<\/span><\/h2>\n\u0110\u1ea7u ti\u00ean ch\u00fang ta h\u00e3y n\u00f3i v\u1ec1 nguy\u00ean l\u00fd d\u1eadp t\u1eaft h\u1ed3 quang c\u1ee7a ng\u1eaft m\u1ea1ch<\/b><\/strong>. Khi c\u00e1c ti\u1ebfp \u0111i\u1ec3m trong m\u1ea1ch s\u1eafp m\u1edf s\u1ebd xu\u1ea5t hi\u1ec7n h\u1ed3 quang. V\u00f2ng cung n\u00e0y l\u00e0 m\u1ed9t r\u1eafc r\u1ed1i l\u1edbn. \u0110\u00f3 l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng ph\u00f3ng \u0111i\u1ec7n kh\u00ed c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n cao. N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t s\u1ebd g\u00e2y ra nh\u1eefng tai n\u1ea1n m\u1ea5t an to\u00e0n nghi\u00eam tr\u1ecdng. V\u1eady c\u01a1 ch\u1ebf n\u00e0o trong ng\u1eaft m\u1ea1ch<\/b><\/strong>\u00a0\u0111ang l\u00e0m vi\u1ec7c \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi v\u00f2ng cung?<\/p>\n<\/span>\u00a0<\/span><\/h5>\n<\/span>1. Danh b\u1ea1<\/strong><\/span><\/h5>\nM\u1ed9t s\u1ed1 nh\u00e0 s\u1ea3n xu\u1ea5t\u2019 ng\u1eaft m\u1ea1ch<\/b><\/strong>\u00a0c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t. Lo\u1ea1i h\u1ee3p kim n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 kh\u00f4ng d\u1ec5 n\u00f3ng ch\u1ea3y. H\u01a1n n\u1eefa, n\u00f3 c\u00f2n c\u00f3 nh\u1eefng c\u1ea3n tr\u1edf nh\u1ea5t \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi vi\u1ec7c d\u1eabn d\u00f2ng \u0111i\u1ec7n, gi\u00fap \u1ee9c ch\u1ebf s\u1ef1 h\u00ecnh th\u00e0nh v\u00e0 ph\u00e1t tri\u1ec3n h\u1ed3 quang khi c\u00e1c ti\u1ebfp \u0111i\u1ec3m v\u1eeba t\u00e1ch ra.<\/p>\n![\"\"](\"https:\/\/yr.junj.cc\/wp-content\/uploads\/2025\/01\/1-circuit-breaker-contacts-300x300.jpg\")
<\/p>\n
<\/span>2. V\u00f2ng cung<\/strong>\u00a0<\/strong>ph\u01b0\u01a1ng ti\u1ec7n ch\u1eefa ch\u00e1y<\/strong><\/span><\/h5>\nD\u1ea7u ng\u1eaft m\u1ea1ch<\/b><\/strong>\u00a0s\u1eed d\u1ee5ng d\u1ea7u l\u00e0m ph\u01b0\u01a1ng ti\u1ec7n. Khi h\u1ed3 quang xu\u1ea5t hi\u1ec7n trong d\u1ea7u, d\u1ea7u s\u1ebd b\u1ecb ph\u00e2n h\u1ee7y. Qu\u00e1 tr\u00ecnh n\u00e0y gi\u1ed1ng nh\u01b0 m\u1ed9t tr\u1ea1m chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng nh\u1ecf. S\u1ef1 ph\u00e2n h\u1ee7y h\u1ea5p th\u1ee5 nhi\u1ec7t c\u1ee7a h\u1ed3 quang, l\u00e0m cho nhi\u1ec7t \u0111\u1ed9 c\u1ee7a h\u1ed3 quang gi\u1ea3m xu\u1ed1ng, \u0111\u1ed3ng th\u1eddi t\u1ea1o ra kh\u00ed. Nh\u1eefng kh\u00ed n\u00e0y c\u00f3 th\u1ec3 k\u00e9o d\u00e3n h\u1ed3 quang, gi\u1ed1ng nh\u01b0 b\u1ed9t b\u1ecb k\u00e9o th\u00e0nh nh\u1eefng d\u1ea3i m\u1ecfng, khi\u1ebfn h\u1ed3 quang d\u1ec5 d\u1eadp t\u1eaft h\u01a1n.<\/p>\nNh\u00ecn v\u00e0o kh\u00ed SF6 trong c\u1ea7u dao SF6. Kh\u00ed n\u00e0y c\u00f3 m\u1ed9t kh\u1ea3 n\u0103ng \u0111\u1eb7c bi\u1ec7t. Sau khi b\u1ecb ion h\u00f3a b\u1edfi h\u1ed3 quang, n\u00f3 c\u00f3 th\u1ec3 nhanh ch\u00f3ng k\u1ebft h\u1ee3p l\u1ea1i. Khi d\u00f2ng \u0111i\u1ec7n trong m\u1ea1ch bi\u1ebfn m\u1ea5t ngay l\u00fac \u0111\u00f3, n\u00f3 c\u00f3 th\u1ec3 nhanh ch\u00f3ng tr\u1edf l\u1ea1i tr\u1ea1ng th\u00e1i c\u00e1ch \u0111i\u1ec7n, gi\u1ed1ng nh\u01b0 vi\u1ec7c \u0111\u1ed9t ng\u1ed9t d\u1ef1ng m\u1ed9t b\u1ee9c t\u01b0\u1eddng c\u00e1ch \u0111i\u1ec7n tr\u01b0\u1edbc h\u1ed3 quang, ng\u0103n kh\u00f4ng cho h\u1ed3 quang ti\u1ebfp t\u1ee5c ch\u00e1y, khi\u1ebfn h\u1ed3 quang b\u1ecb d\u1eadp t\u1eaft.<\/p>\n
Ch\u00e2n kh\u00f4ng trong ch\u00e2n kh\u00f4ng ng\u1eaft m\u1ea1ch<\/b><\/strong>\u00a0c\u0169ng r\u1ea5t th\u00fa v\u1ecb. Trong m\u00f4i tr\u01b0\u1eddng ch\u00e2n kh\u00f4ng h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3 ph\u00e2n t\u1eed kh\u00ed. Khi h\u1ed3 quang \u0111\u01b0\u1ee3c t\u1ea1o ra, do thi\u1ebfu c\u01a1 s\u1edf v\u1eadt ch\u1ea5t \u0111\u1ec3 duy tr\u00ec qu\u00e1 tr\u00ecnh ion h\u00f3a n\u00ean vi\u1ec7c t\u1ed3n t\u1ea1i h\u1ed3 quang tr\u1edf n\u00ean r\u1ea5t kh\u00f3 kh\u0103n. C\u1ee5 th\u1ec3, h\u1ed3 quang s\u1ebd nhanh ch\u00f3ng ti\u00eau tan trong ch\u00e2n kh\u00f4ng v\u00ec kh\u00f4ng c\u00f3 \u0111\u1ee7 m\u00f4i tr\u01b0\u1eddng h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y li\u00ean t\u1ee5c c\u1ee7a n\u00f3. \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao h\u1ed3 quang kh\u00f3 duy tr\u00ec trong m\u00f4i tr\u01b0\u1eddng ch\u00e2n kh\u00f4ng.<\/p>\n<\/span>\u00a0<\/span><\/h2>\n<\/span>S\u1ef1 kh\u00e1c bi\u1ec7t c\u01a1 b\u1ea3n v\u1ec1 c\u00f4ng ngh\u1ec7 d\u1eadp h\u1ed3 quang gi\u1eefa c\u00e1c lo\u1ea1i m\u00e1y c\u1eaft kh\u00e1c nhau l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n<\/span>\u00a0<\/span><\/h5>\n<\/span>v\u00f2ng cung<\/b><\/strong>\u00a0<\/b><\/strong>ph\u01b0\u01a1ng ti\u1ec7n ch\u1eefa ch\u00e1y<\/b><\/strong>:<\/strong><\/span><\/h5>\n\u2013 B\u1ed9 ng\u1eaft m\u1ea1ch d\u1ea7u<\/b><\/strong>: S\u1eed d\u1ee5ng d\u1ea7u l\u00e0m m\u00f4i tr\u01b0\u1eddng c\u00e1ch \u0111i\u1ec7n v\u00e0 d\u1eadp t\u1eaft h\u1ed3 quang. D\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a h\u1ed3 quang \u1edf nhi\u1ec7t \u0111\u1ed9 cao, d\u1ea7u s\u1ebd b\u1ecb ph\u00e2n h\u1ee7y v\u00e0 bay h\u01a1i, xung quanh h\u1ed3 quang s\u1ebd h\u00ecnh th\u00e0nh bong b\u00f3ng. Hydro chi\u1ebfm th\u00e0nh ph\u1ea7n ch\u00ednh trong bong b\u00f3ng v\u00e0 t\u00ednh d\u1eabn nhi\u1ec7t c\u1ee7a hydro \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh l\u00e0m m\u00e1t v\u00e0 d\u1eadp t\u1eaft h\u1ed3 quang.<\/p>\n <\/p>\n
\u2013 B\u1ed9 ng\u1eaft m\u1ea1ch ch\u00e2n kh\u00f4ng<\/b><\/strong>: Th\u1ef1c hi\u1ec7n t\u1eaft h\u1ed3 quang trong m\u00f4i tr\u01b0\u1eddng ch\u00e2n kh\u00f4ng cao. H\u1ed3 quang \u0111\u1ed1t trong h\u01a1i kim lo\u1ea1i do v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac t\u1ea1o ra ch\u1ee7 y\u1ebfu b\u1ecb d\u1eadp t\u1eaft th\u00f4ng qua hi\u1ec7n t\u01b0\u1ee3ng ti\u1ebfp x\u00fac c\u1ef1c \u00e2m, \u0111\u1ed9 n\u00f3ng c\u1ee7a c\u1ef1c d\u01b0\u01a1ng v\u00e0 s\u1ef1 khu\u1ebfch t\u00e1n nhanh ch\u00f3ng c\u1ee7a plasma v\u00e0o kh\u00f4ng gian xung quanh.<\/p>\n <\/p>\n
\u2013 B\u1ed9 ng\u1eaft m\u1ea1ch SF6<\/b><\/strong>: S\u1eed d\u1ee5ng kh\u00ed SF6 l\u00e0m m\u00f4i tr\u01b0\u1eddng c\u00e1ch \u0111i\u1ec7n v\u00e0 d\u1eadp t\u1eaft h\u1ed3 quang. Kh\u00ed SF6 c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 c\u00e1c electron t\u1ef1 do m\u1ea1nh m\u1ebd v\u00e0 c\u00f3 th\u1ec3 kh\u1eed ion nhanh ch\u00f3ng khi d\u00f2ng \u0111i\u1ec7n b\u1eb1ng 0, t\u1eeb \u0111\u00f3 d\u1eadp t\u1eaft h\u1ed3 quang.<\/p>\n![\"\"](\"https:\/\/yr.junj.cc\/wp-content\/uploads\/2025\/01\/2-YRO-Vacuum-circuit-breaker-300x300.jpg\")
<\/p>\n
<\/span>Nguy\u00ean t\u1eafc tuy\u1ec7t ch\u1ee7ng h\u1ed3 quang<\/b><\/strong>:<\/strong><\/span><\/h5>\n\u2013 B\u1ed9 ng\u1eaft m\u1ea1ch d\u1ea7u<\/b><\/strong>: Hydro \u0111\u01b0\u1ee3c t\u1ea1o ra do qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y d\u1ea7u, t\u1ea1o th\u00e0nh kh\u00ed trung b\u00ecnh bao quanh h\u1ed3 quang \u0111\u1ec3 \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh l\u00e0m m\u00e1t v\u00e0 d\u1eadp t\u1eaft h\u1ed3 quang.<\/p>\n <\/p>\n
\u2013 B\u1ed9 ng\u1eaft m\u1ea1ch ch\u00e2n kh\u00f4ng<\/b><\/strong>: T\u1eadn d\u1ee5ng hi\u1ec7u su\u1ea5t c\u00e1ch \u0111i\u1ec7n cao v\u00e0 hi\u1ec7u su\u1ea5t d\u1eabn nhi\u1ec7t t\u1ed1c \u0111\u1ed9 cao c\u1ee7a m\u00f4i tr\u01b0\u1eddng ch\u00e2n kh\u00f4ng \u0111\u1ec3 h\u1ea5p th\u1ee5 nhanh ch\u00f3ng c\u00e1c h\u1ea1t t\u00edch \u0111i\u1ec7n trong h\u1ed3 quang tr\u00ean th\u00e0nh bu\u1ed3ng ch\u00e2n kh\u00f4ng, \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t d\u1eabn nhi\u1ec7t, nh\u1edd \u0111\u00f3 h\u1ed3 quang \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t v\u00e0 d\u1eadp t\u1eaft nhanh ch\u00f3ng.<\/p>\n <\/p>\n
\u2013 B\u1ed9 ng\u1eaft m\u1ea1ch SF6<\/b><\/strong>: S\u1eed d\u1ee5ng kh\u00ed SF6 \u1edf \u00e1p su\u1ea5t t\u1eeb \u200b\u200bv\u00e0i \u0111\u1ebfn ch\u1ee5c l\u1ea7n \u0111\u1ec3 t\u1ea1o th\u00e0nh lu\u1ed3ng kh\u00ed t\u1ed1c \u0111\u1ed9 cao \u1edf v\u00f2i phun nh\u1eb1m d\u1eadp t\u1eaft h\u1ed3 quang.<\/p>","protected":false},"excerpt":{"rendered":"Within the power system’s routine operation, the circuit breaker emerges as a linchpin. Whenever circuit glitches like overload or short\u00a0circuiting strike, it has to spring into action pronto, severing the circuit.<\/p>","protected":false},"featured_media":3234,"template":"","meta":{"_acf_changed":false,"footnotes":""},"blog_category":[19],"class_list":["post-3231","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog\/3231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/types\/blog"}],"version-history":[{"count":10,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog\/3231\/revisions"}],"predecessor-version":[{"id":3660,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog\/3231\/revisions\/3660"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/media\/3234"}],"wp:attachment":[{"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/media?parent=3231"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog_category?post=3231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}