{"id":1290,"date":"2026-07-22T05:33:09","date_gmt":"2026-07-22T05:33:09","guid":{"rendered":"https:\/\/lstransformer.com\/how-to-analyze-and-dissect-three-phase-transformers\/"},"modified":"2026-09-30T03:18:42","modified_gmt":"2026-09-30T03:18:42","slug":"how-to-analyze-and-dissect-three-phase-transformers","status":"publish","type":"post","link":"https:\/\/www.lstransformer.com\/ja\/how-to-analyze-and-dissect-three-phase-transformers\/","title":{"rendered":"How to analyze and dissect three-phase transformers?"},"content":{"rendered":"

How to analyze and dissectthree-phasetransformers?<\/h1>\n

\"\u672a\u5b9a\u7fa9\"<\/a><\/p>\n

A transformer is a device that transforms AC voltage, current, and impedance. When an AC current flows through the primary coil, an alternating magnetic flux is generated in the core (or magnetic core), inducing voltage (or current) in the secondary coil. With the continuous development of the transformer industry, more and more industries and enterprises are using transformers, and more and more enterprises are entering the transformer industry. Transformers are composed of cores (or magnetic cores) and coils, with two or more windings. The winding that is connected to the power source is called the primary winding, and the remaining windings are called secondary windings.<\/p>\n

1. Parameters of transformers:<\/em><\/h3>\n

(1) Rated power:<\/span> <\/strong>The characteristic sign variable of the current transformer under the frequency and voltage.<\/p>\n

(2) Rated voltage:<\/span> <\/strong>The voltage applied to the coil of the transformer. The transformer can work for a long time without exceeding the temperature rise of the output power.<\/p>\n

(3) Voltage ratio:<\/span> <\/strong>Refers to the ratio of the high voltage to the secondary voltage of the transformer, with differences between the no-load voltage ratio and the load voltage ratio.<\/p>\n

(4) Operating frequency:<\/span> <\/strong>The relationship between the iron loss of the transformer core and the frequency is significant, so the frequency used for design and operation is called the operating frequency.<\/p>\n

(5) Efficiency:<\/span> <\/strong>The percentage ratio of the secondary power P2 to the primary power P1. The higher the rated power of the transformer, the higher the efficiency.<\/p>\n

(6) No-load loss:<\/span> <\/strong>Refers to the power loss measured at the high side when the secondary of the transformer is open. The main loss is the core loss, followed by the loss caused by the current flowing through the original coil copper resistance (copper loss). This part of the loss is relatively small.<\/p>\n

(7) No-load current:<\/span> <\/strong>When the secondary of a three-phase transformer is open, there is still an indefinite current, which is called the no-load current. The no-load current consists of magnetizing current (which generates magnetic flux) and iron loss current (caused by core loss). For a 50Hz current transformer, the no-load current is generally higher than the magnetizing current.<\/p>\n

(8) Insulation resistance:<\/span> <\/strong>Represents the insulation performance between the coils of the transformer, between each coil and the core. The insulation resistance is related to the performance of the insulation material used, temperature fluctuations, and the degree of humidity.<\/p>\n

\u9023\u7d61\u5148<\/strong><\/h2>\n

\u5eec\u5c71,est\u3002 1975\u5e74\u306b\u306f\u4e2d\u56fd\u306e\u5c02\u9580\u8077\u306e\u5c02\u9580\u30e1\u30fc\u30ab\u30fc\u306e\u96fb\u529b\u5909\u5727\u5668\u53ca\u3073\u539f\u5b50\u7089\u306e\u305f\u3081\u306e50+\u308b\u3002 \u4e3b\u88fd\u54c1 \u5358\u76f8\u30c8\u30e9\u30f3\u30b9\u3001\u4e09\u76f8\u7d76\u7e01\u5909\u5727\u5668\u3001\u96fb\u6c17\u30c8\u30e9\u30f3\u30b9\u3001\u7269\u6d41\u30c8\u30e9\u30f3\u30b9\u3001\u30b9\u30c6\u30c3\u30d7\u306e\u4e0b\u3001\u4fe1\u7528\u30ea\u30b9\u30af\u4ee5\u5916\u306e\u30ea\u30b9\u30af\u306b\u3064\u304d\u30c8\u30e9\u30f3\u30b9\u3001\u4f4e\u96fb\u5727\u30c8\u30e9\u30f3\u30b9\u3001\u9ad8\u96fb\u5727\u30c8\u30e9\u30f3\u30b9\u3001\u5236\u5fa1\u30c8\u30e9\u30f3\u30b9\u3001\u30c8\u30ed\u30a4\u30c0\u30eb\u30c8\u30e9\u30f3\u30b9\u3001R\u30b3\u30a2\u30c8\u30e9\u30f3\u30b9\u76f4\u6d41\u30a4\u30f3\u30c0\u30af\u30bf\u30fc\u3001AC\u7089\u3067\u306f\u3001\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u7089\u3001\u8ca0\u8377\u7089chokes\u3001\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u539f\u5b50\u7089\u306f\u3001\u4e2d\u9593\u4f53\u3001\u9ad8\u5468\u6ce2\u88fd\u54c1<\/a>.<\/p>\n

\u5f53\u793e\u306e\u96fb\u529b\u5909\u5727\u5668\u53ca\u3073\u539f\u5b50\u7089\u306b\u5e83\u304f\u4f7f\u7528\u3055\u308c\u306610\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3:\u9ad8\u901f\u9244\u9053\u3001\u5efa\u8a2d\u6a5f\u68b0\u3001\u518d\u751f\u53ef\u80fd\u30a8\u30cd\u30eb\u30ae\u30fc\u3001\u30ed\u30dc\u30c3\u30c8\u3001\u533b\u7642\u6a5f\u5668\u3001\u70ad\u9271\u7206\u767a\u306e\u9632\u6b62\u3001\u52b1\u8d77\u30b7\u30b9\u30c6\u30e0\u3001\u771f\u7a7a\u713c\u7d50(\u7089)\u3001\u4e2d\u592e\u30a8\u30a2\u30b3\u30f3\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u77e5\u96fb\u6e90\u30c8\u30e9\u30f3\u30b9\u539f\u5b50\u7089: www.lstransformer.com<\/a>.<\/p>\n

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\nWhatsApp\uff1a+86 13787095096
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How to analyze and dissectthree-phasetransformers? A transformer is a device that transforms AC voltage, current, and impedance. When an AC current flows through the primary coil, an alternating magnetic flux is generated in the core (or magnetic core), inducing voltage (or current) in the secondary coil. With the continuous development of the transformer industry, more and more industries and enterprises are using transformers, and more and more enterprises are entering the transformer industry. Transformers are composed of cores (or magnetic cores) and coils, with two or more windings. The winding that is connected to the power source is called the primary winding, and the remaining windings are called secondary windings. […]<\/p>\n","protected":false},"author":3,"featured_media":4146,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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":[48],"tags":[],"class_list":["post-1290","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq"],"yoast_head":"\nHow to analyze and dissect three-phase transformers? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD<\/title>\n<meta name=\"description\" content=\"A transformer is a device that transforms AC voltage, current, and impedance. 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