{"id":4980,"date":"2026-08-11T10:35:03","date_gmt":"2026-08-11T02:35:03","guid":{"rendered":"https:\/\/www.yifandrive.com\/?p=4980"},"modified":"2026-08-25T10:50:48","modified_gmt":"2026-08-25T02:50:48","slug":"circuit-breaker-switchgear","status":"publish","type":"post","link":"https:\/\/www.yifandrive.com\/index.php\/2026\/08\/11\/circuit-breaker-switchgear\/","title":{"rendered":"Circuit breaker\u00a0Switchgear"},"content":{"rendered":"\n

Circuit breakers and switches are important devices used to control, protect and isolate circuits in power systems. In these devices, the action mechanism plays a vital role, responsible for driving the connecting and breaking operations of the circuit breaker or switch. Permanent magnet DC brushed motor or AC and DC dual-purpose motor is a common type of such action mechanism. Below, I’ll explain the basic principles of using these motors.<\/p>\n\n\n\n

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In circuit breaker and switch applications, motor selection depends on several factors, including required operating speed, reliability, power supply type (AC\/DC), and cost-effectiveness. Permanent magnet DC brushed motors are widely used in small equipment because of their simplicity and reliability, while AC and DC motors provide greater flexibility and are especially suitable for situations where power supply conditions are complex or may change.<\/p>\n<\/div>\n\n\n\n

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Circuit breakers and switches are important devices used to control, protect and isolate circuits in power systems. In these devices, the action mechanism plays a vital role, responsible for driving the connecting and breaking operations of the circuit breaker or switch. Permanent magnet DC brushed motor or AC and DC dual-purpose motor is a common […]<\/p>\n","protected":false},"author":1,"featured_media":4982,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false,"_geo_short_summary":"","_geo_structured_desc":"","_geo_faqs":"","_geo_key_points":"","_geo_target_audience":"","_geo_content_type":"","_geo_last_modified":"","_geo_version":0,"themepark_seo_title":"","themepark_seo_description":"","footnotes":""},"categories":[22,27,1],"tags":[],"class_list":["post-4980","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case","category-xsal","category-uncategorized"],"metadata":{"_edit_lock":["1787626248:1"],"_edit_last":["1"],"_aioseo_title":[null],"_aioseo_description":[null],"_aioseo_og_title":[""],"_aioseo_og_description":[""],"_aioseo_og_article_section":[""],"_aioseo_twitter_title":[""],"_aioseo_twitter_description":[""],"_aioseo_keywords":["a:0:{}"],"_aioseo_og_article_tags":["a:0:{}"],"catce":["sidebar-widgets4"],"temp2":["\u6848\u4f8b\u4e2d\u5fc3\u9876\u90e8\u6a21\u677f"],"_thumbnail_id":["4982"],"themepark_seo_title":[""],"themepark_seo_description":[""],"themepark_seo_keyword":[""]},"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t