{"id":6238,"date":"2022-06-26T11:22:16","date_gmt":"2022-06-26T02:22:16","guid":{"rendered":"http:\/\/ftz.myds.me\/wordpress\/?p=6238"},"modified":"2023-01-07T17:29:43","modified_gmt":"2023-01-07T08:29:43","slug":"%ec%88%9c%ec%8b%9c%ec%a0%84%ec%95%95%ea%b0%95%ed%95%98voltage-sag","status":"publish","type":"post","link":"http:\/\/ftz.myds.me\/wordpress\/%ec%88%9c%ec%8b%9c%ec%a0%84%ec%95%95%ea%b0%95%ed%95%98voltage-sag\/","title":{"rendered":"\uc21c\uc2dc\uc804\uc555\uac15\ud558(Voltage Sag)\u2055"},"content":{"rendered":"\n

[acf field=ver]\u2605[acf field=rate]![acf field=edited] <\/p>\n\n\n\n

\uc21c\uc2dc\uc804\uc555\uac15\ud558(Voltage Sag)<\/strong><\/p>\n\n\n\n

\uace0\uc870\ud30c \uc65c\ud615\uc728\uc744 \ub098\ud0c0\ub0b4\ub294 \uc804\ub958 THD(Total Harmonic Distortion)\uc640 \uc804\ub958 TDD(Total Demand Distortion) \uc758 \ucc28\uc774\uc810\uc744 \uc124\uba85\ud558\uc2dc\uc624<\/p><\/blockquote>\n\n\n\n

\uac1c\uc694<\/h3>\n\n\n\n

1) \uc21c\uc2dc\uc804\uc555\uac15\ud558\ub294 \ub300\ud615\ubd80\ud558\uc758 \ud22c\uc785, \uc120\ub85c\uc758 \uace0\uc7a5, \ub300\uc6a9\ub7c9 \uc804\ub3d9\uae30\uc758 \uae30\ub3d9\ud558\ub294 \ub3d9\uc548 \uc77c\uc2dc\uc801\uc73c\ub85c \uc804\uc555\uc774 \uc800\ud558\ub418\ub294 \uc804\ub825\ud488\uc9c8 \uc800\ud558\ud604\uc0c1\uc774\ub2e4.
2) IEEE\uc5d0\uc11c\ub294 \uc21c\uc2dc\uc804\uc555\uac15\ud558(Instantaneous Voltage Drop)\uc758 \uc870\uac74\uc744 \uc804\uc555\uc758 \uc800\ud558\uac00 0.1~0.9pu\uc774\uba70, \uadf8 \uc9c0\uc18d\uc2dc\uac04\uc740 0.5~30cycle\ub85c \uaddc\uc815\ud558\uc600\ub2e4.<\/p>\n\n\n\n

\"\"
\uc21c\uc2dc\uc804\uc555\uac15\ud558<\/figcaption><\/figure>\n\n\n\n

\ubc1c\uc0dd\uc6d0\uc778<\/h3>\n\n\n\n

1) \u201c\uc804\ub825\uacc4\ud1b5\uc758 \uad6c\uc131\ud558\ub294 \uc1a1\uc804\uc120\uc5d0 \ub099\ub8b0 \ub4f1\uc5d0 \uc758\ud574\uc11c \uace0\uc7a5\uc774 \ubc1c\uc0dd\u201d\ud55c \uacbd\uc6b0 \uace0\uc7a5\uc810\uc744 \ubcf4\ud638\uacc4\uc804\uae30\uac00 \ub3d9\uc791\ud558\uc5ec \ucc28\ub2e8\uae30\uac00 \uace0\uc7a5\uc744 \uc81c\uac70\ud558\ub294 \uc0ac\uc774\uc5d0 \uace0\uc7a5\uc810 \uc911\uc2ec\uc73c\ub85c \uc804\uc555\uc774 \uc800\ud558\ub418\uba70, \ucc28\ub2e8\uae30\uc758 \uc7ac\ud3d0\ub85c\uc5d0 \uc758\ud574\uc11c \uc21c\uac04\uc804\uc555\uac15\ud558\uac00 \uc9c0\uc18d\ub41c\ub2e4.
2) \u201c\ub300\uc6a9\ub7c9 \uc804\ub3d9\uae30\uc758 \uae30\ub3d9\u201d\uc2dc \uc815\uaca9\uc804\ub958\uc758 5~8\ubc30 \uc218\uc900\uc758 \ub9e4\uc6b0 \ud070 \uae30\ub3d9\uc804\ub958\uc5d0 \uc758\ud574 \uc77c\uc2dc\uc801\uc778 \uc804\uc555\uac15\ud558 \ubc1c\uc0dd\ub41c\ub2e4.
3) \u201c\uc804\uae30\ub85c, \uc544\ud06c\ub85c, \uc555\uc5f0\uae30 \ub4f1\uc758 \ub300\uc6a9\ub7c9 \ubcc0\ub3d9\ubd80\ud558\u201d\uc758 \uc0ac\uc6a9\uc5d0 \uc758\ud574\uc11c \uc77c\uc2dc\uc801\uc778 \uc804\uc555\uc800\ud558\uac00 \ubc1c\uc0dd\ub41c\ub2e4.
4) \ucf58\ub374\uc11c \ud22c\uc785\uc2dc \ud070 \ub3cc\uc785\uc804\ub958\uc640 \ud568\uaed8 \uc21c\uc2dc\uc804\uc555\uac15\ud558\uac00 \ubc1c\uc0dd\ub41c\ub2e4.<\/p>\n\n\n\n

\uc601\ud5a5<\/h3>\n\n\n\n

1) \ucef4\ud4e8\ud130<\/p>\n\n\n\n

30% \uc774\ud558\ub85c \uc804\uc555\uc800\ud558\uac00 0.05\ucd08 \uc774\uc0c1 \uc9c0\uc18d\ub418\uba74 \ub370\uc774\ud130 \uc190\uc2e4\uacfc CPU \uc624\ub3d9\uc791<\/p>\n\n\n\n

2) \uac00\ubcc0\uc18d \uc778\ubc84\ud130 \uc804\ub3d9\uae30<\/p>\n\n\n\n

15~20% \uc774\ud558\ub85c \uc804\uc555\uc800\ud558 0.01\ucd08 \uc774\uc0c1 \uc9c0\uc18d\ub418\uba74 \uc778\ubc84\ud130 \uc815\uc9c0\ub85c \uc804\ub3d9\uae30\uc758 \uc6b4\uc804\uc774 \uc815\uc9c0\ub41c\ub2e4.<\/p>\n\n\n\n

3) HID \ub7a8\ud504<\/p>\n\n\n\n

20% \uc774\ud558\ub85c \uc804\uc555\uc800\ud558 0.05\ucd08 \uc774\uc0c1 \uc9c0\uc18d\ub418\uba74 \uc18c\ub4f1\uc774 \ub418\uba70 \uc7ac\uc810\ub4f1\uc5d0 \uc218\ubd84 \uc18c\uc694<\/p>\n\n\n\n

4) \ubaa8\ud130\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc804\uc790\uac1c\ud3d0\uae30(M\/C)<\/p>\n\n\n\n

50% \uc774\ud558\ub85c \uc804\uc555\uc800\ud558\uac00 0.01\ucd08 \uc774\uc0c1 \uc9c0\uc18d\ub418\uba74 \uacfc\ub3c4\ud55c \ub3cc\uc785\uc804\ub958 \ubc1c\uc0dd\uc73c\ub85c \uc804\uc790\uc811\ucd09\uae30\uc758 \ub5a8\ub9bc(Chattering) \ubc0f \uac1c\ubc29\uc73c\ub85c \uc804\ub3d9\uae30 \uc6b4\uc804\uc815\uc9c0<\/p>\n\n\n\n

5) \ubcf4\ud638\uacc4\uc804\uae30 \ub3d9\uc791<\/p>\n\n\n\n

30% \uc774\ud558\ub85c \uc804\uc555\uc800\ud558\uac00 1\ucd08 \uc774\uc0c1 \uc9c0\uc18d\ub418\uba74 \uc800\uc800\uc555\uacc4\uc804\uae30(UVR) \ub4f1\uc758 \ub3d9\uc791\uc73c\ub85c \ucc28\ub2e8\uae30 \ub3d9\uc791\uc73c\ub85c \ub2e4\uc218 \ubd80\ud558\uc758 \uc815\uc9c0<\/p>\n\n\n\n

6) \uc870\uba85\uc124\ube44<\/p>\n\n\n\n

\uc870\ub3c4\uc758 \uc800\ud558, \uc218\uba85\ub2e8\ucd95, \ud50c\ub9ac\ucee4 \ubc1c\uc0dd(\ubc31\uc5f4\uc804\uad6c, \ud615\uad11\ub4f1)<\/p>\n\n\n\n

7) \ub9b4\ub808\uc774(Relay)<\/p>\n\n\n\n

30% \uc774\ud558\ub85c \uc804\uc555\uc800\ud558\uac00 0.02\ucd08 \uc774\uc0c1 \uc9c0\uc18d\ub418\uba74 \uac01\uc885 \ub9b4\ub808\uc774 \uc624\ub3d9\uc791<\/p>\n\n\n\n

\ub300\ucc45<\/h3>\n\n\n\n

1) \uae30\uae30\uc758 \ucda9\ubd84\ud55c \ub0b4\ub7c9\uc758 \ud655\ubcf4 \u2192 \uc21c\uc2dc\uc804\uc555\uc800\ud558 50%\ub97c \uace0\ub824\ud55c \uc124\uacc4<\/p>\n\n\n\n

2) \uc804\ub825\ud488\uc9c8 \uc548\uc815\ud654 \uc7a5\uce58\uc758 \ucc44\uc6a9<\/p>\n\n\n\n

(1) \ub3d9\uc801\uc804\uc555\ubcf4\uc0c1\uc7a5\uce58(DVR: Dynamic Voltage Restorer) \u2192 \uc804\uc6a9, \ube44\uc6a9\uc800\ub834
(2) \uc0c1\uc2dc\uc6b4\uc804\ubc29\uc2dd\uc758 UPS(\uc815\uc9c0\ud615, \ud68c\uc804\ud615) \u2192 \uc124\uce58\ube44 \ubc0f \uc720\uc9c0\ubcf4\uc218 \ube44\uc6a9\uc774 \ud07c
(3) SVC \u2192 L-C\uacf5\uc9c4 \ubc1c\uc0dd, \uc0ac\uc774\uc988 \uc99d\uac00
(4) \u03bc-SMES \u2192 \uc5f0\uad6c\uac1c\ubc1c \uc9c4\ud589<\/p>\n\n\n\n

3) 3\uad8c\uc120 \ubcc0\uc555\uae30\uc758 \ucc44\uc6a9<\/p>\n\n\n\n

3\uad8c\uc120 \ubcc0\uc555\uae30 \uc0ac\uc6a9\uc73c\ub85c \uc77c\ubc18\ubd80\ud558\uc640 \uc804\ub3d9\uae30 \ubd80\ud558\uc758 \ubd84\ub9ac\ud558\uc5ec \uc6b4\uc804\ud55c\ub2e4.<\/p>\n\n\n\n

4) \ucd08\uc804\ub3c4 \uc800\ud56d\ud615 \ud55c\ub958\uae30(SFCL: Superconducting Fault Current Limiter)<\/p>\n\n\n\n

\uacc4\ud1b5\uc758 \ub2e8\ub77d\uc0ac\uace0 \ubc1c\uc0dd\uc2dc \uc2e0\uc18d\ud558\uac8c \ud070 \ud55c\ub958\uc800\ud56d\uc744 \ubc1c\uc0dd\uc2dc\ucf1c \uac74\uc804\uacc4\ud1b5\uc758 \uc804\uc555\uc758 \uc800\ud558\ub97c \uc5b5\uc81c\ud55c\ub2e4.<\/p>\n\n\n\n

5) \uc804\ub3d9\uae30 \uae30\ub3d9\ubc29\uc2dd\uc758 \uac1c\uc120\ud558\uc5ec \uae30\ub3d9\uc804\ub958\ub97c \uc5b5\uc81c<\/p>\n\n\n\n

\uc778\ubc84\ud130 \uae30\ub3d9(Soft Start \ubc29\uc2dd), \uac10\uc804\uc555 \uae30\ub3d9(Y-\u25b3, \ucf58\ub3cc\ud37c \uae30\ub3d9, \ub9ac\uc561\ud130 \uae30\ub3d9)<\/p>\n\n\n\n

6) \uacc4\ud1b5\uce21 \ub300\ucc45<\/p>\n\n\n\n

(1) \ub300\uc6a9\ub7c9 \uc804\ub3d9\uae30, \ub300\uc6a9\ub7c9 \ubcc0\ub3d9 \ubd80\ud558\ub294 \uc804\uc6a9\uacc4\ud1b5\uc73c\ub85c \uacf5\uae09
(2) \uc9c1\ub82c\ucf58\ub374\uc11c \uc124\uce58\ub85c \uc120\ub85c\uc758 \ub9ac\uc561\ud134\uc2a4 \uc800\uac10
(3) \ub2e8\ub77d\uc6a9\ub7c9\uc758 \uc99d\ub300<\/p>\n\n\n\n

\u203b SVC (Static Var Compensator)<\/h4>\n\n\n\n

\ub300\uc6a9\ub7c9 \uc804\ub825\uc804\uc790 \uc2a4\uc704\uce58\uc778 Thyristor\uc5d0 \uc758\ud574\uc11c \ubb34\ud6a8\uc804\ub825\uc744 \ub9ac\uc561\ud130(\uc810\ud638\uac01 \uc81c\uc5b4) \ubc0f \ucee4\ud328\uc2dc\ud130(\uc2a4\uc704\uce6d \uc81c\uc5b4) \ubc45\ud06c\ub97c \uace0\uc18d\uc73c\ub85c \uc81c\uc5b4\ud568\uc73c\ub85c\uc11c \uacc4\ud1b5\uc804\uc555\uc744 \ud5c8\uc6a9 \ubc94\uc704\ub0b4\uc5d0 \uc788\ub3c4\ub85d \uc720\uc9c0\uc2dc\ud0a4\ub294 \uc7a5\uce58\uc774\ub2e4. Thyristor\uc758 \uace0\uc18d\uc2a4\uc704\uce6d\uc5d0 \uc758\ud574\uc11c \uace0\uc18d, \uc5f0\uc18d\uc73c\ub85c \ubb34\ud6a8\uc804\ub825\uc744 \uc81c\uc5b4\ud560 \uc218\uac00 \uc788\ub2e4. \uc870\ud569\ubc29\uc2dd\uc740 TCR+TSC, TCR+FC, TCR+MSC\uac00 \uc788\uc73c\uba70, \uc77c\ubc18\uc801\uc73c\ub85c 1\uac1c\uc758 TCR\uc5d0 \uc5ec\ub7ec\uac1c\uc758 TSC\uc758 \uc870\ud569\uc73c\ub85c \uc2dc\uc2a4\ud15c\uc744 \ub9cc\ub4e0\ub2e4.<\/p>\n\n\n\n

\"\"
SVC(\uc804\uc555\ubcc0\ub3d9)<\/figcaption><\/figure>\n\n\n\n

\u203b \ub3d9\uc801 \uc804\uc555\ubcf4\uc0c1\uae30 <\/h4>\n\n\n\n

(DVR: Dynamic Voltage Restorer)<\/p>\n\n\n\n

\"\"
\ub3d9\uc801 \uc804\uc555\ubcf4\uc0c1\uae30<\/figcaption><\/figure>\n\n\n\n

\ub3d9\uc801 \uc804\uc555\ubcf4\uc0c1\uae30(DVR)\uc740 \uc9c1\ub958 \uc5d0\ub108\uc9c0 \uc800\uc7a5\uc7a5\uce58\uc778 \ucd95\uc804\uc9c0\uc758 \uc5d0\ub108\uc9c0\ub97c \uc774\uc6a9\ud558\uc5ec PWM \uc81c\uc5b4 \uc778\ubc84\ud130\ub85c \uad50\ub958\uc804\uc555\uc758 \ud06c\uae30, \uc704\uc0c1\uc744 \uc81c\uc5b4\ub85c \ubd80\ud558\uac00 \uc694\uad6c\ud558\ub294 \uc720\ud6a8\uc804\ub825\uacfc \ubb34\ud6a8\uc804\ub825\uc744 \ub2a5\ub3d9\uc801\uc73c\ub85c \uc81c\uc5b4\ud558\ub294 \uc7a5\uce58\uc774\ub2e4. DVR\uc740 \uc8fc\ub85c \uc21c\uc2dc\uc804\uc555\uac15\ud558 \ubcf4\uc0c1\uc744 \uc704\ud574 \uc0ac\uc6a9\ub418\uae30 \ub54c\ubb38\uc5d0 \ubb34\ud6a8\uc804\ub825\uc758 \uacf5\uae09\uc744 \uc704\ud574 \uc778\ubc84\ud130\uc5d0\uc11c \uc804\uc555\uc758 \ud06c\uae30\ub97c \uc81c\uc5b4\ud55c\ub2e4.<\/p>\n\n\n\n

DVR\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 50% \uc804\uc555\uc800\ud558\uac00 (0.1~\uc218\ucd08)\ub3d9\uc548 \uc9c0\uc18d\ub418\ub294 Sag\ub97c \ubc29\uc9c0\ud560 \ub2a5\ub825\uc744 \uac16\ub294\ub2e4. \uadf8\ub9ac\uace0 \ub300\ubd80\ubd84 Sag 50% \uc774\ud558\uc774\ub2e4.<\/p>\n\n\n\n

\ub610\ud55c DVR\uc740 \ubb34\ud6a8\uc804\ub825\uc758 \uacf5\uae09\ubfd0\ub9cc \uc544\ub2c8\ub77c \ud761\uc218\ub2a5\ub825\ub3c4 \uac00\uc9c0\uace0 \uc788\uc73c\ubbc0\ub85c \uc21c\uc2dc\uc804\uc555\uc0c1\uc2b9(Swell) \ubc0f \uc804\uc555\uc758 \ubd88\ud3c9\ud615(Unbalance)\uc744 \uac1c\uc120\uc2dc\ud0a4\ub294\ub370\uc5d0\ub3c4 \uc0ac\uc6a9\ub418\uba70, \ub2a5\ub3d9\ud544\ud130\ucc98\ub7fc \ud30c\ud615\uc758 \uc65c\uace1\uc744 \ub9c9\uc544 \uace0\uc870\ud30c(Harmonics)\ub97c \uc800\uac10\uc2dc\ud0a4\ub294\ub370\uc5d0\ub3c4 \ud65c\uc6a9\ub41c\ub2e4.<\/p>\n\n\n\n

\u203b \ubb34\uc815\uc804 \uc804\uc6d0\uacf5\uae09\uc7a5\uce58<\/a> <\/h4>\n\n\n\n

(UPS: Uninterruptible Power Supply)<\/p>\n\n\n\n

\"\"
\uc815\uc9c0\ud615 UPS<\/figcaption><\/figure>\n\n\n\n
\u2605\uc804\ub825\ud488\uc9c8<\/a>
\uc804\ub825\ud488\uc9c8 \uc800\ud574\uc694\uc18c<\/a>
\uc21c\uc2dc\uc804\uc555\uac15\ud558(Voltage Sag)<\/a>
–\ubb34\uc815\uc804-\uc804\uc6d0\uacf5\uae09\uc7a5\uce58<\/a>
\uc804\uc555 \ubcc0\ub3d9<\/a>
\uace0\uc870\ud30c(1)<\/a>
–\uace0\uc870\ud30c\uac00 \uc804\ub825\uae30\uae30\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5<\/a>
\uace0\uc870\ud30c \uad00\ub9ac\uae30\uc900<\/a>
–\uc608\uc81c<\/a>
K-Factor \ubcc0\uc555\uae30<\/a>
\ub178\uc774\uc988(Noise)<\/a>
\uc815\uc804\uae30<\/a> <\/em><\/strong><\/h6>\n","protected":false},"excerpt":{"rendered":"

[acf field=ver]\u2605[acf field=rate]![acf field=edited] \uc21c\uc2dc\uc804\uc555\uac15\ud558(Voltage Sag) \uace0\uc870\ud30c \uc65c\ud615\uc728\uc744 \ub098\ud0c0\ub0b4\ub294 \uc804\ub958 THD(Total Harmonic Distortion)\uc640 \uc804\ub958 TDD(Total Demand Distortion) \uc758 \ucc28\uc774\uc810\uc744 \uc124\uba85\ud558\uc2dc\uc624 \uac1c\uc694 1) \uc21c\uc2dc\uc804\uc555\uac15\ud558\ub294 \ub300\ud615\ubd80\ud558\uc758 \ud22c\uc785, \uc120\ub85c\uc758 \uace0\uc7a5, \ub300\uc6a9\ub7c9 \uc804\ub3d9\uae30\uc758 \uae30\ub3d9\ud558\ub294 \ub3d9\uc548 \uc77c\uc2dc\uc801\uc73c\ub85c \uc804\uc555\uc774 \uc800\ud558\ub418\ub294 \uc804\ub825\ud488\uc9c8 \uc800\ud558\ud604\uc0c1\uc774\ub2e4.2) IEEE\uc5d0\uc11c\ub294 \uc21c\uc2dc\uc804\uc555\uac15\ud558(Instantaneous Voltage Drop)\uc758 \uc870\uac74\uc744 \uc804\uc555\uc758 \uc800\ud558\uac00 0.1~0.9pu\uc774\uba70, \uadf8 \uc9c0\uc18d\uc2dc\uac04\uc740 0.5~30cycle\ub85c \uaddc\uc815\ud558\uc600\ub2e4. \ubc1c\uc0dd\uc6d0\uc778 1) \u201c\uc804\ub825\uacc4\ud1b5\uc758 \uad6c\uc131\ud558\ub294 \uc1a1\uc804\uc120\uc5d0 \ub099\ub8b0 \ub4f1\uc5d0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[503],"tags":[],"_links":{"self":[{"href":"http:\/\/ftz.myds.me\/wordpress\/wp-json\/wp\/v2\/posts\/6238"}],"collection":[{"href":"http:\/\/ftz.myds.me\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ftz.myds.me\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ftz.myds.me\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/ftz.myds.me\/wordpress\/wp-json\/wp\/v2\/comments?post=6238"}],"version-history":[{"count":0,"href":"http:\/\/ftz.myds.me\/wordpress\/wp-json\/wp\/v2\/posts\/6238\/revisions"}],"wp:attachment":[{"href":"http:\/\/ftz.myds.me\/wordpress\/wp-json\/wp\/v2\/media?parent=6238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ftz.myds.me\/wordpress\/wp-json\/wp\/v2\/categories?post=6238"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ftz.myds.me\/wordpress\/wp-json\/wp\/v2\/tags?post=6238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}