{"id":4837,"date":"2026-10-27T09:52:50","date_gmt":"2026-10-27T01:52:50","guid":{"rendered":"https:\/\/cnkuangya.com\/?p=4837"},"modified":"2026-10-27T09:52:55","modified_gmt":"2026-10-27T01:52:55","slug":"vfd-surge-protection-input-vs-output","status":"publish","type":"post","link":"https:\/\/cnkuangya.com\/ko\/blog\/vfd-surge-protection-input-vs-output\/","title":{"rendered":"VFD \uc11c\uc9c0 \ubcf4\ud638: \uc785\ub825 \uce21 vs \ubaa8\ud130 \ucd9c\ub825 \uce21"},"content":{"rendered":"

\ube60\ub978 \ub2f5\ubcc0: \uacf5\uae09 \uce21\uba74\uc744 \ubcf4\ud638\ud558\uc2ed\uc2dc\uc624<\/h2>\n

\uc77c\ubc18\uc801\uc778 \uac00\ubcc0 \uc8fc\ud30c\uc218 \ub4dc\ub77c\uc774\ube0c(VFD)\uc758 \uacbd\uc6b0, \uc785\ub825 AC \uc804\uc6d0 \ubc0f \ub4dc\ub77c\uc774\ube0c\uc5d0 \uc804\ub825\uc744 \uacf5\uae09\ud558\ub294 \ubc30\uc804 \uc2dc\uc2a4\ud15c\uc758 \uc11c\uc9c0 \ubcf4\ud638 \uae30\ub2a5\uc744 \ud3c9\uac00\ud558\uc2ed\uc2dc\uc624. \ud45c\uc900 AC \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58(SPD)\ub97c VFD \ucd9c\ub825 \ub2e8\uc790\uc640 \ubaa8\ud130 \uc0ac\uc774\uc5d0 \uc124\uce58\ud560 \uc218 \uc788\ub2e4\uace0 \uac00\uc815\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \ud574\ub2f9 \ucd9c\ub825\uc740 \uc77c\ubc18\uc801\uc778 50\/60Hz \uc804\uc6d0\uc774 \uc544\ub2cc \ud384\uc2a4 \ud3ed \ubcc0\uc870(PWM) \ud30c\ud615\uc785\ub2c8\ub2e4. \uc288\ub098\uc774\ub354 \uc77c\ub809\ud2b8\ub9ad\uc740 VFD\uc758 \ubd80\ud558 \uce21\uc5d0 \uc77c\ubc18\uc801\uc778 \uc11c\uc9c0 \uc5b5\uc81c\uae30\ub97c \uc124\uce58\ud558\uc9c0 \ub9d0 \uac83\uc744 \uad8c\uc7a5\ud569\ub2c8\ub2e4.<\/a> PWM \ucd9c\ub825\uc73c\ub85c \uc778\ud574 \uad6c\uc131 \uc694\uc18c\uac00 \uc190\uc0c1\ub420 \uc218 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n

\uc62c\ubc14\ub978 \uad6c\uc131\uc740 \ub4dc\ub77c\uc774\ube0c \ub9e4\ub274\uc5bc, \uc811\uc9c0 \uc2dc\uc2a4\ud15c, \ub099\ub8b0 \ub178\ucd9c \uc815\ub3c4, \uc0c1\uc704 \ubcf4\ud638 \uc7a5\uce58 \ubc0f \ubaa8\ud130 \ucf00\uc774\ube14 \uc124\uacc4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc790\uaca9\uc744 \uac16\ucd98 \uc804\uae30 \uc124\uacc4\uc790\uac00 \ub2e8\uc21c\ud788 kA \uc815\uaca9\ub9cc\uc73c\ub85c SPD\ub97c \uc120\ud0dd\ud558\ub294 \uac83\uc774 \uc544\ub2c8\ub77c \uc804\uccb4 \uc124\uce58 \uc0c1\ud0dc\ub97c \uac80\uc99d\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\uc785\ub825, \ucd9c\ub825 \ubc0f \uc81c\uc5b4 \ud68c\ub85c\ub294 \uc11c\ub85c \ub2e4\ub985\ub2c8\ub2e4.<\/h2>\n
\ud68c\ub85c<\/th>\uc810\uac80 \uc0ac\ud56d<\/th>\ud754\ud55c \uc2e4\uc218<\/th><\/tr><\/thead>
VFD\ub85c\uc758 AC \uc804\uc6d0 \uacf5\uae09<\/td>\uacf5\uae09 \uc804\uc6d0 \ubc0f \ub4dc\ub77c\uc774\ube0c \ub0b4\uc804\uc555 \ub808\ubca8\uc5d0 \uc801\ud569\ud55c \uc815\uaca9\uc758 AC SPD\ub97c \uc120\uc815\ud558\uc2ed\uc2dc\uc624.<\/td>\ubaa8\ub4e0 \ud328\ub110\uc5d0 Type 2 SPD\uac00 \uc801\ud569\ud558\ub2e4\uace0 \uac00\uc815\ud558\ub294 \uac83.<\/td><\/tr>
\ubaa8\ud130\ub85c\uc758 PWM \ucd9c\ub825<\/td>Follow the drive and motor manufacturers’ requirements for cable length, insulation and output filters.<\/td>\ubaa8\ud130 \ub9ac\ub4dc\uc120\uc5d0 \uc77c\ubc18\uc801\uc778 \uc804\uc6d0\uc6a9 SPD\ub97c \uc124\uce58\ud558\ub294 \uac83.<\/td><\/tr>
\uc81c\uc5b4 \ubc0f \ud1b5\uc2e0<\/td>\ub178\ucd9c\ub41c \uc2e0\ud638 \ub77c\uc778\uacfc \ud574\ub2f9 \uc778\ud130\ud398\uc774\uc2a4 \uc815\uaca9\uc744 \uac1c\ubcc4\uc801\uc73c\ub85c \uac80\ud1a0\ud558\uc2ed\uc2dc\uc624.<\/td>\uc804\uc6d0 SPD\uac00 \ubaa8\ub4e0 \uc81c\uc5b4 \ud3ec\ud2b8\ub97c \ubcf4\ud638\ud55c\ub2e4\uace0 \uac00\uc815\ud569\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table>\n

IEC 61643-11:2025<\/a> addresses SPDs connected to AC low-voltage power systems. It cautions that connection to a different kind of source requires careful consideration of system and fault conditions. A VFD’s PWM output is precisely the kind of non-standard source that calls for product-specific guidance.<\/p>\n

AC SPD\ub294 \uc5b4\ub514\uc5d0 \uc124\uce58\ud574\uc57c \ud569\ub2c8\uae4c?<\/h2>\n

Start with the building’s service entrance and the distribution board feeding the VFD. The lightning-protection arrangement and installation rules determine whether a Type 1, Type 2 or coordinated combination is appropriate. If the drive is far from the upstream SPD or its input withstand level requires additional protection, assess a suitable downstream AC SPD near the drive’s \ub77c\uc778 \uc785\ub825<\/strong>. \uc774\ub294 \uc124\uacc4 \uacb0\uc815 \uc0ac\ud56d\uc774\uba70, \ubaa8\ub4e0 VFD \uc606\uc5d0 \uc124\uce58\ud558\ub77c\ub294 \ubcf4\ud3b8\uc801\uc778 \uc9c0\uce68\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n

SPD \uc5f0\uacb0 \ub3c4\uccb4\ub294 \uc81c\ud488 \uc9c0\uce68\uc774 \ud5c8\uc6a9\ud558\ub294 \ud55c \uc9e7\uace0 \uc9c1\uc120\uc73c\ub85c \uc720\uc9c0\ud558\uc2ed\uc2dc\uc624. \ub9ac\ub4dc\uc120 \uae38\uc774\uac00 \uae38\uc5b4\uc9c0\uba74 \ube60\ub978 \uacfc\ub3c4 \ud604\uc0c1 \uc911\uc5d0 \uc7a5\ube44\uac00 \ubc1b\ub294 \uc720\ud6a8 \uc804\uc555\uc774 \uc0c1\uc2b9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.; \uc288\ub098\uc774\ub354 \uc77c\ub809\ud2b8\ub9ad(Schneider Electric)\uc774 \uc124\uba85\ud558\ub294 SPD \ub9ac\ub4dc\uc120 \uae38\uc774\uc758 \uc601\ud5a5<\/a>. Check the SPD’s continuous operating voltage (Uc), voltage protection level (Up), discharge ratings, short-circuit suitability and backup protection against the actual panel conditions. Our SPD \ubc31\uc5c5 \ud4e8\uc988 \uac00\uc774\ub4dc<\/a> \ub294 \uc0c1\ub2e8 \uc7a5\uce58 \uc810\uac80 \ub0b4\uc6a9\uc744 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n

\ucd9c\ub825 \ud544\ud130\uac00 SPD\uc640 \ub2e4\ub978 \uc774\uc720<\/h2>\n

VFD\ub294 \ubaa8\ud130 \ucd9c\ub825\uc744 \ubc18\ubcf5\uc801\uc73c\ub85c \uc2a4\uc704\uce6d\ud569\ub2c8\ub2e4. \ucf00\uc774\ube14 \ubc18\uc0ac \ubc0f \ube60\ub978 \uc804\uc555 \uc5d0\uc9c0\ub294 \ud2b9\ud788 \uae34 \ubc30\uc120 \uad6c\uac04\uc5d0\uc11c \ubaa8\ud130 \uc808\uc5f0\uc5d0 \uc2a4\ud2b8\ub808\uc2a4\ub97c \uc904 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub4dc\ub77c\uc774\ube0c \uc81c\uc870\uc5c5\uccb4\ub294 \ud574\ub2f9 \uc6a9\ub3c4\uc5d0 \ub300\ud574 dV\/dt \ud544\ud130, \uc0ac\uc778\ud30c \ud544\ud130, \ucd9c\ub825 \ub9ac\uc561\ud130 \ub610\ub294 \uae30\ud0c0 \uc2b9\uc778\ub41c \uc870\uce58\ub97c \uc9c0\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uad6c\uc131 \uc694\uc18c\ub294 \ubc18\ubcf5\uc801\uc778 \ub4dc\ub77c\uc774\ube0c \ucd9c\ub825 \ub3d9\uc791\uc744 \ud574\uacb0\ud558\uae30 \uc704\ud55c \uac83\uc774\uba70, \ud45c\uc900 AC SPD\ub294 \ub2e4\ub978 \ubaa9\uc801\uc744 \uc704\ud574 \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. ABB\uac00 \uc124\uba85\ud558\ub294 \ub4dc\ub77c\uc774\ube0c \uc2a4\uc704\uce6d \ubc0f \ucf00\uc774\ube14 \ubc18\uc0ac\ub85c \uc778\ud55c \ucd94\uac00\uc801\uc778 \ubaa8\ud130 \uc804\uc555 \uc2a4\ud2b8\ub808\uc2a4<\/a>.<\/p>\n

\ud2b9\uc815 \ucee8\ubc84\ud130 \ubc0f \ubaa8\ud130 \ud68c\ub85c\ub97c \uc704\ud55c \ud2b9\uc218 \uc81c\ud488\uc774 \uc788\uc9c0\ub9cc, \ud574\ub2f9 \ud30c\ud615 \ubc0f \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \ub300\ud574 \uba85\uc2dc\uc801\uc73c\ub85c \uc815\uaca9\uc774 \uc9c0\uc815\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. IEC AC-SPD \ub77c\ubca8\ub9cc \ubcf4\uace0 \uc801\ud569\uc131\uc744 \ucd94\ub860\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \ud574\ub2f9 \uc288\ub098\uc774\ub354 \uc77c\ub809\ud2b8\ub9ad VFD \uc9c0\uce68<\/a> \ucd9c\ub825 \uce21\uc758 \uc77c\ubc18\uc801\uc778 \uc11c\uc9c0 \ubcf4\ud638\uae30\uc5d0 \ub300\ud55c \uc720\uc6a9\ud55c \uacbd\uace0\uc785\ub2c8\ub2e4.<\/p>\n

VFD \ud504\ub85c\uc81d\ud2b8\ub97c \uc704\ud55c \uc120\uc815 \uccb4\ud06c\ub9ac\uc2a4\ud2b8<\/h2>\n
  1. \ub4dc\ub77c\uc774\ube0c \ubaa8\ub378, \uc785\ub825 \uc804\uc555, \uc0c1 \ubc30\uc5f4 \ubc0f \uc81c\uc870\uc0ac \uc9c0\uce68\uc744 \uae30\ub85d\ud558\uc2ed\uc2dc\uc624.<\/li>
  2. \uc811\uc9c0 \uc2dc\uc2a4\ud15c, \ud328\ub110 \uace0\uc7a5 \uc804\ub958, \uc0c1\ub2e8 \ubcf4\ud638 \uc7a5\uce58 \ubc0f \uae30\uc874 SPD\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/li>
  3. \ub099\ub8b0 \ub178\ucd9c \uc5ec\ubd80\uc640 \uc678\ubd80 \ud53c\ub8b0 \uc2dc\uc2a4\ud15c \uc874\uc7ac \uc5ec\ubd80\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/li>
  4. Compare the proposed SPD’s Uc, Up, Type, discharge ratings and short-circuit conditions with the installation.<\/li>
  5. \ubc30\uc804\ubc18\uc5d0\uc11c \ub4dc\ub77c\uc774\ube0c\uae4c\uc9c0\uc758 \uac70\ub9ac\uc640 \ucf00\uc774\ube14 \uacbd\ub85c\ub97c \ubb38\uc11c\ud654\ud558\uc2ed\uc2dc\uc624.<\/li>
  6. \ubaa8\ud130 \uc720\ud615\uacfc \ucd9c\ub825 \ucf00\uc774\ube14 \uae38\uc774\ub97c \uae30\ub85d\ud558\uc2ed\uc2dc\uc624. \ucd9c\ub825 \ud544\ud130 \uacb0\uc815 \uc2dc \ub4dc\ub77c\uc774\ube0c \ub9e4\ub274\uc5bc\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624.<\/li>
  7. \ub178\ucd9c\ub41c \uc81c\uc5b4, \uc774\ub354\ub137 \ub610\ub294 \ud544\ub4dc\ubc84\uc2a4 \uc5f0\uacb0\uc744 \ubcc4\ub3c4\ub85c \ub098\uc5f4\ud558\uc2ed\uc2dc\uc624.<\/li>
  8. \uc720\uc9c0\ubcf4\uc218 \uc2dc \uc0c1\ud0dc \ud45c\uc2dc \ubc0f \uad50\uccb4 \ubaa8\ub4c8\uc5d0 \ub300\ud55c \uc811\uadfc \uacc4\ud68d\uc744 \uc218\ub9bd\ud558\uc2ed\uc2dc\uc624.<\/li><\/ol>\n

    \uc6b0\ub9ac\uc758 SPD \ud45c\uc2dc\uae30 \uac00\uc774\ub4dc<\/a> \uc815\uc0c1\uc73c\ub85c \ubcf4\uc774\ub294 \uc0c1\ud0dc \ucc3d\uc774 \ubb34\uc5c7\uc744 \uc758\ubbf8\ud558\uace0 \ubb34\uc5c7\uc744 \uc99d\uba85\ud558\uc9c0 \ubabb\ud558\ub294\uc9c0 \uc124\uba85\ud569\ub2c8\ub2e4. \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uc804\uc6d0 \uce21 \uc7a5\uce58\ub294 \ub2e4\uc74c\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. Kuangya AC SPD<\/a>. \uccb4\ud06c\ub9ac\uc2a4\ud2b8\ub97c \ub2e4\uc74c \uc8fc\uc18c\ub85c \ubcf4\ub0b4\uc2ed\uc2dc\uc624. \ucfe0\uc559\uc57c<\/a> \uc801\ud569\ud55c \uc81c\ud488 \ucd94\ucc9c\uc744 \uc694\uccad\ud560 \ub54c \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/p>\n

    \uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n

    VFD \ucd9c\ub825\ub2e8\uc5d0 \uc77c\ubc18\uc801\uc778 Type 2 SPD\ub97c \uc124\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/h3>

    \ub4dc\ub77c\uc774\ube0c \ubc0f \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58(SPD) \uc81c\uc870\uc0ac\uc758 \uba85\uc2dc\uc801\uc778 \uc2b9\uc778 \uc5c6\uc774 \uc774\ub97c \uc218\ud589\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \uc77c\ubc18\uc801\uc778 AC SPD\ub294 \uc77c\ubc18\uc801\uc73c\ub85c AC \uc804\uc6d0 \ud68c\ub85c\uc6a9\uc73c\ub85c \uc124\uacc4\ub418\uc5c8\uc73c\ub098, \ucd9c\ub825\uc740 PWM \ubc29\uc2dd\uc785\ub2c8\ub2e4. \uc288\ub098\uc774\ub354 \uc77c\ub809\ud2b8\ub9ad\uc740 \uc790\uc0ac \uac00\ubcc0 \uc8fc\ud30c\uc218 \ub4dc\ub77c\uc774\ube0c(VFD)\uc758 \ubd80\ud558 \uce21\uc5d0 \uc77c\ubc18 \uc11c\uc9c0 \uc5b5\uc81c\uae30\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc744 \uba85\uc2dc\uc801\uc73c\ub85c \uae08\uc9c0\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

    \uc785\ub825 \uce21 SPD\uac00 dV\/dt \ud544\ud130\ub97c \ub300\uccb4\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/h3>

    \uc544\ub2c8\uc694. \uc785\ub825 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58(SPD)\ub294 \uacf5\uae09 \uce21\uc758 \uacfc\ub3c4 \uacfc\uc804\uc555\uc744 \ucc98\ub9ac\ud569\ub2c8\ub2e4. \ucd9c\ub825 \ud544\ud130\ub294 \uc9c0\uc815\ub41c \uacbd\uc6b0 \ubaa8\ud130\uc5d0\uc11c\uc758 \ubc18\ubcf5\uc801\uc778 \ub4dc\ub77c\uc774\ube0c \ucd9c\ub825 \uc804\uc555 \uc2a4\ud2b8\ub808\uc2a4\ub97c \ucc98\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n

    \ubaa8\ub4e0 VFD\uc5d0\ub294 \uc606\uc5d0 \uc804\uc6a9 SPD\uac00 \ud544\uc694\ud569\ub2c8\uae4c?<\/h3>

    \ubaa8\ub4e0 \uc124\uce58\uc5d0 \ub9de\ub294 \ub2e8\uc77c \ubc30\uce58 \uaddc\uce59\uc740 \uc5c6\uc2b5\ub2c8\ub2e4. \uae30\uc874 \uc0c1\uc704 \ubcf4\ud638 \uc7a5\uce58, \ucf00\uc774\ube14 \uac70\ub9ac, \uc7a5\ube44 \ub0b4\uc131 \uc218\uc900 \ubc0f \uc801\uc6a9 \uac00\ub2a5\ud55c \uaddc\uce59\uc744 \ud568\uaed8 \ud3c9\uac00\ud574\uc57c \ud569\ub2c8\ub2e4. IEC 61643-12:2020<\/a> AC \uc804\uc6d0 SPD\uc5d0 \ub300\ud55c \uc77c\ubc18\uc801\uc778 \uc120\ud0dd, \uc704\uce58 \ubc0f \uc870\uc815 \uc6d0\uce59\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"

    VFD \uc124\uce58 \uc2dc \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58(SPD)\ub294 \uc5b4\ub514\uc5d0 \uc124\uce58\ud574\uc57c \ud569\ub2c8\uae4c? AC \uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58, PWM \ubaa8\ud130 \ucd9c\ub825 \ubc0f \uc81c\uc5b4 \ud68c\ub85c\ub97c \ube44\uad50\ud55c \ud6c4, \uc2e4\ubb34\uc801\uc778 SPD \uc120\uc815 \uccb4\ud06c\ub9ac\uc2a4\ud2b8\ub97c \ud65c\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/p>","protected":false},"author":4,"featured_media":4838,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42,35],"tags":[],"class_list":["post-4837","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-surge-protection-lightning-safety","category-blog"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts\/4837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/comments?post=4837"}],"version-history":[{"count":1,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts\/4837\/revisions"}],"predecessor-version":[{"id":4839,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts\/4837\/revisions\/4839"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/media\/4838"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/media?parent=4837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/categories?post=4837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/tags?post=4837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}