\u308c\u308b\u7a3c\u50cd\u30b5\u30a4\u30af\u30eb\u306b\u304a\u3051\u308b\u71b1\u7684\u4f59\u88d5\u3092\u4e00\u7b87\u6240\u3060\u3051\u3067\u306a\u304f\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p>\u3082\u3057\u7b54\u3048\u304c\u5883\u754c\u7dda\u4e0a\u3067\u3042\u308c\u3070\u3001\u4e09\u3064\u306e\u53ef\u80fd\u306a\u30b9\u30c6\u30c3\u30d7\u306e\u3044\u305a\u308c\u304b\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059 \u2014 \u59cb\u52d5\u65b9\u6cd5\u3092\u5909\u66f4\u3059\u308b\u3001\u65b0\u3057\u3044\u30e2\u30fc\u30bf\u30fc\u7528\u306b\u5225\u306e\u30c8\u30e9\u30f3\u30b9\u3092\u8a2d\u7f6e\u3059\u308b\u3001\u307e\u305f\u306f\u6e1b\u5c11\u3057\u305f\u7a3c\u50cd\u3067\u4f5c\u696d\u3059\u308b\u3053\u3068\u306b\u540c\u610f\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u73fe\u5728\u306e\u30c8\u30e9\u30f3\u30b9\u304c\u307e\u3060\u6545\u969c\u3057\u3066\u3044\u306a\u3044\u304b\u3089\u3068\u3044\u3063\u3066\u3001\u4f59\u5270\u5bb9\u91cf\u304c\u3042\u308b\u3068\u4eee\u5b9a\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093 \u2014 \u7d76\u7e01\u52a3\u5316\u306e\u7a2e\u985e\u306f\u76ee\u306b\u898b\u3048\u307e\u305b\u3093\u304c\u3001\u7d50\u679c\u306f\u901a\u5e38\u6b21\u306e\u6691\u3044\u5b63\u7bc0\u306b\u73fe\u308c\u307e\u3059\u3002\u305d\u306e\u8a55\u4fa1\u306e\u6b63\u5f0f\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u3001\u3053\u306e\u65b9\u6cd5\u3067\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/subian-electric.com\/ja\/news\/how-to-determine-if-a-transformer-meets-capacity-requirements\/\">\u30c8\u30e9\u30f3\u30b9\u304c\u5bb9\u91cf\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u305f\u3081\u306e<\/a>.<\/p>\n<h2>\u71b1\u7684\u4f59\u88d5\u306880%\u30eb\u30fc\u30eb<\/h2>\n<p>\u30c8\u30e9\u30f3\u30b9\u306f\u901a\u5e38\u3001\u9023\u7d9a\u904b\u8ee2\u306e\u305f\u3081\u306b\u5b9a\u683c\u5bb9\u91cf\u306e\u7d0480%\u3067\u904b\u8ee2\u3055\u308c\u3001\u3053\u308c\u306b\u3088\u308a\u5468\u56f2\u6761\u4ef6\u306e\u5909\u52d5\u3001\u30cf\u30fc\u30e2\u30cb\u30af\u30b9\u640d\u5931\u3001\u304a\u3088\u3073\u6642\u6298\u306e\u904e\u8ca0\u8377\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002\u3053\u308c\u304c\u30c8\u30e9\u30f3\u30b9\u8a2d\u8a08\u306e\u300c80%\u30eb\u30fc\u30eb\u300d\u306e\u672c\u8cea\u3067\u3059\u3002.<\/p>\n<p>\u3053\u306e\u30eb\u30fc\u30eb\u306f\u3001\u30e2\u30fc\u30bf\u30fc\u306e\u5834\u5408\u306e\u3088\u3046\u306b\u9023\u7d9a\u8ca0\u8377\u3088\u308a\u3082\u30e2\u30fc\u30bf\u30fc\u3092\u6271\u3046\u969b\u306b\u3088\u308a\u95a2\u9023\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30e2\u30fc\u30bf\u30fc\u8ca0\u8377\u306e\u904b\u8ee2\u306f\u30b5\u30a4\u30af\u30eb\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u5de5\u4f5c\u6a5f\u68b0\u306f\u5e73\u5747\u3057\u306660%\u306e\u8ca0\u8377\u3067\u52d5\u4f5c\u3057\u3001\u91cd\u5207\u524a\u4e2d\u306b\u306f150%\u306e\u30d4\u30fc\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u306f\u3001\u30bf\u30f3\u30af\u304c\u6e80\u305f\u3055\u308c\u308b\u307e\u3067100%\u3067\u52d5\u4f5c\u3057\u3001\u305d\u306e\u5f8c\u306f\u30a2\u30a4\u30c9\u30eb\u72b6\u614b\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001\u4e0a\u8a18\u306e\u3059\u3079\u3066\u306e\u30b7\u30ca\u30ea\u30aa\u306f1\u3064\u306e\u6570\u5b66\u7684\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u8aac\u660e\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u306e\u305f\u3081\u3001\u30b5\u30a4\u30af\u30eb\u30e2\u30fc\u30c9\u306f\u901a\u5e38\u3001kVA\u5b9a\u683c\u3088\u308a\u3082\u512a\u308c\u305f\u71b1\u5de5\u5b66\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u6e29\u5ea6\u4e0a\u6607\u306e\u4f4e\u4e0b\u3001\u51b7\u5374\u306e\u6539\u5584\u3001\u30b5\u30a4\u30af\u30ea\u30f3\u30b0\u904b\u8ee2\u306b\u5408\u308f\u305b\u305f\u30e2\u30fc\u30bf\u30fc\u5dfb\u7dda\u306e\u8a2d\u8a08\u3092\u4f34\u3044\u307e\u3059\u3002\u305d\u306e\u30de\u30fc\u30b8\u30f3\u304c\u3069\u3053\u304b\u3089\u6765\u308b\u306e\u304b\u3001\u3069\u306e\u3088\u3046\u306b\u69cb\u7bc9\u3055\u308c\u308b\u306e\u304b\u306f\u3001\u3053\u306e\u30e1\u30e2\u3067\u6271\u308f\u308c\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/subian-electric.com\/ja\/news\/how-to-improve-the-overload-capacity-and-stability-of-transformers\/\">\u30c8\u30e9\u30f3\u30b9\u306e\u904e\u8ca0\u8377\u80fd\u529b\u3068\u5b89\u5b9a\u6027\u306e\u5411\u4e0a<\/a>.<\/p>\n<p>\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u6e1b\u5c11\u3055\u305b\u308b\u3053\u3068\u306b\u3088\u308b\u8cfc\u5165\u30de\u30fc\u30b8\u30f3\u306b\u3082\u9650\u754c\u304c\u3042\u308a\u307e\u3059\u3002\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u4e0b\u3052\u308b\u3068\u96fb\u5727\u964d\u4e0b\u304c\u6e1b\u5c11\u3057\u307e\u3059\u304c\u3001\u4ed6\u65b9\u3067\u4e8c\u6b21\u5074\u306e\u6545\u969c\u96fb\u6d41\u304c\u5897\u52a0\u3057\u3001\u305d\u306e\u7d50\u679c\u3001\u5f8c\u7d9a\u56de\u8def\u306e\u3059\u3079\u3066\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u5b9a\u683c\u304c\u5897\u52a0\u3057\u307e\u3059\u3002\u30d0\u30e9\u30f3\u30b9\u306f\u3001\u901a\u5e38\u3001\u4e7e\u5f0f\u914d\u96fb\u30c8\u30e9\u30f3\u30b9\u306e\u5834\u5408\u30014\u20136%\u306e\u3069\u3053\u304b\u3067\u9054\u6210\u3055\u308c\u307e\u3059\u3002.<\/p>\n<h2>\u4ed5\u69d8\u306b\u4f55\u3092\u8a18\u8f09\u3059\u308b\u304b<\/h2>\n<p>\u5b9f\u969b\u306e\u767a\u751f\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u30e2\u30fc\u30bf\u30fc\u7d66\u96fb\u30c8\u30e9\u30f3\u30b9\u306f\u3001\u4ee5\u4e0b\u306e\u8981\u7d20\u3067\u69cb\u6210\u3055\u308c\u308b\u3079\u304d\u3067\u3059\uff1a<\/p>\n<ul>\n<li>\u4e09\u3064\u306e\u30eb\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u8a08\u7b97\u3055\u308c\u3001\u6700\u5bc4\u308a\u306e\u96fb\u5727\u5b9a\u683c\u306b\u4e38\u3081\u3089\u308c\u305fkVA\u5b9a\u683c\u3002.<\/li>\n<li>\u5fc5\u8981\u306a\u4e00\u6b21\u304a\u3088\u3073\u4e8c\u6b21\u96fb\u5727\u3068\u30bf\u30c3\u30d7\u7bc4\u56f2\u3002.<\/li>\n<li>\u660e\u793a\u7684\u306b\u8a18\u8f09\u3055\u308c\u305f\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9 \u2014 4%\u307e\u305f\u306f6%\u306f\u96fb\u5727\u964d\u4e0b\u306e\u8a08\u7b97\u3092\u5927\u304d\u304f\u5909\u3048\u307e\u3059\u3002.<\/li>\n<li>\u30c9\u30e9\u30a4\u30d6\u304a\u3088\u3073\u63a5\u5730\u914d\u7f6e\u306b\u4e00\u81f4\u3059\u308b\u30d9\u30af\u30c8\u30eb\u30b0\u30eb\u30fc\u30d7\u3068\u63a5\u5730\u3002.<\/li>\n<li>\u4f7f\u7528\u3055\u308c\u308bVFD\u306e\u5834\u5408\u306eK\u30d5\u30a1\u30af\u30bf\u30fc \u2014 \u6700\u4f4eK-4\u3001\u30c9\u30e9\u30a4\u30d6\u652f\u914d\u8ca0\u8377\u306e\u5834\u5408\u306fK-13\u3002.<\/li>\n<li>\u30b5\u30a4\u30af\u30ea\u30c3\u30af\u30e2\u30fc\u30bf\u30fc\u904b\u8ee2\u304c\u95a2\u4e0e\u3059\u308b\u5834\u5408\u306e\u30af\u30e9\u30b9H\u7d76\u7e01\u3068\u30b0\u30ec\u30fc\u30c9F\u307e\u305f\u306fB\u306e\u4e0a\u6607\u306b\u3088\u308b\u7d76\u7e01\u30af\u30e9\u30b9\u3068\u6e29\u5ea6\u4e0a\u6607\u306e\u4ed5\u69d8\u3002.<\/li>\n<li>\u4e2d\u6027\u5b9a\u683c\u306fK\u5b9a\u683c\u30e6\u30cb\u30c3\u30c8\u306e\u305f\u3081\u306b200%\u306b\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<li>\u540d\u677f\u4ee5\u5916\u306e\u3059\u3079\u3066\u306b\u5bfe\u3057\u3066\u884c\u308f\u308c\u305f\u8ca0\u8377\u304a\u3088\u3073\u904e\u8ca0\u8377\u306e\u58f0\u660e\u3002.<\/li>\n<\/ul>\n<p>\u3053\u3053\u3067\u306e2\u3064\u306e\u9805\u76ee\u306f\u975e\u5e38\u306b\u983b\u7e41\u306b\u7701\u7565\u3055\u308c\u307e\u3059\u3002\u6700\u521d\u306e\u9805\u76ee\u306f\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3067\u3001\u4f9b\u7d66\u8005\u306b\u59d4\u306d\u3089\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u59cb\u52d5\u64cd\u4f5c\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5909\u66f4\u304c\u767a\u751f\u3057\u307e\u3059\u30022\u3064\u76ee\u306e\u9805\u76ee\u306fK\u30d5\u30a1\u30af\u30bf\u30fc\u3067\u3001\u30c9\u30e9\u30a4\u30d6\u304c\u30c8\u30e9\u30f3\u30b9\u304b\u30896\u30f6\u6708\u5f8c\u306b\u5225\u306e\u4eba\u306b\u3088\u3063\u3066\u6307\u5b9a\u3055\u308c\u305f\u305f\u3081\u306b\u898b\u843d\u3068\u3055\u308c\u307e\u3057\u305f\u3002.<\/p>\n<p>6-10kV\u4f9b\u7d66\u306e\u4e2d\u5727\u30e2\u30fc\u30bf\u30fc\u30c9\u30e9\u30a4\u30d6\u306e\u5834\u5408\u3001\u901a\u5e38\u306f\u30ad\u30e3\u30b9\u30c8\u30ec\u30b8\u30f3\u4e7e\u5f0f\u30bf\u30a4\u30d7\u3067\u3042\u308a\u3001\u30d7\u30e9\u30f3\u30c8\u30eb\u30fc\u30e0\u306b\u4f4d\u7f6e\u3057\u3001\u5efa\u7269\u5185\u306b\u6cb9\u3092\u904b\u3073\u307e\u305b\u3093\u3002\u3053\u306e\u30af\u30e9\u30b9\u306e\u30e6\u30cb\u30c3\u30c8\u306e\u5b9a\u683c\u3001\u5dfb\u7dda\u69cb\u9020\u3001\u304a\u3088\u3073\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u4ee5\u4e0b\u306b\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/subian-electric.com\/ja\/product\/dry-type-distribution-transformer-6-10-kv-scb-series\/\">6\u201310 kV\u30b5\u30fc\u30d3\u30b9\u7528\u306e\u30ad\u30e3\u30b9\u30c8\u30ec\u30b8\u30f3\u4e7e\u5f0f\u914d\u96fb\u30c8\u30e9\u30f3\u30b9\u306e\u7bc4\u56f2<\/a>.<\/p>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>\u30c8\u30e9\u30f3\u30b9\u306e\u6a19\u6e96kVA\u30b5\u30a4\u30ba\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u306e\u306f2\u3064\u306e\u5f62\u5f0f\u306e\u306f\u3057\u3054\u3067\u3059\u3002IEC\u65b9\u5f0f\u306f\u3001\u5404\u5897\u5206\u306b\u5bfe\u3057\u3066\u7d0425%\u306eR10\u65b9\u5f0f\u306b\u5f93\u3044\u3001\u53d7\u3051\u5165\u308c\u53ef\u80fd\u306a\u5024\u306f100\u3001160\u3001200\u3001250\u3001315\u3001400\u3001500\u3001630\u3001800\u30011,000\u30011,250\u30011,600\u30012,000\u3001\u304a\u3088\u30732,500 kVA\u3067\u3059\u3002\u5317\u7c73\u65b9\u5f0f\u306f15\u300130\u300145\u300175\u3001112.5\u3001150\u3001225\u3001300\u3001500\u3001750\u30011,000\u30011,500\u30012,000\u3001\u304a\u3088\u30732,500 kVA\u306b\u5f93\u3044\u307e\u3059\u3002\u4e21\u65b9\u306e\u306f\u3057\u3054\u306b\u306f10\u304b\u308950 kVA\u306e\u4f4e\u51fa\u529b\u30c7\u30d0\u30a4\u30b9\u304c\u3042\u308a\u3001\u540c\u3058\u8981\u4ef6\u3067\u7570\u306a\u308b\u5e02\u5834\u3067\u306e\u53ef\u80fd\u306a\u7bc4\u56f2\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u80fd\u3067\u3059\uff1a\u4f8b\u3048\u3070\u3001\u30ec\u30d9\u30eb45 kVA\u306f\u3042\u308b\u5730\u57df\u3067\u793a\u3055\u308c\u308b\u4e00\u65b9\u3001\u5225\u306e\u5730\u57df\u3067\u306f50 kVA\u3067\u793a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3>\u306a\u305c\u30c8\u30e9\u30f3\u30b9\u306fkVA\u3067\u30b5\u30a4\u30ba\u6307\u5b9a\u3055\u308c\u308b\u306e\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u73fe\u5728\u306f\u8ca0\u8377\u30c8\u30e9\u30f3\u30b9\u30c7\u30e5\u30fc\u30b5\u30fc\u306b\u76f4\u3061\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u305f\u3081\u3001\u96fb\u6d41\u306f\u8ca0\u8377\u3092\u77e5\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u6642\u9593\u3068\u96fb\u5727\u306b\u3088\u308b\u77ac\u6642\u306e\u96fb\u6d41\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u5b9a\u683c\u306e\u4e3b\u306a\u95a2\u5fc3\u4e8b\u306f\u3001\u3059\u3079\u3066\u306ekVA\u304c\u904e\u71b1\u6761\u4ef6\u306a\u3057\u306e\u6a5f\u5668\u5b9a\u683c\u306e\u6cd5\u5b9a\u898b\u304b\u3051\u306e\u96fb\u529b\u3067\u3042\u308b\u3053\u3068\u3067\u3059\u3002\u30e2\u30fc\u30bf\u30fc\u3068\u30c8\u30e9\u30f3\u30b9\u30c7\u30e5\u30fc\u30b5\u30fc\u306e\u5b9a\u683c\u3092\u6bd4\u8f03\u3059\u308b\u969b\u3001\u3053\u308c\u306f\u30e2\u30fc\u30bf\u30fc\u306ekW\u5b9a\u683c\u3092kVA\u306b\u5909\u63db\u3059\u308b\u7406\u60f3\u7684\u306a\u7406\u7531\u3067\u3082\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3>\u30c8\u30e9\u30f3\u30b9\u306b\u5fc5\u8981\u306akVA\u5b9a\u683c\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u4f7f\u7528\u3055\u308c\u308b\u30e2\u30fc\u30bf\u30fc\u306e\u6700\u5927kVA\u306e2\u500d\u3001\u307e\u305f\u306f\u7dcf\u8ca0\u8377kVA\u306e1.25\u500d\u306e\u3044\u305a\u308c\u304b\u5927\u304d\u3044\u65b9\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u30e2\u30fc\u30bf\u30fc\u306e\u5b9a\u683c\u96fb\u6d41\u304c\u30c8\u30e9\u30f3\u30b9\u306e\u5b9a\u683c\u96fb\u6d41\u306e\u7d0465%\u4ee5\u4e0b\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3001\u59cb\u52d5\u30d7\u30ed\u30bb\u30b9\u4e2d\u306e\u96fb\u5727\u964d\u4e0b\u304c\u305d\u306e\u540d\u76ee\u5024\u306e80-85%\u3092\u4e0b\u56de\u3089\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002VFD\u306e\u5834\u5408\u3001K\u30d5\u30a1\u30af\u30bf\u30fc\u306e\u8981\u4ef6\u3092\u5c0e\u5165\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u6570\u5024\u3092\u6700\u5bc4\u308a\u306e\u6a19\u6e96\u30b5\u30a4\u30ba\u306b\u5207\u308a\u4e0a\u3052\u307e\u3059\u3002.<\/p>\n<h3>\u5909\u5727\u5668\u306e80%\u30eb\u30fc\u30eb\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u6a19\u6e96\u7684\u306a\u6163\u884c\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u3092\u9023\u7d9a\u7684\u306b\u904b\u8ee2\u3059\u308b\u5834\u5408\u3001kVA\u5b9a\u683c\u306e80 %\u3092\u8d85\u3048\u3066\u8ca0\u8377\u3092\u304b\u3051\u3066\u306f\u3044\u3051\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u5b9a\u683ckVA\u306e80 %\u672a\u6e80\u3067\u3042\u308c\u3070\u3001\u6975\u7aef\u306a\u5468\u56f2\u6e29\u5ea6\uff08\u6a19\u6e96\u6e29\u5ea6\u306f30\u00b0C\u3068\u898b\u306a\u3055\u308c\u307e\u3059\uff09\u3001\u975e\u7dda\u5f62\u8ca0\u8377\u306b\u3088\u308b\u9ad8\u8abf\u6ce2\u640d\u5931\u3001\u304a\u3088\u3073\u77ed\u671f\u7684\u306a\u904e\u8ca0\u8377\u306b\u5bfe\u3057\u3066\u5341\u5206\u306a\u4f59\u88d5\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u3053\u308c\u306f\u30b3\u30fc\u30c9\u3067\u306f\u306a\u304f\u30a2\u30c9\u30d0\u30a4\u30b9\u3092\u6307\u3057\u3066\u304a\u308a\u3001\u5b9f\u969b\u306e\u5236\u9650\u306f\u30c8\u30e9\u30f3\u30b9\u306e\u5dfb\u7dda\u6e29\u5ea6\u3067\u3042\u308b\u305f\u3081\u3001\u7d76\u7e01\u30af\u30e9\u30b9\u3068\u6e29\u5ea6\u4e0a\u6607\u306fkVA\u5024\u3068\u540c\u69d8\u306b\u91cd\u8981\u3067\u3059\u3002.<\/p>\n<h2>\u53c2\u8003\u6587\u732e<\/h2>\n<ol>\n<li><a href=\"https:\/\/www.nfpa.org\/codes-and-standards\/nfpa-70-standard-development\/70\" rel=\"nofollow noopener\" target=\"_blank\">NFPA \u2014 NFPA 70 \u56fd\u5bb6\u96fb\u6c17\u898f\u5247\u3001\u8a18\u4e8b430 \u30e2\u30fc\u30bf\u30fc\u56de\u8def\u304a\u3088\u3073\u8868430.248 \/ 430.250<\/a><\/li>\n<li><a href=\"https:\/\/www.nema.org\/\" rel=\"nofollow noopener\" target=\"_blank\">NEMA \u2014 \u30e2\u30fc\u30bf\u30fc\u540d\u677f\u30b3\u30fc\u30c9\u6587\u5b57\u304a\u3088\u3073\u99ac\u529b\u3042\u305f\u308a\u306e\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fckVA\u5206\u985e<\/a><\/li>\n<li><a href=\"https:\/\/www.eaton.com\/\" rel=\"nofollow noopener\" target=\"_blank\">Eaton \u2014 \u30c8\u30e9\u30f3\u30b9\u306e\u30b5\u30a4\u30ba\u9078\u5b9a\u3001K\u30d5\u30a1\u30af\u30bf\u30fc\u306e\u9078\u629e\u304a\u3088\u3073\u9ad8\u8abf\u6ce2\u640d\u5931\u306e\u9069\u7528\u30ac\u30a4\u30c0\u30f3\u30b9<\/a><\/li>\n<li><a href=\"https:\/\/www.se.com\/us\/en\/\" rel=\"nofollow noopener\" target=\"_blank\">Schneider Electric \u2014 \u4e7e\u5f0f\u30c8\u30e9\u30f3\u30b9\u306e\u4ed5\u69d8\u30c7\u30fc\u30bf\u304a\u3088\u3073\u30e2\u30fc\u30bf\u30fc\u8ca0\u8377\u306e\u30b5\u30a4\u30ba\u9078\u5b9a\u30ac\u30a4\u30c0\u30f3\u30b9<\/a><\/li>\n<li><a href=\"https:\/\/electrical-engineering-portal.com\/\" rel=\"nofollow noopener\" target=\"_blank\">Electrical Engineering Portal \u2014 \u5927\u578b\u30e2\u30fc\u30bf\u30fc\u59cb\u52d5\u306e\u305f\u3081\u306e\u30c8\u30e9\u30f3\u30b9\u306e\u30b5\u30a4\u30ba\u9078\u5b9a\u304a\u3088\u3073\u96fb\u5727\u964d\u4e0b\u8a08\u7b97<\/a><\/li>\n<li><a href=\"https:\/\/www.ul.com\/\" rel=\"nofollow noopener\" target=\"_blank\">UL Solutions \u2014 UL 1561 \u4e7e\u5f0f\u30c8\u30e9\u30f3\u30b9\u304a\u3088\u3073\u8a8d\u5b9a\u3055\u308c\u305fK\u30d5\u30a1\u30af\u30bf\u30fc\u8a55\u4fa1<\/a><\/li>\n<li><a href=\"https:\/\/www.iec.ch\/\" rel=\"nofollow noopener\" target=\"_blank\">International Electrotechnical Commission \u2014 IEC 60076\u30b7\u30ea\u30fc\u30ba\u306e\u96fb\u529b\u30c8\u30e9\u30f3\u30b9\u304a\u3088\u3073IEC 60034\u306e\u56de\u8ee2\u6a5f\u68b0<\/a><\/li>\n<li><a href=\"https:\/\/www.energy.gov\/\" rel=\"nofollow noopener\" target=\"_blank\">US Department of Energy \u2014 \u30e2\u30fc\u30bf\u30fc\u30b7\u30b9\u30c6\u30e0\u304a\u3088\u3073\u30c8\u30e9\u30f3\u30b9\u306e\u52b9\u7387\u30ac\u30a4\u30c0\u30f3\u30b9<\/a><\/li>\n<\/ol>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u30c8\u30e9\u30f3\u30b9\u306f\u305d\u306ekVA\u80fd\u529b\u306b\u57fa\u3065\u3044\u3066\u9078\u5b9a\u3055\u308c\u3001\u96fb\u52d5\u30e2\u30fc\u30bf\u30fc\u306ekVA\u30b5\u30a4\u30ba\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u306e\u9069\u7528\u30bf\u30a4\u30d7\uff08\u3069\u306e\u3088\u3046\u306b\u59cb\u52d5\u3055\u308c\u308b\u304b\uff09\u304a\u3088\u3073\u904b\u8ee2\u7279\u6027\u3092\u8003\u616e\u3057\u3066\u9069\u5207\u306a\u30c8\u30e9\u30f3\u30b9\u3092\u9078\u5b9a\u3059\u308b\u3053\u3068\u306b\u6ce8\u610f\u304c\u6255\u308f\u308c\u307e\u3059\u3002\u65b0\u3057\u3044\u5909\u63db\u3055\u308c\u305fkVA\u8a55\u4fa1\u306f\u3001\u3059\u3079\u3066\u306e\u96fb\u529b\u6e90\uff08\u4f8b\uff1a\u529b\u7387\u88dc\u6b63\/\u7121\u52b9\u96fb\u529b\uff09\u304a\u3088\u3073\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fckVA\uff08\u307e\u305f\u306f\u300c\u6700\u60aa\u306e\u30b1\u30fc\u30b9\u300d\u904b\u8ee2\u6761\u4ef6\uff09\u3092\u542b\u3080\u30e2\u30fc\u30bf\u30fc\u306e\u7dcfkVA\u5024\u3092\u53cd\u6620\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6a19\u6e96\u7684\u306a\u8a98\u5c0e\u30e2\u30fc\u30bf\u30fc\u3068\u6bd4\u8f03\u3059\u308b\u3068\u3001\u901a\u5e38\u306fkVA\u8a55\u4fa1\u3068\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fc\u306e\u305f\u3081\u306e\u4e8c\u70b9\u7f6e\u63db\u6cd5\u3092\u5229\u7528\u3057\u307e\u3059\u304c\u3001VFD\u306e\u300cK\u30d5\u30a1\u30af\u30bf\u30fc\u300d\u306b\u57fa\u3065\u304f\u9ad8\u8abf\u6ce2\u96fb\u6d41\u3068\u3044\u3046\u5225\u306e\u30bf\u30a4\u30d7\u306ekVA\u3082\u3042\u308a\u307e\u3059\u3002kVA\u5bb9\u91cf\u3092\u8a08\u7b97\u3059\u308b\u969b\u306b\u306f\u3001\u96fb\u5727\u964d\u4e0b\u3082\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u304c\u71b1\u7684\u306b\u80fd\u529b\u304c\u3042\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u30e2\u30fc\u30bf\u30fc\u3092\u59cb\u52d5\u3059\u308b\u306e\u306b\u4e0d\u5341\u5206\u306a\u7aef\u5b50\u96fb\u5727\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u3053\u308c\u306f5HP\u304b\u3089500HP\u4ee5\u4e0a\u306e\u96fb\u52d5\u30e2\u30fc\u30bf\u30fc\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Based on how this is applied, the transformer\/motor information may be thought of to be unnecessary. This is because the transformer, which is connected to the motor through a direct connection, does not have a listed transformer application rating matching the nameplate of the motor in terms of current, therefore it does not provide an accurate rating of the transformer either. The application rating of the transformer is actually based upon the amount of apparent power consumed by the motor as an inverter, and there is no indication of either one of those parameters on the motor nameplate. Two parameters are required in order to create a successful inverter configuration. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":11745,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11744","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts\/11744","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=11744"}],"version-history":[{"count":6,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts\/11744\/revisions"}],"predecessor-version":[{"id":11754,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts\/11744\/revisions\/11754"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/media\/11745"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/media?parent=11744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/categories?post=11744"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/tags?post=11744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}