{"id":214441,"date":"2024-09-14T19:02:29","date_gmt":"2024-09-14T19:02:29","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/?p=214441"},"modified":"2024-09-14T19:02:29","modified_gmt":"2024-09-14T19:02:29","slug":"%e3%82%a2%e3%82%af%e3%83%86%e3%82%a3%e3%83%96%e3%83%91%e3%83%af%e3%83%bc%e3%80%81%e3%83%aa%e3%82%a2%e3%82%af%e3%83%86%e3%82%a3%e3%83%96%e3%83%91%e3%83%af%e3%83%bc%e3%80%81%e3%82%a2%e3%83%91%e3%83%ac","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%82%a2%e3%82%af%e3%83%86%e3%82%a3%e3%83%96%e3%83%91%e3%83%af%e3%83%bc%e3%80%81%e3%83%aa%e3%82%a2%e3%82%af%e3%83%86%e3%82%a3%e3%83%96%e3%83%91%e3%83%af%e3%83%bc%e3%80%81%e3%82%a2%e3%83%91%e3%83%ac\/","title":{"rendered":"\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u30a2\u30d1\u30ec\u30f3\u30c8\u30d1\u30ef\u30fc\u306e\u9055\u3044\u3068\u306f\uff1f"},"content":{"rendered":"<p class=\"sidekick\">\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u30a2\u30d1\u30ec\u30f3\u30c8\u30d1\u30ef\u30fc\u306e\u9055\u3044\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u96fb\u529b\u306e\u57fa\u672c\u3092\u7406\u89e3\u3057\u3001\u96fb\u6c17\u56de\u8def\u306e\u52b9\u7387\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u57fa\u790e\u77e5\u8b58\u3002<\/p>\n<h2>\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u30a2\u30d1\u30ec\u30f3\u30c8\u30d1\u30ef\u30fc\u306e\u9055\u3044\u3068\u306f\uff1f<\/h2>\n<p>\n\u96fb\u6c17\u5de5\u5b66\u3067\u306f\u3001\u96fb\u529b\u306b\u306f\u8907\u6570\u306e\u7a2e\u985e\u304c\u5b58\u5728\u3057\u3001\u305d\u308c\u305e\u308c\u304c\u7570\u306a\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u305d\u3057\u3066\u30a2\u30d1\u30ec\u30f3\u30c8\u30d1\u30ef\u30fc\u306e3\u3064\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u96fb\u6c17\u30b7\u30b9\u30c6\u30e0\u306e\u52b9\u7387\u7684\u306a\u904b\u7528\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\n<\/p>\n<h2>\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc (\u6709\u52b9\u96fb\u529b)<\/h2>\n<p>\n\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc (Active Power) \u306f\u3001\u5b9f\u969b\u306b\u6709\u52b9\u306a\u4ed5\u4e8b\u3092\u884c\u3046\u96fb\u529b\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002\u96fb\u529b\u306f\u30ef\u30c3\u30c8 (W) \u3067\u8868\u3055\u308c\u3001\u96fb\u52d5\u6a5f\u3084\u96fb\u6c17\u30d2\u30fc\u30bf\u30fc\u306a\u3069\u306e\u8ca0\u8377\u306b\u5bfe\u3057\u3066\u4ed5\u4e8b\u3092\u3057\u307e\u3059\u3002\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u306f\u4ee5\u4e0b\u306e\u5f0f\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\n<\/p>\n<p>\\[ P = V \\cdot I \\cdot \\cos(\\phi) \\]<\/p>\n<ul>\n<li>P : \u6709\u52b9\u96fb\u529b (W)<\/li>\n<li>V : \u96fb\u5727 (V)<\/li>\n<li>I : \u96fb\u6d41 (A)<\/li>\n<li>\\(\\cos(\\phi)\\) : \u529b\u7387<\/li>\n<\/ul>\n<h2>\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc (\u7121\u52b9\u96fb\u529b)<\/h2>\n<p>\n\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc (Reactive Power) \u306f\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u4fdd\u5b58\u3068\u30ea\u30ea\u30fc\u30b9\u3092\u7e70\u308a\u8fd4\u3059\u96fb\u529b\u306e\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306f\u4e3b\u306b\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9 (\u30b3\u30a4\u30eb) \u3084\u30ad\u30e3\u30d1\u30b7\u30bf\u30f3\u30b9 (\u30b3\u30f3\u30c7\u30f3\u30b5) \u306b\u3088\u3063\u3066\u767a\u751f\u3057\u3001\u4ed5\u4e8b\u3092\u3057\u306a\u3044\u96fb\u529b\u3067\u3059\u3002\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u306f\u30d0\u30fc\u30eb (Var) \u3067\u8868\u3055\u308c\u307e\u3059\u3002\n<\/p>\n<p>\\[ Q = V \\cdot I \\cdot \\sin(\\phi) \\]<\/p>\n<ul>\n<li>Q : \u7121\u52b9\u96fb\u529b (Var)<\/li>\n<li>V : \u96fb\u5727 (V)<\/li>\n<li>I : \u96fb\u6d41 (A)<\/li>\n<li>\\(\\sin(\\phi)\\) : \u6b63\u5f26\u6ce2\u306e\u4f4d\u76f8\u5dee<\/li>\n<\/ul>\n<h2>\u30a2\u30d1\u30ec\u30f3\u30c8\u30d1\u30ef\u30fc (\u898b\u304b\u3051\u306e\u96fb\u529b)<\/h2>\n<p>\n\u30a2\u30d1\u30ec\u30f3\u30c8\u30d1\u30ef\u30fc (Apparent Power) \u306f\u3001\u96fb\u529b\u7cfb\u7d71\u5185\u3067\u5408\u8a08\u3055\u308c\u308b\u96fb\u529b\u306e\u7dcf\u91cf\u3092\u8868\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3068\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u306e\u4e21\u65b9\u3092\u542b\u3093\u3067\u304a\u308a\u3001KVA (\u30ad\u30ed\u30dc\u30eb\u30c8\u30a2\u30f3\u30da\u30a2) \u3067\u8868\u3055\u308c\u307e\u3059\u3002\u30a2\u30d1\u30ec\u30f3\u30c8\u30d1\u30ef\u30fc\u306f\u8907\u7d20\u6570\u306e\u5927\u304d\u3055\u3068\u3057\u3066\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\n<\/p>\n<p>\\[ S = \\sqrt{P^2 + Q^2} \\]<\/p>\n<ul>\n<li>S : \u898b\u304b\u3051\u306e\u96fb\u529b (VA)<\/li>\n<li>P : \u6709\u52b9\u96fb\u529b (W)<\/li>\n<li>Q : \u7121\u52b9\u96fb\u529b (Var)<\/li>\n<\/ul>\n<h2>\u529b\u7387 (Power Factor)<\/h2>\n<p>\n\u96fb\u529b\u30b7\u30b9\u30c6\u30e0\u306e\u52b9\u7387\u6027\u3092\u8868\u3059\u3082\u3046\u4e00\u3064\u306e\u91cd\u8981\u306a\u6307\u6a19\u304c\u300c\u529b\u7387\u300d\u3067\u3059\u3002\u3053\u308c\u306f\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u306e\u30a2\u30d1\u30ec\u30f3\u30c8\u30d1\u30ef\u30fc\u306b\u5bfe\u3059\u308b\u6bd4\u7387\u3067\u30011\u306b\u8fd1\u3044\u307b\u3069\u52b9\u7387\u7684\u306a\u30b7\u30b9\u30c6\u30e0\u3068\u306a\u308a\u307e\u3059\u3002\u529b\u7387\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\n<\/p>\n<p>\\[ \\cos(\\phi) = \\frac{P}{S} \\]<\/p>\n<p>\n\u529b\u7387\u3092\u9ad8\u304f\u4fdd\u3064\u3053\u3068\u306f\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u7121\u99c4\u3092\u6e1b\u3089\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002\n<\/p>\n<p>\n\u3053\u308c\u3089\u306e\u96fb\u529b\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u96fb\u529b\u30b7\u30b9\u30c6\u30e0\u3092\u3088\u308a\u52b9\u7387\u7684\u304b\u3064\u52b9\u679c\u7684\u306b\u904b\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u96fb\u529b\u306e\u7a2e\u985e\u306b\u5fdc\u3058\u305f\u5236\u5fa1\u3068\u7ba1\u7406\u304c\u6c42\u3081\u3089\u308c\u308b\u73fe\u4ee3\u306e\u96fb\u529b\u30b7\u30b9\u30c6\u30e0\u904b\u7528\u306b\u304a\u3044\u3066\u3001\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u305d\u3057\u3066\u30a2\u30d1\u30ec\u30f3\u30c8\u30d1\u30ef\u30fc\u306e\u533a\u5225\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d1\u30ef\u30fc\u3001\u30a2\u30d1\u30ec\u30f3\u30c8\u30d1\u30ef\u30fc\u306e\u9055\u3044\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u96fb\u529b\u306e\u57fa\u672c\u3092\u7406\u89e3\u3057\u3001\u96fb\u6c17\u56de\u8def\u306e\u52b9\u7387\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u57fa\u790e\u77e5\u8b58\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[102],"tags":[],"class_list":["post-214441","post","type-post","status-publish","format-standard","hentry","category-102","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- 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