{"id":6155,"date":"2026-07-04T15:16:19","date_gmt":"2026-07-04T08:16:19","guid":{"rendered":"https:\/\/sunnysolar.vn\/?p=6155"},"modified":"2026-07-04T15:16:19","modified_gmt":"2026-07-04T08:16:19","slug":"sut-ap-trong-mach-dien-ac-va-dc","status":"publish","type":"post","link":"https:\/\/sunnysolar.vn\/en\/sut-ap-trong-mach-dien-ac-va-dc\/","title":{"rendered":"S\u1ee5t \u00c1p Trong M\u1ea1ch \u0110i\u1ec7n AC V\u00e0 DC"},"content":{"rendered":"<h1 data-path-to-node=\"2\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6157\" src=\"http:\/\/sunnysolar.vn\/wp-content\/uploads\/2026\/07\/Sut-ap-trong-mach-dien-AC-va-DC.jpeg\" alt=\"\" width=\"1408\" height=\"768\" srcset=\"https:\/\/sunnysolar.vn\/wp-content\/uploads\/2026\/07\/Sut-ap-trong-mach-dien-AC-va-DC.jpeg 1408w, https:\/\/sunnysolar.vn\/wp-content\/uploads\/2026\/07\/Sut-ap-trong-mach-dien-AC-va-DC-300x164.jpeg 300w, https:\/\/sunnysolar.vn\/wp-content\/uploads\/2026\/07\/Sut-ap-trong-mach-dien-AC-va-DC-1024x559.jpeg 1024w, https:\/\/sunnysolar.vn\/wp-content\/uploads\/2026\/07\/Sut-ap-trong-mach-dien-AC-va-DC-768x419.jpeg 768w, https:\/\/sunnysolar.vn\/wp-content\/uploads\/2026\/07\/Sut-ap-trong-mach-dien-AC-va-DC-18x10.jpeg 18w, https:\/\/sunnysolar.vn\/wp-content\/uploads\/2026\/07\/Sut-ap-trong-mach-dien-AC-va-DC-600x327.jpeg 600w, https:\/\/sunnysolar.vn\/wp-content\/uploads\/2026\/07\/Sut-ap-trong-mach-dien-AC-va-DC-64x35.jpeg 64w\" sizes=\"auto, (max-width: 1408px) 100vw, 1408px\" \/><\/h1>\n<h1 data-path-to-node=\"2\">S\u1ee5t \u00c1p Trong M\u1ea1ch \u0110i\u1ec7n AC V\u00e0 DC: Nguy\u00ean Nh\u00e2n, C\u00f4ng Th\u1ee9c V\u00e0 C\u00e1ch Kh\u1eafc Ph\u1ee5c<\/h1>\n<p data-path-to-node=\"3\"><b data-path-to-node=\"3\" data-index-in-node=\"0\">S\u1ee5t \u00e1p (Voltage Drop)<\/b> l\u00e0 m\u1ed9t trong nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng ph\u1ed5 bi\u1ebfn nh\u1ea5t trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n n\u00f3i chung v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi n\u00f3i ri\u00eang. N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n k\u1ef9 l\u01b0\u1ee1ng ngay t\u1eeb kh\u00e2u thi\u1ebft k\u1ebf, s\u1ee5t \u00e1p kh\u00f4ng ch\u1ec9 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t thi\u1ebft b\u1ecb m\u00e0 c\u00f2n c\u00f3 th\u1ec3 g\u00e2y ra nh\u1eefng r\u1ee7i ro l\u1edbn v\u1ec1 an to\u00e0n \u0111i\u1ec7n.<\/p>\n<p data-path-to-node=\"4\">B\u00e0i vi\u1ebft n\u00e0y <b data-path-to-node=\"4\" data-index-in-node=\"13\">Sunny Solar<\/b> s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 nguy\u00ean nh\u00e2n, c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n v\u00e0 c\u00e1ch t\u1ed1i \u01b0u h\u00f3a s\u1ee5t \u00e1p cho c\u1ea3 m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u (AC) v\u00e0 m\u1ed9t chi\u1ec1u (DC).<\/p>\n<h2 data-path-to-node=\"6\">1. S\u1ee5t \u00c1p L\u00e0 G\u00ec? V\u00ec Sao C\u1ea7n Ph\u1ea3i Quan T\u00e2m?<\/h2>\n<p data-path-to-node=\"7\">S\u1ee5t \u00e1p x\u1ea3y ra khi n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n b\u1ecb hao h\u1ee5t d\u01b0\u1edbi d\u1ea1ng nhi\u1ec7t do d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua m\u1ed9t v\u1eadt d\u1eabn (d\u00e2y c\u00e1p) c\u00f3 \u0111i\u1ec7n tr\u1edf.<\/p>\n<p data-path-to-node=\"8\">Khi hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y x\u1ea3y ra, \u0111i\u1ec7n \u00e1p th\u1ef1c t\u1ebf \u0111o \u0111\u01b0\u1ee3c t\u1ea1i t\u1ea3i ti\u00eau th\u1ee5 (thi\u1ebft b\u1ecb \u0111i\u1ec7n, bi\u1ebfn t\u1ea7n, pin l\u01b0u tr\u1eef) s\u1ebd th\u1ea5p h\u01a1n \u0111i\u1ec7n \u00e1p t\u1ea1i ngu\u1ed3n c\u1ea5p.<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\"><b data-path-to-node=\"9,0,0\" data-index-in-node=\"0\">H\u1ec7 l\u1ee5y:<\/b> Thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng k\u00e9m hi\u1ec7u qu\u1ea3, \u0111\u00e8n b\u1ecb nh\u1ea5p nh\u00e1y\/t\u1ed1i \u0111i, c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ea1y c\u1ea3m b\u1ecb l\u1ed7i, ho\u1eb7c th\u1eadm ch\u00ed k\u00edch ho\u1ea1t c\u1ea3nh b\u00e1o th\u1ea5p \u00e1p (undervoltage) tr\u00ean bi\u1ebfn t\u1ea7n (Inverter).<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"11\">2. C\u00e1c Nguy\u00ean Nh\u00e2n Ch\u00ednh G\u00e2y Ra S\u1ee5t \u00c1p<\/h2>\n<p data-path-to-node=\"12\">S\u1ee5t \u00e1p trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n ph\u1ee5 thu\u1ed9c v\u00e0o 5 y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i sau:<\/p>\n<ul data-path-to-node=\"13\">\n<li>\n<p data-path-to-node=\"13,0,0\"><b data-path-to-node=\"13,0,0\" data-index-in-node=\"0\">D\u00f2ng \u0111i\u1ec7n (<span class=\"math-inline\" data-math=\"I\" data-index-in-node=\"11\">I<\/span>):<\/b> C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n c\u00e0ng cao, s\u1ee5t \u00e1p c\u00e0ng l\u1edbn.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,1,0\"><b data-path-to-node=\"13,1,0\" data-index-in-node=\"0\">Chi\u1ec1u d\u00e0i d\u00e2y d\u1eabn (<span class=\"math-inline\" data-math=\"L\" data-index-in-node=\"19\">L<\/span>):<\/b> \u0110\u01b0\u1eddng d\u00e2y c\u00e0ng d\u00e0i, \u0111i\u1ec7n tr\u1edf t\u1ed5ng th\u1ec3 c\u00e0ng t\u0103ng, d\u1eabn \u0111\u1ebfn hao h\u1ee5t \u0111i\u1ec7n \u00e1p c\u00e0ng nhi\u1ec1u.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,2,0\"><b data-path-to-node=\"13,2,0\" data-index-in-node=\"0\">K\u00edch c\u1ee1 d\u00e2y d\u1eabn (<span class=\"math-inline\" data-math=\"A\" data-index-in-node=\"17\">A<\/span>):<\/b> D\u00e2y d\u1eabn c\u00f3 ti\u1ebft di\u1ec7n nh\u1ecf s\u1ebd c\u00f3 \u0111i\u1ec7n tr\u1edf l\u1edbn. Ng\u01b0\u1ee3c l\u1ea1i, d\u00e2y c\u00e0ng d\u00e0y (ti\u1ebft di\u1ec7n l\u1edbn) th\u00ec \u0111i\u1ec7n tr\u1edf c\u00e0ng th\u1ea5p.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,3,0\"><b data-path-to-node=\"13,3,0\" data-index-in-node=\"0\">Ch\u1ea5t li\u1ec7u d\u00e2y d\u1eabn (\u03c1):<\/b> \u0110\u1ed3ng (Cu) c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n t\u1ed1t h\u01a1n nh\u00f4m (Al), do \u0111\u00f3 d\u00e2y \u0111\u1ed3ng \u00edt b\u1ecb s\u1ee5t \u00e1p h\u01a1n d\u00e2y nh\u00f4m \u1edf c\u00f9ng m\u1ed9t ti\u1ebft di\u1ec7n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,4,0\"><b data-path-to-node=\"13,4,0\" data-index-in-node=\"0\">Lo\u1ea1i h\u1ec7 th\u1ed1ng \u0111i\u1ec7n:<\/b> H\u1ec7 th\u1ed1ng 1 pha, 3 pha hay h\u1ec7 th\u1ed1ng m\u1ed9t chi\u1ec1u (DC) s\u1ebd c\u00f3 \u0111\u01b0\u1eddng ho\u00e0n d\u00f2ng v\u00e0 \u0111\u1eb7c t\u00ednh hao h\u1ee5t kh\u00e1c nhau.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"14\">B\u1ea3ng tra c\u1ee9u \u0111i\u1ec7n tr\u1edf su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn:<\/h3>\n<table data-path-to-node=\"15\">\n<thead>\n<tr>\n<td><strong>Ch\u1ea5t li\u1ec7u<\/strong><\/td>\n<td><strong>\u0110i\u1ec7n tr\u1edf su\u1ea5t \u03c1 (\u03a9\u22c5mm2\/m)<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"15,1,0,0\"><b data-path-to-node=\"15,1,0,0\" data-index-in-node=\"0\">\u0110\u1ed3ng (Copper)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"15,1,1,0\">0.0172<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"15,2,0,0\"><b data-path-to-node=\"15,2,0,0\" data-index-in-node=\"0\">Nh\u00f4m (Aluminum)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"15,2,1,0\">0.0282<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-path-to-node=\"17\">3. Ti\u00eau Chu\u1ea9n Gi\u1edbi H\u1ea1n S\u1ee5t \u00c1p Cho Ph\u00e9p<\/h2>\n<p data-path-to-node=\"18\">Theo c\u00e1c ti\u00eau chu\u1ea9n \u0111i\u1ec7n l\u1ef1c qu\u1ed1c t\u1ebf v\u00e0 Vi\u1ec7t Nam (nh\u01b0 NEC, IEC), m\u1ee9c s\u1ee5t \u00e1p t\u1ed1i \u0111a \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh l\u00e0:<\/p>\n<ul data-path-to-node=\"19\">\n<li>\n<p data-path-to-node=\"19,0,0\"><b data-path-to-node=\"19,0,0\" data-index-in-node=\"0\">M\u1ea1ch nh\u00e1nh (Branch Circuits):&lt;= 3%<\/b><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"19,1,0\"><b data-path-to-node=\"19,1,0\" data-index-in-node=\"0\">\u0110\u01b0\u1eddng d\u00e2y trung trung th\u1ebf\/L\u01b0\u1edbi ph\u00e2n ph\u1ed1i (Feeders):<\/b> &lt;= 5%<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"19,2,0\"><b data-path-to-node=\"19,2,0\" data-index-in-node=\"0\">H\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi (DC Solar Wiring):<\/b> Th\u01b0\u1eddng duy tr\u00ec \u1edf m\u1ee9c <b data-path-to-node=\"19,2,0\" data-index-in-node=\"63\">2% \u2013 3%<\/b> \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a hao h\u1ee5t s\u1ea3n l\u01b0\u1ee3ng \u0111i\u1ec7n.<\/p>\n<\/li>\n<\/ul>\n<blockquote data-path-to-node=\"20\">\n<p data-path-to-node=\"20,0\"><b data-path-to-node=\"20,0\" data-index-in-node=\"0\">V\u00ed d\u1ee5 th\u1ef1c t\u1ebf:<\/b> N\u1ebfu \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0 <b data-path-to-node=\"20,0\" data-index-in-node=\"52\">230V<\/b>, m\u1ee9c s\u1ee5t \u00e1p 3% t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi <b data-path-to-node=\"20,0\" data-index-in-node=\"88\">6.9V<\/b>. Ngh\u0129a l\u00e0 \u0111i\u1ec7n \u00e1p t\u1ed1i thi\u1ec3u t\u1ea1i t\u1ea3i ph\u1ea3i \u0111\u1ea1t t\u1eeb <b data-path-to-node=\"20,0\" data-index-in-node=\"141\">223.1V<\/b> tr\u1edf l\u00ean.<\/p>\n<\/blockquote>\n<h2 data-path-to-node=\"22\">4. C\u00f4ng Th\u1ee9c T\u00ednh S\u1ee5t \u00c1p Trong M\u1ea1ch AC v\u00e0 DC<\/h2>\n<p data-path-to-node=\"23\">\u0110\u1ec3 t\u00ednh to\u00e1n ch\u00ednh x\u00e1c c\u1ee1 d\u00e2y nh\u1eb1m ki\u1ec3m so\u00e1t \u0111\u1ed9 s\u1ee5t \u00e1p, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng \u00e1p d\u1ee5ng c\u00e1c c\u00f4ng th\u1ee9c d\u1ef1a tr\u00ean \u0111i\u1ec7n tr\u1edf su\u1ea5t d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<h3 data-path-to-node=\"24\">\u0110\u1ed1i v\u1edbi m\u1ea1ch DC v\u00e0 M\u1ea1ch AC 1 Pha:<\/h3>\n<div data-path-to-node=\"25\">\n<div class=\"math-block\" data-math=\"V_{\\text{drop}} = \\frac{2 \\times \\rho \\times L \\times I}{A}\">\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"3182\" data-end=\"3192\">C\u00f4ng th\u1ee9c:<\/p>\n<p data-start=\"3194\" data-end=\"3222\"><strong data-start=\"3194\" data-end=\"3222\">\u0394V = (2 \u00d7 \u03c1 \u00d7 L \u00d7 I) \/ A<\/strong><\/p>\n<p data-start=\"3224\" data-end=\"3233\">Trong \u0111\u00f3:<\/p>\n<ul data-start=\"3235\" data-end=\"3364\">\n<li data-section-id=\"1txm6ih\" data-start=\"3235\" data-end=\"3279\"><strong data-start=\"3237\" data-end=\"3242\">\u03c1<\/strong>: \u0110i\u1ec7n tr\u1edf su\u1ea5t c\u1ee7a d\u00e2y d\u1eabn (\u03a9\u00b7mm\u00b2\/m)<\/li>\n<li data-section-id=\"1jl3ajj\" data-start=\"3280\" data-end=\"3312\"><strong data-start=\"3282\" data-end=\"3287\">L<\/strong>: Chi\u1ec1u d\u00e0i m\u1ed9t chi\u1ec1u (m)<\/li>\n<li data-section-id=\"o60i7p\" data-start=\"3313\" data-end=\"3335\"><strong data-start=\"3315\" data-end=\"3320\">I<\/strong>: D\u00f2ng \u0111i\u1ec7n (A)<\/li>\n<li data-section-id=\"etk6bx\" data-start=\"3336\" data-end=\"3364\"><strong data-start=\"3338\" data-end=\"3343\">A<\/strong>: Ti\u1ebft di\u1ec7n d\u00e2y (mm\u00b2)<\/li>\n<\/ul>\n<p data-start=\"3366\" data-end=\"3430\">H\u1ec7 s\u1ed1 <strong data-start=\"3372\" data-end=\"3377\">2<\/strong> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00ec d\u00f2ng \u0111i\u1ec7n \u0111i v\u00e0 v\u1ec1 tr\u00ean hai d\u00e2y d\u1eabn.<\/p>\n<\/div>\n<\/div>\n<h3 data-path-to-node=\"26\">\u0110\u1ed1i v\u1edbi m\u1ea1ch AC 3 Pha:<\/h3>\n<div data-path-to-node=\"27\">\n<div class=\"math-block\" data-math=\"V_{\\text{drop}} = \\frac{\\sqrt{3} \\times \\rho \\times L \\times I}{A}\">\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"3464\" data-end=\"3474\">C\u00f4ng th\u1ee9c:<\/p>\n<p data-start=\"3476\" data-end=\"3505\"><strong data-start=\"3476\" data-end=\"3505\">\u0394V = (\u221a3 \u00d7 \u03c1 \u00d7 L \u00d7 I) \/ A<\/strong><\/p>\n<p data-start=\"3507\" data-end=\"3559\">Do d\u00f2ng \u0111i\u1ec7n ba pha ph\u00e2n b\u1ed1 \u0111\u1ec1u n\u00ean h\u1ec7 s\u1ed1 tr\u1edf th\u00e0nh:<\/p>\n<p data-start=\"3561\" data-end=\"3575\"><strong data-start=\"3561\" data-end=\"3575\">\u221a3 \u2248 1,732<\/strong><\/p>\n<\/div>\n<\/div>\n<p data-path-to-node=\"28\"><b data-path-to-node=\"28\" data-index-in-node=\"0\">Nh\u1edd \u0111\u00f3 t\u1ed5n th\u1ea5t \u0111i\u1ec7n \u00e1p c\u1ee7a h\u1ec7 ba pha th\u01b0\u1eddng nh\u1ecf h\u01a1n so v\u1edbi h\u1ec7 m\u1ed9t pha c\u00f9ng c\u00f4ng su\u1ea5t.<\/b><\/p>\n<h2 data-path-to-node=\"31\">5. T\u1ea7m Quan Tr\u1ecdng \u0110\u1eb7c Bi\u1ec7t C\u1ee7a S\u1ee5t \u00c1p Trong H\u1ec7 Th\u1ed1ng \u0110i\u1ec7n M\u1eb7t Tr\u1eddi<\/h2>\n<p data-path-to-node=\"32\">Trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi (PV Systems), vi\u1ec7c ki\u1ec3m so\u00e1t s\u1ee5t \u00e1p l\u00e0 y\u1ebfu t\u1ed1 s\u1ed1ng c\u00f2n quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn <b data-path-to-node=\"32\" data-index-in-node=\"103\">hi\u1ec7u su\u1ea5t sinh \u0111i\u1ec7n<\/b> v\u00e0 <b data-path-to-node=\"32\" data-index-in-node=\"126\">tu\u1ed5i th\u1ecd thi\u1ebft b\u1ecb<\/b>.<\/p>\n<ul data-path-to-node=\"33\">\n<li>\n<p data-path-to-node=\"33,0,0\"><b data-path-to-node=\"33,0,0\" data-index-in-node=\"0\">\u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng DC \u0111i\u1ec7n \u00e1p th\u1ea5p (12V\/24V):<\/b> M\u1ed9t m\u1ee9c s\u1ee5t \u00e1p ch\u1ec9 3% tr\u00ean h\u1ec7 12V \u0111\u00e3 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi <b data-path-to-node=\"33,0,0\" data-index-in-node=\"97\">0.36V<\/b>. S\u1ef1 s\u1ee5t gi\u1ea3m n\u00e0y t\u01b0\u1edfng ch\u1eebng nh\u1ecf nh\u01b0ng \u0111\u1ee7 \u0111\u1ec3 khi\u1ebfn s\u1ea1c n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi kh\u00f4ng th\u1ec3 s\u1ea1c \u0111\u1ea7y b\u00ecnh \u1eafc quy\/pin lithium, ho\u1eb7c l\u00e0m k\u00edch ho\u1ea1t l\u1ed7i d\u1eebng ho\u1ea1t \u0111\u1ed9ng tr\u00ean bi\u1ebfn t\u1ea7n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"33,1,0\"><b data-path-to-node=\"33,1,0\" data-index-in-node=\"0\">Hao ph\u00ed kinh t\u1ebf:<\/b> \u0110i\u1ec7n n\u0103ng hao h\u1ee5t do s\u1ee5t \u00e1p s\u1ebd bi\u1ebfn th\u00e0nh nhi\u1ec7t n\u0103ng t\u1ecfa ra tr\u00ean \u0111\u01b0\u1eddng d\u00e2y. D\u00e2y d\u1eabn v\u1eeba b\u1ecb n\u00f3ng (nguy c\u01a1 h\u1ecfa ho\u1ea1n), doanh nghi\u1ec7p v\u1eeba b\u1ecb m\u1ea5t \u0111i m\u1ed9t l\u01b0\u1ee3ng \u0111i\u1ec7n n\u0103ng \u0111\u00e1ng l\u1ebd \u0111\u00e3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ho\u1eb7c b\u00e1n l\u1ea1i.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"35\">6. Gi\u1ea3i Ph\u00e1p Gi\u1ea3m S\u1ee5t \u00c1p Hi\u1ec7u Qu\u1ea3 Cho \u0110\u01b0\u1eddng D\u00e2y<\/h2>\n<p data-path-to-node=\"36\">\u0110\u1ec3 t\u1ed1i \u01b0u h\u00f3a h\u1ec7 th\u1ed1ng \u0111i\u1ec7n v\u00e0 gi\u1ea3m thi\u1ec3u s\u1ee5t \u00e1p xu\u1ed1ng m\u1ee9c th\u1ea5p nh\u1ea5t, b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c gi\u1ea3i ph\u00e1p th\u1ef1c t\u1ebf sau:<\/p>\n<ol start=\"1\" data-path-to-node=\"37\">\n<li>\n<p data-path-to-node=\"37,0,0\"><b data-path-to-node=\"37,0,0\" data-index-in-node=\"0\">T\u0103ng ti\u1ebft di\u1ec7n d\u00e2y d\u1eabn:<\/b> S\u1eed d\u1ee5ng lo\u1ea1i c\u00e1p d\u00e0y h\u01a1n, c\u00f3 thi\u1ebft k\u1ebf ch\u1ecbu t\u1ea3i t\u1ed1t h\u01a1n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"37,1,0\"><b data-path-to-node=\"37,1,0\" data-index-in-node=\"0\">R\u00fat ng\u1eafn kho\u1ea3ng c\u00e1ch:<\/b> B\u1ed1 tr\u00ed t\u1ee7 \u0111i\u1ec7n, bi\u1ebfn t\u1ea7n v\u00e0 gi\u00e0n pin m\u1eb7t tr\u1eddi h\u1ee3p l\u00fd \u0111\u1ec3 gi\u1ea3m chi\u1ec1u d\u00e0i \u0111\u01b0\u1eddng \u0111i c\u1ee7a d\u00e2y c\u00e1p.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"37,2,0\"><b data-path-to-node=\"37,2,0\" data-index-in-node=\"0\">\u01afu ti\u00ean d\u00f9ng d\u00e2y \u0111\u1ed3ng:<\/b> Thay th\u1ebf d\u00e2y nh\u00f4m b\u1eb1ng d\u00e2y \u0111\u1ed3ng \u0111\u1ec3 c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n t\u1ed1i \u01b0u nh\u1ea5t.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"37,3,0\"><b data-path-to-node=\"37,3,0\" data-index-in-node=\"0\">C\u00e2n b\u1eb1ng pha:<\/b> \u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng AC 3 pha, c\u1ea7n ph\u00e2n b\u1ed5 c\u00e1c t\u1ea3i 1 pha \u0111\u1ed3ng \u0111\u1ec1u gi\u1eefa c\u00e1c pha \u0111\u1ec3 tr\u00e1nh l\u1ec7ch pha g\u00e2y s\u1ee5t \u00e1p c\u1ee5c b\u1ed9.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"37,4,0\"><b data-path-to-node=\"37,4,0\" data-index-in-node=\"0\">N\u00e2ng cao \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng:<\/b> Chuy\u1ec3n \u0111\u1ed5i h\u1ec7 th\u1ed1ng t\u1eeb 12V DC l\u00ean 24V DC ho\u1eb7c 48V DC. Khi \u0111i\u1ec7n \u00e1p t\u0103ng, d\u00f2ng \u0111i\u1ec7n (<span class=\"math-inline\" data-math=\"I\" data-index-in-node=\"110\">$I$<\/span>) gi\u1ea3m, t\u1eeb \u0111\u00f3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 s\u1ee5t \u00e1p theo c\u00f4ng th\u1ee9c.<\/p>\n<\/li>\n<\/ol>\n<h2 data-path-to-node=\"39\">K\u1ebft Lu\u1eadn<\/h2>\n<p data-path-to-node=\"40\">Vi\u1ec7c t\u00ednh to\u00e1n v\u00e0 ki\u1ec3m tra s\u1ee5t \u00e1p l\u00e0 b\u01b0\u1edbc b\u1eaft bu\u1ed9c khi thi\u1ebft k\u1ebf b\u1ea5t k\u1ef3 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n n\u00e0o, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111i\u1ec7n m\u1eb7t tr\u1eddi. Gi\u1eef m\u1ee9c t\u1ed5n hao <b data-path-to-node=\"40\" data-index-in-node=\"133\">d\u01b0\u1edbi 3%<\/b> l\u00e0 ch\u00eca kh\u00f3a v\u00e0ng gi\u00fap h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n v\u1eadn h\u00e0nh b\u1ec1n b\u1ec9, an to\u00e0n v\u00e0 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t.<\/p>\n<p data-path-to-node=\"41\">N\u1ebfu b\u1ea1n \u0111ang g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c thi\u1ebft k\u1ebf, t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc d\u00e2y d\u1eabn ho\u1eb7c t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t cho h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi c\u1ee7a gia \u0111\u00ecnh v\u00e0 doanh nghi\u1ec7p, h\u00e3y li\u00ean h\u1ec7 ngay v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n chuy\u00ean s\u00e2u mi\u1ec5n ph\u00ed!<\/p>\n<p data-path-to-node=\"43\"><b data-path-to-node=\"43\" data-index-in-node=\"0\">TH\u00d4NG TIN LI\u00caN H\u1ec6 \u0110\u1ed2NG H\u00c0NH C\u00d9NG B\u1ea0N:<\/b><\/p>\n<ul data-path-to-node=\"44\">\n<li>\n<p data-path-to-node=\"44,0,0\"><b data-path-to-node=\"44,0,0\" data-index-in-node=\"0\">Hotline:<\/b> 0357690717<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"44,1,0\"><b data-path-to-node=\"44,1,0\" data-index-in-node=\"0\">Website:<\/b> <a class=\"ng-star-inserted\" href=\"https:\/\/sunnysolar.vn\/en\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahcKEwjJuJi5xbiVAxUAAAAAHQAAAAAQMA\">www.sunnysolar.vn<\/a><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"44,2,0\"><i data-path-to-node=\"44,2,0\" data-index-in-node=\"0\">Sunny Solar &#8211; Gi\u1ea3i ph\u00e1p n\u0103ng l\u01b0\u1ee3ng xanh, b\u1ec1n v\u1eefng cho t\u01b0\u01a1ng lai!<\/i><\/p>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>S\u1ee5t \u00c1p Trong M\u1ea1ch \u0110i\u1ec7n AC V\u00e0 DC: Nguy\u00ean Nh\u00e2n, C\u00f4ng Th\u1ee9c V\u00e0 C\u00e1ch Kh\u1eafc Ph\u1ee5c S\u1ee5t \u00e1p (Voltage Drop) l\u00e0 m\u1ed9t trong nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng ph\u1ed5 bi\u1ebfn nh\u1ea5t trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n n\u00f3i chung v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi n\u00f3i ri\u00eang. N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n k\u1ef9 l\u01b0\u1ee1ng ngay t\u1eeb kh\u00e2u thi\u1ebft k\u1ebf, [&#8230;]","protected":false},"author":1,"featured_media":6157,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-6155","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>S\u1ee5t \u00c1p Trong M\u1ea1ch \u0110i\u1ec7n AC V\u00e0 DC - Sunny Solar<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sunnysolar.vn\/en\/sut-ap-trong-mach-dien-ac-va-dc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u1ee5t \u00c1p Trong M\u1ea1ch \u0110i\u1ec7n AC V\u00e0 DC - Sunny Solar\" \/>\n<meta property=\"og:description\" content=\"S\u1ee5t \u00c1p Trong M\u1ea1ch \u0110i\u1ec7n AC V\u00e0 DC: Nguy\u00ean Nh\u00e2n, C\u00f4ng Th\u1ee9c V\u00e0 C\u00e1ch Kh\u1eafc Ph\u1ee5c S\u1ee5t \u00e1p (Voltage Drop) l\u00e0 m\u1ed9t trong nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng ph\u1ed5 bi\u1ebfn nh\u1ea5t trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n n\u00f3i chung v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi n\u00f3i ri\u00eang. 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