{"id":50433,"date":"2026-03-27T13:09:11","date_gmt":"2026-03-27T13:09:11","guid":{"rendered":"https:\/\/www.kdmsteel.com\/?p=50433"},"modified":"2026-03-27T13:27:54","modified_gmt":"2026-03-27T13:27:54","slug":"current-transformer-vs-potential-transformer","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/","title":{"rendered":"\uc804\ub958\ubcc0\uc555\uae30\uc640 \uc804\uc555\ubcc0\uc555\uae30\uc758 \uc8fc\uc694 \ucc28\uc774\uc810 \uc124\uba85"},"content":{"rendered":"<p>\ubc1c\uc804\uc18c \uac1c\ud3d0 \uc7a5\uce58\ub97c \ub2e4\ub8e8\uac70\ub098 \ubcc0\uc804\uc18c\ub97c \uad00\ub9ac\ud560 \ub54c\ub294 \uc815\ud655\uc131\uacfc \uc548\uc804\uc131\uc774 \ub9e4\uc6b0 \uc911\uc694\ud558\ub2e4\ub294 \uac83\uc744 \uc798 \uc54c\uace0 \uacc4\uc2e4 \uac83\uc785\ub2c8\ub2e4. \uc804\ub958\ubcc0\uc555\uae30(CT)\uc640 \uc804\uc555\ubcc0\uc555\uae30(PT) \uc911 \uc5b4\ub290 \uac83\uc774 \ub354 \ub098\uc740\uc9c0\ub294 \uba85\ud655\ud558\uac8c \uaddc\uc815\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \uc804\ub958\ubcc0\uc555\uae30\uc640 \uc804\uc555\ubcc0\uc555\uae30\uc758 \ucc28\uc774\uc810\uc744 \uc774\ud574\ud558\uace0 \ud544\uc694\uc5d0 \ub530\ub77c \uc801\uc808\ud55c \uc7a5\uce58\ub97c \uc120\ud0dd\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \ub4dc\ub9ac\uace0\uc790 \ud569\ub2c8\ub2e4.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\ubaa9\ucc28<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\ubaa9\ucc28 \ud1a0\uae00\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\ube44\ub140\uc7a5<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#What_Is_a_Current_Transformer_CT\" >\uc804\ub958\ubcc0\uc555\uae30(CT)\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#What_Is_a_Potential_Transformer_PT\" >\uc804\uc555\ubcc0\uc555\uae30(PT)\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Top_10_Key_Differences_between_Current_Transformer_vs_Potential_Transformer\" >\uc804\ub958\ubcc0\uc555\uae30\uc640 \uc804\uc555\ubcc0\uc555\uae30\uc758 \uc8fc\uc694 \ucc28\uc774\uc810 10\uac00\uc9c0<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#1_Function_Primary_Purpose\" >1. \uae30\ub2a5 (\uc8fc\uc694 \ubaa9\uc801)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_CT\" >\uc804\ub958\ubcc0\uc555\uae30(CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Potential_Transformer_PT\" >\uc804\uc555\ubcc0\uc555\uae30(PT)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#2_Working_Principle_Focus\" >2. \ud575\uc2ec \uc6b4\uc601 \uc6d0\uce59<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_CT-2\" >\uc804\ub958\ubcc0\uc555\uae30(CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Potential_Transformer_PT-2\" >\uc804\uc555\ubcc0\uc555\uae30(PT)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#3_Connection_in_Circuit\" >3. \ud68c\ub85c \uc5f0\uacb0<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_CT-3\" >\uc804\ub958\ubcc0\uc555\uae30(CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Potential_Transformer_PT-3\" >\uc804\uc555\ubcc0\uc555\uae30(PT)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#4_Input_Quantity\" >4. \uc785\ub825 \uc218\ub7c9<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_CT-4\" >\uc804\ub958\ubcc0\uc555\uae30(CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Potential_Transformer_PT-4\" >\uc804\uc555\ubcc0\uc555\uae30(PT)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#5_Output_Range\" >5. \ucd9c\ub825 \ubc94\uc704<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_CT-5\" >\uc804\ub958\ubcc0\uc555\uae30(CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Potential_Transformer_PT-5\" >\uc804\uc555\ubcc0\uc555\uae30(PT)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#6_Turns_Ratio_Winding_Design\" >6. \uad8c\uc120\ube44 \ubc0f \uad8c\uc120 \uc124\uacc4<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_CT-6\" >\uc804\ub958\ubcc0\uc555\uae30(CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Potential_Transformer_PT-6\" >\uc804\uc555\ubcc0\uc555\uae30(PT)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#7_Transformer_Type\" >7. \ubcc0\uc555\uae30 \uc720\ud615<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_CT-7\" >\uc804\ub958\ubcc0\uc555\uae30(CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Potential_Transformer_PT-7\" >\uc804\uc555\ubcc0\uc555\uae30(PT)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#8_Secondary_Circuit_Behavior\" >8. 2\ucc28 \ud68c\ub85c \ub3d9\uc791<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_CT-8\" >\uc804\ub958\ubcc0\uc555\uae30(CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Potential_Transformer_PT-8\" >\uc804\uc555\ubcc0\uc555\uae30(PT)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#9_Dependency_on_Load_Burden\" >9. \ubd80\ud558(\ubd80\ub2f4)\uc5d0 \ub300\ud55c \uc758\uc874\uc131<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_CT-9\" >\uc804\ub958\ubcc0\uc555\uae30(CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Potential_Transformer_PT-9\" >\uc804\uc555\ubcc0\uc555\uae30(PT)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#10_Applications_in_Power_Systems\" >10. \uc804\ub825 \uc2dc\uc2a4\ud15c\uc5d0\uc11c\uc758 \uc751\uc6a9<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_CT-10\" >\uc804\ub958\ubcc0\uc555\uae30(CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Potential_Transformer_PT-10\" >\uc804\uc555\ubcc0\uc555\uae30(PT)<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Summary_Table_CT_vs_PT_at_a_Glance\" >\uc694\uc57d\ud45c: CT\uc640 PT \ube44\uad50<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Current_Transformer_vs_Potential_Transformer_%E2%80%93_Which_One_Is_Best\" >\uc804\ub958 \ubcc0\uc555\uae30 vs. \uc804\uc555 \ubcc0\uc555\uae30 \u2013 \uc5b4\ub290 \uac83\uc774 \ub354 \uc88b\uc744\uae4c\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Get_Your_Customized_Transformer_by_KDM_Steel\" >KDM Steel\uc5d0\uc11c \ub9de\ucda4\ud615 \ubcc0\uc555\uae30\ub97c \uc8fc\ubb38\ud558\uc138\uc694<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#FAQS\" >\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Why_shouldnt_CT_Extra_be_open\" >CT Extra\uac00 \ubb38\uc744 \uc5f4\uba74 \uc548 \ub418\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc778\uac00\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Can_CT_and_PT_be_used_instead_of_each_other\" >CT\uc640 PT\ub97c \uc11c\ub85c \ub300\uccb4\ud574\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub098\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#When_do_CT_and_PT_work_together\" >CT\uc640 PT\ub294 \uc5b8\uc81c \ud568\uaed8 \uc791\uc5c5\ud558\ub098\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Which_transformer_is_better_for_you\" >\uc5b4\ub5a4 \ubcc0\uc555\uae30\uac00 \ub2f9\uc2e0\uc5d0\uac8c \ub354 \uc801\ud569\ud560\uae4c\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\ub958-\ubcc0\uc555\uae30\uc640-\uc804\uc555-\ubcc0\uc555\uae30-\ube44\uad50\/#Why_are_transformers_for_instruments_important\" >\uacc4\uce21\uae30\uc6a9 \ubcc0\uc555\uae30\uac00 \uc911\uc694\ud55c \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_a_Current_Transformer_CT\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50437\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/What-Is-a-Current-Transformer-CT.jpg\" alt=\"\uc804\ub958\ubcc0\uc555\uae30(CT)\ub780 \ubb34\uc5c7\uc778\uac00\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/What-Is-a-Current-Transformer-CT.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/What-Is-a-Current-Transformer-CT-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/What-Is-a-Current-Transformer-CT-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/What-Is-a-Current-Transformer-CT-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>\uacc4\uce21 \ubc0f \uc548\uc804 \uacc4\uc804\uae30\uc5d0\uc11c \ub192\uc740 1\ucc28 \uc804\ub958\ub97c \ud45c\uc900 \uc548\uc804 \uc218\uc900(\uc77c\ubc18\uc801\uc73c\ub85c 5A \ub610\ub294 1A)\uc73c\ub85c \ub0ae\ucd94\ub294 \uac83\uc744 \ub77c\uace0 \ud569\ub2c8\ub2e4. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Current_transformer\"><strong>\uc804\ub958 \ubcc0\uc555\uae30<\/strong><\/a> (CT). \uc774\ub97c \uc804\uc120\uc5d0 \uc9c1\ub82c\ub85c \uc5f0\uacb0\ud558\uba74 &quot;\uc804\ub958 \uac10\uc18c&quot; \uc7a5\uce58\uac00 \ub429\ub2c8\ub2e4. \ub9c8\uce58 \uc804\ub958 \ud750\ub984\uc744 \ubaa8\ub2c8\ud130\ub9c1\ud558\ub294 \uac83\uacfc \uac19\uc544\uc11c \uc800\uc804\uc555 \uacc4\ub7c9\uae30\uac00 \uace0\uc804\ub825\uc120\uc744 \uc548\uc804\ud558\uac8c \uac10\uc2dc\ud560 \uc218 \uc788\uac8c \ud574\uc90d\ub2c8\ub2e4.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_a_Potential_Transformer_PT\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50438\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/What-Is-a-Potential-Transformer-PT.jpg\" alt=\"\uc804\uc555\ubcc0\uc555\uae30(PT)\ub780 \ubb34\uc5c7\uc778\uac00?\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/What-Is-a-Potential-Transformer-PT.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/What-Is-a-Potential-Transformer-PT-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/What-Is-a-Potential-Transformer-PT-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/What-Is-a-Potential-Transformer-PT-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>\uc804\uc555\ubcc0\uc555\uae30(PT)\uc758 \ub2e4\ub978 \uc774\ub984\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Voltage_transformer\"><strong>\uc804\uc555 \ubcc0\uc555\uae30<\/strong><\/a> (VT)\ub294 11kV \ub610\ub294 33kV\uc640 \uac19\uc740 \ub192\uc740 \uc2dc\uc2a4\ud15c \uc804\uc555\uc744 100V \ub610\ub294 110V\uc640 \uac19\uc740 \uc815\uc0c1\uc801\uc778 \uc800\uc804\uc555\uc73c\ub85c \ub0ae\ucd94\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc804\ub825\uc120\uacfc \ubcd1\ub82c\ub85c \uc5f0\uacb0\ub418\uba74 &quot;\uc804\uc555 \uac15\ud558&quot; \ubaa8\ub2c8\ud130\ub85c \uc791\ub3d9\ud569\ub2c8\ub2e4. \uace0\uc804\uc555 \uc704\ud5d8\uc73c\ub85c\ubd80\ud130 \uc804\uae30\ub97c \ubcf4\ud638\ud558\uace0 \uacc4\ub7c9\uae30\uc640 \uc2a4\uc704\uce58\uac00 \uc815\ud655\ud55c \uc804\uc555 \uac12\uc744 \uc77d\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Top_10_Key_Differences_between_Current_Transformer_vs_Potential_Transformer\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30\uc640 \uc804\uc555\ubcc0\uc555\uae30\uc758 \uc8fc\uc694 \ucc28\uc774\uc810 10\uac00\uc9c0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50439\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Top-10-Key-Differences-between-Current-Transformer-vs-Potential-Transformer.jpg\" alt=\"\uc804\ub958\ubcc0\uc555\uae30\uc640 \uc804\uc555\ubcc0\uc555\uae30\uc758 \uc8fc\uc694 \ucc28\uc774\uc810 10\uac00\uc9c0\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Top-10-Key-Differences-between-Current-Transformer-vs-Potential-Transformer.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Top-10-Key-Differences-between-Current-Transformer-vs-Potential-Transformer-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Top-10-Key-Differences-between-Current-Transformer-vs-Potential-Transformer-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Top-10-Key-Differences-between-Current-Transformer-vs-Potential-Transformer-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Function_Primary_Purpose\"><\/span><strong>1. \uae30\ub2a5 (\uc8fc\uc694 \ubaa9\uc801)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Current_Transformer_CT\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\uc8fc \uc804\ub958\uac00 \uc218\ucc9c \uc554\ud398\uc5b4\ucc98\ub7fc \ub9e4\uc6b0 \ub192\uc744 \ub54c, \ubcc0\ub958\uae30(CT)\ub294 \uc774\ub97c 1A \ub610\ub294 5A\uc758 \ud45c\uc900 2\ucc28 \ucd9c\ub825\uc73c\ub85c \ub0ae\ucda5\ub2c8\ub2e4. \uc774\ub807\uac8c \uc0dd\uc131\ub41c \uc804\ub958\ub294 \uc804\ub958\uacc4, \uc5d0\ub108\uc9c0 \ubbf8\ud130, \ubcf4\ud638 \uacc4\uc804\uae30 \ub4f1\uc5d0 \uc27d\uac8c \uc5f0\uacb0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcc0\ub958\uae30\uac00 \uc5c6\uc73c\uba74 \uce21\uc815 \uc7a5\ube44\uac00 \uc704\ud5d8\ud55c \uc804\ub958\uc5d0 \uc9c1\uc811 \ub178\ucd9c\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcc0\ub958\uae30\ub294 \ubb3c\uc758 \uc2e4\uc81c \ud750\ub984\uc744 \uc815\ud655\ud558\uac8c \uce21\uc815\ud560 \uc218 \uc788\ub3c4\ub85d \ub3c4\uc640\uc90d\ub2c8\ub2e4.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Potential_Transformer_PT\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>PT(\ubcc0\uc555\uae30)\ub294 11kV, 33kV, 132kV\uc640 \uac19\uc740 \ub192\uc740 \uc2dc\uc2a4\ud15c \uc804\uc555\uc744 \uc548\uc804\ud558\uace0 \uc77c\ubc18\uc801\uc778 \uc800\uc804\uc555\uc778 110V \ub610\ub294 120V\ub85c \ub0ae\ucdb0\uc90d\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc804\uc555\uacc4, \uc8fc\ud30c\uc218\uacc4, \uc804\uc555 \uacc4\uc804\uae30 \ub4f1\uc744 \uc27d\uac8c \uc5f0\uacb0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, \uace0\uc804\uc555 \uc7a5\ube44\ub97c \uc81c\uc5b4 \ud328\ub110\uc5d0\uc11c \uba40\ub9ac \ub5a8\uc5b4\ub728\ub824 \ub193\uc74c\uc73c\ub85c\uc368 \ub2e4\uc591\ud55c \ud14c\uc2a4\ud2b8\ub97c \uc548\uc804\ud558\uac8c \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Working_Principle_Focus\"><\/span><strong>2. \ud575\uc2ec \uc6b4\uc601 \uc6d0\uce59<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Current_Transformer_CT-2\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>CT\ub294 \uc77c\ub828\uc758 \uc7a5\uce58\ucc98\ub7fc \uc791\ub3d9\ud569\ub2c8\ub2e4. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Transformer\"><strong>\ubcc0\uc2e0 \ub85c\ubd07<\/strong><\/a>. 2\ucc28\uce21 \uc804\ub958\uc758 \uc8fc\uc694 \uc5ed\ud560\uc740 \uc2dc\uc2a4\ud15c \uc804\uc555\uc774 \ubcc0\ud558\ub354\ub77c\ub3c4 \uc815\ud655\ud55c \uc804\ub958\ube44\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. 2\ucc28\uce21 \uc804\ub958 \ucd9c\ub825\uc740 \uc8fc \uc804\ub958\uc5d0 \uc758\ud574 \uacb0\uc815\ub429\ub2c8\ub2e4. \uace0\uc7a5\uc774 \ubc1c\uc0dd\ud558\ub354\ub77c\ub3c4 2\ucc28\uce21 \uc804\ub958\uac00 \uc120\ud615\uc131\uc744 \uc720\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub294 \ubcf4\ud638 \uacc4\uc804\uae30\uac00 \ub2e8\ub77d \ubc1c\uc0dd \uc2dc \ud2b8\ub9bd \uc2dc\uc810\uc744 \uacb0\uc815\ud558\uae30 \uc704\ud574 \uc815\ud655\ud55c \uc804\ub958 \uac12\uc744 \uc5bb\uc744 \uc218 \uc788\ub3c4\ub85d \ud574\uc90d\ub2c8\ub2e4.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Potential_Transformer_PT-2\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>PT(\ubcc0\uc555\uae30)\ub294 \uc158\ud2b8 \ubcc0\uc555\uae30\ucc98\ub7fc \uc791\ub3d9\ud569\ub2c8\ub2e4. \uc8fc\uc694 \ubaa9\ud45c\ub294 \uc5f0\uacb0\ub41c \uacc4\uce21\uae30\uc5d0\uc11c \ud750\ub974\ub294 \uc804\ub958\ub7c9\uc5d0 \uad00\uacc4\uc5c6\uc774 \uc804\uc555\ube44\ub97c \uc815\ud655\ud558\uac8c \uc720\uc9c0\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. 2\ucc28 \uc804\uc555\uc740 \uc8fc \uc804\uc555\uc744 \uae30\uc900\uc73c\ub85c \ud569\ub2c8\ub2e4. \ub3d9\uae30\ud654, \uce21\uc815 \ubc0f \uc804\uc555 \uae30\ubc18 \ubcf4\ud638 \uc2dc\uc2a4\ud15c\uc5d0\uc11c PT\ub294 \uc2dc\uc2a4\ud15c \uc804\uc555\uc758 \uc548\uc815\uc801\uc774\uace0 \uc815\ud655\ud55c \uac12\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Connection_in_Circuit\"><\/span><strong>3. \ud68c\ub85c \uc5f0\uacb0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Current_Transformer_CT-3\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>CT(\ubcc0\uc555\uae30)\ub294 \uce21\uc815\ud558\ub824\ub294 \uc804\ub958\uac00 \ud750\ub974\ub294 \uc804\uc120\uacfc \uc9c1\ub82c\ub85c \uc5f0\uacb0\ud574\uc57c \ud569\ub2c8\ub2e4. \uc804\uccb4 \uc120\ub85c \uc804\ub958\ub294 CT\uc758 \uc8fc \uad8c\uc120 \ub610\ub294 \ucc3d\uc744 \ud1b5\ud574 \ud750\ub985\ub2c8\ub2e4. \uc989, \ud68c\ub85c\ub97c \ucc28\ub2e8\ud558\uc9c0 \uc54a\uace0\ub294 CT\ub97c \uc124\uce58\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc62c\ubc14\ub978 \uc124\uce58\ub97c \uc704\ud574\uc11c\ub294 \uc8fc \ub3c4\uccb4\uc758 \uacbd\ub85c\ub97c \ubb3c\ub9ac\uc801\uc73c\ub85c \ucc28\ub2e8\ud558\uace0 CT\uc5d0 \uc811\uadfc\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Potential_Transformer_PT-3\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>PT(\uc804\uc0b0 \ubcc0\ud658\uae30)\ub294 \uc804\ub825\uc120 \uc606\uc774\ub098 \ub9de\uc740\ud3b8\uc5d0 \uc124\uce58\ud569\ub2c8\ub2e4. PT\ub294 \uc8fc \ud68c\ub85c\ub97c \ucc28\ub2e8\ud558\uc9c0 \uc54a\uace0 \ub450 \uc0c1 \uc0ac\uc774 \ub610\ub294 \ud55c \uc0c1\uacfc \uc811\uc9c0 \uc0ac\uc774\uc5d0\uc11c \uc804\uae30\ub97c \ub04c\uc5b4\uc62c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc124\uce58 \ubc29\ubc95\uc740 \uc804\uc555\uacc4\ub97c \uc5f0\uacb0\ud558\ub294 \uac83\uacfc \ub9e4\uc6b0 \uc720\uc0ac\ud569\ub2c8\ub2e4. \uc8fc \uc804\uc6d0\uc758 \ud750\ub984\uc744 \ucc28\ub2e8\ud558\uc9c0 \uc54a\uace0 \uc8fc \ubc84\uc2a4\ubc14\uc5d0\uc11c PT 1\ucc28 \ub2e8\uc790\ub85c \uc804\uc704\uc120\uc744 \uc5f0\uacb0\ud558\uba74 \ub429\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Input_Quantity\"><\/span><strong>4. \uc785\ub825 \uc218\ub7c9<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Current_Transformer_CT-4\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\ubcc0\ub958\uae30(CT)\ub294 \uc77c\uc815\ud55c \uc804\ub958\ub97c \uc785\ub825\ubc1b\uae30 \ub54c\ubb38\uc5d0 \uc815\uc0c1 \ubd80\ud558 \uc804\ub958\ubd80\ud130 \ub192\uc740 \ub2e8\ub77d \uc804\ub958\uae4c\uc9c0 \ub113\uc740 \ub3d9\uc801 \ubc94\uc704\ub97c \uacfc\uc5f4 \uc5c6\uc774 \ucc98\ub9ac\ud560 \uc218 \uc788\uc5b4\uc57c \ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \ubcc0\ub958\uae30 \uc124\uacc4 \uc2dc \uc774\ub7ec\ud55c \uc804\ub958 \ubc94\uc704\ub97c \ubc18\ub4dc\uc2dc \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4. \ub610\ud55c, \uc815\uc0c1 \uc804\ub958\uc758 20\ubc30\uc5d0 \ub2ec\ud558\ub294 \ub2e8\ub77d \uc804\ub958\uac00 \ubc1c\uc0dd\ud558\ub354\ub77c\ub3c4 \ubcc0\ub958\uae30\ub294 \uc804\ub958\uc5d0 \ube44\ub840\ud558\ub294 2\ucc28 \uc2e0\ud638\ub97c \ucd9c\ub825\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Potential_Transformer_PT-4\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>PT(\ubcc0\uc555\uae30)\ub294 \uace0\uc815 \uc804\uc555\uc744 \uc785\ub825\uc73c\ub85c \ubc1b\uc73c\uba70, \uc2dc\uc2a4\ud15c \uc804\uc555\uc758 \u00b110% \uc774\ub0b4\uc758 \uc791\uc740 \ubc94\uc704 \ub0b4\uc5d0\uc11c \uc804\uc555\uc774 \uc548\uc815\uc801\uc77c \ub54c \ucd5c\uc0c1\uc758 \uc131\ub2a5\uc744 \ubc1c\ud718\ud569\ub2c8\ub2e4. PT\ub294 CT(\ubcc0\ud658\uae30)\ucc98\ub7fc \ud56d\uc0c1 \uadf9\ub2e8\uc801\uc778 \uacfc\uc804\uc555 \uc0c1\ud669\uc5d0 \ub300\ucc98\ud560 \ud544\uc694\ub294 \uc5c6\uc9c0\ub9cc, \uc801\uc808\ud55c \uc808\uc5f0 \uc124\uacc4\ub97c \ud1b5\ud574 \ub2e8\uae30\uc801\uc778 \uc11c\uc9c0 \uc804\uc555\uc744 \ucc98\ub9ac\ud560 \uc218 \uc788\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Output_Range\"><\/span><strong>5. \ucd9c\ub825 \ubc94\uc704<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Current_Transformer_CT-5\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\uc804 \uc138\uacc4\uc801\uc73c\ub85c CT(\ubcc0\ud658\uae30)\uc758 2\ucc28\uce21 \uc804\ub958 \uc6a9\ub7c9\uc740 1\uc554\ud398\uc5b4 \ub610\ub294 5\uc554\ud398\uc5b4\ub85c \ud45c\uc900\ud654\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud45c\uc900\ud654 \ub355\ubd84\uc5d0 \uc81c\uc870\uc0ac\uac00 \ub2e4\ub978 \uacc4\ub7c9\uae30\uc640 \ub9b4\ub808\uc774\ub97c \uc7ac\ubcf4\uc815 \uc5c6\uc774 \ud568\uaed8 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c CT\uc640 \uacc4\ub7c9 \ud328\ub110 \uc0ac\uc774\uc758 \uac70\ub9ac\uc5d0 \ub530\ub77c \uc801\ud569\ud55c \uc804\ub958 \uc6a9\ub7c9\uc774 \uacb0\uc815\ub429\ub2c8\ub2e4. \uc9e7\uc740 \uad6c\uac04\uc5d0\ub294 5\uc554\ud398\uc5b4\uac00, \uae34 \uad6c\uac04\uc5d0\ub294 \ucf00\uc774\ube14 \uc190\uc2e4\uc744 \uc904\uc774\uae30 \uc704\ud574 1\uc554\ud398\uc5b4\uac00 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Potential_Transformer_PT-5\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>PT 2\ucc28 \ucd9c\ub825\uc740 \ud574\ub2f9 \uc9c0\uc5ed\uc758 \ud45c\uc900\uc5d0 \ub530\ub77c 110V \ub610\ub294 120V\ub85c \uc124\uc815\ub429\ub2c8\ub2e4. \uc774 \uc548\uc815\uc801\uc778 \ucd9c\ub825 \ub355\ubd84\uc5d0 \uc2dc\uc911\uc5d0\uc11c \ud310\ub9e4\ub418\ub294 \uacc4\uce21 \ubc0f \ubcf4\uc548 \uc7a5\uce58\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. IEC \uae30\ubc18 \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ub294 110V\uac00 \ud45c\uc900\uc774\uace0, ANSI \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ub294 120V\uac00 \ud45c\uc900\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud45c\uc900\uc758 \ud1b5\uc77c\uc131 \ub355\ubd84\uc5d0 \ubaa8\ub4e0 \uc0ac\uc5c5\uc7a5\uc5d0\uc11c \uc7a5\ube44\ub97c \uc27d\uac8c \uad6c\ub9e4\ud558\uace0 \uad50\uccb4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6_Turns_Ratio_Winding_Design\"><\/span><strong>6. \uad8c\uc120\ube44 \ubc0f \uad8c\uc120 \uc124\uacc4<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Current_Transformer_CT-6\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\ubcc0\ub958\uae30(CT)\uc758 \uc8fc \uad8c\uc120\uc740 \uad8c\uc120 \uc218\uac00 \ub9ce\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ubcf4\ud1b5\uc740 \ud558\ub098\uc758 \ubc84\uc2a4\ubc14\ub098 \uc804\uc120\uc774 \ucc3d\uc744 \ud1b5\uacfc\ud558\ub294 \ud615\ud0dc\uc785\ub2c8\ub2e4. \ubc18\uba74 2\ucc28 \uad8c\uc120\uc740 \ud22c\uc790\uc728\uc774 \ub192\uc740 \ucf54\uc5b4\ub97c \uc5ec\ub7ec \ubc88 \uac10\uc544\uc11c \uad6c\uc131\ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub192\uc740 \uad8c\uc120\ube44\ub85c \uc778\ud574 \uc804\ub958 \uac15\ud558 \ud6a8\uacfc\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ubb3c\ub9ac\uc801 \uc124\uacc4\ub294 2\ucc28 \uc804\ub958 \uc2a4\ucf00\uc77c\uc744 \uc815\ud655\ud558\uac8c \uc720\uc9c0\ud558\uba74\uc11c\ub3c4 1\ucc28\uce21 \uc124\uce58\ub97c \ucd5c\ub300\ud55c \uac04\uc18c\ud654\ud558\ub294 \ub370 \uc911\uc810\uc744 \ub461\ub2c8\ub2e4.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Potential_Transformer_PT-6\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\uadc0\ud558\uc758 PT(\ubcc0\uc555\uae30)\uc758 \uc8fc \uad8c\uc120\uc740 \ub192\uc740 \uc2dc\uc2a4\ud15c \uc804\uc555\uc744 \uacac\ub51c \uc218 \uc788\ub294 \uc587\uace0 \uc808\uc5f0\ub41c \uc804\uc120\uc744 \uc5ec\ub7ec \ubc88 \uac10\uc544 \uad6c\uc131\ub429\ub2c8\ub2e4. 2\ucc28 \ucf54\uc77c\uc5d0\ub294 \uc804\uc555\uc744 \ub0ae\ucd94\uae30 \uc704\ud574 \ub354 \uc801\uc740 \uc218\uc758 \uc804\uc120\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774 \uac74\ubb3c\uc5d0\ub294 \uc815\ubc00\ud55c \uc808\uc5f0 \uc124\uacc4\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc8fc \uad8c\uc120\uc740 \uc815\uc0c1 \uc804\uc555\uacfc \ub2e8\uae30\uc801\uc778 \uacfc\uc804\uc555 \uc0c1\ud669 \ubaa8\ub450\uc5d0\uc11c \uc808\uc5f0 \ud30c\uad34 \uc5c6\uc774 \uacac\ub51c \uc218 \uc788\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"7_Transformer_Type\"><\/span><strong>7. \ubcc0\uc555\uae30 \uc720\ud615<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Current_Transformer_CT-7\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\uae30\uc220\uc801\uc778 \uad00\uc810\uc5d0\uc11c \ubcf4\uba74, CT\ub294 \uc2b9\uc555 \ubcc0\uc555\uae30\uc785\ub2c8\ub2e4. 1\ucc28\uce21\uc5d0\uc11c\ub294 \uc800\uc804\uc555\uacfc \uace0\uc804\ub958\ub97c \uc785\ub825\ubc1b\uc544 2\ucc28\uce21\uc5d0\uc11c\ub294 \uace0\uc804\uc555\uacfc \uc800\uc804\ub958\ub97c \ucd9c\ub825\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c 2\ucc28\uce21\uc774 \uac1c\ubc29\ub418\uba74 \uc804\uc555\uc774 \ub9e4\uc6b0 \ub192\uc544\uc838 \uac10\uc804\uc0ac\uace0\ub85c \uc774\uc5b4\uc9c8 \uc218 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc704\ud5d8\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubd84\ub958 \uccb4\uacc4\ub97c \uc774\ud574\ud558\uba74 2\ucc28\uce21 \ub2e8\ub77d \ucc28\ub2e8\uae30\uac00 \uc65c \ud544\uc218\uc801\uc778 \uc548\uc804 \uc7a5\uce58\uc778\uc9c0 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Potential_Transformer_PT-7\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\uac00\uc9c0\uace0 \uacc4\uc2e0 PT\ub294 \uac15\uc555 \ubcc0\uc555\uae30\uc785\ub2c8\ub2e4. 1\ucc28\uce21\uc5d0 \uace0\uc804\uc555 \uc800\uc804\ub958\ub97c \uc785\ub825\ubc1b\uc544 2\ucc28\uce21\uc5d0 \uc800\uc804\uc555 \uace0\uc804\ub958\ub97c \ucd9c\ub825\ud569\ub2c8\ub2e4. \ud45c\uc900 \uac15\uc555 \uc124\uacc4 \ub355\ubd84\uc5d0 \ub3d9\uc791 \ud2b9\uc131\uc744 \uc608\uce21\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 2\ucc28\uce21 \uc5f0\uacb0\ubd80\ub97c \ub2e8\ub77d\uc2dc\ud0a4\uc9c0 \uc54a\ub294 \ud55c \uc77c\ubc18\uc801\uc778 \uc804\uc555\uacc4\uc640 \ub9b4\ub808\uc774\ub97c \uc5f0\uacb0\ud574\ub3c4 \uc548\uc804\ud569\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"8_Secondary_Circuit_Behavior\"><\/span><strong>8. 2\ucc28 \ud68c\ub85c \ub3d9\uc791<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Current_Transformer_CT-8\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\ubcc0\ub958\uae30(CT)\uc758 2\ucc28\uce21\uc740 \ud56d\uc0c1 \ub2e8\ub77d\uc2dc\ud0a4\uac70\ub098 \uc800\uc784\ud53c\ub358\uc2a4 \ubd80\ud558\uc5d0 \uc5f0\uacb0\ud574\uc57c \ud569\ub2c8\ub2e4. 1\ucc28\uce21\uc5d0 \uc804\ub958\uac00 \ud750\ub974\ub294 \uc0c1\ud0dc\uc5d0\uc11c 2\ucc28\uce21\uc744 \uac1c\ubc29\ud558\uba74 \ucf54\uc5b4\uc758 \uc790\uc18d \uc774\ub3d9\uc774 \uba48\ucd94\uc5b4 \uc811\uc810 \uc591\ub2e8\uc5d0 \uc218\ucc9c \ubcfc\ud2b8\uc5d0 \ub2ec\ud558\ub294 \ub9e4\uc6b0 \ub192\uc740 \uc804\uc555\uc774 \ud750\ub974\uac8c \ub429\ub2c8\ub2e4. \uc774\ub294 \uc808\uc5f0\uccb4\ub97c \uc190\uc0c1\uc2dc\ud0a4\uace0 \uc778\uba85 \ud53c\ud574\ub97c \ucd08\ub798\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcc0\ub958\uae30\uc758 2\ucc28\uce21 \uc804\uc120\uc744 \ubd84\ub9ac\ud558\uae30 \uc804\uc5d0\ub294 \ubc18\ub4dc\uc2dc \ub2e8\ub77d \ube14\ub85d\uc744 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Potential_Transformer_PT-8\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>PT(\ubcc0\uc555\uae30) 2\ucc28 \uad8c\uc120\uc744 \uc808\ub300 \ub2e8\ub77d\uc2dc\ud0a4\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. 2\ucc28 \uad8c\uc120\uc5d0 \ub2e8\ub77d\uc774 \ubc1c\uc0dd\ud558\uba74 \uace0\uc7a5 \uc804\ub958\uac00 PT\uc758 \ub0b4\ubd80 \uc784\ud53c\ub358\uc2a4\uc5d0 \uc758\ud574\uc11c\ub9cc \uc81c\ud55c\ub418\ub294 \uc9c1\uc120 \uacbd\ub85c\ub97c \uac16\uac8c \ub429\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \ub9e4\uc6b0 \ub192\uc740 \uc804\ub958\uac00 \ud750\ub974\uac8c \ub418\uace0, \uad8c\uc120\uc774 \uacfc\uc5f4\ub420 \uacbd\uc6b0 \uc808\uc5f0\uccb4\uac00 \ube60\ub974\uac8c \ub179\uc544\ub0b4\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. PT 2\ucc28 \uad8c\uc120\uc744 \ubcf4\ud638\ud558\uae30 \uc704\ud574\uc11c\ub294 \ud56d\uc0c1 \uc801\uc808\ud55c \uc815\uaca9\uc758 \ud4e8\uc988 \ub610\ub294 \ud68c\ub85c \ucc28\ub2e8\uae30\ub97c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"9_Dependency_on_Load_Burden\"><\/span><strong>9. \ubd80\ud558(\ubd80\ub2f4)\uc5d0 \ub300\ud55c \uc758\uc874\uc131<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Current_Transformer_CT-9\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\uc815\uaca9 VA \uc6a9\ub7c9 \ubc94\uc704 \ub0b4\uc5d0 \uc788\ub294 \ud55c, 2\ucc28 \ubd80\ud558\ub294 CT\uc758 \uc815\ud655\ub3c4\uc5d0 \ud070 \uc601\ud5a5\uc744 \ubbf8\uce58\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc7a5\uce58\ub97c \ub108\ubb34 \ub9ce\uc774 \ucd94\uac00\ud558\uba74 CT \ucf54\uc5b4\uc5d0 \uacfc\ubd80\ud558\uac00 \uac78\ub824 \ubcc0\uc18d\ube44 \uacc4\uc0b0\uc5d0 \uc624\ub958\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uace0\uc7a5 \ubc1c\uc0dd \uc2dc \uc548\uc804 \uacc4\uc804\uae30\uac00 \uc804\ud600 \uc791\ub3d9\ud558\uc9c0 \uc54a\uac70\ub098 \uc798\ubabb \uc791\ub3d9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c CT \ud68c\ub85c\ub97c \uc124\uacc4\ud558\uae30 \uc804\uc5d0 \ud56d\uc0c1 \uc804\uccb4 \ubd80\ud558\ub97c \uacc4\uc0b0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Potential_Transformer_PT-9\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\ubcf4\uc870 \ubd80\ud558\ub294 \uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58(PT)\uc758 \uc815\ud655\ub3c4\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uc5b4\ub5a4 \uc774\uc720\uc5d0\uc11c\uc778\uc9c0, \uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58\uc5d0 \uc5f0\uacb0\ub418\ub294 \uacc4\uce21\uae30\ub098 \uc2a4\uc704\uce58\uac00 \ub9ce\uc544\uc9c8\uc218\ub85d \uc804\uc555 \ucd9c\ub825\uc774 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \ube44\uc728 \uc624\ucc28\uac00 \ubc1c\uc0dd\ud558\uc5ec \uacc4\uce21\uae30\uc758 \uc815\ud655\ub3c4\uc640 \uc548\uc804 \uc124\uc815\uac12\uc774 \ubcc0\uacbd\ub429\ub2c8\ub2e4. \uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58\uac00 \ud5c8\uc6a9\ub41c \uc815\ud655\ub3c4 \ubc94\uc704 \ub0b4\uc5d0\uc11c \uc791\ub3d9\ud558\ub3c4\ub85d \ud558\ub824\uba74 \uc5f0\uacb0\ub41c \ubd80\ud558\ub97c \uc2e0\uc911\ud558\uac8c \uc81c\uc5b4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"10_Applications_in_Power_Systems\"><\/span><strong>10. \uc804\ub825 \uc2dc\uc2a4\ud15c\uc5d0\uc11c\uc758 \uc751\uc6a9<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Current_Transformer_CT-10\"><\/span><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\uc608\ub97c \ub4e4\uc5b4, \uc804\ub958\uacc4, \uc804\ub825 \ubd84\uc11d\uae30, \uc5d0\ub108\uc9c0 \ubbf8\ud130, \uacfc\uc804\ub958 \uacc4\uc804\uae30, \ucc28\ub3d9 \uc548\uc804 \uc7a5\uce58 \ubc0f \uc5f4 \ubc0f <a href=\"https:\/\/www.kdmsteel.com\/ko\/\uc804\uae30-\uacfc\ubd80\ud558\ub780-\ubb34\uc5c7\uc778\uac00\/\"><strong>\uacfc\ubd80\ud558<\/strong><\/a> \uc774\ub7ec\ud55c \uc7a5\uce58\ub4e4\uc740 \ubaa8\ub450 \uc804\ub958 \uae30\ubc18 \uc7a5\uce58\uc774\uba70, CT \uc2a4\uce94\ub9cc \uc0ac\uc6a9\ud558\uc5ec \uac80\uc0ac\ud569\ub2c8\ub2e4. <a href=\"https:\/\/www.kdmsteel.com\/ko\/\uc800\uc804\uc555-\uc2a4\uc704\uce58\uae30\uc5b4\/\"><strong>\uc800\uc804\uc555 \uac1c\ud3d0 \uc7a5\uce58<\/strong><\/a>, CT\ub294 \uc804\ub825\uc744 \uacf5\uae09\ud558\uace0 \uc1a1\ucd9c\ud558\ub294 \uac01 \ud68c\uc120\uc758 \uac01 \ub2e8\uacc4\uc5d0 \uc5f0\uacb0\ub429\ub2c8\ub2e4. \uc774\ub294 \ub9c8\ucf00\ud305 \ub124\ud2b8\uc6cc\ud06c\ub97c \ubcf4\ud638\ud558\uace0 \uc218\uc775\uc744 \uce21\uc815\ud558\ub294 \ub370 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Potential_Transformer_PT-10\"><\/span><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>PT(\uc804\uc1a1 \ubcc0\uc555\uae30)\ub294 \uc804\uc555\uacc4, \uc8fc\ud30c\uc218\uacc4, \ub3d9\uae30\uacc4, \uc804\uc555 \uacc4\uc804\uae30 \ubc0f \uc804\uc555 \uac15\ud558 \uc2dc \uc548\uc804 \uc7a5\uce58\uc640 \uac19\uc740 \uc804\uc555 \uae30\ubc18 \uc791\uc5c5\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. PT\ub294 \ubcc0\uc804\uc18c\uc5d0\uc11c \ubcd1\ub82c\ub85c \uc5f0\uacb0\ub41c \ubc1c\uc804\uae30 \ub610\ub294 \uc1a1\uc804\uc120\ub85c\uc5d0 \ub3d9\uae30 \uc2e0\ud638\ub97c \ubcf4\ub0c5\ub2c8\ub2e4. \uc804\ub825(kW)\uc744 \uce21\uc815\ud558\uace0 \ubc29\ud5a5\uc131 \ubcf4\ud638 \uc2dc\uc2a4\ud15c\uc744 \uc124\uc815\ud558\ub824\uba74 \ub3d9\uc77c\ud55c \uacc4\uce21\uae30\uc5d0 CT(\ubcc0\ud658\uae30) \ubc0f PT \uc785\ub825\uc774 \ubaa8\ub450 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Summary_Table_CT_vs_PT_at_a_Glance\"><\/span><strong>\uc694\uc57d\ud45c: CT\uc640 PT \ube44\uad50<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50440\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Summary-Table-CT-vs-PT-at-a-Glance.jpg\" alt=\"CT\uc640 PT \ube44\uad50 \uc694\uc57d\ud45c\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Summary-Table-CT-vs-PT-at-a-Glance.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Summary-Table-CT-vs-PT-at-a-Glance-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Summary-Table-CT-vs-PT-at-a-Glance-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Summary-Table-CT-vs-PT-at-a-Glance-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<table width=\"648\">\n<tbody>\n<tr>\n<td><strong>\ud2b9\uc9d5<\/strong><\/td>\n<td><strong>\uc804\ub958\ubcc0\uc555\uae30(CT)<\/strong><\/td>\n<td><strong>\uc804\uc555\ubcc0\uc555\uae30(PT)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>\uc8fc\uc694 \uae30\ub2a5<\/strong><\/td>\n<td>\uace0\uc804\ub958\ub97c 1A\/5A\ub85c \ub0ae\ucda5\ub2c8\ub2e4.<\/td>\n<td>\uace0\uc804\uc555\uc744 110V\/120V\ub85c \ub0ae\ucda5\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td><strong>\uc5f0\uacb0<\/strong><\/td>\n<td>\ub77c\uc778\uc774 \uc788\ub294 \uc2dc\ub9ac\uc988<\/td>\n<td>\uc120\uacfc \ud3c9\ud589\ud55c (\uac00\ub85c\uc9c8\ub7ec\uc9c4)<\/td>\n<\/tr>\n<tr>\n<td><strong>\uc8fc\uc694 \ud134<\/strong><\/td>\n<td>\uc18c\uc218 (\uc790\uc8fc) <a href=\"https:\/\/www.kdmsteel.com\/ko\/\ub2e8\uc0c1-\ubcc0\uc555\uae30\/\"><strong>\ub2e8\uc0c1 \ubcc0\uc555\uae30<\/strong><\/a>)<\/td>\n<td>\ub9ce\uc740<\/td>\n<\/tr>\n<tr>\n<td><strong>\ubcf4\uc870 \ud68c\uc804<\/strong><\/td>\n<td>\ub9ce\uc740<\/td>\n<td>\uc57d\uac04\uc758<\/td>\n<\/tr>\n<tr>\n<td><strong>2\ucc28 \uc704\ud5d8<\/strong><\/td>\n<td>\uac1c\ubc29 \ud68c\ub85c(\uace0\uc804\uc555 \ubc1c\uc0dd)<\/td>\n<td>\ub2e8\ub77d(\ub192\uc740 \uc804\ub958\ub97c \ubc1c\uc0dd\uc2dc\ud0b4)<\/td>\n<\/tr>\n<tr>\n<td><strong>\ubd80\ub2f4 \uc758\uc874\uc131<\/strong><\/td>\n<td>\ub0ae\uc74c(\uc815\uc804\ub958\uc6d0)<\/td>\n<td>\ub192\uc74c (\ubd80\ud558\uac00 \ub192\uc744\uc218\ub85d \uc815\ud655\ub3c4\uac00 \ub5a8\uc5b4\uc9d0)<\/td>\n<\/tr>\n<tr>\n<td><strong>\ubcc0\uc555\uae30 \uc720\ud615<\/strong><\/td>\n<td>\uc2b9\uc555 \ubcc0\uc555\uae30<\/td>\n<td>\uac15\uc555 \ubcc0\uc555\uae30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Current_Transformer_vs_Potential_Transformer_%E2%80%93_Which_One_Is_Best\"><\/span><strong>\uc804\ub958 \ubcc0\uc555\uae30 vs. \uc804\uc555 \ubcc0\uc555\uae30 \u2013 \uc5b4\ub290 \uac83\uc774 \ub354 \uc88b\uc744\uae4c\uc694?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50441\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Current-Transformer-vs-Potential-Transformer-\u2013-Which-One-Is-Best.jpg\" alt=\"\uc804\ub958\ubcc0\uc555\uae30\uc640 \uc804\uc555\ubcc0\uc555\uae30 \uc911 \uc5b4\ub290 \uac83\uc774 \ub354 \uc88b\uc744\uae4c\uc694?\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Current-Transformer-vs-Potential-Transformer-\u2013-Which-One-Is-Best.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Current-Transformer-vs-Potential-Transformer-\u2013-Which-One-Is-Best-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Current-Transformer-vs-Potential-Transformer-\u2013-Which-One-Is-Best-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Current-Transformer-vs-Potential-Transformer-\u2013-Which-One-Is-Best-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>\uc5b4\ub290 \ucabd\uc774 &quot;\ucd5c\uace0&quot;\ub77c\uace0 \ud560 \uc218\ub294 \uc5c6\uc2b5\ub2c8\ub2e4. \uac01\uac01 \uace0\uc720\ud55c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \uc218\ud589\ud569\ub2c8\ub2e4. CT\uc5d0\uc11c PT\ub85c, \ub610\ub294 \uadf8 \ubc18\ub300\ub85c \ubc14\uafc0 \uc218\ub294 \uc5c6\uc2b5\ub2c8\ub2e4. \uc120\ud0dd\uc740 \uc804\uc801\uc73c\ub85c \uc0ac\uc6a9\uc790\uc758 \ud544\uc694\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc548\uc804 \uacc4\uc804\uae30\ub098 \uacc4\uce21\uae30\uc5d0 \ud544\uc694\ud55c \uc804\ub958\ub97c \uce21\uc815\ud558\ub824\uba74 CT\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \ub3d9\uae30\ud654\ub098 \uc804\uc555\uacc4\uc5d0 \ud544\uc694\ud55c \uc804\uc555\uc744 \uce21\uc815\ud558\ub824\uba74 PT\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \ud0ac\ub85c\uc640\ud2b8 \ub2e8\uc704\uc758 \uc804\ub825 \uacc4\uc0b0\uacfc \uac19\uc740 \uc815\ubc00\ud55c \uc804\ub825 \ucd94\uc801 \uc791\uc5c5\uc5d0\ub294 \ub450 \uc7a5\uce58\uac00 \ub3d9\uc2dc\uc5d0 \uc791\ub3d9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Get_Your_Customized_Transformer_by_KDM_Steel\"><\/span><strong>KDM Steel\uc5d0\uc11c \ub9de\ucda4\ud615 \ubcc0\uc555\uae30\ub97c \uc8fc\ubb38\ud558\uc138\uc694<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50442\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Get-Your-Customized-Transformer-by-KDM-Steel.jpg\" alt=\"KDM Steel\uc5d0\uc11c \ub9de\ucda4\ud615 \ubcc0\uc555\uae30\ub97c \uc8fc\ubb38\ud558\uc138\uc694\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Get-Your-Customized-Transformer-by-KDM-Steel.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Get-Your-Customized-Transformer-by-KDM-Steel-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Get-Your-Customized-Transformer-by-KDM-Steel-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Get-Your-Customized-Transformer-by-KDM-Steel-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>\uc6b0\ub9ac\ub294 \uac01 \uc804\ub825 \uc2dc\uc2a4\ud15c\ub9c8\ub2e4 \uace0\uc720\ud55c \uc694\uad6c \uc0ac\ud56d\uc774 \uc788\ub2e4\ub294 \uac83\uc744 \uc54c\uace0 \uc788\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/www.kdmsteel.com\/ko\/\">KDM\uc2a4\ud2f8<\/a>. \uc800\ud76c\ub294 \uace0\uac1d\uc758 \uc694\uad6c\uc5d0 \ub9de\ucd98 \ub9de\ucda4\ud615 \uc194\ub8e8\uc158\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc548\uc804\uc744 \uc704\ud55c \uc815\ubc00 \uc804\ub958 \ubcc0\uc555\uae30\ubd80\ud130 \uce21\uc815\uc744 \uc704\ud55c \uc815\ud655\ud55c \uc804\uc555 \ubcc0\uc555\uae30\uae4c\uc9c0, \uace0\uac1d\uc758 \ub2e4\uc591\ud55c \uc694\uad6c\uc5d0 \ubd80\uc751\ud558\ub294 \uc194\ub8e8\uc158\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc800\ud76c\uc758 \uc804\ubb38 \uc9c0\uc2dd\uacfc \uacbd\ud5d8\uc744 \ubc14\ud0d5\uc73c\ub85c \uc2e0\ub8b0\uc131, \uc548\uc804\uc131, \ud6a8\uc728\uc131\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4. <a href=\"https:\/\/www.kdmsteel.com\/ko\/\uc5f0\ub77d\ud558\ub2e4\/\"><strong>\ubb38\uc758\ud558\uae30<\/strong><\/a> \uc9c0\uae08 \ubc14\ub85c \uadc0\uc0ac\uc758 \uacc4\uae30\uc6a9 \ubcc0\uc555\uae30 \ud544\uc694\uc131\uc5d0 \ub300\ud574 \uc774\uc57c\uae30\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQS\"><\/span><strong>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Why_shouldnt_CT_Extra_be_open\"><\/span><strong>CT Extra\uac00 \ubb38\uc744 \uc5f4\uba74 \uc548 \ub418\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc778\uac00\uc694?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>CT\uc758 1\ucc28\uce21\uc774 \uc5f0\uacb0\ub41c \uc0c1\ud0dc\uc5d0\uc11c 2\ucc28\uce21\uc744 \uac1c\ubc29\ud558\uba74 \ucf54\uc5b4\uac00 \ud3ec\ud654\ub418\uc5b4 \uc704\ud5d8\ud55c \uace0\uc804\uc555 \uc2a4\ud30c\uc774\ud06c\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774\ub294 \uac10\uc804\uc744 \uc77c\uc73c\ud0a4\uace0 \uc808\uc5f0\uccb4\ub97c \uc989\uc2dc \ud30c\uad34\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \ub9e4\uc6b0 \uc704\ud5d8\ud569\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_CT_and_PT_be_used_instead_of_each_other\"><\/span><strong>CT\uc640 PT\ub97c \uc11c\ub85c \ub300\uccb4\ud574\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub098\uc694?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\uc544\ub2c8\uc694, \ub458\uc740 \uc11c\ub85c \ubc18\ub300\ub418\ub294 \uc791\uc6a9\uc744 \ud569\ub2c8\ub2e4. \ud558\ub098\ub294 \uc804\uc555\uc744 \ub0ae\ucd94\uace0, \ub2e4\ub978 \ud558\ub098\ub294 \uc804\ub958\ub97c \ub0ae\ucda5\ub2c8\ub2e4. \uc548\uc804 \uc694\uad6c \uc0ac\ud56d, \uc81c\uc791 \ubc29\uc2dd, \uc5f0\uacb0 \ubc29\uc2dd \ub4f1\uc774 \uae30\ubcf8\uc801\uc73c\ub85c \ud638\ud658\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"When_do_CT_and_PT_work_together\"><\/span><strong>CT\uc640 PT\ub294 \uc5b8\uc81c \ud568\uaed8 \uc791\uc5c5\ud558\ub098\uc694?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\uc804\ub825\uacfc \uc804\uc555\uc774 \ubaa8\ub450 \ud544\uc694\ud55c \uc0c1\ud669\uc5d0\uc11c \ud568\uaed8 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc804\ub825\uacc4, \ubc29\ud5a5\uc131 \uacfc\uc804\ub958 \uacc4\uc804\uae30, \uc804\ub825 \ud68c\uc0ac \uc5d0\ub108\uc9c0 \uacc4\ub7c9 \ud654\uba74 \ub4f1\uc774 \uadf8 \uc608\uc785\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Which_transformer_is_better_for_you\"><\/span><strong>\uc5b4\ub5a4 \ubcc0\uc555\uae30\uac00 \ub2f9\uc2e0\uc5d0\uac8c \ub354 \uc801\ud569\ud560\uae4c\uc694?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\ub450 \ubc29\ubc95 \ubaa8\ub450 \uc62c\ubc14\ub974\uac8c \uc0ac\uc6a9\ud558\uba74 \uc548\uc804\ud558\uc9c0\ub9cc, \uac01\uac01 \uace0\uc720\ud55c \uc704\ud5d8\uc774 \uc788\uc2b5\ub2c8\ub2e4. CT\ub294 \uac1c\ubc29\ud615\uc77c \ub54c \uc704\ud5d8\ud558\uace0, PT\ub294 \uae38\uc774\uac00 \uc9e7\uc744 \ub54c \uc704\ud5d8\ud569\ub2c8\ub2e4.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Why_are_transformers_for_instruments_important\"><\/span><strong>\uacc4\uce21\uae30\uc6a9 \ubcc0\uc555\uae30\uac00 \uc911\uc694\ud55c \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\ud45c\uc900 \uc800\uc804\uc555 \uacc4\uce21\uae30\ub294 \uace0\uc804\uc555 \uc2dc\uc2a4\ud15c\uc744 \uc548\uc804\ud558\uac8c \uce21\uc815\ud558\uace0 \ubcf4\ud638\ud558\ub294 \ub370 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uacc4\uce21\uae30\ub294 \uc704\ud5d8\ud55c 1\ucc28 \ud68c\ub85c\ub97c \uc81c\uc5b4 \uc7a5\ube44\uc5d0\uc11c \ubd84\ub9ac\ud558\uc5ec \uc81c\uc5b4 \uc7a5\ube44\ub97c \uc548\uc804\ud558\uac8c \ubcf4\ud638\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>When you&#8217;re generating switchgear or taking care of a power substation, you know that accuracy and safety are very important. 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