{"id":212794,"date":"2024-11-05T10:09:24","date_gmt":"2024-11-05T10:09:24","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/?p=212794"},"modified":"2024-11-05T10:09:24","modified_gmt":"2024-11-05T10:09:24","slug":"%ea%b5%90%eb%a5%98-%ed%9a%8c%eb%a1%9c%ec%97%90%ec%84%9c-%ec%97%ad%eb%a5%a0%ec%9d%84-%ea%b3%84%ec%82%b0%ed%95%98%eb%8a%94-%eb%b0%a9%eb%b2%95","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ea%b5%90%eb%a5%98-%ed%9a%8c%eb%a1%9c%ec%97%90%ec%84%9c-%ec%97%ad%eb%a5%a0%ec%9d%84-%ea%b3%84%ec%82%b0%ed%95%98%eb%8a%94-%eb%b0%a9%eb%b2%95\/","title":{"rendered":"\uad50\ub958 \ud68c\ub85c\uc5d0\uc11c \uc5ed\ub960\uc744 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95"},"content":{"rendered":"

\uad50\ub958 \ud68c\ub85c\uc5d0\uc11c \uc5ed\ub960\uc744 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95: \uc5ed\ub960\uc758 \uc815\uc758\uc640 \uc911\uc694\uc131\uc744 \uc774\ud574\ud558\uace0, \uc784\ud53c\ub358\uc2a4 \ubc0f \uc804\uc555-\uc804\ub958 \uad00\uacc4\ub97c \ud1b5\ud574 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95\uc744 \uc54c\uc544\ubcf4\uc138\uc694.<\/p>\n

\uad50\ub958 \ud68c\ub85c\uc5d0\uc11c \uc5ed\ub960\uc744 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95<\/h2>\n

\uad50\ub958(AC) \ud68c\ub85c\uc5d0\uc11c \uc5ed\ub960(power factor)\uc740 \ub9e4\uc6b0 \uc911\uc694\ud55c \uac1c\ub150\uc785\ub2c8\ub2e4. \uc5ed\ub960\uc740 \uc804\ub825 \uc2dc\uc2a4\ud15c\uc758 \ud6a8\uc728\uc131\uc744 \ub098\ud0c0\ub0b4\ub294 \uc9c0\ud45c\ub85c, 0\uacfc 1 \uc0ac\uc774\uc758 \uac12\uc744 \uac00\uc9d1\ub2c8\ub2e4. \uc88b\uc740 \uc5ed\ub960\uc740 \uc804\ub825 \uc2dc\uc2a4\ud15c\uc774 \ud6a8\uc728\uc801\uc73c\ub85c \uc791\ub3d9\ud558\uace0 \uc788\uc74c\uc744 \uc758\ubbf8\ud558\uba70, \uc5ed\ub960\uc774 \ub0ae\uc744 \uacbd\uc6b0 \uc5d0\ub108\uc9c0\uac00 \ube44\ud6a8\uc728\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\uace0 \uc788\ub2e4\ub294 \uc2e0\ud638\uc785\ub2c8\ub2e4. \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 \uad50\ub958 \ud68c\ub85c\uc5d0\uc11c \uc5ed\ub960\uc744 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc5ed\ub960\uc758 \uc815\uc758<\/h2>\n

\uc5ed\ub960\uc740 \uc720\ud6a8\uc804\ub825(real power, P)\uacfc \ud53c\uc0c1\uc804\ub825(apparent power, S)\uc758 \ube44\uc728\ub85c \uc815\uc758\ub418\uba70, \ub2e4\uc74c\uacfc \uac19\uc740 \uc2dd\uc73c\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

\uc5ed\ub960 (PF) = \\(\\frac{P}{S}\\)<\/i><\/p>\n

\uc5ec\uae30\uc11c, \uc720\ud6a8\uc804\ub825 P\ub294 \ub2e8\uc704\uac00 \uc640\ud2b8(W)\ub85c \uc8fc\uc5b4\uc9c0\uba70 \uc2e4\uc81c\ub85c \uc720\uc6a9\ud558\uac8c \uc4f0\uc774\ub294 \uc804\ub825\uc744 \uc758\ubbf8\ud558\uace0, \ud53c\uc0c1\uc804\ub825 S\ub294 \ub2e8\uc704\uac00 \ubcfc\ud2b8\uc554\ud398\uc5b4(VA)\ub85c \uc8fc\uc5b4\uc9c0\ub294 \uc804\uccb4 \uc804\ub825\uc785\ub2c8\ub2e4.<\/p>\n

\ud53c\uc0c1\uc804\ub825, \uc720\ud6a8\uc804\ub825, \ubb34\ud6a8\uc804\ub825<\/h2>\n

\uad50\ub958 \ud68c\ub85c\uc5d0\uc11c\ub294 \uc804\ub825\uc744 \ub2e4\uc74c \uc138 \uac00\uc9c0 \uc694\uc18c\ub85c \ub098\ub20c \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

    \n
  1. \uc720\ud6a8\uc804\ub825 (P): \uc2e4\uc81c \uc77c\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc804\ub825, \ub2e8\uc704\ub294 \uc640\ud2b8 (W).<\/li>\n
  2. \ubb34\ud6a8\uc804\ub825 (Q): \uc790\uacc4 \ubc0f \uc804\uacc4 \ud615\uc131\uc5d0 \uad00\uc5ec\ud558\ub294 \uc804\ub825, \ub2e8\uc704\ub294 \ubcfc\ud2b8\uc554\ud398\uc5b4 \ub9ac\uc561\ud2f0\ube0c (VAR).<\/li>\n
  3. \ud53c\uc0c1\uc804\ub825 (S): \ud68c\ub85c\uac00 \uc18c\ube44\ud558\ub294 \uc804\uccb4 \uc804\ub825, \ub2e8\uc704\ub294 \ubcfc\ud2b8\uc554\ud398\uc5b4 (VA)\ub85c, \uc720\ud6a8\uc804\ub825\uacfc \ubb34\ud6a8\uc804\ub825\uc758 \ubca1\ud130 \ud569\uc785\ub2c8\ub2e4.<\/li>\n<\/ol>\n

    \ud53c\uc0c1\uc804\ub825 \\(S\\)\ub294 \uc720\ud6a8\uc804\ub825 \\(P\\)\uc640 \ubb34\ud6a8\uc804\ub825 \\(Q\\)\uc758 \ub2e4\uc74c\uacfc \uac19\uc740 \ud53c\ud0c0\uace0\ub77c\uc2a4 \uad00\uacc4\ub85c \ud45c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

    \\(S = \\sqrt{P^2 + Q^2}\\)<\/i><\/p>\n

    \uc5ed\ub960 \uacc4\uc0b0 \uc608\uc2dc<\/h2>\n

    \uc608\ub97c \ub4e4\uc5b4, \ud55c \uad50\ub958 \ud68c\ub85c\uc5d0\uc11c \uc720\ud6a8\uc804\ub825 \\(P\\)\uac00 300W\uc774\uace0 \ubb34\ud6a8\uc804\ub825 \\(Q\\)\uac00 400VAR\uc77c \uacbd\uc6b0\ub97c \uc0dd\uac01\ud574\ubd05\uc2dc\ub2e4. \ud53c\uc0c1\uc804\ub825 \\(S\\)\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

    \\(S = \\sqrt{300^2 + 400^2} = \\sqrt{90000 + 160000} = \\sqrt{250000} = 500VA\\)<\/i><\/p>\n

    \ub530\ub77c\uc11c \uc774 \ud68c\ub85c\uc758 \uc5ed\ub960\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ub429\ub2c8\ub2e4:<\/p>\n

    \uc5ed\ub960 (PF) = \\(\\frac{P}{S} = \\frac{300W}{500VA} = 0.6\\)<\/i><\/p>\n

    \uc5ed\ub960 \uac1c\uc120 \ubc29\ubc95<\/h2>\n

    \uc5ed\ub960\uc744 \uac1c\uc120\ud558\ub294 \ubc29\ubc95\uc740 \uc5ec\ub7ec \uac00\uc9c0\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uacf5\uc7a5\uc5d0\uc11c \uc8fc\ub85c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc740 \ubcf4\uc0c1\uc6a9 \ucee4\ud328\uc2dc\ud130\ub97c \uc124\uce58\ud558\ub294 \uac83\uc778\ub370, \uc774\ub294 \ubb34\ud6a8\uc804\ub825\uc744 \uac10\uc18c\uc2dc\ucf1c \uc5ed\ub960\uc744 \ub192\uc774\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uba87 \uac00\uc9c0 \uc77c\ubc18\uc801\uc778 \uc5ed\ub960 \uac1c\uc120 \ubc29\ubc95\uc785\ub2c8\ub2e4:<\/p>\n

      \n
    • \uace0\ud6a8\uc728 \ubaa8\ud130 \uc0ac\uc6a9<\/li>\n
    • \ubcf4\uc0c1\uc6a9 \ucee4\ud328\uc2dc\ud130 \uc124\uce58<\/li>\n
    • \uc5ed\ub960 \ubcf4\uc0c1 \uc7a5\uce58 \uc0ac\uc6a9<\/li>\n<\/ul>\n

      \ud68c\ub85c\uc758 \ud6a8\uc728\uc131\uc744 \ub192\uc774\uae30 \uc704\ud574\uc11c\ub294 \uc815\uae30\uc801\uc778 \uc5ed\ub960 \uac80\uc0ac\uac00 \ud544\uc694\ud558\uba70, \ub0ae\uc740 \uc5ed\ub960 \uc0c1\ud669\uc5d0\uc11c\ub294 \uc801\uc808\ud55c \uac1c\uc120 \uc870\uce58\ub97c \ucde8\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n

      \uacb0\ub860<\/h2>\n

      \uad50\ub958 \ud68c\ub85c\uc5d0\uc11c \uc5ed\ub960\uc740 \uc2dc\uc2a4\ud15c\uc758 \ud6a8\uc728\uc131\uc744 \ub098\ud0c0\ub0b4\ub294 \uc911\uc694\ud55c \ud30c\ub77c\ubbf8\ud130\uc785\ub2c8\ub2e4. \uc720\ud6a8\uc804\ub825\uacfc \ud53c\uc0c1\uc804\ub825\uc758 \ube44\uc728\ub85c \uc815\uc758\ub418\uba70, \uc720\ud6a8\uc804\ub825\uacfc \ubb34\ud6a8\uc804\ub825\uc758 \uad00\uacc4\ub97c \ud1b5\ud574 \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub0ae\uc740 \uc5ed\ub960\uc740 \uc2dc\uc2a4\ud15c\uc758 \ube44\ud6a8\uc728\uc131\uc744 \uc758\ubbf8\ud558\ubbc0\ub85c, \ub2e4\uc591\ud55c \ubc29\ubc95\uc744 \ud1b5\ud574 \uc5ed\ub960\uc744 \uac1c\uc120\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc5d0\ub108\uc9c0\ub97c \uc808\uc57d\ud558\uace0 \ube44\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

      \uad50\ub958 \ud68c\ub85c\uc5d0\uc11c \uc5ed\ub960\uc744 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95: \uc5ed\ub960\uc758 \uc815\uc758\uc640 \uc911\uc694\uc131\uc744 \uc774\ud574\ud558\uace0, \uc784\ud53c\ub358\uc2a4 \ubc0f \uc804\uc555-\uc804\ub958 \uad00\uacc4\ub97c \ud1b5\ud574 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95\uc744 \uc54c\uc544\ubcf4\uc138\uc694.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[101],"tags":[],"class_list":["post-212794","post","type-post","status-publish","format-standard","hentry","category-101","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"\n\uad50\ub958 \ud68c\ub85c\uc5d0\uc11c \uc5ed\ub960\uc744 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95<\/title>\n<meta name=\"description\" content=\"\uad50\ub958 \ud68c\ub85c\uc5d0\uc11c \uc5ed\ub960\uc744 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