{"id":36078,"date":"2024-08-29T11:06:01","date_gmt":"2024-08-29T11:06:01","guid":{"rendered":"https:\/\/entri.app\/question-answer\/during-no-load-test-of-a-3-phase-induction-motor-the-power-drawn-by-the-motor-is-to-meet\/"},"modified":"2024-08-29T11:06:01","modified_gmt":"2024-08-29T11:06:01","slug":"during-no-load-test-of-a-3-phase-induction-motor-the-power-drawn-by-the-motor-is-to-meet","status":"publish","type":"post","link":"https:\/\/entri.app\/question-answer\/during-no-load-test-of-a-3-phase-induction-motor-the-power-drawn-by-the-motor-is-to-meet\/","title":{"rendered":"During no load test of a 3 phase induction motor, the power drawn by the motor is to meet"},"content":{"rendered":"<ul>\n<li>No load test is performed when rotor rotates with synchronous speed and there is no load torque. This test is similar to the open circuit test on transformer. <\/li>\n<li>Actually, to achieve synchronous speed in an induction motor is impossible. The speed is assumed to be synchronized. The synchronous speed can be achieved by taking slip = 0 which creates infinite impedance in the rotor branch.<\/li>\n<li>During the no load test the energy consumed will be used to meet the core losses and the friction and windage losses. <\/li>\n<li>Rotor copper loss at no load is very less that its value is negligible.<\/li>\n<li>\n<p>The diagram shows how the energy supplied to the motor is utilized and different losses in the motor.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cloudfront.entri.app\/media\/inline_images\/2024\/02\/03\/10-57-32\/Total_loss.png\" alt=\"Image\"><\/p>\n<\/li>\n<li>Power input = core loss ?? copper loss  windage and friction loss<\/li>\n<li>Core loss occur only in stator, because at no load slip is very small , so frequency of induced emf in rotor will be extremely small.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>No load test is performed when rotor rotates with synchronous speed and there is no load torque. This test is similar to the open circuit test on transformer. Actually, to achieve synchronous speed in an induction motor is impossible. The speed is assumed to be synchronized. The synchronous speed can be achieved by taking slip [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[411],"tags":[],"class_list":["post-36078","post","type-post","status-publish","format-standard","hentry","category-electrical"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>During no load test of a 3 phase induction motor, the power drawn by the motor is to meet<\/title>\n<meta name=\"description\" content=\"During no load test of a 3 phase induction motor, the power drawn by the motor is to meet : Find the answer with a detailed explanation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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