{"id":32201,"date":"2026-06-15T22:10:46","date_gmt":"2026-06-15T14:10:46","guid":{"rendered":"https:\/\/www.gensetglobe.com\/?p=32201"},"modified":"2026-06-15T22:10:46","modified_gmt":"2026-06-15T14:10:46","slug":"what-causes-a-generator-alternator-to-demagnetize-and-how-should-it-be-addressed","status":"publish","type":"post","link":"https:\/\/www.gensetglobe.com\/id\/blog\/what-causes-a-generator-alternator-to-demagnetize-and-how-should-it-be-addressed\/","title":{"rendered":"What causes a generator (alternator) to demagnetize, and how should it be addressed?"},"content":{"rendered":"\n<p>If a generator (alternator) is left unused for an extended period, the residual magnetism in the core present at the time of manufacture will be lost, preventing the excitation coil from generating the necessary magnetic field. In this case, the generator will run normally but will be unable to generate electricity. For many new units or units that have not been used for a long time, follow these steps:<\/p>\n\n\n\n<p>1) If there is an excitation button, press it.<\/p>\n\n\n\n<p>2) Use a battery to magnetize the unit if there is no excitation button.<\/p>\n\n\n\n<p>3) Run the unit for a few seconds with an overloaded light bulb.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If a generator (alternator) is left unused for an extended period, the residual magnetism in the core present at the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":32089,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":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":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","genset-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-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":"","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-4)","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-4)","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-4)","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":[183],"tags":[],"class_list":["post-32201","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What causes a generator (alternator) to demagnetize, and how should it be addressed? - Diesel Generator Sets \u2013 Powering Industries Across the Globe<\/title>\n<meta name=\"description\" content=\"Shop premium outdoor curtains for patio, garden, and balcony. 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