{"id":10523,"date":"2026-08-29T23:43:04","date_gmt":"2026-08-29T15:43:04","guid":{"rendered":"https:\/\/q8bbzjnpm5.wpdns.site\/?p=10523"},"modified":"2026-08-29T23:43:04","modified_gmt":"2026-08-29T15:43:04","slug":"transformer-ratio-the-regulating-valve-for-stable-operation-of-power-systems","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/ko\/news\/transformer-ratio-the-regulating-valve-for-stable-operation-of-power-systems\/","title":{"rendered":"\ubcc0\uc555\uae30 \ube44\uc728: \uc804\ub825 \uc2dc\uc2a4\ud15c\uc758 \uc548\uc815\uc801\uc778 \uc791\ub3d9\uc744 \uc704\ud55c \u201c\uc870\uc808 \ubc38\ube0c\u201d"},"content":{"rendered":"<p>\ubcc0\uc804\uc18c \uc6b4\uc601\uc790\ub294 \uc624\ub298 \ucc9c\ub465\ubc88\uac1c\uac00 \ub3c4\ucc29\ud558\uc5ec 110 kV \uc804\ub825\uc120\uc758 \uc804\uc555\uc744 108 kV\uc5d0\uc11c 116 kV\ub85c \ubcc0\uacbd\ud588\uc744 \ub54c \uadf8\uc758 \uc804\uc790 \uacc4\uae30\ub97c \ubcf4\uc558\uc2b5\ub2c8\ub2e4. \uadf8\ub7fc\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0, 2\ucc28\uce21\uc758 20 kV \ubc84\uc2a4\ub294 \ub3d9\uc2dc\uc5d0 19.9 kV\uc640 20.1 kV \uc0ac\uc774\uc758 \uac12\uc744 \ub098\ud0c0\ub0c8\uc2b5\ub2c8\ub2e4. \uadf8\uacf3\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 \uae30\uae30\ub294 \ubd80\ud558 \uc804\ud658\uae30(on-load tap changer)\ub77c\uace0 \ubd88\ub9ac\uba70, \ubcc0\uc555\uae30 \ube44\uc728\uc740 \ub2e8\uacc4\uc801\uc73c\ub85c \uc870\uc815\ub429\ub2c8\ub2e4.<\/p>\n<p>\uc774 \uae30\uc0ac\ub294 \ubcc0\uc555\uae30 \ube44\uc728\uc774 \ubb34\uc5c7\uc778\uc9c0, \uc5b4\ub5bb\uac8c \uacc4\uc0b0\ub418\ub294\uc9c0, \uadf8\ub9ac\uace0 <strong>\ubcc0\uc555\uae30 \ube44\uc728<\/strong> \uacfc \uc804\uc555 \uc548\uc815\uc131 \uac04\uc758 \uad00\uacc4\uac00 \ubb34\uc5c7\uc778\uc9c0, \ud0ed \uccb4\uc778\uc800\uac00 \uadf8 \uc21c\uac04 \ubcc0\uc555\uae30 \ube44\uc728\uc744 \uc5b4\ub5bb\uac8c \uc548\uc815\uc801\uc73c\ub85c \uc720\uc9c0\ud558\ub294\uc9c0, \ubcc0\uc555\uae30 \ube44\uc728 \uc624\ub958\uac00 \ubc1c\uc0dd\ud560 \uacbd\uc6b0 \uc5b4\ub5a4 \uacb0\uacfc\ub97c \ucd08\ub798\ud560 \uc218 \uc788\ub294\uc9c0\uc5d0 \ub300\ud574 \uc124\uba85\ud569\ub2c8\ub2e4. \uacc4\uc0b0 \uc608\uc2dc\ub294 IEC 60076 \ubc0f IEEE C57 \ud45c\uc900\uc5d0 \ub300\ud55c \ucc38\uace0\uc640 \ud568\uaed8 \uc81c\uacf5\ub429\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \ud0ed \ubc94\uc704, \ud0ed \uccb4\uc778\uc800\uc758 \ube44\uc6a9 \ub4f1\ub3c4 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10525\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/Tap-Changers-Parallel-Matching-Ratio-Testing.webp\" alt=\"\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"definition\">\ubcc0\uc555\uae30 \ube44\uc728\uc774\ub780 \ubb34\uc5c7\uc778\uac00? (\uc815\uc758 \ubc0f \uacf5\uc2dd)<\/h2>\n<p>\ubcc0\uc555\uae30 \ube44\uc728 \ub610\ub294 \uad8c\uc120 \ube44\uc728\uc740 1\ucc28 \uad8c\uc120\uc758 \uad8c\uc120 \uc218\uc640 2\ucc28 \uad8c\uc120\uc758 \uad8c\uc120 \uc218\uc758 \ube44\uc728\uc744 \uc815\uc758\ud569\ub2c8\ub2e4. \uc774\ub294 1\ucc28 \uc804\uc555\uacfc 2\ucc28 \uc804\uc555\uc758 \ube44\uc728\uacfc \uc774\ub860\uc801\uc778 \uacbd\uc6b0 1\ucc28 \uc804\ub958\uc640 2\ucc28 \uc804\ub958\uc758 \uc5ed\ube44\uc728\uacfc \uac19\uc2b5\ub2c8\ub2e4.<br \/>\nN1\/N2 = V1\/V2 = I2\/I1.<br \/>\n\uc2e4\uc81c \ubcc0\uc555\uae30\ub294 \uc774\uc0c1\uc801\uc774\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ubcc0\uc555\uae30\uc5d0\uc11c\ub294 \ub204\uc124 \ub9ac\uc561\ud134\uc2a4\uc640 \uad8c\uc120\uc758 \uc800\ud56d\uc73c\ub85c \uc778\ud574 \uc804\uc555 \uac15\ud558\uac00 \ubc1c\uc0dd\ud558\uc5ec \uc2e4\uc81c \uc804\uc555\uc774 \ubb34\ubd80\ud558 \uc804\uc555\ubcf4\ub2e4 \ub0ae\uc544\uc9d1\ub2c8\ub2e4. \uc804\uc555\uc758 \ucc28\uc774\ub97c \ubc31\ubd84\uc728\ub85c \ub098\ud0c0\ub0b8 \uac83\uc744 <strong>\uc804\uc555 \uc870\uc815<\/strong> \uc774\ub77c\uace0 \ud558\uba70, \uc774\ub294 \ubcc0\uc555\uae30\uc758 \ud2b9\uc131\uc5d0 \ub530\ub77c \uc57d 2%-6%\uc785\ub2c8\ub2e4.<br \/>\n\ub2e4\uc74c \uc815\uc758\ub294 \uacc4\uc57d\uc11c\uc5d0\uc11c \uc11c\ub85c \uad50\ud658\ud558\uc5ec \uc0ac\uc6a9\ub429\ub2c8\ub2e4:<\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<caption>\ubcc0\uc555\uae30 \ube44\uc728 \uc6a9\uc5b4<\/caption>\n<tbody>\n<tr>\n<th>\uc870\uac74<\/th>\n<th>\uc758\ubbf8<\/th>\n<th>\uc608\uc2dc<\/th>\n<\/tr>\n<tr>\n<td>\uad8c\uc120 \ube44\uc728<\/td>\n<td>N1 \/ N2 (\uc21c\uc218 \uad8c\uc120 \uae30\ud558\ud559)<\/td>\n<td>550 \/ 100 = 5.5<\/td>\n<\/tr>\n<tr>\n<td>\uc804\uc555 \ube44\uc728<\/td>\n<td>\ubb34\ubd80\ud558 \uc2dc V1 \/ V2<\/td>\n<td>110 kV \/ 20 kV = 5.5<\/td>\n<\/tr>\n<tr>\n<td>\uc870\uc815<\/td>\n<td>\ubb34\ubd80\ud558\uc5d0\uc11c \uc804\ubd80\ud558\ub85c\uc758 \uc804\uc555 \uac15\ud558<\/td>\n<td>2.5%\u20136%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"calculation\">\ubcc0\uc555\uae30 \ube44\uc728 \uacc4\uc0b0 \ubc29\ubc95: \uc791\uc5c5 \uc608\uc81c<\/h2>\n<p>\ube44\uc728\uc744 \uacb0\uc815\ud558\ub294 \uac83\uc740 \uc804\uc555\uc774\ub098 \uad8c\uc120 \uc218\ub97c \uc54c\uba74 \uc27d\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc608\ub97c \ub4e4\uc5b4:<br \/>\n110 kV\/20 kV \uc804\uc555 \ubcc0\uc555\uae30\ub294 110:20 \ube44\uc728\uc744 \uac00\uc9c0\uba70, 1\ucc28\uc5d0 2200\ud68c\uc804\uc774 \uc788\uc73c\uba74 2\ucc28\uc5d0\ub294 400\ud68c\uc804\uc774 \uc788\ub2e4\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<br \/>\n\uace0\uc804\uc555 \ubcc0\uc555\uae30 18 kV \u2013 400 kV\uc758 \uacbd\uc6b0 \ube44\uc728\uc740 (400\/18 = 22.2)\uac00 \ub429\ub2c8\ub2e4.<br \/>\n\ubc30\uc804 \ubcc0\uc555\uae30\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 11 kV\/0.4 kV\uc758 \uc804\uc555 \ube44\uc728\uc744 \uac00\uc9c0\uba70, \uc774\ub294 \ube44\uc728\uc774 11\/0.4 = 27.5:1\uc784\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<br \/>\n\uc790\ub3d9 \ubcc0\uc555\uae30\uc758 \uad6c\uc870\ub85c \uc778\ud574 \uc77c\ubd80 \uad8c\uc120 \uc2dc\uc2a4\ud15c\uc744 \uacf5\uc720\ud558\ubbc0\ub85c \ub3d9\uc77c\ud55c \uc804\uc555 \ube44\uc728\uc778 2:1\uc5d0 \ub300\ud574 \ub354 \uc801\uc740 \uad8c\uc120 \uc218\ub97c \uac00\uc9d1\ub2c8\ub2e4.<\/p>\n<p>3\uc0c1 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 \ubcc0\uc555\uae30\uc758 \uacbd\uc6b0 \uc120\uac04 \uc804\uc555\uc744 \uc0ac\uc6a9\ud574\uc57c \ud558\uba70, \ubca1\ud130 \uadf8\ub8f9(Dyn11, YNd11)\uc740 \uc704\uc0c1 \uc774\ub3d9\uacfc \uc2dc\uc2a4\ud15c\uc758 \ud06c\uae30 \ube44\uc728 \uad00\uacc4\ub97c \uacb0\uc815\ud558\ub294 \ub370 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"regulation\">\ube44\uc728\uc774 \uadf8\ub9ac\ub4dc\uc758 \uc870\uc815 \ubc38\ube0c\uc778 \uc774\uc720<\/h2>\n<p>\uc804\uc1a1\uc120\uc758 \uc804\uc555 \ubcc0\ub3d9\uc740 \ubd80\ud558\uc758 \ubcc0\ud654, \ubc1c\uc804\uae30 \uace0\uc7a5, \ubb34\ud6a8 \uc804\ub825 \uc190\uc2e4 \ubc0f \uc6d0\ucc9c\uc73c\ub85c\ubd80\ud130\uc758 \uac70\ub9ac\uc640 \uac19\uc740 \uc5ec\ub7ec \uc694\uc778\uc73c\ub85c \uc778\ud574 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ube44\uc728 \uc870\uc815 \uc5c6\uc774, \ud53c\ub354\ub294 \ud558\ub8e8 \ub3d9\uc548 5%\uc5d0\uc11c 10%\uae4c\uc9c0\uc758 \uc804\uc555 \ubcc0\ub3d9\uc744 \uacbd\ud5d8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcc0\uc555\uae30 \ube44\uc728\uc740 \uc804\uc555 \ubcc0\ub3d9\uc758 \uc774\uc810\uc744 \ubcf4\uc0c1\ud558\ub294 \uc2e4\uc9c8\uc801\uc778 \uc218\ub2e8\uc73c\ub85c \uc791\uc6a9\ud558\uba70, \uad8c\uc120 \uc218\uc640 \ucd9c\ub825 \uc804\uc555 \uac04\uc5d0\ub294 \uc9c1\uc811\uc801\uc778 \uad00\uacc4\uac00 \uc788\uc5b4, \uc5b4\ub5a4 \ubcc0\ud654\ub3c4 \ud574\ub2f9 \ubcc0\ub3d9\uc73c\ub85c \uc774\uc5b4\uc9d1\ub2c8\ub2e4.<br \/>\n\uc2dc\uc2a4\ud15c \uc6b4\uc601\uc790\ub294 \uaddc\uc815\uc5d0 \uc758\ud574 \uc124\uc815\ub41c \ubc95\uc801 \ud55c\ub3c4 \ub0b4\uc5d0\uc11c \uc804\uc555\uc744 \uc720\uc9c0\ud574\uc57c \ud558\uba70, \uc774\ub294 \ubc30\uc804 \ubd80\ubb38\uc5d0\uc11c \u00b1 5%, \uc1a1\uc804 \ubd80\ubb38\uc5d0\uc11c \u00b1 10%\uc758 \uc804\uc555\uc744 \uc720\uc9c0\ud574\uc57c \ud568\uc744 \uc694\uad6c\ud569\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc5d0\uc11c \uac00\uc7a5 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ubc29\ubc95\uc740 \ubcc0\uc555\uae30 \ube44\uc728\uc744 \uc870\uc815\ud558\ub294 OLTC\uc785\ub2c8\ub2e4. \uc0ac\uc2e4, OLTC\ub294 \ub9e4\uc6b0 \ub110\ub9ac \uc0ac\uc6a9\ub418\uae30 \ub54c\ubb38\uc5d0 OLTC\uac00 \uc5c6\ub294 \ubcc0\uc555\uae30\ub294 \uc11c\uba74\uc73c\ub85c \uc815\ub2f9\ud654\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"tap\">\ud0ed \uccb4\uc778\uc800: \ube44\uc728\uc744 \uc870\uc815\ud558\ub294 \uba54\ucee4\ub2c8\uc998<\/h2>\n<p>\ub450 \uac00\uc9c0 \uc885\ub958\uc758 \ud0ed \uccb4\uc778\uc800\uac00 \uc874\uc7ac\ud558\uba70, \uadf8 \uc911 \uc120\ud0dd\ud558\ub294 \uac83\uc740 \uc8fc\ub85c \uc791\uc5c5 \uc8fc\uae30 \ubb38\uc81c\uc785\ub2c8\ub2e4:<\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<caption>\uc624\ud504 \ud68c\ub85c \ub300 \uc628 \ub85c\ub4dc \ud0ed \uccb4\uc778\uc800<\/caption>\n<tbody>\n<tr>\n<th>\uce21\uba74<\/th>\n<th>\uc624\ud504 \ud68c\ub85c (DETC)<\/th>\n<th>\ubd80\ud558 \uc911 (OLTC)<\/th>\n<\/tr>\n<tr>\n<td>\uc791\ub3d9<\/td>\n<td>\ube44\uc804\uc555 \uc0c1\ud0dc\uc5d0\uc11c\ub9cc<\/td>\n<td>\ubd80\ud558 \uc911, \uc790\ub3d9\ud654\ub41c<\/td>\n<\/tr>\n<tr>\n<td>\uc77c\ubc18\uc801\uc778 \ud0ed \ubc94\uc704<\/td>\n<td>\u00b12.5%\uc5d0\uc11c \u00b15%<\/td>\n<td>\u00b110%\uc5d0\uc11c \u00b116%<\/td>\n<\/tr>\n<tr>\n<td>\ub2e8\uacc4<\/td>\n<td>3\u20135<\/td>\n<td>13\u201317 (\uac01\uac01 1.25%\u20132.5%)<\/td>\n<\/tr>\n<tr>\n<td>\uc870\uc815 \ub2a5\ub825<\/td>\n<td>\uacc4\uc808\ubcc4\ub9cc<\/td>\n<td>\uc9c0\uc18d\uc801, \uc790\ub3d9 (\u00b12% \uc720\uc9c0)<\/td>\n<\/tr>\n<tr>\n<td>\uac00\uaca9 \ud504\ub9ac\ubbf8\uc5c4<\/td>\n<td>\uae30\uc900\uc120<\/td>\n<td>+$15,000\u2013$60,000 \ub4f1\uae09\uc5d0 \ub530\ub77c \ub2e4\ub984<\/td>\n<\/tr>\n<tr>\n<td>\uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294<\/td>\n<td>\ubc30\uc804 \ubcc0\uc555\uae30<\/td>\n<td>\uc804\ub825 \ubcc0\uc555\uae30 \u22655 MVA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>OLTC\uac00 \uc804\ub958\ub85c \uc791\ub3d9\ud558\ub294 \ub3d9\uc548, \uace0\uc815 \ud0ed\uc5d0\uc11c \uc804\ud658\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \uc8fc\uc694 \uc811\uc810\uc5d0\uc11c \uc804\uae30 \uc544\ud06c\ub97c \ucd5c\uc18c\ud654\ud558\uae30 \uc704\ud574 \uc800\ud56d\uae30 \ub610\ub294 \ub9ac\uc561\ud130 \ubc0f \ube60\ub978 \uc9c4\uacf5 \ucc28\ub2e8\uae30\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \ud604\ub300\uc801\uc778 \ubaa8\ud130 \uc81c\uc5b4 OLTC\ub294 \uc0ac\uc774\ud074\uc744 \uc644\ub8cc\ud558\ub294 \ub370 \uc57d 2\ucd08\uc5d0\uc11c 10\ucd08\uac00 \uc18c\uc694\ub429\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \ucee8\ud2b8\ub864\ub7ec\ub294 \ubcc0\uc555\uae30\uc758 2\ucc28 \uce21\uc5d0\uc11c \uc804\uc555 \ud53c\ub4dc\ubc31\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"parallel\">\ubcd1\ub82c \uc791\ub3d9\uc744 \uc704\ud55c \ube44\uc728 \uc77c\uce58<\/h2>\n<p>\ub450 \uac1c\uc758 \ubcc0\uc555\uae30\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub3d9\uc77c\ud55c \ubc84\uc2a4\ub97c \ub3d9\uc2dc\uc5d0 \uacf5\uae09\ud560 \ub54c, \ube44\uc728\uc744 \ubc00\uc811\ud558\uac8c \uc77c\uce58\ud558\ub3c4\ub85d \uc870\uc815\ud574\uc57c \ud569\ub2c8\ub2e4. \ube44\uc728\uc758 \ucc28\uc774 \u0394%\ub294 \uc774\ub978\ubc14 \uc21c\ud658 \uc804\ub958\ub97c \uc0dd\uc131\ud558\uba70 (\uc720\ud734 \uc0c1\ud0dc\uc5d0\uc11c\ub3c4 \ud68c\ub85c\uc5d0 \ucc38\uc5ec\ud568).<\/p>\n<p>\ud55c \uac00\uc9c0 \uc870\uc5b8\uc740 \uc21c\ud658 \uc804\ub958\ub97c \ub354 \uc791\uc740 \ubcc0\uc555\uae30\uc758 \uc6a9\ub7c9\uc758 10% \uc774\ud558\ub85c \uc720\uc9c0\ud574\uc57c \ud55c\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4.<br \/>\n\ube44\uc728\uc758 1% \ucc28\uc774\uc758 \ud6a8\uacfc\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 20 MVA \/ 110 kV \uc6a9\ub7c9\uc744 \uac00\uc9c4 \ub450 \ubcc0\uc555\uae30\uc758 \uc6a9\ub7c9\uc758 2%-5%\uc758 \uc21c\ud658 \uc804\ub958\ub97c \ucd08\ub798\ud558\uba70, \uc774\ub294 \uc784\ud53c\ub358\uc2a4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4(\uc815\uc0c1\uc801\uc73c\ub85c 10%).<br \/>\n\ubcc0\uc555\uae30\ub294 \uc774\ub97c \uc704\ud574 \uba87 \uac00\uc9c0 \uae30\ubcf8 \uc870\uac74\uc5d0 \ub530\ub77c \uc6b4\uc601\ub418\uc5b4\uc57c \ud558\uba70, \uc989: \ub3d9\uc77c\ud55c \ubca1\ud130 \uadf8\ub8f9, \ube44\uc728\uc774 \uc77c\uce58\ud574\uc57c \ud558\uba70, \uc784\ud53c\ub358\uc2a4\ub294 10% \uc774\uc0c1\uc73c\ub85c \ubcc0\ub3d9\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n<p>\uc774\ub97c \uace0\ub824\ud558\uc5ec \uc6b4\uc601\uc790\ub294 \uac01 \ubcc0\uc555\uae30\uc758 \ud0ed \uc704\uce58\ub97c \ubcc0\uacbd\ud558\uc5ec \uc774\ub97c \ub3d9\uc77c\ud558\uac8c \ub9cc\ub4e4\uc5b4\uc57c \ud558\uba70, \ub9ce\uc740 \ud604\ub300 AVR\uc740 \uc774\ub97c \uc704\ud55c \ub9c8\uc2a4\ud130-\ud314\ub85c\uc6cc \ubc29\uc2dd\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2 id=\"effects\">\uc798\ubabb\ub41c \ube44\uc728\uc758 \uc601\ud5a5: \uc21c\ud658 \uc804\ub958 \ubc0f \ubcf4\ud638 \ubb38\uc81c<\/h2>\n<p>\ub9b4\ub808\uc774 \uc815\uaca9\uc73c\ub85c \uc778\ud55c \ub9b4\ub808\uc774 \uc624\uc791\ub3d9\uc740 \uc798\ubabb\ub41c \ub9b4\ub808\uc774 \uc124\uc815\uc73c\ub85c \uc778\ud574 \ubcf4\ud638 \uc7a5\uce58\uc758 \uc624\uc791\ub3d9\uc744 \ucd08\ub798\ud560 \uc218 \uc788\uc73c\uba70, \uc774\ub294 \uc801\uc808\ud55c \uacb0\ud568 \uc5c6\uc774 \ubcf4\ud638 \uc7a5\uce58\uac00 \uc791\ub3d9\ud558\uac70\ub098 2%-5% \uc624\ub958\ub85c \uc778\ud574 \uc2e4\uc81c \ub0b4\ubd80 \uacb0\ud568\uc744 \uac10\uc9c0\ud558\uc9c0 \ubabb\ud558\uac8c \ub429\ub2c8\ub2e4.<br \/>\n\uc804\uc555 \ubcc0\ud654\ub294 \uac1c\uc6b8\uc744 \ub530\ub77c \uc804\uc555\uc744 \uc678\ubd80 \ud55c\uacc4\ub85c \uac15\uc81c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br \/>\n\ubd80\ud558 \uc0c1\ud669\uc758 \ubd88\uade0\ud615\uc740 \ube44\uc728\uc774 \ub192\uc740 \uc7a5\uce58\uac00 \uc0c1\ub2f9\ud55c \uc591\uc758 \ub2a5\ub3d9 \ubc0f \ubb34\ud6a8 \uc804\ub825\uc744 \uc18c\ube44\ud558\uc5ec \ub178\ud654\ub97c \uac00\uc18d\ud654\ud568\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<br \/>\n\uadf8\ub798\uc11c \ube44\uc728 \uac80\uc0ac\ub294 IEC 60076-1 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \uc2dc\uc6b4\uc804\uc758 \ub2e8\uacc4 \uc911 \ud558\ub098\uac00 \ub418\uc5c8\uc73c\uba70, \uc774\ub294 \uc8fc\uc694 \ud0ed\uc5d0\uc11c \uc804\uc555 \ube44\uc728\uc774 \uc124\uacc4 \uac12\uacfc \u00b10.5% \uc774\uc0c1 \ucc28\uc774\ub098\uc9c0 \uc54a\uc544\uc57c \ud558\uba70, \ubaa8\ub4e0 \ud0ed\uc740 \uba85\ud310 \ub370\uc774\ud130\uc5d0 \ub300\ud574 \uac80\uc99d\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"testing\">\ube44\uc728 \ud14c\uc2a4\ud2b8 \ubc29\ubc95 \ubc0f \ud45c\uc900<\/h2>\n<p>\ud45c\uc900 \ud604\uc7a5 \ud14c\uc2a4\ud2b8\ub294 \ubcc0\uc555\uae30 \ube44\uc728(TTR) \ubbf8\ud130\ub85c \uc218\ud589\ub418\ub294 \uad8c\uc120 \ube44\uc728 \ud14c\uc2a4\ud2b8\uc785\ub2c8\ub2e4:<\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<caption>\ube44\uc728 \ud14c\uc2a4\ud2b8 \ubc29\ubc95<\/caption>\n<tbody>\n<tr>\n<th>\ubc29\ubc95<\/th>\n<th>\uc6d0\ub9ac<\/th>\n<th>\uc815\ud655\ub3c4<\/th>\n<th>\uc77c\ubc18\uc801\uc778 \uc6a9\ub3c4<\/th>\n<\/tr>\n<tr>\n<td>TTR \ubbf8\ud130 (TTR \ud14c\uc2a4\ud2b8)<\/td>\n<td>\uac01 \ud0ed\uc5d0\uc11c \uc8fc\uc785\ub41c \uc804\uc555\uacfc \uc720\ub3c4\ub41c \uc804\uc555\uc744 \ube44\uad50\ud569\ub2c8\ub2e4.<\/td>\n<td>\u00b10.1%<\/td>\n<td>\uc2dc\uc6b4\uc804, \uc815\uae30 \uc720\uc9c0\ubcf4\uc218<\/td>\n<\/tr>\n<tr>\n<td>\ubb34\ubd80\ud558\uc5d0\uc11c\uc758 \uc804\uc555 \ube44\uc728 \uac80\uc0ac<\/td>\n<td>\uc804\uc555\uc744 \uc904\uc774\uace0 \uc591\ucabd\uc744 \uce21\uc815\ud569\ub2c8\ub2e4.<\/td>\n<td>\u00b10.3%<\/td>\n<td>\ud604\uc7a5 \uac80\uc99d<\/td>\n<\/tr>\n<tr>\n<td>\uc815\uc804 \uc6a9\ub7c9 \ube44\uc728 \/ \uc800\uc804\uc555 \ud14c\uc2a4\ud2b8<\/td>\n<td>\uc815\uc804 \uc6a9\ub7c9 \uacb0\ud569\uc744 \ud1b5\ud55c \ub3d9\ub4f1 \ube44\uc728<\/td>\n<td>\u00b10.5%<\/td>\n<td>\uacf5\uc7a5 \uc720\ud615 \ud14c\uc2a4\ud2b8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uacf5\uc7a5 \ud14c\uc2a4\ud2b8\uc640 \ud604\uc7a5 \ud14c\uc2a4\ud2b8\ub294 \ubaa8\ub450 IEC 60076-1 \ubc0f IEEE C57.12.90\uc5d0\uc11c \uc720\ub798\ud569\ub2c8\ub2e4. TTR \ud14c\uc2a4\ud2b8\ub294 \ub3d9\uc77c\ud55c \uc7a5\uce58\uc5d0\uc11c \uc218\ud589\ub41c \ub2e4\uc591\ud55c \ud14c\uc2a4\ud2b8 \uac04\uc758 \ube44\uc728 \ubcc0\ud654\uac00 \uc885\uc885 \uad8c\uc120\uc758 \ub2e8\ub77d\uc744 \ub098\ud0c0\ub0b4\ubbc0\ub85c \uc8fc\uc694 \uc9c4\ub2e8 \ud14c\uc2a4\ud2b8\ub85c \uac04\uc8fc\ub418\uba70, \uc5f0\uac04 \ube44\uc728 \ud14c\uc2a4\ud2b8\ub294 \ubaa8\ub2c8\ud130\ub9c1\uc758 \ud544\uc218 \uc694\uc18c\uc785\ub2c8\ub2e4.<\/p>\n<h2 id=\"specs\">\uc751\uc6a9 \ubd84\uc57c\ubcc4 \uc804\ud615\uc801\uc778 \ube44\uc728 \ubc0f \ud0ed \ubc94\uc704<\/h2>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<caption>\uc751\uc6a9 \ubd84\uc57c \uc804\ubc18\uc5d0 \uac78\uce5c \uc804\ud615\uc801\uc778 \ube44\uc728 \ubc0f \ud0ed \ubc94\uc704<\/caption>\n<tbody>\n<tr>\n<th>\uc751\uc6a9<\/th>\n<th>\uc804\ud615\uc801\uc778 \ube44\uc728<\/th>\n<th>\ud0ed \ubc94\uc704<\/th>\n<th>\ud0ed \uccb4\uc778\uc800<\/th>\n<\/tr>\n<tr>\n<td>\ubc1c\uc804\uc18c\uc758 GSU<\/td>\n<td>18\/400 kV (22.2:1)<\/td>\n<td>5\ub2e8\uacc4\uc5d0\uc11c \u00b17.5%<\/td>\n<td>\uc624\ud504 \ud68c\ub85c, \ub54c\ub54c\ub85c OLTC<\/td>\n<\/tr>\n<tr>\n<td>\uc1a1\uc804 \ubcc0\uc804\uc18c<\/td>\n<td>220\/110 kV (2:1)<\/td>\n<td>17\ub2e8\uacc4\uc5d0\uc11c \u00b116%<\/td>\n<td>OLTC<\/td>\n<\/tr>\n<tr>\n<td>\ud558\uc804\uc1a1<\/td>\n<td>110\/20 kV (5.5:1)<\/td>\n<td>13\ub2e8\uacc4\uc5d0\uc11c \u00b112%<\/td>\n<td>OLTC<\/td>\n<\/tr>\n<tr>\n<td>\uc0b0\uc5c5 \uc804\ub825<\/td>\n<td>33\/11 kV (3:1)<\/td>\n<td>9\ub2e8\uacc4\uc5d0\uc11c \u00b110%<\/td>\n<td>OLTC \ub610\ub294 \uc624\ud504 \ud68c\ub85c<\/td>\n<\/tr>\n<tr>\n<td>\ubc30\uc804<\/td>\n<td>11\/0.4 kV (27.5:1)<\/td>\n<td>\uc624\ud504 \ud68c\ub85c\uc5d0\uc11c \u00b12.5%<\/td>\n<td>\uc624\ud504 \ud68c\ub85c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\ubc30\uc804 \ubcc0\uc555\uae30\ub294 \uc8fc\uae30\uc801\uc778 \uc870\uc815\ub9cc \ud544\uc694\ud558\ubbc0\ub85c, \u00b12.5% \ubc0f \u00b15%\uc758 \ub2e8\uacc4\ub85c \uc624\ud504\ub85c\ub4dc \ud0ed\uc774 \uacc4\uc808\uc801 \ubd80\ud558 \ubcc0\ub3d9\uc744 \uace0\ub824\ud558\uae30\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \ubc18\uba74, \uc1a1\uc804 \ubc0f \ud558\uc1a1\uc804 \ubcc0\uc555\uae30\ub294 OLTC\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc73c\uba70, \uc774\ub294 \ub300\uaddc\ubaa8 \uace0\uac1d \uadf8\ub8f9\uc774 \uc1a1\uc804 \uc804\uc555\uc758 \uc791\uc6a9\uc5d0 \uc9c1\uc811 \uc601\ud5a5\uc744 \ubc1b\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<h2 id=\"prices\">\ud0ed \uccb4\uc778\uc800 \ubc0f \ubcc0\uc555\uae30 \uac00\uaca9 \uc601\ud5a5<\/h2>\n<p>\ud0ed \uccb4\uc778\uc800 \uc120\ud0dd\uc740 \ubaa8\ub4e0 \ubcc0\uc555\uae30 \uc608\uc0b0\uc5d0\uc11c \uc2e4\uc81c \ud56d\ubaa9\uc785\ub2c8\ub2e4. \uacc4\ud68d \ubc94\uc704:<\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<caption>\ud0ed \uccb4\uc778\uc800 \uc120\ud0dd\uc758 \uac00\uaca9 \uc601\ud5a5<\/caption>\n<tbody>\n<tr>\n<th>\ubcc0\uc555\uae30<\/th>\n<th>OLTC \uc5c6\uc774<\/th>\n<th>OLTC\uc640 \ud568\uaed8<\/th>\n<th>\ud504\ub9ac\ubbf8\uc5c4<\/th>\n<\/tr>\n<tr>\n<td>5 MVA \/ 33 kV<\/td>\n<td>$55,000\u2013$90,000<\/td>\n<td>$75,000\u2013$130,000<\/td>\n<td>+$15,000\u2013$40,000<\/td>\n<\/tr>\n<tr>\n<td>20 MVA \/ 110 kV<\/td>\n<td>$150,000\u2013$260,000<\/td>\n<td>$175,000\u2013$320,000<\/td>\n<td>+$20,000\u2013$60,000<\/td>\n<\/tr>\n<tr>\n<td>50 MVA \/ 110 kV<\/td>\n<td>$360,000\u2013$700,000<\/td>\n<td>$400,000\u2013$800,000<\/td>\n<td>+$25,000\u2013$90,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc694\uae08\uc740 \uc0ac\uc591\uc758 \uc885\ub958, \ube0c\ub79c\ub4dc \ubc0f \uc9c0\uc5ed\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4. \uadf8\ub9ac\ub4dc \uc5f0\uacb0 \uc7a5\uce58\uc5d0 \uad00\ub828\ub41c \ub192\uc740 \ube44\uc6a9\uc740 \uc9e7\uc740 \uc2dc\uac04 \ub0b4\uc5d0 \ubcf4\uc0c1\ub429\ub2c8\ub2e4: \ubd80\ud558 \uc804\ud658\uae30(OLTC)\ub294 \uc804\uc555\uc744 \uc870\uc808\ud558\uace0 \ud53c\ub354\uc758 \uc5d0\ub108\uc9c0 \uc190\uc2e4\uc744 \uc904\uc774\uae30 \ub54c\ubb38\uc5d0 \ube44\uc6a9\uc744 \ube60\ub974\uac8c \ud68c\uc218\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10526\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/How-Transformer-Ratio-Works.webp\" alt=\"\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"brands\">\ube0c\ub79c\ub4dc \ubc0f \ube44\uc728 \uc124\uacc4\uc758 \ucc28\uc774<\/h2>\n<p>\ube44\uc728 \uc218\ud559\uc740 \uc6d0\ub798 \ud68c\uc0ac\uc640 \uad00\uacc4\uc5c6\uc774 \ub3d9\uc77c\ud558\uac8c \uc720\uc9c0\ub429\ub2c8\ub2e4 \u2014 \ubb3c\ub9ac\ud559\uc740 \ud611\uc0c1 \ub300\uc0c1\uc774 \uc544\ub2d9\ub2c8\ub2e4; \uadf8\ub7ec\ub098 \uc81c\uc870\uc5c5\uccb4\ub294 \ud0ed \ubcc0\uacbd\uae30 \uc124\uacc4, \uc81c\uc5b4, \ud488\uc9c8 \uad00\ub9ac \ubc0f \uac00\uaca9\uc5d0 \ub530\ub77c \ucc28\ubcc4\ud654\ub429\ub2c8\ub2e4. \uc2e0\ub8b0\uc131 \uae30\uc900\uc740 MR(\ub9c8\uc2dc\ub128\ud30c\ube0c\ub9ac\ud06c \ub77c\uc778\ud558\uc6b0\uc820) \ubc0f ABB \ud0ed \ubcc0\uacbd\uae30\uc5d0 \uc758\ud574 \uc124\uc815\ub418\uba70, \uc544\uc2dc\uc544 \uae30\uc5c5\ub4e4\uc740 \uc810\uc810 \ub354 \uc800\ub834\ud55c \uac00\uaca9\uc73c\ub85c \ub77c\uc774\uc13c\uc2a4 \ub610\ub294 \uc790\uccb4 \uac1c\ubc1c\ud55c OLTC \uc124\uacc4\ub97c \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<caption>\ubcc0\uc555\uae30 \ube0c\ub79c\ub4dc \ubc0f \ud0ed \ubcc0\uacbd \uae30\ub2a5<\/caption>\n<tbody>\n<tr>\n<th>\ube0c\ub79c\ub4dc<\/th>\n<th>\uad6d\uac00<\/th>\n<th>\ud0ed \ubcc0\uacbd\uae30 \uac15\uc810<\/th>\n<th>\uc9c0\ud45c \uac00\uaca9 (20 MVA\/110 kV, OLTC \ud3ec\ud568)<\/th>\n<\/tr>\n<tr>\n<td>\ud788\ud0c0\uce58 \uc5d0\ub108\uc9c0<\/td>\n<td>\uc2a4\uc704\uc2a4\/\uc77c\ubcf8<\/td>\n<td>\ub3c5\uc810 OLTC, AVR \ud1b5\ud569<\/td>\n<td>$450,000\u2013$700,000<\/td>\n<\/tr>\n<tr>\n<td>\uc9c0\uba58\uc2a4 \uc5d0\ub108\uc9c0<\/td>\n<td>\ub3c5\uc77c<\/td>\n<td>MR OLTC \uc635\uc158, \ub514\uc9c0\ud138 \uc81c\uc5b4<\/td>\n<td>$430,000\u2013$680,000<\/td>\n<\/tr>\n<tr>\n<td>\uc288\ub098\uc774\ub354 \uc77c\ub809\ud2b8\ub9ad<\/td>\n<td>\ud504\ub791\uc2a4<\/td>\n<td>\ubc30\uae09 \uc9d1\uc911, MV \uc720\ub2db<\/td>\n<td>$280,000\u2013$450,000<\/td>\n<\/tr>\n<tr>\n<td>TBEA<\/td>\n<td>\uc911\uad6d<\/td>\n<td>\uc790\uccb4 OLTC, \uaddc\ubaa8<\/td>\n<td>$180,000\u2013$320,000<\/td>\n<\/tr>\n<tr>\n<td>\uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825<\/td>\n<td>\uc911\uad6d<\/td>\n<td>\ub9de\ucda4 \ube44\uc728 \ubc0f \ud0ed, MR \ub610\ub294 \uc790\uccb4 OLTC<\/td>\n<td>$160,000\u2013$300,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\ube44\uc6a9\uc740 \uc0ac\uc591 \ubc0f \uc9c0\uc5ed\uc5d0 \ub530\ub77c \uacb0\uc815\ub429\ub2c8\ub2e4. \ub9de\ucda4\ud615 \ube44\uc728 \ubc0f \ud0ed \uc0ac\uc591\uc774 \ud544\uc694\ud55c \ud504\ub85c\uc81d\ud2b8 \u2014 \uace0\uc720 \ubca1\ud130 \uadf8\ub8f9, \ud2b9\ubcc4 \ud0ed \ubc94\uc704 \ub610\ub294 \ud2b9\uc815 \ube0c\ub79c\ub4dc\uc758 OLTC \u2014 \uc5d0\uc11c \uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825\uc740 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \ud30c\ud2b8\ub108\uc785\ub2c8\ub2e4: 50 kva\uc5d0\uc11c 220 kV\uae4c\uc9c0\uc758 \ubc30\uae09 \ubc0f \uc804\ub825 \ubcc0\uc555\uae30\ub97c \uc81c\uc870\ud558\uace0, \uac1c\ubcc4 \ud0ed \uad6c\uc131\uc5d0 \ub300\ud55c \uacac\uc801\uc744 \uc81c\uacf5\ud558\uba70, \ud544\uc694\ud55c MR \ub610\ub294 \uc720\uc0ac\ud55c \ubd80\ud558 \uc804\ud658\uae30\ub97c \uc124\uce58\ud569\ub2c8\ub2e4. \uac01 \uc720\ub2db\uc740 IEC 60076-1 \ud45c\uc900\uc5d0 \ub530\ub77c \ubaa8\ub4e0 \ud0ed\uc5d0 \ub300\ud55c \ube44\uc728 \ud14c\uc2a4\ud2b8 \uae30\ub85d\uacfc \ud568\uaed8 \uc81c\uacf5\ub418\uba70, \uacf5\uc7a5 \uac00\uaca9\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc720\ub7fd \uae30\uc5c5\uc758 \uac00\uaca9\ubcf4\ub2e4 30%-50% \ub0ae\uc2b5\ub2c8\ub2e4.<\/p>\n<h2 id=\"faq\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h3>\ubcc0\uc555\uae30 \ube44\uc728\uc740 \uc5b4\ub5bb\uac8c \uacc4\uc0b0\ub429\ub2c8\uae4c?<\/h3>\n<p>\ubcc0\uc555\uae30 \ube44\uc728\uc740 1\ucc28 \ucf54\uc77c\uc758 \uac10\uc740 \uc218\ub97c 2\ucc28 \ucf54\uc77c\uc758 \uac10\uc740 \uc218(N1\/N2)\ub85c \ub098\ub208 \uac12\uc73c\ub85c \uacb0\uc815\ub418\uba70, \uc774\ub294 \ubb34\ubd80\ud558 \uc804\uc555 \ube44\uc728(V1\/V2)\uacfc \uac19\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 110 kV\/20 kV\uc5d0\uc11c \uc801\uc6a9\ub418\ub294 \ubcc0\uc555\uae30\ub294 5.5:1 \ube44\uc728\uc744 \uac00\uc9c0\uba70, 11 kV\/0.4 kV \ubcc0\uc555\uae30\uc758 \ube44\uc728\uc740 27.5:1\uc785\ub2c8\ub2e4. \uc5ed\uad00\uacc4 \ub54c\ubb38\uc5d0, \ube44\uc728\uc774 1\ubcf4\ub2e4 \uc791\uc740 \uc2b9\uc555 \ubcc0\uc555\uae30(\uc608: 18\/400 kV \uc804\uc555\uc744 \uac00\uc9c4 \ubcc0\uc555\uae30\uc758 \uacbd\uc6b0 0.045)\uc5d0\uc11c\ub294 \ucd9c\ub825 \uc804\uc555\uc774 \ub192\uace0 \ucd9c\ub825 \uc804\ub958\ub294 \ub0ae\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\ubcc0\uc555\uae30 \ube44\uc728\uc758 \ud5c8\uc6a9 \uc624\ucc28\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/h3>\n<p>IEC 60076-1\uc5d0 \ub530\ub77c, \uc8fc \ud0ed\uc5d0\uc11c\uc758 \ube44\uc728\uc740 \uba85\ud310 \uac12\uc758 \u00b10.5% \uc774\ub0b4\uc5ec\uc57c \ud558\uba70, \ub2e4\ub978 \ud2b9\ubcc4\ud55c \uc9c0\uc2dc\uac00 \uc5c6\ub294 \ud55c \ubaa8\ub4e0 \ud0ed \uc704\uce58\uc5d0\uc11c \ub3d9\uc77c\ud55c \ud5c8\uc6a9 \uc624\ucc28\uac00 \uc801\uc6a9\ub429\ub2c8\ub2e4. \ud604\uc7a5 TTR \ubbf8\ud130\ub294 \u00b10.1%\ub85c \uce21\uc815\ud558\ubbc0\ub85c, \uc2dc\uc6b4\uc804 \ud14c\uc2a4\ud2b8\uc5d0\uc11c 0.5%\ub97c \ucd08\uacfc\ud558\ub294 \ud3b8\ucc28\ub294 \ub2e8\ub77d\ub41c \uac10\uae30 \ub610\ub294 \uc798\ubabb\ub41c \uc5f0\uacb0\uc5d0 \ub300\ud55c \uc870\uc0ac\ub97c \uc694\uad6c\ud569\ub2c8\ub2e4.<\/p>\n<h3>\ubcc0\uc555\uae30\uac00 \uc804\uc555 \uc870\uc815\uc744 \uc704\ud574 \ud0ed \ubcc0\uacbd\uae30\uac00 \ud544\uc694\ud55c \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/h3>\n<p>\ubd80\ud558, \ubc1c\uc804 \ubc0f \uc6d0\ucc9c\uc73c\ub85c\ubd80\ud130\uc758 \uac70\ub9ac \uae30\ubc18\uc758 \uc120 \uc804\uc555 \ubcc0\ub3d9\uc73c\ub85c \uc778\ud574 \ube44\uc728 \uc870\uc815\uc774 \uc5c6\uc73c\uba74 \ubc30\uc804 \ud53c\ub354\ub294 \ud558\ub8e8 \uc885\uc77c 5%\u201310% \ubcc0\ub3d9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. OLTC\ub294 \u00b110%\uc5d0\uc11c \u00b116% \ubc94\uc704 \ub0b4\uc5d0\uc11c 1.25%\u20132.5%\uc758 \ub2e8\uacc4\ub85c \ube44\uc728\uc744 \uc870\uc815\ud558\uc5ec \uc57d \u00b12%\uc758 2\ucc28 \uc804\uc555\uc744 \uc790\ub3d9\uc73c\ub85c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub294 \ubaa8\ud130, \uc804\uc790 \uc7a5\uce58 \ubc0f \uace0\uac1d \uc7a5\ube44\uac00 \uacfc\uc804\uc555 \ubc0f \uc800\uc804\uc555\uc73c\ub85c\ubd80\ud130 \uc548\uc804\ud558\ub3c4\ub85d \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n<h3>\ub450 \uac1c\uc758 \ubcc0\uc555\uae30\uac00 \ubcd1\ub82c\ub85c \uc5f0\uacb0\ub418\uc5b4 \uc788\uc744 \ub54c \ube44\uc728\uc774 \ub2e4\ub974\uba74 \uc5b4\ub5bb\uac8c \ub429\ub2c8\uae4c?<\/h3>\n<p>\uc678\ubd80\uc5d0\uc11c \uc624\ub294 \ubd80\ud558\uac00 \uc5c6\ub354\ub77c\ub3c4 \ub450 \uc7a5\uce58 \uac04\uc5d0 \uc804\ub958\uac00 \uc21c\ud658\ud569\ub2c8\ub2e4. \ub2e4\uc2dc \ub9d0\ud574, \ubcc0\uc555\uae30\uac00 \ub300\uae30 \ubaa8\ub4dc\uc77c \ub54c\uc5d0\ub3c4 \uc21c\ud658 \uc804\ub958\uac00 \ud750\ub985\ub2c8\ub2e4. 20 MVA\/110 kV \uc7a5\uce58\uc758 \uacbd\uc6b0, 1% \ube44\uc728 \ubd88\uc77c\uce58\ub9cc\uc73c\ub85c\ub3c4 \uc57d 2%-5%\uc758 \uc815\uaca9 \uc804\ub958\uac00 \ud750\ub974\ub294 \uc21c\ud658 \uc804\ub958\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ub610\ud55c, \ubd88\uc77c\uce58\uac00 \uc99d\uac00\ud558\uba74 \uc21c\ud658 \uc804\ub958\ub3c4 \uadf8\uc5d0 \ub530\ub77c \uc99d\uac00\ud569\ub2c8\ub2e4. \ube44\uc728\uc744 \ud0ed \uc120\ud0dd \uacfc\uc815\uc744 \ud1b5\ud574 \ub3d9\uc77c\ud558\uac8c \ub9cc\ub4dc\ub294 \uc6b4\uc601\uc790\uc758 \ud589\ub3d9\uc740 \uc18c\ud615 \ubcc0\uc555\uae30\uc758 \uc815\uaca9\uc758 10% \uc774\uc0c1\uc73c\ub85c \uc21c\ud658 \uc804\ub958\uac00 \uc0c1\uc2b9\ud558\ub294 \uac83\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n<h3>\ubd80\ud558 \uc804\ud658 \ud0ed \uccb4\uc778\uc800\uac00 \ubcc0\uc555\uae30 \ube44\uc6a9\uc5d0 \uc5bc\ub9c8\ub098 \ucd94\uac00\ub429\ub2c8\uae4c?<\/h3>\n<p>OLTC\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 5 MVA\uc5d0\uc11c 50 MVA\ub85c \uc815\uaca9\ub41c \uc804\ub825 \ubcc0\uc555\uae30\uc758 \ube44\uc6a9\uc5d0 $15,000\uc5d0\uc11c $60,000\uc744 \ucd94\uac00\ud560 \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4. \ub354 \ub192\uc740 \uc815\uaca9\uc758 \ubcc0\uc555\uae30\ub294 \ub354 \ube44\uc309\ub2c8\ub2e4. \uc774 \ud22c\uc790\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \ub098\uc740 \uc804\uc555 \uc81c\uc5b4\uc640 \ub0ae\uc740 \uc804\ub825 \uc190\uc2e4, \uc7a5\ube44 \uace0\uc7a5\uc758 \ubd80\uc7ac\ub85c \uc778\ud574 \ubcf4\uc0c1\uc744 \ubc1b\uc2b5\ub2c8\ub2e4.<\/p>\n<h2 id=\"references\">\ucc38\uace0 \ubb38\ud5cc<\/h2>\n<ul>\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/639\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60076-1: \uc804\ub825 \ubcc0\uc555\uae30 \u2014 \uc77c\ubc18<\/a> \u2014 \ube44\uc728, \ud5c8\uc6a9 \uc624\ucc28, \ud0ed \ubc0f \uc2dc\ud5d8 \uc694\uad6c \uc0ac\ud56d\uc744 \uc815\uc758\ud569\ub2c8\ub2e4.<\/li>\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/640\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60076-8: \uc751\uc6a9 \uac00\uc774\ub4dc<\/a> \u2014 \uc804\ub825 \ubcc0\uc555\uae30\uc758 \ud0ed, \ubcd1\ub82c \uc791\ub3d9 \ubc0f \uc751\uc6a9\uc5d0 \ub300\ud55c \uc9c0\uce68.<\/li>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\/document\/5307241\" rel=\"nofollow noopener\" target=\"_blank\">IEEE C57.12.00: \uc561\uccb4 \uce68\uc9c0 \ubcc0\uc555\uae30\uc5d0 \ub300\ud55c \uc77c\ubc18 \uc694\uad6c \uc0ac\ud56d<\/a> \u2014 \ube44\uc728 \ubc0f \ud0ed \uc0ac\uc591\uc5d0 \ub300\ud55c \ubd81\ubbf8 \uc694\uad6c \uc0ac\ud56d.<\/li>\n<li><a href=\"https:\/\/www.reinhausen.com\/en\" rel=\"nofollow noopener\" target=\"_blank\">\ub9c8\uc2dc\ub128\ud30c\ube0c\ub9ad \ub77c\uc778\ud558\uc6b0\uc820 (MR)<\/a> \u2014 \ubd80\ud558 \uc804\ud658 \ud0ed \uccb4\uc778\uc800 \uc124\uacc4 \ubc0f \uc81c\uc5b4\uc5d0 \ub300\ud55c \uc0b0\uc5c5 \ucc38\uc870.<\/li>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\/document\/8586253\" rel=\"nofollow noopener\" target=\"_blank\">IEEE C57.12.90: \uc561\uccb4 \uce68\uc9c0 \ubc30\uc804, \uc804\ub825 \ubc0f \uc870\uc815 \ubcc0\uc555\uae30\uc5d0 \ub300\ud55c \uc2dc\ud5d8 \ucf54\ub4dc<\/a> \u2014 \ube44\uc728 \uc2dc\ud5d8\uc744 \ud3ec\ud568\ud55c \uc2dc\ud5d8 \uc808\ucc28.<\/li>\n<li><a href=\"https:\/\/www.epa.gov\/sustainable-energy\/transformer-efficiency\" rel=\"nofollow noopener\" target=\"_blank\">US EPA: \ubcc0\uc555\uae30 \ud6a8\uc728 \ud504\ub85c\uadf8\ub7a8<\/a> \u2014 \uc804\uc555 \uc81c\uc5b4 \ubc0f \ud6a8\uc728\uc801\uc778 \ubcc0\uc555\uae30\uac00 \ub300\uaddc\ubaa8\uc5d0\uc11c \uc911\uc694\ud55c \uc774\uc720\uc5d0 \ub300\ud55c \ubc30\uacbd.<\/li>\n<\/ul>\n<h2 id=\"conclusion\">\uacb0\ub860<\/h2>\n<p>\ubcc0\uc555\uae30 \ube44\uc728\uc740 \uc804\ub825 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc81c\uc5b4 \uc7a5\uce58\ucc98\ub7fc \uc791\uc6a9\ud569\ub2c8\ub2e4. \ud0ed \uccb4\uc778\uc800\uc5d0 \uc758\ud574 \uc774\ub8e8\uc5b4\uc9c4 \ud134 \ube44\uc728\uc758 \ubbf8\uc138\ud558\uace0 \uc815\ud655\ud55c \ubcc0\ud654\ub294 \ubc95\uc801 \ud55c\ub3c4 \ub0b4\uc5d0\uc11c \uc804\uc555\uc744 \uc720\uc9c0\ud558\uba74\uc11c \uc218\ubc31 \ud0ac\ub85c\ubbf8\ud130\uc758 \uc804\ub825\uc120\uc5d0 \uac78\uccd0 \uc804\ub825 \uacf5\uae09\uc744 \ud655\ubcf4\ud560 \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4. \ube44\uc728 \uce21\uc815, \uadf8 \ud55c\uacc4 \ubc0f \ubcd1\ub82c \uc791\ub3d9\uc5d0 \ub300\ud55c \uc9c0\uc2dd\uc740 \ubcc0\uc555\uae30\ub97c \uc9c0\uc815, \uc2dc\ud5d8 \ub610\ub294 \uc11c\ube44\uc2a4\ud558\ub294 \ubaa8\ub4e0 \uc804\ubb38\uac00\uc5d0\uac8c \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n<p>\ube44\uc728\uc740 \ub610\ud55c \ubb34\ubd80\ud558 \uc804\uc555 \ube44\uc728\uc785\ub2c8\ub2e4. \ubc30\uc804 \ubcc0\uc555\uae30\ub294 5.5:1\uc5d0\uc11c 27.5:1\uae4c\uc9c0 \uc791\ub3d9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br \/>\n\ubd80\ud558 \uc804\ud658 \ud0ed \uccb4\uc778\uc800\uac00 \uc788\ub294 \ubcc0\uc555\uae30\ub294 \ube44\uc728\uc744 -10%\uc5d0\uc11c +16%\ub85c \uc218\uc815\ud558\uace0 \ud0ed \ub808\ubc84\ub97c 13-17 \ub2e8\uacc4\ub85c \uc704\uce58\uc2dc\ud0b5\ub2c8\ub2e4.<br \/>\n\ubcc0\uc555\uae30\ub294 \uc804\ub958\uc758 \uc21c\ud658\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \ub3d9\uc77c\ud55c \ube44\uc728\uacfc \uc784\ud53c\ub358\uc2a4\ub97c \uac00\uc838\uc57c \ud569\ub2c8\ub2e4. \ube44\uc728 \uc2dc\ud5d8\uc740 \uc758\ubb34\uc801\uc774\uba70 (IEC 60076-1, \ud5c8\uc6a9 \uc624\ucc28 \u00b10.5%) \ub2e8\ub77d \ud134\uc744 \uac10\uc9c0\ud560 \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4.<\/p>\n<p>\uadc0\ud558\uc758 \ud504\ub85c\uc81d\ud2b8\uac00 \ud2b9\uc815 \ube44\uc728, \ud0ed \ubc94\uc704 \ub610\ub294 OLTC \uad6c\uc131\uc774 \ud544\uc694\ud55c \uacbd\uc6b0, <a href=\"https:\/\/subian-electric.com\/ko\/\">\uc7a5\uc464 \uc218\ube44\uc548 \uc804\ub825<\/a> 50 kVA\uc5d0\uc11c 220 kV \ud074\ub798\uc2a4\uae4c\uc9c0\uc758 \ubc30\uc804 \ubc0f \uc804\ub825 \ubcc0\uc555\uae30\ub97c \uc124\uacc4\ud558\uace0 \uacf5\uae09\ud560 \uc218 \uc788\uc73c\uba70, \ubaa8\ub4e0 \uc7a5\uce58\uc5d0 \ub300\ud55c \uc804\uccb4 \ube44\uc728 \ud14c\uc2a4\ud2b8 \ubcf4\uace0\uc11c\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>A substation operator looked at his electronic meter today when a thunderstorm arrived and changed the 110 kV line of power from 108 kV to 116 kV. In spite of that, the 20 kV bus on the secondary side showed values between 19.9 and 20.1 kV at the same time. The instrument that works there [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":10524,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[77],"tags":[],"class_list":["post-10523","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/10523","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/comments?post=10523"}],"version-history":[{"count":2,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/10523\/revisions"}],"predecessor-version":[{"id":11088,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/posts\/10523\/revisions\/11088"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media\/10524"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media?parent=10523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/categories?post=10523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/tags?post=10523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}