{"id":6139,"date":"2022-06-25T19:36:26","date_gmt":"2022-06-25T10:36:26","guid":{"rendered":"http:\/\/ftz.myds.me\/wordpress\/?p=6139"},"modified":"2023-01-02T21:05:42","modified_gmt":"2023-01-02T12:05:42","slug":"%ea%b3%a0%ec%9e%a5-%ec%8b%9c%ea%b0%84%ec%97%90-%eb%94%b0%eb%a5%b8-%eb%b6%84%eb%a5%98","status":"publish","type":"post","link":"http:\/\/ftz.myds.me\/wordpress\/%ea%b3%a0%ec%9e%a5-%ec%8b%9c%ea%b0%84%ec%97%90-%eb%94%b0%eb%a5%b8-%eb%b6%84%eb%a5%98\/","title":{"rendered":"\uace0\uc7a5 \uc2dc\uac04\uc5d0 \ub530\ub978 \ubd84\ub958\u2055"},"content":{"rendered":"\n<p><meta charset=\"utf-8\">[acf field=ver]\u2605[acf field=rate]![acf field=edited] <\/p>\n\n\n\n<p class=\"has-text-align-right\">\uace0\uc7a5\uc2dc\uac04\uc5d0 \ub530\ub978 \ubd84\ub958<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"1020\" height=\"644\" src=\"http:\/\/ftz.myds.me\/wordpress\/wp-content\/uploads\/2022\/07\/\u1100\u1169\u110c\u1161\u11bc\u1109\u1175\u1100\u1161\u11ab\u110b\u1166-\u1104\u1161\u1105\u1173\u11ab-\u1107\u116e\u11ab\u1105\u1172.png\" alt=\"\" class=\"wp-image-9800\" srcset=\"http:\/\/ftz.myds.me\/wordpress\/wp-content\/uploads\/2022\/07\/\u1100\u1169\u110c\u1161\u11bc\u1109\u1175\u1100\u1161\u11ab\u110b\u1166-\u1104\u1161\u1105\u1173\u11ab-\u1107\u116e\u11ab\u1105\u1172.png 1020w, http:\/\/ftz.myds.me\/wordpress\/wp-content\/uploads\/2022\/07\/\u1100\u1169\u110c\u1161\u11bc\u1109\u1175\u1100\u1161\u11ab\u110b\u1166-\u1104\u1161\u1105\u1173\u11ab-\u1107\u116e\u11ab\u1105\u1172-300x189.png 300w, http:\/\/ftz.myds.me\/wordpress\/wp-content\/uploads\/2022\/07\/\u1100\u1169\u110c\u1161\u11bc\u1109\u1175\u1100\u1161\u11ab\u110b\u1166-\u1104\u1161\u1105\u1173\u11ab-\u1107\u116e\u11ab\u1105\u1172-768x485.png 768w\" sizes=\"(max-width: 1020px) 100vw, 1020px\" \/><figcaption>\uace0\uc7a5\uc2dc\uac04\uc5d0 \ub530\ub978 \ubd84\ub958<\/figcaption><\/figure>\n\n\n\n<h4>First Cycle Short Circuit Current<\/h4>\n\n\n\n<p>\u2460 \ub2e8\ub77d\ubc1c\uc0dd 1\/2 cycle\uc758 \ub2e8\ub77d\uc804\ub958\uac00 \uac00\uc7a5 \ud070 \uc2dc\uc810\uc774\ub2e4.<br>\u2461 \ud68c\uc804\uae30\uc758 \ub9ac\uc561\ud134\uc2a4: Xd&#8221; \u00d7 (1.0~1.2)\uc801\uc6a9<br>\u2462 \uc804\ub825\ud4e8\uc988, \uc800\uc555\ucc28\ub2e8\uae30, \ubcf4\ud638\uc6a9 CT\uc758 \ud3ec\ud654\uc5ec\ubd80 \uac80\ud1a0, \uacc4\uc804\uae30\uc758 \uc21c\uc2dc\uc815\uc815, \ucf00\uc774\ube14\uc758 \uae30\uacc4\uc801 \uac15\ub3c4 \uac80\ud1a0\uc5d0 \ud65c\uc6a9<\/p>\n\n\n\n<p>\u203b \ucd08\uae30 \ube44\ub300\uce6d \uacc4\uc218(MF: Multiplying Factor)<\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">\\[MF=\\sqrt{1+(2e)^{\\frac{-2\\pi}{\\frac{X}{R}}}}\\]<script src='http:\/\/ftz.myds.me\/wordpress\/wp-includes\/js\/dist\/vendor\/regenerator-runtime.min.js?ver=0.13.9' id='regenerator-runtime-js'><\/script>\n<script src='http:\/\/ftz.myds.me\/wordpress\/wp-includes\/js\/dist\/vendor\/wp-polyfill.min.js?ver=3.15.0' id='wp-polyfill-js'><\/script>\n<script src='http:\/\/ftz.myds.me\/wordpress\/wp-includes\/js\/dist\/hooks.min.js?ver=4169d3cf8e8d95a3d6d5' id='wp-hooks-js'><\/script>\n<script src='http:\/\/ftz.myds.me\/wordpress\/wp-includes\/js\/dist\/i18n.min.js?ver=9e794f35a71bb98672ae' id='wp-i18n-js'><\/script>\n<script id='wp-i18n-js-after'>\nwp.i18n.setLocaleData( { 'text direction\\u0004ltr': [ 'ltr' ] } );\n<\/script>\n<script  async src='https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/mathjax\/2.7.7\/MathJax.js?config=TeX-MML-AM_CHTML' id='mathjax-js'><\/script>\n<\/div>\n\n\n\n<p>\uacc4\uc0b0\ub41c \ub300\uce6d 3\uc0c1\ub2e8\ub77d \uc804\ub958\uac00 25kA\ub77c\uba74, X\/R=25\uc778 \uacbd\uc6b0, 1\/2 cycle \ub2e8\ub77d\uc804\ub958\uc758 \uc2e4\ud6a8\uce58 \uc804\ub958?<\/p>\n\n\n\n<p>1\/2cycle \uc2e4\ud6a8\uce58 \uc804\ub958 = 25 \u00d7 1.6 =40[kVA]<\/p>\n\n\n\n<p>[\ud45c] X\/R\uc5d0 \ub530\ub978 1\/2\uc8fc\uae30 \ube44\ub300\uce6d\uacc4\uc218<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">\uc5ed\ub960 [%]<\/th><th class=\"has-text-align-center\" data-align=\"center\">\ub2e8\ub77d\ud68c\ub85c X\/R<\/th><th class=\"has-text-align-center\" data-align=\"center\">\ube44\ub300\uce6d \uacc4\uc218[\uc2e4\ud6a8\uac12]<\/th><th class=\"has-text-align-center\" data-align=\"center\">\ube44\ub300\uce6d \uacc4\uc218[\ud53c\ud06c\uac12]<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td class=\"has-text-align-center\" data-align=\"center\">33.322<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.630<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.702<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">4<\/td><td class=\"has-text-align-center\" data-align=\"center\">24.979<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.599<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.663<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><td class=\"has-text-align-center\" data-align=\"center\">13.460<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.486<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.520<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">~<\/td><td class=\"has-text-align-center\" data-align=\"center\">~<\/td><td class=\"has-text-align-center\" data-align=\"center\">~<\/td><td class=\"has-text-align-center\" data-align=\"center\">~<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">85<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.6198<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.00004<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.439<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4>Interrupting Short Circuit Current<\/h4>\n\n\n\n<p>\u2460 \ucc28\ub2e8\uae30 \uc811\uc810\uc774 \uac1c\uc2dc\ub418\ub294 \uc2dc\uc810(5~8 cycle)\uc758 \ub2e8\ub77d\uc804\ub958 \ud06c\uae30\ub85c \ucd08\uae30\uc5d0 \ube44\ud574 \uac10\uc18c<br>\u2461 \ud68c\uc804\uae30\uc758 \ub9ac\uc561\ud134\uc2a4:Xd&#8221;\u00d7(1.5~3)\uc801\uc6a9<br>\u2462 \uace0\uc555\uc774\uc0c1\uc758 \ucc28\ub2e8\uae30 \ucc28\ub2e8\uc6a9\ub7c9 \uc120\uc815\uc5d0 \ud65c\uc6a9<\/p>\n\n\n\n<h4>Steady-state Short Circuit Current<\/h4>\n\n\n\n<p>\u2460 \ud68c\uc804\uae30\uc758 \uc784\ud53c\ub358\uc2a4\uac00 \uc548\uc815\ub418\uc5b4 \uc804\uccb4\uc801\uc73c\ub85c \uacc4\ud1b5 \uc784\ud53c\ub358\uc2a4\uc758 \ubcc0\ud654\uac00 \uc548\uc815\ub41c \uc2dc\uc810(30 cycle ~)\uc5d0\uc11c \ub2e8\ub77d\uc804\ub958\uc758 \ud06c\uae30<br>\u2461 \ud68c\uc804\uae30\uc758 \uacfc\ub3c4 \ub9ac\uc561\ud134\uc2a4\uac00 \uc0ac\ub77c\uc9c4 \uc2dc\uc810\uc73c\ub85c \ub3d9\uae30\ub9ac\uc561\ud134\uc2a4\uac00 \uc801\uc6a9\ub428<br>\u2462 \ubcf4\ud638\uacc4\uc804\uae30\uc758 \ud55c\uc2dc\uc815\uc815\uc5d0 \ud65c\uc6a9<\/p>\n\n\n\n<h6><strong><em>\u2605<a href=\"http:\/\/ftz.myds.me\/wordpress\/j-%ea%b3%a0%ec%9e%a5%ea%b3%84%ec%82%b0\/\">\uace0\uc7a5\uacc4\uc0b0<\/a> <br><a href=\"http:\/\/ftz.myds.me\/wordpress\/%ea%b3%a0%ec%9e%a5-%ea%b3%84%ec%82%b0%ec%9d%98-%ea%b8%b0%ec%b4%88\/\">\uace0\uc7a5 \uacc4\uc0b0\uc758 \uae30\ucd08\u2055<br><\/a>&#8211;<a href=\"http:\/\/ftz.myds.me\/wordpress\/%ed%8d%bc%ec%84%bc%ed%8a%b8-%ec%9e%84%ed%94%bc%eb%8d%98%ec%8a%a4\/\">\ud37c\uc13c\ud2b8 \uc784\ud53c\ub358\uc2a4<\/a>\u2055<br>&#8211;<a href=\"http:\/\/ftz.myds.me\/wordpress\/%ea%b3%a0%ec%9e%a5-%ec%8b%9c%ea%b0%84%ec%97%90-%eb%94%b0%eb%a5%b8-%eb%b6%84%eb%a5%98\/\">\uace0\uc7a5 \uc2dc\uac04\uc5d0 \ub530\ub978 \ubd84\ub958<\/a>\u2055<br>&#8211;<a href=\"http:\/\/ftz.myds.me\/wordpress\/%ea%b3%a0%ec%9e%a5-%ec%9e%84%ed%94%bc%eb%8d%98%ec%8a%a4\/\">\uace0\uc7a5 \uc784\ud53c\ub358\uc2a4<\/a>\u2055<br>&#8211;<a href=\"http:\/\/ftz.myds.me\/wordpress\/%ec%a0%84%eb%a0%a5%ea%b3%84%ed%86%b5-%eb%8b%a8%eb%9d%bd%ec%82%ac%ea%b3%a0%ec%97%90-%eb%8c%80%ed%95%9c-%ea%b3%bc%eb%8f%84-%ed%95%b4%ec%84%9d\/\">\uc804\ub825\uacc4\ud1b5 \ub2e8\ub77d\uc0ac\uace0\uc5d0 \ub300\ud55c \uacfc\ub3c4 \ud574\uc11d<\/a>\u2055<\/em><\/strong><br><strong><em><br><a href=\"http:\/\/ftz.myds.me\/wordpress\/%eb%b3%80%ed%99%98%ec%9d%98-%ea%b8%b0%ec%b4%88\/\">\ubcc0\ud658\uc758 \uae30\ucd08<\/a><\/em><\/strong>\u2055<\/h6>\n\n\n\n<p>I&nbsp;<a href=\"https:\/\/cq4l.com\/%EB%8B%A8%EB%9D%BD%EC%A0%84%EB%A5%98-%EA%B8%B0%EB%B3%B8%EC%9D%B4%EB%A1%A0\/\">\ub2e8\ub77d\uc804\ub958(\uae30\ubcf8\uc774\ub860)<\/a><br>\u2192A&nbsp;<a href=\"https:\/\/cq4l.com\/%ea%b8%b0%ec%97%ac%ec%a0%84%eb%a5%98\/\">\uae30\uc5ec\uc804\ub958<\/a><br>\u2192Z&nbsp;<a href=\"https:\/\/cq4l.com\/%EB%8B%A8%EB%9D%BD%EC%A0%84%EB%A5%98-%EC%A2%85%EB%A5%98\/\">\ub2e8\ub77d\uc804\ub958(\uc885\ub958)<\/a><br>C&nbsp;<a href=\"https:\/\/cq4l.com\/%EB%8B%A8%EB%9D%BD%EC%A0%84%EB%A5%98-%EA%B3%84%EC%82%B0%EB%B2%95-%EC%A2%85%EB%A5%98\/\">\ub2e8\ub77d\uc804\ub958(\uacc4\uc0b0\ubc95 \uc885\ub958)<\/a><br>\u2192Y&nbsp;<a href=\"https:\/\/cq4l.com\/%EB%8C%80%EC%B9%AD%EC%A2%8C%ED%91%9C%EB%B2%95\/\">\ub300\uce6d\uc88c\ud45c\ubc95<\/a><br>P&nbsp;<a href=\"https:\/\/cq4l.com\/%EC%88%98%EB%B3%80%EC%A0%84%EC%84%A4%EB%B9%84-%EB%8B%A8%EB%9D%BD%EC%9A%A9%EB%9F%89-%EA%B2%BD%EA%B0%90%EB%8C%80%EC%B1%85\/\">\ub2e8\ub77d\uc6a9\ub7c9 \uacbd\uac10\ub300\ucc45(\uc218\ubcc0\uc804\uc124\ube44)<\/a><br>\u2192N&nbsp;<a href=\"https:\/\/cq4l.com\/%EA%B3%84%ED%86%B5%EC%97%B0%EA%B3%84%EA%B8%B0\/\">\uacc4\ud1b5\uc5f0\uacc4\uae30<\/a><br>\u2192S<a href=\"https:\/\/cq4l.com\/%EC%B4%88%EC%A0%84%EB%8F%84-%ED%95%9C%EB%A5%98%EA%B8%B0\/\">\ucd08\uc804\ub3c4 \ud55c\ub958\uae30<\/a><\/p>\n\n\n\n<p>F\u00a0<a href=\"https:\/\/cq4l.com\/%EB%8B%A8%EB%9D%BD%EC%A0%84%EB%A5%98-%EA%B3%84%EC%82%B0-flow\/\">\ub2e8\ub77d\uc804\ub958(\uacc4\uc0b0)<\/a><br>\u21920\u00a0<a href=\"https:\/\/cq4l.com\/a%EC%A0%90%EA%B3%BC-b%EC%A0%90%EC%9D%98-%EB%8B%A8%EB%9D%BD%EC%A0%84%EB%A5%98-%EA%B3%84%EC%82%B0\/\">\ub2e8\ub77d\uc804\ub958 \uacc4\uc0b0(\uae30\ubcf8)<\/a><br>\u21921\u00a0<a href=\"https:\/\/cq4l.com\/1%EC%84%A0-%EC%A7%80%EB%9D%BD%EC%A0%84%EB%A5%98-%EC%9C%A0%EB%8F%84\/\">1\uc120\uc9c0\ub77d\uc804\ub958 \uc720\ud6a8\uc811\uc9c0<\/a><br>\u21922\u00a0<a href=\"https:\/\/cq4l.com\/2%EC%84%A0-%EB%8B%A8%EB%9D%BD%EA%B3%A0%EC%9E%A5%EA%B3%BC-3%EC%83%81-%EB%8B%A8%EB%9D%BD%EC%82%AC%EA%B3%A0%EC%9D%98-%EB%B9%84-%EA%B3%84%EC%82%B0\/\">2\uc120\ub2e8\ub77d 3\uc0c1\ub2e8\ub77d<\/a><br>\u21923\u00a0<a href=\"https:\/\/cq4l.com\/3%EC%83%81%EB%8B%A8%EB%9D%BD%EC%A0%84%EB%A5%98-%EB%B0%8F-%EB%8B%A8%EB%9D%BD%EC%9A%A9%EB%9F%89\/\">3\uc0c1\ub2e8\ub77d(\ub2e8\ub77d\uc804\ub958 \ub2e8\ub77d\uc6a9\ub7c9)<\/a><br>\u2192M\u00a0<a href=\"https:\/\/cq4l.com\/%EB%8B%A8%EB%9D%BD%EC%A0%84%EB%A5%98-%EA%B3%84%EC%82%B0%EC%A0%84%EB%8F%99%EA%B8%B0\/\">\ub2e8\ub77d\uc804\ub958 \uacc4\uc0b0(\uc804\ub3d9\uae30)<\/a><br>\u2192D\u00a0<a href=\"https:\/\/cq4l.com\/%EB%8B%A8%EB%9D%BD%EC%9A%A9%EB%9F%89-%EA%B3%84%EC%82%B0%EB%B6%84%EC%82%B0%EC%A0%84%EC%9B%90\/\">\ub2e8\ub77d\uc804\ub958 \uacc4\uc0b0(\ubd84\uc0b0\uc804\uc6d0)<\/a><br>\u2192R\u00a0<a href=\"https:\/\/cq4l.com\/3%EC%83%81%EB%8B%A8%EB%9D%BD%EA%B3%A0%EC%9E%A5%ED%95%9C%EB%A5%98%EB%A6%AC%EC%95%A1%ED%84%B0\/\">3\uc0c1\ub2e8\ub77d\uace0\uc7a5(\ud55c\ub958\ub9ac\uc561\ud130)<\/a><br>\u2192T\u00a0<a href=\"https:\/\/cq4l.com\/1%EC%84%A0%EC%A7%80%EB%9D%BD%EC%A0%84%EB%A5%98%EC%99%80-3%EC%83%81%EB%8B%A8%EB%9D%BD%EC%A0%84%EB%A5%98%EA%B3%84%EC%82%B0\/\">1\uc120\uc9c0\ub77d\uc804\ub958 3\uc0c1\ub2e8\ub77d\uc804\ub958<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong><em>&#8211;<a 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