{"id":20880,"date":"2025-12-16T20:27:07","date_gmt":"2025-12-16T12:27:07","guid":{"rendered":"https:\/\/viox.com\/?p=20880"},"modified":"2025-12-16T20:27:57","modified_gmt":"2025-12-16T12:27:57","slug":"how-to-calculate-timer-relay-time-range","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/how-to-calculate-timer-relay-time-range\/","title":{"rendered":"C\u00e1ch t\u00ednh to\u00e1n kho\u1ea3ng th\u1eddi gian ch\u00ednh x\u00e1c cho r\u01a1 le th\u1eddi gian c\u1ee7a b\u1ea1n"},"content":{"rendered":"
\n

\u0110\u1ec3 t\u00ednh to\u00e1n ph\u1ea1m vi th\u1eddi gian ch\u00ednh x\u00e1c cho r\u01a1 le th\u1eddi gian c\u1ee7a b\u1ea1n, h\u00e3y l\u00e0m theo b\u1ed1n b\u01b0\u1edbc thi\u1ebft y\u1ebfu sau: x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u v\u1ec1 th\u1eddi gian x\u1eed l\u00fd th\u1ef1c t\u1ebf c\u1ee7a b\u1ea1n, ch\u1ecdn ch\u1ebf \u0111\u1ed9 th\u1eddi gian th\u00edch h\u1ee3p (tr\u1ec5 b\u1eadt, tr\u1ec5 t\u1eaft, kho\u1ea3ng th\u1eddi gian ho\u1eb7c tu\u1ea7n ho\u00e0n), \u00e1p d\u1ee5ng c\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n \u0111\u1ec3 t\u00ednh \u0111\u1ebfn dung sai v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng, v\u00e0 kh\u1edbp c\u00e1c y\u00eau c\u1ea7u \u0111\u00e3 t\u00ednh to\u00e1n c\u1ee7a b\u1ea1n v\u1edbi c\u00e1c ph\u1ea1m vi th\u1eddi gian th\u01b0\u01a1ng m\u1ea1i c\u00f3 s\u1eb5n. C\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 h\u1ec7 th\u1ed1ng n\u00e0y gi\u00fap r\u01a1 le th\u1eddi gian c\u1ee7a b\u1ea1n mang l\u1ea1i hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady \u0111\u1ed3ng th\u1eddi tr\u00e1nh nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u01b0 kh\u00f4ng \u0111\u1ee7 bi\u00ean \u0111\u1ed9 ho\u1eb7c ch\u1ecdn sai ch\u1ebf \u0111\u1ed9 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb ho\u1eb7c c\u00e1c m\u1ed1i nguy hi\u1ec3m v\u1ec1 an to\u00e0n.<\/p>\n

R\u01a1 le th\u1eddi gian l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec1u khi\u1ec3n quan tr\u1ecdng trong t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p, \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1, h\u1ec7 th\u1ed1ng HVAC v\u00e0 v\u00f4 s\u1ed1 \u1ee9ng d\u1ee5ng kh\u00e1c, trong \u0111\u00f3 th\u1eddi gian ch\u00ednh x\u00e1c quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 tin c\u1eady v\u00e0 an to\u00e0n c\u1ee7a h\u1ec7 th\u1ed1ng. Ch\u1ecdn sai ph\u1ea1m vi th\u1eddi gian\u2014qu\u00e1 h\u1eb9p ho\u1eb7c qu\u00e1 r\u1ed9ng\u2014c\u00f3 th\u1ec3 g\u00e2y ra l\u1ed7i v\u1eadn h\u00e0nh, h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb ho\u1eb7c \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn an to\u00e0n. H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n th\u1ef1c t\u1ebf, c\u00e1c v\u00ed d\u1ee5 chi ti\u1ebft v\u00e0 c\u00e1c b\u1ea3ng tham kh\u1ea3o nhanh \u0111\u1ec3 gi\u00fap c\u00e1c k\u1ef9 s\u01b0 v\u00e0 k\u1ef9 thu\u1eadt vi\u00ean t\u1ef1 tin ch\u1ec9 \u0111\u1ecbnh ph\u1ea1m vi th\u1eddi gian r\u01a1 le th\u1eddi gian cho b\u1ea5t k\u1ef3 \u1ee9ng d\u1ee5ng n\u00e0o.<\/p>\n

\"VIOX
H\u00ecnh 1: VIOX Gi\u1edd Ti\u1ebfp<\/a> \u0111\u01b0\u1ee3c g\u1eafn tr\u00ean m\u1ed9t DIN<\/a>, c\u00f3 m\u1eb7t s\u1ed1 \u0111i\u1ec1u ch\u1ec9nh th\u1eddi gian r\u00f5 r\u00e0ng v\u00e0 \u0111\u00e8n LED b\u00e1o tr\u1ea1ng th\u00e1i.<\/figcaption><\/figure>\n

Hi\u1ec3u v\u1ec1 Ph\u1ea1m Vi Th\u1eddi Gian c\u1ee7a R\u01a1 Le Th\u1eddi Gian<\/h2>\n

M\u1ed9t r\u01a1 le th\u1eddi gian ph\u1ea1m vi th\u1eddi gian<\/strong> \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kho\u1ea3ng \u0111i\u1ec1u ch\u1ec9nh c\u1ee7a c\u00e1c gi\u00e1 tr\u1ecb th\u1eddi gian m\u00e0 thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 cung c\u1ea5p, ch\u1eb3ng h\u1ea1n nh\u01b0 0,1-1 gi\u00e2y, 1-10 gi\u00e2y ho\u1eb7c 1-10 ph\u00fat. \u0110i\u1ec1u n\u00e0y kh\u00e1c v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1eddi gian<\/strong>, m\u00f4 t\u1ea3 m\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c m\u00e0 r\u01a1 le \u0111\u1ea1t \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb th\u1eddi gian \u0111\u00e3 \u0111\u1eb7t.<\/p>\n

Ph\u1ea1m Vi Th\u1eddi Gian so v\u1edbi \u0110\u1ed9 Ch\u00ednh X\u00e1c Th\u1eddi Gian<\/h3>\n

Hi\u1ec3u s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh \u0111\u00fang c\u00e1ch:<\/p>\n\n\n\n\n\n\n\n
\u0110\u1eb7c tr\u01b0ng<\/th>\n\u0110\u1ecbnh ngh\u0129a<\/th>\nV\u00ed d\u1ee5<\/th>\nT\u00e1c \u0110\u1ed9ng \u0110\u1ebfn Vi\u1ec7c L\u1ef1a Ch\u1ecdn<\/th>\n<\/tr>\n<\/thead>\n
Kho\u1ea3ng Th\u1eddi Gian<\/strong><\/td>\nKho\u1ea3ng gi\u00e1 tr\u1ecb th\u1eddi gian \u0111i\u1ec1u ch\u1ec9nh c\u00f3 s\u1eb5n<\/td>\n6-60 gi\u00e2y, 1-10 ph\u00fat<\/td>\nPh\u1ea3i bao g\u1ed3m c\u00e1c y\u00eau c\u1ea7u quy tr\u00ecnh c\u1ee7a b\u1ea1n<\/td>\n<\/tr>\n
\u0110\u1ed9 Ch\u00ednh X\u00e1c Th\u1eddi Gian<\/strong><\/td>\nTh\u1eddi gian th\u1ef1c t\u1ebf g\u1ea7n v\u1edbi gi\u00e1 tr\u1ecb \u0111\u1eb7t nh\u01b0 th\u1ebf n\u00e0o<\/td>\n\u00b15%, \u00b10.5% + 150ms<\/td>\nQuan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng b\u1ed9 h\u00f3a<\/td>\n<\/tr>\n
L\u1eb7p l\u1ea1i<\/strong><\/td>\nT\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a th\u1eddi gian qua nhi\u1ec1u chu k\u1ef3<\/td>\n\u00b10.5%, \u00b11%<\/td>\nQuan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c quy tr\u00ecnh c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Theo IEC 61812-1 (ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf ch\u00ednh cho r\u01a1 le th\u1eddi gian c\u00f4ng nghi\u1ec7p), \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1eddi gian th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng ph\u1ea7n tr\u0103m c\u1ee7a gi\u00e1 tr\u1ecb \u0111\u1eb7t ho\u1eb7c ph\u1ea1m vi to\u00e0n thang \u0111o. V\u00ed d\u1ee5: b\u1ed9 h\u1eb9n gi\u1edd c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c \u00b15% \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh 10 gi\u00e2y ho\u1ea1t \u0111\u1ed9ng trong kho\u1ea3ng t\u1eeb 9,5 \u0111\u1ebfn 10,5 gi\u00e2y.<\/p>\n

Ph\u1ea1m Vi Th\u1eddi Gian Th\u01b0\u01a1ng M\u1ea1i Ph\u1ed5 Bi\u1ebfn<\/h3>\n

R\u01a1 le th\u1eddi gian c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u1edbi c\u00e1c ph\u1ea1m vi th\u1eddi gian ti\u00eau chu\u1ea9n \u0111\u1ec3 bao g\u1ed3m c\u00e1c \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Kho\u1ea3ng Th\u1eddi Gian<\/th>\nGia S\u1ed1 \u0110i\u1ec3n H\u00ecnh<\/th>\n\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/th>\nChuy\u1ec3n Ti\u1ebfp Lo\u1ea1i<\/th>\n<\/tr>\n<\/thead>\n
0,1-1 gi\u00e2y<\/strong><\/td>\n0,01 gi\u00e2y<\/td>\nC\u00e1c quy tr\u00ecnh t\u1ed1c \u0111\u1ed9 cao, xung nhanh, \u0111\u00f3ng g\u00f3i<\/td>\n\u0110a ch\u1ee9c n\u0103ng \u0111i\u1ec7n t\u1eed<\/td>\n<\/tr>\n
1-10 gi\u00e2y<\/strong><\/td>\n0,1 gi\u00e2y<\/td>\nTr\u00ecnh t\u1ef1 m\u00e1y, kh\u1edfi \u0111\u1ed9ng m\u1ec1m \u0111\u1ed9ng c\u01a1<\/td>\n\u0110i\u1ec7n t\u1eed ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n
6-60 gi\u00e2y<\/strong><\/td>\n1 gi\u00e2y<\/td>\n\u0110\u1ed9 tr\u1ec5 kh\u1edfi \u0111\u1ed9ng HVAC, b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1<\/td>\nC\u01a1 \u0111i\u1ec7n\/\u0110i\u1ec7n t\u1eed<\/td>\n<\/tr>\n
1-10 ph\u00fat<\/strong><\/td>\n6 gi\u00e2y ho\u1eb7c 0,1 ph\u00fat<\/td>\n\u0110\u1ed9 tr\u1ec5 \u00e1nh s\u00e1ng, th\u00f4ng gi\u00f3, qu\u1ea1t l\u00e0m m\u00e1t<\/td>\n\u0110i\u1ec7n t\u1eed \u0111a ph\u1ea1m vi<\/td>\n<\/tr>\n
1-10 gi\u1edd<\/strong><\/td>\n6 ph\u00fat ho\u1eb7c 0,1 gi\u1edd<\/td>\nC\u00e1c quy tr\u00ecnh k\u00e9o d\u00e0i, l\u1eadp l\u1ecbch b\u1ea3o tr\u00ec<\/td>\nB\u1ed9 h\u1eb9n gi\u1edd chuy\u00ean d\u1ee5ng<\/td>\n<\/tr>\n
10-300 gi\u1edd<\/strong><\/td>\nBi\u1ebfn<\/td>\nC\u00e1c ho\u1ea1t \u0111\u1ed9ng chu k\u1ef3 m\u1edf r\u1ed9ng, ch\u1ee9c n\u0103ng l\u1ecbch<\/td>\nB\u1ed9 h\u1eb9n gi\u1edd c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0110i\u1ec3m Ch\u00ednh<\/strong>: Y\u00eau c\u1ea7u th\u1eddi gian \u0111\u00e3 t\u00ednh to\u00e1n c\u1ee7a b\u1ea1n ph\u1ea3i n\u1eb1m trong m\u1ed9t ph\u1ea1m vi c\u00f3 s\u1eb5n duy nh\u1ea5t. N\u1ebfu quy tr\u00ecnh c\u1ee7a b\u1ea1n c\u1ea7n \u0111\u1ed9 tr\u1ec5 45 gi\u00e2y, b\u1ea1n kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng r\u01a1 le ph\u1ea1m vi 1-10 gi\u00e2y\u2014b\u1ea1n c\u1ea7n ph\u1ea1m vi 6-60 gi\u00e2y ho\u1eb7c 1-10 ph\u00fat.<\/p>\n

Ph\u01b0\u01a1ng Ph\u00e1p T\u00ednh Ph\u1ea1m Vi Th\u1eddi Gian T\u1eebng B\u01b0\u1edbc<\/h2>\n

B\u01b0\u1edbc 1: X\u00e1c \u0110\u1ecbnh Y\u00eau C\u1ea7u Th\u1eddi Gian Quy Tr\u00ecnh C\u1ee7a B\u1ea1n<\/h3>\n

B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh th\u1eddi gian th\u1ef1c t\u1ebf m\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n c\u1ea7n. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i ph\u00e2n t\u00edch c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a quy tr\u00ecnh ho\u1eb7c thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/p>\n

C\u00e1c c\u00e2u h\u1ecfi c\u1ea7n tr\u1ea3 l\u1eddi:<\/strong><\/p>\n

    \n
  • \u0110\u1ed9 tr\u1ec5 th\u1eddi gian t\u1ed1i thi\u1ec3u c\u1ea7n thi\u1ebft \u0111\u1ec3 v\u1eadn h\u00e0nh an to\u00e0n\/\u0111\u00fang c\u00e1ch l\u00e0 bao nhi\u00eau?<\/li>\n
  • \u0110\u1ed9 tr\u1ec5 t\u1ed1i \u0111a ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c tr\u01b0\u1edbc khi n\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn quy tr\u00ecnh l\u00e0 bao nhi\u00eau?<\/li>\n
  • C\u00f3 nhi\u1ec1u y\u00eau c\u1ea7u v\u1ec1 th\u1eddi gian kh\u00f4ng (b\u1eaft \u0111\u1ea7u, ch\u1ea1y, d\u1eebng)?<\/li>\n
  • Th\u1eddi gian c\u00f3 l\u1eb7p l\u1ea1i theo chu k\u1ef3 hay x\u1ea3y ra m\u1ed9t l\u1ea7n cho m\u1ed7i l\u1ea7n k\u00edch ho\u1ea1t kh\u00f4ng?<\/li>\n<\/ul>\n

    V\u00ed d\u1ee5 1 \u2013 Qu\u1ea1t L\u00e0m M\u00e1t \u0110\u1ed9ng C\u01a1:<\/strong><\/p>\n

    M\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ed9ng c\u01a1 15 kW ch\u1ec9 \u0111\u1ecbnh qu\u1ea1t l\u00e0m m\u00e1t ph\u1ea3i ch\u1ea1y \u201c\u00edt nh\u1ea5t 3 ph\u00fat\u201d sau khi \u0111\u1ed9ng c\u01a1 t\u1eaft \u0111\u1ec3 tr\u00e1nh l\u00e0m h\u1ecfng v\u00f2ng bi.<\/p>\n

      \n
    • Y\u00eau c\u1ea7u c\u01a1 b\u1ea3n<\/strong>: 3 ph\u00fat (180 gi\u00e2y)<\/li>\n
    • Lo\u1ea1i<\/strong>: Tr\u1ec5 t\u1eaft (qu\u1ea1t ti\u1ebfp t\u1ee5c sau khi \u0111\u1ed9ng c\u01a1 d\u1eebng)<\/li>\n<\/ul>\n

      V\u00ed d\u1ee5 2 \u2013 Kh\u1edfi \u0110\u1ed9ng B\u0103ng T\u1ea3i Tu\u1ea7n T\u1ef1:<\/strong><\/p>\n

      B\u0103ng t\u1ea3i A ph\u1ea3i kh\u1edfi \u0111\u1ed9ng, sau \u0111\u00f3 b\u0103ng t\u1ea3i B kh\u1edfi \u0111\u1ed9ng \u201c5-8 gi\u00e2y sau\u201d \u0111\u1ec3 tr\u00e1nh k\u1eb9t s\u1ea3n ph\u1ea9m.<\/p>\n

        \n
      • Y\u00eau c\u1ea7u c\u01a1 b\u1ea3n<\/strong>: Tr\u1ec5 5-8 gi\u00e2y<\/li>\n
      • Lo\u1ea1i<\/strong>: Tr\u1ec5 b\u1eadt (B\u0103ng t\u1ea3i B kh\u1edfi \u0111\u1ed9ng sau khi tr\u1ec5)<\/li>\n<\/ul>\n

        B\u01b0\u1edbc 2: Ch\u1ecdn Ch\u1ebf \u0110\u1ed9 \u0110\u1ecbnh Th\u1eddi Th\u00edch H\u1ee3p<\/h3>\n

        C\u00e1c ch\u1ebf \u0111\u1ed9 \u0111\u1ecbnh th\u1eddi kh\u00e1c nhau ph\u1ee5c v\u1ee5 c\u00e1c ch\u1ee9c n\u0103ng kh\u00e1c nhau. Ch\u1ecdn sai ch\u1ebf \u0111\u1ed9 l\u00e0 m\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn khi\u1ebfn c\u00e1c t\u00ednh to\u00e1n tr\u1edf n\u00ean v\u00f4 ngh\u0129a.<\/p>\n

        \"Technical
        H\u00ecnh 2: S\u01a1 \u0111\u1ed3 th\u1eddi gian k\u1ef9 thu\u1eadt so s\u00e1nh c\u00e1c ch\u1ebf \u0111\u1ed9 Tr\u1ec5 B\u1eadt, Tr\u1ec5 T\u1eaft v\u00e0 Kho\u1ea3ng Th\u1eddi Gian, minh h\u1ecda m\u1ed1i quan h\u1ec7 gi\u1eefa t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o v\u00e0 ti\u1ebfp \u0111i\u1ec3m \u0111\u1ea7u ra.<\/figcaption><\/figure>\n

        B\u1ea3ng Quy\u1ebft \u0110\u1ecbnh Ch\u1ebf \u0110\u1ed9 \u0110\u1ecbnh Th\u1eddi<\/h4>\n\n\n\n\n\n\n\n\n\n
        N\u1ebfu \u1ee8ng D\u1ee5ng C\u1ee7a B\u1ea1n C\u1ea7n\u2026<\/th>\nCh\u1ecdn Ch\u1ebf \u0110\u1ed9<\/th>\nC\u01a1 S\u1edf T\u00ednh To\u00e1n Th\u1eddi Gian<\/th>\n<\/tr>\n<\/thead>\n
        Thi\u1ebft b\u1ecb \u0111\u1ec3 KH\u1edeI \u0110\u1ed8NG sau m\u1ed9t kho\u1ea3ng tr\u1ec5<\/strong> sau khi k\u00edch ho\u1ea1t \u0111\u1ea7u v\u00e0o<\/td>\nTr\u00ean-Ch\u1eadm Tr\u1ec5<\/strong> (Tr\u1ec5 B\u1eadt)<\/td>\nTh\u1eddi gian t\u1eeb \u0111\u1ea7u v\u00e0o B\u1eacT \u0111\u1ebfn \u0111\u1ea7u ra B\u1eacT<\/td>\n<\/tr>\n
        Thi\u1ebft b\u1ecb \u0111\u1ec3 TI\u1ebeP T\u1ee4C ch\u1ea1y<\/strong> trong m\u1ed9t kho\u1ea3ng th\u1eddi gian \u0111\u1eb7t tr\u01b0\u1edbc sau khi \u0111\u1ea7u v\u00e0o d\u1eebng<\/td>\nRa-Ch\u1eadm Tr\u1ec5<\/strong> (Tr\u1ec5 T\u1eaft)<\/td>\nTh\u1eddi gian t\u1eeb \u0111\u1ea7u v\u00e0o T\u1eaeT \u0111\u1ebfn \u0111\u1ea7u ra T\u1eaeT<\/td>\n<\/tr>\n
        Thi\u1ebft b\u1ecb ch\u1ea1y trong m\u1ed9t kho\u1ea3ng th\u1eddi gian c\u1ed1 \u0111\u1ecbnh<\/strong> sau \u0111\u00f3 t\u1ef1 \u0111\u1ed9ng d\u1eebng<\/td>\nB\u1ed9 \u0110\u1ecbnh Th\u1eddi Kho\u1ea3ng Th\u1eddi Gian<\/strong> (M\u1ed9t L\u1ea7n)<\/td>\nTh\u1eddi l\u01b0\u1ee3ng xung B\u1eacT \u0111\u1ea7u ra<\/td>\n<\/tr>\n
        Thi\u1ebft b\u1ecb \u0111\u1ec3 chu k\u1ef3 li\u00ean t\u1ee5c<\/strong> gi\u1eefa tr\u1ea1ng th\u00e1i b\u1eadt v\u00e0 t\u1eaft<\/td>\nB\u1ed9 \u0110\u1ecbnh Th\u1eddi Tu\u1ea7n Ho\u00e0n<\/strong><\/td>\nC\u1ea3 th\u1eddi gian B\u1eacT v\u00e0 th\u1eddi gian T\u1eaeT (c\u00f3 th\u1ec3 c\u1ea7n 2 c\u00e0i \u0111\u1eb7t)<\/td>\n<\/tr>\n
        Kh\u1edfi \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 Sao-Tam gi\u00e1c<\/strong> \u0111i\u1ec1u khi\u1ec3n tr\u00ecnh t\u1ef1<\/td>\nB\u1ed9 \u0110\u1ecbnh Th\u1eddi Sao-Tam Gi\u00e1c<\/strong><\/td>\nTh\u1eddi gian chuy\u1ec3n \u0111\u1ed5i t\u1eeb sao sang tam gi\u00e1c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        L\u1ed7i Ph\u1ed5 Bi\u1ebfn<\/strong>: Nh\u1ea7m l\u1eabn gi\u1eefa tr\u1ec5 b\u1eadt v\u00e0 tr\u1ec5 t\u1eaft. Khi qu\u1ea1t l\u00e0m m\u00e1t ph\u1ea3i ch\u1ea1y \u201c5 ph\u00fat sau khi thi\u1ebft b\u1ecb t\u1eaft,\u201d \u0111\u00f3 l\u00e0 tr\u1ec5 t\u1eaft, kh\u00f4ng ph\u1ea3i tr\u1ec5 b\u1eadt.<\/p>\n

        B\u01b0\u1edbc 3: \u00c1p D\u1ee5ng C\u00e1c H\u1ec7 S\u1ed1 An To\u00e0n v\u00e0 Bi\u00ean \u0110\u1ed9<\/h3>\n

        Kh\u00f4ng ch\u1ec9 \u0111\u1ecbnh d\u1ea3i th\u1eddi gian c\u1ee7a r\u01a1 le th\u1eddi gian kh\u1edbp ch\u00ednh x\u00e1c v\u1edbi y\u00eau c\u1ea7u t\u1ed1i thi\u1ec3u c\u1ee7a b\u1ea1n. C\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf \u0111\u00f2i h\u1ecfi c\u00e1c bi\u00ean \u0111\u1ed9 an to\u00e0n.<\/p>\n

        \"Illustrated
        H\u00ecnh 3: Ph\u00e2n t\u00edch quy tr\u00ecnh t\u00ednh to\u00e1n cho th\u1ea5y c\u00e1ch c\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n cho dung sai, l\u00e3o h\u00f3a v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u00eam v\u00e0o th\u1eddi gian quy tr\u00ecnh c\u01a1 b\u1ea3n.<\/figcaption><\/figure>\n

        C\u00f4ng Th\u1ee9c H\u1ec7 S\u1ed1 An To\u00e0n<\/h4>\n

        C\u00f4ng th\u1ee9c chung \u0111\u1ec3 t\u00ednh to\u00e1n th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt b\u1ed9 \u0111\u1ecbnh th\u1eddi c\u1ea7n thi\u1ebft l\u00e0:<\/p>\n

        D\u1ea3i Th\u1eddi Gian Y\u00eau C\u1ea7u = Th\u1eddi Gian Quy Tr\u00ecnh C\u01a1 B\u1ea3n \u00d7 (1 + H\u1ec7 S\u1ed1 An To\u00e0n)<\/strong><\/p>\n

        Trong \u0111\u00f3 H\u1ec7 S\u1ed1 An To\u00e0n t\u00ednh \u0111\u1ebfn:<\/p>\n

          \n
        • Dung sai th\u1eddi gian<\/strong> (\u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a r\u01a1 le)<\/li>\n
        • C\u00e1c bi\u1ebfn th\u1ec3 m\u00f4i tr\u01b0\u1eddng<\/strong> (\u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9)<\/li>\n
        • L\u00e3o h\u00f3a linh ki\u1ec7n<\/strong> (tr\u00f4i theo n\u0103m th\u00e1ng)<\/li>\n
        • T\u00ednh linh ho\u1ea1t \u0111i\u1ec1u ch\u1ec9nh<\/strong> (tinh ch\u1ec9nh trong qu\u00e1 tr\u00ecnh ch\u1ea1y th\u1eed)<\/li>\n<\/ul>\n

          C\u00e1c H\u1ec7 S\u1ed1 An To\u00e0n \u0110\u01b0\u1ee3c \u0110\u1ec1 Xu\u1ea5t Theo Lo\u1ea1i \u1ee8ng D\u1ee5ng<\/h4>\n\n\n\n\n\n\n\n\n\n
          \u1ee8ng D\u1ee5ng Lo\u1ea1i<\/th>\nH\u1ec7 s\u1ed1 an to\u00e0n<\/th>\nT\u1ed5ng Bi\u00ean \u0110\u1ed9<\/th>\nGi\u1ea3i Th\u00edch<\/th>\n<\/tr>\n<\/thead>\n
          C\u00e1c Ch\u1ee9c N\u0103ng An To\u00e0n Quan Tr\u1ecdng<\/strong><\/td>\n1.3-1.5<\/td>\n+30-50%<\/td>\nKh\u00f4ng th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ed7i th\u1eddi gian; ph\u1ea3i t\u00ednh \u0111\u1ebfn c\u00e1c \u0111i\u1ec1u ki\u1ec7n x\u1ea5u nh\u1ea5t<\/td>\n<\/tr>\n
          B\u1ea3o V\u1ec7 \u0110\u1ed9ng C\u01a1<\/strong><\/td>\n1.2-1.3<\/td>\n+20-30%<\/td>\nH\u1eb1ng s\u1ed1 th\u1eddi gian nhi\u1ec7t thay \u0111\u1ed5i; ng\u0103n ch\u1eb7n c\u00e1c chuy\u1ebfn \u0111i g\u00e2y phi\u1ec1n to\u00e1i ho\u1eb7c b\u1ea3o v\u1ec7 kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7<\/td>\n<\/tr>\n
          \u0110i\u1ec1u Khi\u1ec3n Tu\u1ea7n T\u1ef1<\/strong><\/td>\n1.15-1.25<\/td>\n+15-25%<\/td>\nCho ph\u00e9p \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed3ng b\u1ed9 h\u00f3a; ng\u0103n ng\u1eeba va ch\u1ea1m\/t\u1eafc ngh\u1ebdn<\/td>\n<\/tr>\n
          H\u1ec7 Th\u1ed1ng HVAC\/T\u00f2a Nh\u00e0<\/strong><\/td>\n1.1-1.2<\/td>\n+10-20%<\/td>\nT\u1ed1i \u01b0u h\u00f3a hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng; \u0111i\u1ec1u ch\u1ec9nh s\u1ef1 tho\u1ea3i m\u00e1i c\u1ee7a ng\u01b0\u1eddi s\u1eed d\u1ee5ng<\/td>\n<\/tr>\n
          \u0110\u1ecbnh Th\u1eddi Kh\u00f4ng Quan Tr\u1ecdng<\/strong><\/td>\n1.05-1.1<\/td>\n+5-10%<\/td>\nBi\u00ean \u0111\u1ed9 t\u1ed1i thi\u1ec3u cho \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u1ee7a r\u01a1 le<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Ph\u00e2n T\u00edch Chi Ti\u1ebft Bi\u00ean \u0110\u1ed9<\/h4>\n

          Bi\u00ean \u0110\u1ed9 Dung Sai Linh Ki\u1ec7n:<\/strong><\/p>\n

            \n
          • \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a b\u1ed9 \u0111\u1ecbnh th\u1eddi \u0111i\u1ec7n t\u1eed: th\u01b0\u1eddng l\u00e0 \u00b10,5% \u0111\u1ebfn \u00b15% (theo IEC 61812-1)<\/li>\n
          • Th\u00eam bi\u00ean \u0111\u1ed9 = Th\u1eddi Gian C\u01a1 B\u1ea3n \u00d7 (\u0110\u1ed9 Ch\u00ednh X\u00e1c % \u00d7 2)<\/li>\n<\/ul>\n

            Bi\u00ean \u0110\u1ed9 M\u00f4i Tr\u01b0\u1eddng & L\u00e3o H\u00f3a:<\/strong><\/p>\n

              \n
            • \u1ea2nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9: \u00b10,01-0,03%\/\u00b0C<\/li>\n
            • \u0110\u1ed9 tr\u00f4i c\u1ee7a linh ki\u1ec7n sau 5-10 n\u0103m: +1-2%<\/li>\n
            • \u0110\u1ed9 linh ho\u1ea1t \u0111i\u1ec1u ch\u1ec9nh: 10-20%<\/li>\n<\/ul>\n

              V\u00ed D\u1ee5 T\u00ednh:<\/strong> Qu\u1ea1t l\u00e0m m\u00e1t \u0111\u1ed9ng c\u01a1 (th\u1eddi gian c\u01a1 b\u1ea3n 3 ph\u00fat)<\/p>\n

                \n
              1. Th\u1eddi gian c\u01a1 b\u1ea3n: 180 gi\u00e2y<\/li>\n
              2. \u00c1p d\u1ee5ng h\u1ec7 s\u1ed1 b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1: 180 gi\u00e2y \u00d7 1,25 = 225 gi\u00e2y<\/li>\n
              3. Ch\u1ecdn D\u1ea3i 1-10 ph\u00fat<\/strong>, c\u00e0i \u0111\u1eb7t th\u00e0nh 4 ph\u00fat<\/li>\n<\/ol>\n

                B\u01b0\u1edbc 4: Ch\u1ecdn D\u1ea3i R\u01a1 Le Th\u1eddi Gian Ph\u00f9 H\u1ee3p<\/h3>\n

                Sau khi b\u1ea1n \u0111\u00e3 t\u00ednh to\u00e1n th\u1eddi gian c\u1ea7n thi\u1ebft v\u1edbi c\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n, h\u00e3y ch\u1ecdn m\u1ed9t r\u01a1 le th\u1eddi gian th\u01b0\u01a1ng m\u1ea1i c\u00f3 d\u1ea3i bao g\u1ed3m th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea1n.<\/p>\n

                S\u01a1 \u0110\u1ed3 Quy\u1ebft \u0110\u1ecbnh L\u1ef1a Ch\u1ecdn<\/h4>\n

                N\u1ebfu th\u1eddi gian y\u00eau c\u1ea7u \u0111\u00e3 t\u00ednh to\u00e1n n\u1eb1m trong m\u1ed9t d\u1ea3i ti\u00eau chu\u1ea9n duy nh\u1ea5t:<\/strong><\/p>\n

                \u2713 Ch\u1ecdn d\u1ea3i \u0111\u00f3 (v\u00ed d\u1ee5: y\u00eau c\u1ea7u 219 gi\u00e2y \u2192 d\u1ea3i 1-10 ph\u00fat)<\/p>\n

                N\u1ebfu th\u1eddi gian \u0111\u00e3 t\u00ednh to\u00e1n n\u1eb1m gi\u1eefa hai d\u1ea3i:<\/strong><\/p>\n

                  \n
                • L\u1ef1a ch\u1ecdn 1: Ch\u1ecdn d\u1ea3i cao h\u01a1n ti\u1ebfp theo<\/strong> \u0111\u1ec3 c\u00f3 \u0111\u1ed9 linh ho\u1ea1t \u0111i\u1ec1u ch\u1ec9nh t\u1ed1i \u0111a<\/li>\n
                • L\u1ef1a ch\u1ecdn 2: Ch\u1ecdn d\u1ea3i th\u1ea5p h\u01a1n<\/strong> n\u1ebfu n\u00f3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c m\u1ee9c t\u1ed1i \u0111a c\u1ee7a b\u1ea1n v\u1edbi c\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n<\/li>\n
                • \u0110\u1ec1 xu\u1ea5t: Ch\u1ecdn d\u1ea3i cao h\u01a1n tr\u1eeb khi c\u00f3 c\u00e1c r\u00e0ng bu\u1ed9c v\u1ec1 chi ph\u00ed ho\u1eb7c \u0111\u1ed9 ch\u00ednh x\u00e1c<\/li>\n<\/ul>\n

                  N\u1ebfu th\u1eddi gian \u0111\u00e3 t\u00ednh to\u00e1n v\u01b0\u1ee3t qu\u00e1 c\u00e1c d\u1ea3i ti\u00eau chu\u1ea9n:<\/strong><\/p>\n

                    \n
                  • C\u00e2n nh\u1eafc c\u00e1c b\u1ed9 h\u1eb9n gi\u1edd d\u1ea3i m\u1edf r\u1ed9ng chuy\u00ean d\u1ee5ng (l\u00ean \u0111\u1ebfn 300 gi\u1edd)<\/li>\n
                  • \u0110\u00e1nh gi\u00e1 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n logic kh\u1ea3 tr\u00ecnh (PLC) cho th\u1eddi gian ph\u1ee9c t\u1ea1p<\/li>\n
                  • S\u1eed d\u1ee5ng nhi\u1ec1u b\u1ed9 h\u1eb9n gi\u1edd trong c\u1ea5u h\u00ecnh t\u1ea7ng<\/li>\n<\/ul>\n

                    C\u00e2n Nh\u1eafc V\u1ec1 Kh\u1ea3 N\u0103ng \u0110i\u1ec1u Ch\u1ec9nh v\u00e0 \u0110\u1ed9 Ph\u00e2n Gi\u1ea3i<\/h4>\n\n\n\n\n\n\n\n
                    Lo\u1ea1i D\u1ea3i<\/th>\nNgh\u1ecb quy\u1ebft<\/th>\nT\u1ed1t nh\u1ea5t cho<\/th>\n<\/tr>\n<\/thead>\n
                    Th\u1eddi gian c\u1ed1 \u0111\u1ecbnh<\/strong><\/td>\nKh\u00f4ng c\u00f3<\/td>\nQuy tr\u00ecnh ti\u00eau chu\u1ea9n h\u00f3a<\/td>\n<\/tr>\n
                    \u0110i\u1ec1u ch\u1ec9nh b\u1eb1ng n\u00fam xoay<\/strong><\/td>\n~2-5% c\u1ee7a thang \u0111o<\/td>\n\u0110i\u1ec1u ch\u1ec9nh t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng<\/td>\n<\/tr>\n
                    M\u00e0n h\u00ecnh k\u1ef9 thu\u1eadt s\u1ed1<\/strong><\/td>\n0.1-1%<\/td>\nC\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh x\u00e1c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                    Ph\u00ea b\u00ecnh<\/strong>: M\u1ed9t n\u00fam xoay 1-10 ph\u00fat ch\u1ec9 v\u1edbi 10 v\u1ecb tr\u00ed ch\u1ec9 cho ph\u00e9p c\u00e0i \u0111\u1eb7t 1, 2, 3\u202610 ph\u00fat.<\/p>\n

                    C\u00e1c V\u00ed D\u1ee5 T\u00ednh To\u00e1n Th\u1ef1c T\u1ebf<\/h2>\n

                    V\u00ed d\u1ee5 1: T\u1eaft Ch\u1eadm Qu\u1ea1t L\u00e0m M\u00e1t \u0110\u1ed9ng C\u01a1<\/h3>\n

                    \u1ee8ng d\u1ee5ng<\/strong>: M\u00e1y n\u00e9n c\u00f4ng nghi\u1ec7p c\u00f3 qu\u1ea1t l\u00e0m m\u00e1t ph\u1ea3i ch\u1ea1y sau khi \u0111\u1ed9ng c\u01a1 d\u1eebng.<\/p>\n

                    Y\u00eau c\u1ea7u:<\/strong><\/p>\n

                      \n
                    • Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt nhi\u1ec7t c\u1ee7a \u0111\u1ed9ng c\u01a1: th\u1eddi gian l\u00e0m m\u00e1t t\u1ed1i thi\u1ec3u 180 gi\u00e2y<\/li>\n
                    • M\u00f4i tr\u01b0\u1eddng: nh\u00e0 m\u00e1y b\u1ee5i b\u1eb7m, -10\u00b0C \u0111\u1ebfn +45\u00b0C<\/li>\n
                    • M\u1ee9c \u0111\u1ed9 quan tr\u1ecdng c\u1ee7a \u1ee9ng d\u1ee5ng: Cao (b\u1ea3o v\u1ec7 v\u00f2ng bi)<\/li>\n<\/ul>\n

                      T\u00ednh to\u00e1n:<\/strong><\/p>\n

                        \n
                      1. Th\u1eddi gian quy tr\u00ecnh c\u01a1 b\u1ea3n<\/strong>: 180 gi\u00e2y (3 ph\u00fat)<\/li>\n
                      2. Ch\u1ecdn ch\u1ebf \u0111\u1ed9 h\u1eb9n gi\u1edd<\/strong>: Tr\u1ec5 t\u1eaft (qu\u1ea1t ti\u1ebfp t\u1ee5c sau khi \u0111\u1ed9ng c\u01a1 d\u1eebng)<\/li>\n
                      3. \u00c1p d\u1ee5ng c\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n<\/strong>:\n
                          \n
                        • H\u1ec7 s\u1ed1 b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1: 1,25 (theo b\u1ea3ng)<\/li>\n
                        • 180 gi\u00e2y \u00d7 1,25 = 225 gi\u00e2y (3,75 ph\u00fat)<\/li>\n<\/ul>\n<\/li>\n
                        • Ch\u1ecdn d\u1ea3i ph\u00f9 h\u1ee3p<\/strong>:\n
                            \n
                          • \u0110\u00e3 t\u00ednh to\u00e1n: 225 gi\u00e2y n\u1eb1m trong d\u1ea3i 1-10 ph\u00fat (60-600 gi\u00e2y)<\/li>\n
                          • Ch\u1ecdn: B\u1ed9 h\u1eb9n gi\u1edd d\u1ea3i 1-10 ph\u00fat<\/li>\n<\/ul>\n<\/li>\n
                          • C\u00e0i \u0111\u1eb7t \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/strong>: 4 ph\u00fat (240 gi\u00e2y) \u0111\u1ec3 c\u00f3 bi\u00ean \u0111\u1ed9 tho\u1ea3i m\u00e1i<\/li>\n<\/ol>\n

                            \u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/strong>: R\u01a1 le th\u1eddi gian t\u1eaft ch\u1eadm VIOX, d\u1ea3i 1-10 ph\u00fat, \u0111\u1ed9 ch\u00ednh x\u00e1c \u2264\u00b11%, ngu\u1ed3n \u0111i\u1ec7n \u0111a n\u0103ng AC\/DC<\/p>\n

                            V\u00ed d\u1ee5 2: Kh\u1edfi \u0110\u1ed9ng Thi\u1ebft B\u1ecb Tu\u1ea7n T\u1ef1<\/h3>\n

                            \u1ee8ng d\u1ee5ng<\/strong>: Nh\u00e0 m\u00e1y ch\u1ebf bi\u1ebfn h\u00f3a ch\u1ea5t c\u00f3 ba m\u00e1y b\u01a1m ph\u1ea3i kh\u1edfi \u0111\u1ed9ng tu\u1ea7n t\u1ef1.<\/p>\n

                            Y\u00eau c\u1ea7u:<\/strong><\/p>\n

                              \n
                            • M\u00e1y b\u01a1m 1: kh\u1edfi \u0111\u1ed9ng ngay l\u1eadp t\u1ee9c<\/li>\n
                            • M\u00e1y b\u01a1m 2: kh\u1edfi \u0111\u1ed9ng 8 gi\u00e2y sau m\u00e1y b\u01a1m 1<\/li>\n
                            • M\u00e1y b\u01a1m 3: kh\u1edfi \u0111\u1ed9ng 8 gi\u00e2y sau m\u00e1y b\u01a1m 2<\/li>\n
                            • L\u00fd do: Ng\u0103n ch\u1eb7n s\u1ef1 t\u0103ng \u0111\u1ed9t bi\u1ebfn nhu c\u1ea7u \u0111i\u1ec7n<\/li>\n<\/ul>\n

                              T\u00ednh to\u00e1n:<\/strong><\/p>\n

                                \n
                              1. Th\u1eddi gian quy tr\u00ecnh c\u01a1 b\u1ea3n<\/strong>: 8 gi\u00e2y gi\u1eefa c\u00e1c l\u1ea7n kh\u1edfi \u0111\u1ed9ng<\/li>\n
                              2. Ch\u1ecdn ch\u1ebf \u0111\u1ed9 h\u1eb9n gi\u1edd<\/strong>: B\u1eadt ch\u1eadm (m\u1ed7i m\u00e1y b\u01a1m kh\u1edfi \u0111\u1ed9ng sau khi tr\u1ec5)<\/li>\n
                              3. \u00c1p d\u1ee5ng c\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n<\/strong>:\n
                                  \n
                                • H\u1ec7 s\u1ed1 \u0111i\u1ec1u khi\u1ec3n tu\u1ea7n t\u1ef1: 1,2<\/li>\n
                                • 8 gi\u00e2y \u00d7 1,2 = 9,6 gi\u00e2y<\/li>\n<\/ul>\n<\/li>\n
                                • Ch\u1ecdn d\u1ea3i ph\u00f9 h\u1ee3p<\/strong>:\n
                                    \n
                                  • \u0110\u00e3 t\u00ednh to\u00e1n: 9,6 gi\u00e2y ph\u00f9 h\u1ee3p v\u1edbi d\u1ea3i 1-10 gi\u00e2y<\/li>\n
                                  • Ch\u1ecdn: B\u1ed9 h\u1eb9n gi\u1edd d\u1ea3i 1-10 gi\u00e2y (c\u1ea7n 2 b\u1ed9)<\/li>\n<\/ul>\n<\/li>\n
                                  • C\u00e0i \u0111\u1eb7t \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/strong>: 10 gi\u00e2y cho m\u1ed7i l\u1ea7n tr\u1ec5<\/li>\n<\/ol>\n

                                    \u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/strong>: Hai r\u01a1le th\u1eddi gian tr\u1ec5 VIOX, d\u1ea3i 1-10 gi\u00e2y, \u0111i\u1ec1u ch\u1ec9nh k\u1ef9 thu\u1eadt s\u1ed1, \u0111\u1ed9 l\u1eb7p l\u1ea1i \u2264\u00b10.5%<\/p>\n

                                    V\u00ed d\u1ee5 3: H\u1ec7 th\u1ed1ng t\u01b0\u1edbi ti\u00eau tu\u1ea7n ho\u00e0n<\/h3>\n

                                    \u1ee8ng d\u1ee5ng<\/strong>: B\u1ed9 \u0111i\u1ec1u khi\u1ec3n v\u00f9ng t\u01b0\u1edbi ti\u00eau n\u00f4ng nghi\u1ec7p.<\/p>\n

                                    Y\u00eau c\u1ea7u:<\/strong><\/p>\n

                                      \n
                                    • Th\u1eddi gian B\u1eacT v\u00f9ng: 12 ph\u00fat (l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc)<\/li>\n
                                    • Th\u1eddi gian T\u1eaeT v\u00f9ng: 48 ph\u00fat (\u0111\u1ed9 h\u1ea5p th\u1ee5 c\u1ee7a \u0111\u1ea5t)<\/li>\n
                                    • Chu k\u1ef3 li\u00ean t\u1ee5c trong th\u1eddi gian t\u01b0\u1edbi ti\u00eau<\/li>\n<\/ul>\n

                                      T\u00ednh to\u00e1n:<\/strong><\/p>\n

                                        \n
                                      1. Th\u1eddi gian quy tr\u00ecnh c\u01a1 b\u1ea3n<\/strong>: 12 ph\u00fat B\u1eacT, 48 ph\u00fat T\u1eaeT<\/li>\n
                                      2. Ch\u1ecdn ch\u1ebf \u0111\u1ed9 h\u1eb9n gi\u1edd<\/strong>: B\u1ed9 \u0111\u1ecbnh th\u1eddi tu\u1ea7n ho\u00e0n (b\u1eadt\/t\u1eaft kh\u00f4ng \u0111\u1ed1i x\u1ee9ng)<\/li>\n
                                      3. \u00c1p d\u1ee5ng c\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n<\/strong>:\n
                                          \n
                                        • \u1ee8ng d\u1ee5ng kh\u00f4ng quan tr\u1ecdng: h\u1ec7 s\u1ed1 1.1<\/li>\n
                                        • B\u1eacT: 12 ph\u00fat \u00d7 1.1 = 13.2 ph\u00fat<\/li>\n
                                        • T\u1eaeT: 48 ph\u00fat \u00d7 1.1 = 52.8 ph\u00fat<\/li>\n<\/ul>\n<\/li>\n
                                        • Ch\u1ecdn d\u1ea3i ph\u00f9 h\u1ee3p<\/strong>:\n
                                            \n
                                          • C\u1ea3 hai gi\u00e1 tr\u1ecb c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi d\u1ea3i 1-10 ph\u00fat kh\u00f4ng? Kh\u00f4ng (52.8 > 60 ph\u00fat)<\/li>\n
                                          • C\u1ea7n: D\u1ea3i 1-10 gi\u1edd cho th\u1eddi gian T\u1eaeT<\/li>\n
                                          • Gi\u1ea3i ph\u00e1p thay th\u1ebf: S\u1eed d\u1ee5ng d\u1ea3i 10-100 ph\u00fat n\u1ebfu c\u00f3<\/li>\n<\/ul>\n<\/li>\n
                                          • C\u00e0i \u0111\u1eb7t \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/strong>: B\u1eacT = 15 ph\u00fat, T\u1eaeT = 1 gi\u1edd (tho\u1ea3 hi\u1ec7p cho d\u1ea3i ti\u00eau chu\u1ea9n)<\/li>\n<\/ol>\n

                                            \u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/strong>: R\u01a1le th\u1eddi gian tu\u1ea7n ho\u00e0n VIOX v\u1edbi d\u1ea3i \u0111i\u1ec1u ch\u1ec9nh k\u00e9p, ho\u1eb7c b\u1ed9 \u0111\u1ecbnh th\u1eddi \u0111a ch\u1ee9c n\u0103ng v\u1edbi c\u00e0i \u0111\u1eb7t th\u1eddi gian B\u1eacT\/T\u1eaeT ri\u00eang bi\u1ec7t<\/p>\n

                                            \"Flowchart
                                            H\u00ecnh 4: L\u01b0u \u0111\u1ed3 chi ti\u1ebft: H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 t\u00ednh to\u00e1n c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c c\u1ee7a r\u01a1le th\u1eddi gian d\u1ef1a tr\u00ean c\u00e1c y\u00eau c\u1ea7u quy tr\u00ecnh v\u00e0 c\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n.<\/figcaption><\/figure>\n

                                            C\u00e1c l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi ch\u1ecdn d\u1ea3i th\u1eddi gian<\/h2>\n

                                            Tr\u00e1nh nh\u1eefng c\u1ea1m b\u1eaby n\u00e0y \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t r\u01a1le th\u1eddi gian \u0111\u00e1ng tin c\u1eady:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
                                            Sai l\u1ea7m<\/th>\nH\u1eadu qu\u1ea3<\/th>\nGi\u1ea3i ph\u00e1p<\/th>\n<\/tr>\n<\/thead>\n
                                            Ch\u1ec9 \u0111\u1ecbnh th\u1eddi gian t\u1ed1i thi\u1ec3u ch\u00ednh x\u00e1c m\u00e0 kh\u00f4ng c\u00f3 bi\u00ean \u0111\u1ed9<\/strong><\/td>\nQuy tr\u00ecnh th\u1ea5t b\u1ea1i khi r\u01a1le ho\u1ea1t \u0111\u1ed9ng \u1edf gi\u1edbi h\u1ea1n dung sai th\u1ea5p h\u01a1n (-5%)<\/td>\nLu\u00f4n th\u00eam h\u1ec7 s\u1ed1 an to\u00e0n t\u1ed1i thi\u1ec3u 10%<\/td>\n<\/tr>\n
                                            Ch\u1ecdn sai ch\u1ebf \u0111\u1ed9 \u0111\u1ecbnh th\u1eddi<\/strong> (tr\u1ec5 b\u1eadt thay v\u00ec tr\u1ec5 t\u1eaft)<\/td>\nThi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng ng\u01b0\u1ee3c l\u1ea1i v\u1edbi d\u1ef1 \u0111\u1ecbnh; h\u1ec7 th\u1ed1ng ho\u00e0n to\u00e0n th\u1ea5t b\u1ea1i<\/td>\nPh\u00e2n t\u00edch c\u1ea9n th\u1eadn khi n\u00e0o \u0111\u1ea7u ra n\u00ean k\u00edch ho\u1ea1t\/h\u1ee7y k\u00edch ho\u1ea1t<\/td>\n<\/tr>\n
                                            B\u1ecf qua \u0111\u1ed9 ph\u00e2n gi\u1ea3i \u0111i\u1ec1u ch\u1ec9nh<\/strong><\/td>\nKh\u00f4ng th\u1ec3 \u0111\u1eb7t th\u1eddi gian y\u00eau c\u1ea7u ch\u00ednh x\u00e1c; bu\u1ed9c ph\u1ea3i s\u1eed d\u1ee5ng gi\u00e1 tr\u1ecb g\u1ea7n \u0111\u00fang<\/td>\nKi\u1ec3m tra b\u1ea3ng d\u1eef li\u1ec7u \u0111\u1ec3 bi\u1ebft \u0111\u1ed9 ph\u00e2n gi\u1ea3i th\u1ef1c t\u1ebf (v\u00ed d\u1ee5: m\u1eb7t s\u1ed1 10 v\u1ecb tr\u00ed = c\u00e1c b\u01b0\u1edbc 10%)<\/td>\n<\/tr>\n
                                            B\u1ecf qua c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng<\/strong><\/td>\nTh\u1eddi gian tr\u00f4i \u0111\u00e1ng k\u1ec3 trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t<\/td>\nTh\u00eam bi\u00ean \u0111\u1ed9 2-3% cho m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p, x\u00e1c minh ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/td>\n<\/tr>\n
                                            S\u1eed d\u1ee5ng d\u1ea3i qu\u00e1 l\u1edbn cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh x\u00e1c<\/strong><\/td>\n\u0110\u1ed9 ph\u00e2n gi\u1ea3i v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00e9m \u1edf \u0111\u1ea7u d\u01b0\u1edbi c\u1ee7a d\u1ea3i<\/td>\nCh\u1ecdn d\u1ea3i nh\u1ecf nh\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u c\u00f3 bi\u00ean \u0111\u1ed9<\/td>\n<\/tr>\n
                                            Qu\u00ean m\u1ea5t s\u1ef1 l\u00e3o h\u00f3a c\u1ee7a linh ki\u1ec7n<\/strong><\/td>\nB\u1ed9 \u0111\u1ecbnh th\u1eddi tr\u00f4i ra kh\u1ecfi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt sau 3-5 n\u0103m<\/td>\nTh\u00eam bi\u00ean \u0111\u1ed9 l\u00e3o h\u00f3a 2% cho c\u00e1c c\u00e0i \u0111\u1eb7t d\u00e0i h\u1ea1n<\/td>\n<\/tr>\n
                                            Kh\u00f4ng xem x\u00e9t qu\u00e1 \u0111\u1ed9 kh\u1edfi \u0111\u1ed9ng\/d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng<\/strong><\/td>\nTh\u1eddi gian c\u1ee7a r\u01a1le b\u1eaft \u0111\u1ea7u tr\u01b0\u1edbc khi thi\u1ebft b\u1ecb th\u1ef1c s\u1ef1 \u1ed5n \u0111\u1ecbnh<\/td>\nTh\u00eam th\u1eddi gian \u1ed5n \u0111\u1ecbnh qu\u00e1 \u0111\u1ed9 v\u00e0o y\u00eau c\u1ea7u c\u01a1 b\u1ea3n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                            V\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u1ec1 l\u1ef1a ch\u1ecdn sai ch\u1ebf \u0111\u1ed9:<\/strong><\/p>\n

                                            M\u1ed9t k\u1ef9 s\u01b0 \u0111\u00e3 ch\u1ec9 \u0111\u1ecbnh m\u1ed9t b\u1ed9 \u0111\u1ecbnh th\u1eddi tr\u1ec5 b\u1eadt cho m\u1ed9t qu\u1ea1t th\u00f4ng gi\u00f3 c\u1ea7n \u201cch\u1ea1y trong 5 ph\u00fat sau khi qu\u00e1 tr\u00ecnh d\u1eebng l\u1ea1i.\u201d K\u1ebft qu\u1ea3: Qu\u1ea1t s\u1ebd b\u1eaft \u0111\u1ea7u 5 ph\u00fat sau khi qu\u00e1 tr\u00ecnh b\u1eaft \u0111\u1ea7u (tr\u1ec5 b\u1eadt), sau \u0111\u00f3 ch\u1ea1y li\u00ean t\u1ee5c. L\u1ef1a ch\u1ecdn \u0111\u00fang l\u00e0 tr\u1ec5 t\u1eaft, gi\u00fap qu\u1ea1t ti\u1ebfp t\u1ee5c ch\u1ea1y trong 5 ph\u00fat sau khi qu\u00e1 tr\u00ecnh d\u1eebng l\u1ea1i.<\/p>\n

                                            Tham kh\u1ea3o nhanh th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt d\u1ea3i th\u1eddi gian<\/h2>\n

                                            Theo \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                                            Danh m\u1ee5c \u1ee9ng d\u1ee5ng<\/th>\nD\u1ea3i th\u1eddi gian c\u1ea7n thi\u1ebft \u0111i\u1ec3n h\u00ecnh<\/th>\nD\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/th>\nCh\u1ebf \u0111\u1ed9 \u0111\u1ecbnh th\u1eddi<\/th>\nC\u00e2n Nh\u1eafc Quan Tr\u1ecdng<\/th>\n<\/tr>\n<\/thead>\n
                                            Kh\u1edfi \u0111\u1ed9ng m\u1ec1m \u0111\u1ed9ng c\u01a1<\/strong><\/td>\n5-30 gi\u00e2y<\/td>\n1-10 gi\u00e2y ho\u1eb7c 6-60 gi\u00e2y<\/td>\nTr\u1ec5 b\u1eadt<\/td>\nPh\u00f9 h\u1ee3p v\u1edbi qu\u00e1n t\u00ednh \u0111\u1ed9ng c\u01a1; \u0111\u1ed9ng c\u01a1 l\u1edbn h\u01a1n c\u1ea7n th\u1eddi gian d\u00e0i h\u01a1n<\/td>\n<\/tr>\n
                                            L\u00e0m m\u00e1t\/Ch\u1ea1y ti\u1ebfp \u0111\u1ed9ng c\u01a1<\/strong><\/td>\n2-10 ph\u00fat<\/td>\n1-10 ph\u00fat<\/td>\nTr\u1ec5 t\u1eaft<\/td>\nD\u1ef1a tr\u00ean h\u1eb1ng s\u1ed1 th\u1eddi gian nhi\u1ec7t<\/td>\n<\/tr>\n
                                            Chuy\u1ec3n \u0111\u1ed5i Sao-Tam gi\u00e1c<\/strong><\/td>\n3-15 gi\u00e2y<\/td>\n1-10 gi\u00e2y<\/td>\nSao-tam gi\u00e1c (chuy\u00ean d\u1ee5ng)<\/td>\nTheo th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ed9ng c\u01a1<\/td>\n<\/tr>\n
                                            Kh\u1edfi \u0111\u1ed9ng tu\u1ea7n t\u1ef1 HVAC<\/strong><\/td>\n10-60 gi\u00e2y<\/td>\n6-60 gi\u00e2y<\/td>\nTr\u1ec5 b\u1eadt<\/td>\nSo le \u0111\u1ec3 gi\u1ea3m nhu c\u1ea7u<\/td>\n<\/tr>\n
                                            T\u1eaft tr\u1ec5 chi\u1ebfu s\u00e1ng<\/strong><\/td>\n30 gi\u00e2y \u2013 5 ph\u00fat<\/td>\n1-10 ph\u00fat<\/td>\nTr\u1ec5 t\u1eaft<\/td>\nC\u00e1c quy \u0111\u1ecbnh v\u1ec1 n\u0103ng l\u01b0\u1ee3ng v\u00e0 s\u1edf th\u00edch c\u1ee7a ng\u01b0\u1eddi d\u00f9ng<\/td>\n<\/tr>\n
                                            Kh\u00f3a li\u00ean \u0111\u1ed9ng an to\u00e0n<\/strong><\/td>\n0.5-5 gi\u00e2y<\/td>\n0.1-1 gi\u00e2y ho\u1eb7c 1-10 gi\u00e2y<\/td>\nKho\u1ea3ng th\u1eddi gian ho\u1eb7c tr\u1ec5 b\u1eadt<\/td>\nPh\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n (IEC 61508)<\/td>\n<\/tr>\n
                                            \u0110i\u1ec1u khi\u1ec3n b\u0103ng t\u1ea3i tu\u1ea7n t\u1ef1<\/strong><\/td>\n3-20 gi\u00e2y<\/td>\n1-10 gi\u00e2y<\/td>\nTr\u1ec5 b\u1eadt<\/td>\nD\u1ef1a tr\u00ean th\u1eddi gian chuy\u1ec3n s\u1ea3n ph\u1ea9m<\/td>\n<\/tr>\n
                                            Lu\u00e2n phi\u00ean b\u01a1m<\/strong><\/td>\n1-24 gi\u1edd<\/td>\n1-10 gi\u1edd ho\u1eb7c c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh<\/td>\nTu\u1ea7n ho\u00e0n<\/td>\nPh\u00e2n ph\u1ed1i hao m\u00f2n \u0111\u1ec1u<\/td>\n<\/tr>\n
                                            Th\u1eddi gian ng\u00e2m quy tr\u00ecnh<\/strong><\/td>\n5-60 ph\u00fat<\/td>\n1-10 ph\u00fat ho\u1eb7c 1-10 gi\u1edd<\/td>\nKho\u1ea3ng th\u1eddi gian<\/td>\nPh\u1ee5 thu\u1ed9c v\u00e0o c\u00f4ng th\u1ee9c; s\u1eed d\u1ee5ng \u0111i\u1ec1u ch\u1ec9nh k\u1ef9 thu\u1eadt s\u1ed1<\/td>\n<\/tr>\n
                                            C\u00e1c v\u00f9ng t\u01b0\u1edbi ti\u00eau<\/strong><\/td>\n5-30 ph\u00fat B\u1eacT, 15-120 ph\u00fat T\u1eaeT<\/td>\n1-10 gi\u1edd v\u1edbi c\u00e0i \u0111\u1eb7t k\u00e9p<\/td>\nTu\u1ea7n ho\u00e0n<\/td>\nLo\u1ea1i \u0111\u1ea5t v\u00e0 y\u00eau c\u1ea7u c\u1ee7a c\u00e2y tr\u1ed3ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                            H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn nhanh<\/h3>\n

                                            Quy tr\u00ecnh ti\u00eau chu\u1ea9n:<\/strong><\/p>\n

                                              \n
                                            1. T\u00ednh to\u00e1n th\u1eddi gian c\u01a1 b\u1ea3n \u2192 th\u00eam h\u1ec7 s\u1ed1 an to\u00e0n 20% \u2192 ch\u1ecdn ph\u1ea1m vi ti\u00eau chu\u1ea9n ti\u1ebfp theo<\/li>\n
                                            2. X\u00e1c minh \u0111\u1ed9 ch\u00ednh x\u00e1c \u2264\u00b15% (chung) ho\u1eb7c \u2264\u00b11% (quan tr\u1ecdng)<\/li>\n<\/ol>\n

                                              An to\u00e0n-Quan tr\u1ecdng:<\/strong><\/p>\n

                                                \n
                                              • Th\u00eam h\u1ec7 s\u1ed1 an to\u00e0n 30-50%<\/li>\n
                                              • Ch\u1ec9 \u0111\u1ecbnh \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 l\u1eb7p l\u1ea1i \u2264\u00b11%<\/li>\n
                                              • T\u00e0i li\u1ec7u theo ISO 13849 ho\u1eb7c IEC 61508<\/li>\n<\/ul>\n

                                                Nh\u1eefng C\u00e2u H\u1ecfi Th\u01b0\u1eddng<\/h2>\n

                                                T\u00f4i n\u00ean th\u00eam bao nhi\u00eau h\u1ec7 s\u1ed1 an to\u00e0n v\u00e0o t\u00ednh to\u00e1n r\u01a1 le th\u1eddi gian c\u1ee7a m\u00ecnh?<\/h3>\n

                                                \u0110\u1ed1i v\u1edbi c\u00e1c ch\u1ee9c n\u0103ng an to\u00e0n quan tr\u1ecdng, h\u00e3y th\u00eam 30-50%. B\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 c\u1ea7n 20-30%. \u0110i\u1ec1u khi\u1ec3n tu\u1ea7n t\u1ef1 v\u00e0 HVAC y\u00eau c\u1ea7u 15-25%. Ngay c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng kh\u00f4ng quan tr\u1ecdng c\u0169ng n\u00ean c\u00f3 \u00edt nh\u1ea5t bi\u00ean \u0111\u1ed9 10%.<\/p>\n

                                                N\u1ebfu y\u00eau c\u1ea7u th\u1eddi gian c\u1ee7a t\u00f4i n\u1eb1m gi\u1eefa hai kho\u1ea3ng th\u1eddi gian h\u1eb9n gi\u1edd c\u00f3 s\u1eb5n th\u00ec sao?<\/h3>\n

                                                Ch\u1ecdn d\u1ea3i cao h\u01a1n k\u1ebf ti\u1ebfp. N\u1ebfu b\u1ea1n t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c 35 gi\u00e2y (v\u1edbi sai s\u1ed1), h\u00e3y ch\u1ecdn d\u1ea3i 6-60 gi\u00e2y thay v\u00ec d\u1ea3i 1-10 gi\u00e2y \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c s\u1ef1 linh ho\u1ea1t \u0111i\u1ec1u ch\u1ec9nh t\u1ed1i \u0111a.<\/p>\n

                                                T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng r\u01a1 le th\u1eddi gian v\u1edbi d\u1ea3i ho\u1ea1t \u0111\u1ed9ng r\u1ed9ng h\u01a1n \u0111\u1ec3 c\u00f3 t\u00ednh linh ho\u1ea1t t\u1ed1t h\u01a1n kh\u00f4ng?<\/h3>\n

                                                \u0110\u00fang v\u1eady, nh\u01b0ng d\u1ea3i \u0111o r\u1ed9ng h\u01a1n c\u00f3 th\u1ec3 c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i th\u1ea5p h\u01a1n. V\u00ed d\u1ee5, b\u1ed9 h\u1eb9n gi\u1edd 1-10 ph\u00fat c\u00f3 th\u1ec3 cung c\u1ea5p \u0111\u1ed9 ch\u00ednh x\u00e1c 0,1 ph\u00fat, trong khi ki\u1ec3u m\u00e1y \u0111a d\u1ea3i c\u00f3 th\u1ec3 ch\u1ec9 cung c\u1ea5p \u0111\u1ed9 ch\u00ednh x\u00e1c 6 gi\u00e2y. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c cao, h\u00e3y ch\u1ecdn d\u1ea3i \u0111o h\u1eb9p nh\u1ea5t bao g\u1ed3m y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n.<\/p>\n

                                                T\u00ednh to\u00e1n r\u01a1 le th\u1eddi gian c\u1ea7n ch\u00ednh x\u00e1c \u0111\u1ebfn m\u1ee9c n\u00e0o?<\/h3>\n

                                                \u00c1p d\u1ee5ng s\u1ef1 ch\u1eb7t ch\u1ebd t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng. C\u00e1c \u1ee9ng d\u1ee5ng an to\u00e0n \u0111\u00f2i h\u1ecfi c\u00e1c t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c ghi l\u1ea1i theo ti\u00eau chu\u1ea9n IEC 61508. B\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 y\u00eau c\u1ea7u ph\u00e2n t\u00edch nhi\u1ec7t. C\u00e1c \u1ee9ng d\u1ee5ng chung c\u1ea7n c\u00e1c t\u00ednh to\u00e1n c\u01a1 b\u1ea3n v\u1edbi h\u1ec7 s\u1ed1 an to\u00e0n 20%.<\/p>\n

                                                Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0o \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u1eddi gian t\u00e1c \u0111\u1ed9ng th\u1ef1c t\u1ebf trong c\u00e1c h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t th\u1ef1c t\u1ebf?<\/h3>\n

                                                Nhi\u1ec7t \u0111\u1ed9 (\u00b10,01-0,03%\/\u00b0C), bi\u1ebfn \u0111\u1ed9ng \u0111i\u1ec7n \u00e1p ngu\u1ed3n (\u00b11-2%), l\u00e3o h\u00f3a linh ki\u1ec7n (+1-2% trong 5-10 n\u0103m) v\u00e0 EMI trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec5u \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u1eddi gian. C\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n h\u1ea5p th\u1ee5 nh\u1eefng bi\u1ebfn \u0111\u1ed9ng n\u00e0y.<\/p>\n

                                                L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ednh to\u00e1n kho\u1ea3ng th\u1eddi gian cho b\u1ed9 h\u1eb9n gi\u1edd tu\u1ea7n ho\u00e0n?<\/h3>\n

                                                T\u00ednh to\u00e1n th\u1eddi gian B\u1eacT v\u00e0 T\u1eaeT ri\u00eang bi\u1ec7t, \u00e1p d\u1ee5ng h\u1ec7 s\u1ed1 an to\u00e0n 10-20% cho m\u1ed7i th\u1eddi gian. Ch\u1ec9 \u0111\u1ecbnh b\u1ed9 \u0111\u1ecbnh th\u1eddi chu k\u1ef3 kh\u00f4ng \u0111\u1ed1i x\u1ee9ng ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 \u0111\u1ecbnh th\u1eddi tr\u1ec5 B\u1eacT v\u00e0 tr\u1ec5 T\u1eaeT ri\u00eang bi\u1ec7t m\u1eafc n\u1ed1i ti\u1ebfp.<\/p>\n

                                                T\u00f4i c\u00f3 n\u00ean t\u00ednh \u0111\u1ebfn th\u1eddi gian chuy\u1ec3n m\u1ea1ch ti\u1ebfp x\u00fac kh\u00f4ng?<\/h3>\n

                                                Th\u00f4ng th\u01b0\u1eddng l\u00e0 kh\u00f4ng. Th\u1eddi gian chuy\u1ec3n m\u1ea1ch c\u1ee7a ti\u1ebfp \u0111i\u1ec3m (5-20ms) l\u00e0 kh\u00f4ng \u0111\u00e1ng k\u1ec3 so v\u1edbi kho\u1ea3ng th\u1eddi gian t\u1eeb gi\u00e2y \u0111\u1ebfn gi\u1edd. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng t\u1ed1c \u0111\u1ed9 cao (kho\u1ea3ng 0,1-1 gi\u00e2y), h\u00e3y ki\u1ec3m tra th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ho\u1eb7c s\u1eed d\u1ee5ng \u0111\u1ea7u ra b\u00e1n d\u1eabn (th\u1eddi gian chuy\u1ec3n m\u1ea1ch <1ms).<\/p>\n

                                                K\u1ebft lu\u1eadn<\/h2>\n

                                                T\u00ednh to\u00e1n ph\u1ea1m vi th\u1eddi gian ch\u00ednh x\u00e1c cho r\u01a1le th\u1eddi gian c\u1ee7a b\u1ea1n l\u00e0 m\u1ed9t quy tr\u00ecnh c\u00f3 h\u1ec7 th\u1ed1ng, \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady v\u00e0 ng\u0103n ng\u1eeba c\u00e1c sai l\u1ea7m t\u1ed1n k\u00e9m. Ph\u01b0\u01a1ng ph\u00e1p b\u1ed1n b\u01b0\u1edbc\u2014x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u v\u1ec1 th\u1eddi gian c\u1ee7a quy tr\u00ecnh, ch\u1ecdn ch\u1ebf \u0111\u1ed9 th\u1eddi gian th\u00edch h\u1ee3p, \u00e1p d\u1ee5ng c\u00e1c h\u1ec7 s\u1ed1 an to\u00e0n \u0111\u1ea7y \u0111\u1ee7 v\u00e0 kh\u1edbp v\u1edbi c\u00e1c ph\u1ea1m vi th\u01b0\u01a1ng m\u1ea1i\u2014cung c\u1ea5p m\u1ed9t khu\u00f4n kh\u1ed5 cho c\u00e1c quy\u1ebft \u0111\u1ecbnh \u0111\u1eb7c t\u1ea3 t\u1ef1 tin.<\/p>\n

                                                H\u00e3y nh\u1edb r\u1eb1ng c\u00e1c bi\u00ean \u0111\u1ed9 an to\u00e0n kh\u00f4ng ph\u1ea3i l\u00e0 nh\u1eefng th\u1ee9 xa x\u1ec9 t\u00f9y ch\u1ecdn m\u00e0 l\u00e0 c\u00e1c \u0111i\u1ec1u kho\u1ea3n thi\u1ebft y\u1ebfu cho c\u00e1c bi\u1ebfn th\u1ec3 th\u1ef1c t\u1ebf v\u1ec1 dung sai, m\u00f4i tr\u01b0\u1eddng v\u00e0 l\u00e3o h\u00f3a. M\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt r\u01a1le th\u1eddi gian \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n \u0111\u00fang c\u00e1ch s\u1ebd t\u00ednh \u0111\u1ebfn c\u00e1c \u0111i\u1ec1u ki\u1ec7n x\u1ea5u nh\u1ea5t \u0111\u1ed3ng th\u1eddi cung c\u1ea5p s\u1ef1 linh ho\u1ea1t \u0111i\u1ec1u ch\u1ec9nh trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh v\u00e0 ch\u1ea1y th\u1eed.<\/p>\n

                                                \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng, lu\u00f4n tham kh\u1ea3o th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t, x\u00e1c minh \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 x\u1ebfp h\u1ea1ng \u0111\u1ed9 l\u1eb7p l\u1ea1i theo IEC 61812-1 v\u00e0 ghi l\u1ea1i c\u00e1c t\u00ednh to\u00e1n c\u1ee7a b\u1ea1n \u0111\u1ec3 tham kh\u1ea3o trong t\u01b0\u01a1ng lai. R\u01a1le th\u1eddi gian VIOX cung c\u1ea5p m\u1ed9t lo\u1ea1t c\u00e1c ph\u1ea1m vi th\u1eddi gian to\u00e0n di\u1ec7n, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 c\u00e1c t\u00f9y ch\u1ecdn l\u1eafp \u0111\u1eb7t linh ho\u1ea1t \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u t\u1ef1 \u0111\u1ed9ng h\u00f3a, th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p \u0111a d\u1ea1ng.<\/p>\n

                                                Khi nghi ng\u1edd, h\u00e3y sai s\u00f3t v\u1ec1 ph\u00eda bi\u00ean \u0111\u1ed9 an to\u00e0n l\u1edbn h\u01a1n v\u00e0 ch\u1ecdn c\u00e1c th\u00e0nh ph\u1ea7n ch\u1ea5t l\u01b0\u1ee3ng t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 uy t\u00edn. Chi ph\u00ed b\u1ed5 sung nh\u1ecf kh\u00f4ng \u0111\u00e1ng k\u1ec3 so v\u1edbi chi ph\u00ed th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng, h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb ho\u1eb7c c\u00e1c s\u1ef1 c\u1ed1 an to\u00e0n do c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt r\u01a1le th\u1eddi gian kh\u00f4ng ph\u00f9 h\u1ee3p g\u00e2y ra.<\/p>\n<\/div>\n

                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>\n
                                                <\/div>","protected":false},"excerpt":{"rendered":"

                                                To calculate the correct time range for your timer relay, follow these four essential steps: identify your actual process timing requirements, select the appropriate timing mode (on-delay, off-delay, interval, or cyclic), apply safety factors to account for tolerance and environmental conditions, and match your calculated requirements to available commercial time ranges. This systematic approach helps […]<\/p>\n","protected":false},"author":1,"featured_media":20881,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-20880","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/20880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/comments?post=20880"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/20880\/revisions"}],"predecessor-version":[{"id":20882,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/20880\/revisions\/20882"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/20881"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=20880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=20880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=20880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}