{"id":207,"date":"2024-07-14T16:55:00","date_gmt":"2024-07-14T14:55:00","guid":{"rendered":"https:\/\/gezhi-tech.com\/?p=207"},"modified":"2025-09-27T17:50:25","modified_gmt":"2025-09-27T15:50:25","slug":"clause-3-how-to-understand-the-definition-of-rated-frequency-range","status":"publish","type":"post","link":"https:\/\/gezhi-tech.com\/vi\/clause-3-how-to-understand-the-definition-of-rated-frequency-range\/","title":{"rendered":"Kho\u1ea3n 3 \u2013 C\u00e1ch hi\u1ec3u \u0111\u1ecbnh ngh\u0129a v\u1ec1 \u201cd\u1ea3i t\u1ea7n s\u1ed1 danh \u0111\u1ecbnh\u201d"},"content":{"rendered":"d\u1ea3i t\u1ea7n s\u1ed1 danh \u0111\u1ecbnh: d\u1ea3i t\u1ea7n do nh\u00e0 s\u1ea3n xu\u1ea5t \u1ea5n \u0111\u1ecbnh cho thi\u1ebft b\u1ecb, \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng gi\u1edbi h\u1ea1n d\u01b0\u1edbi v\u00e0 gi\u1edbi h\u1ea1n tr\u00ean c\u1ee7a d\u1ea3i t\u1ea7n \u0111\u00f3.<br>\n<br>\nT\u1ea7n s\u1ed1 \u0111\u1ecbnh m\u1ee9c \u1edf d\u1ea1ng d\u1ea3i, th\u01b0\u1eddng l\u00e0 50-60 Hz, nh\u01b0ng t\u1ea5t c\u1ea3 c\u00e1c qu\u1ed1c gia tr\u00ean th\u1ebf gi\u1edbi \u0111\u1ec1u c\u00f3 t\u1ea7n s\u1ed1 ch\u00ednh 50 Hz ho\u1eb7c 60 Hz, kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb t\u1ea7n s\u1ed1 trung gian n\u00ean \u0111\u1ecbnh ngh\u0129a kh\u00f4ng c\u00f3 \u00fd ngh\u0129a l\u1eafm. 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