{"id":5226,"date":"2025-09-15T07:14:27","date_gmt":"2025-09-15T07:14:27","guid":{"rendered":"https:\/\/www.ketetransformer.com\/?p=5226"},"modified":"2025-09-15T08:05:18","modified_gmt":"2025-09-15T08:05:18","slug":"transformer-core-cross-sectional-area-calculation-formula","status":"publish","type":"post","link":"https:\/\/www.ketetransformer.com\/ru\/transformer-core-cross-sectional-area-calculation-formula\/","title":{"rendered":"\u0424\u043e\u0440\u043c\u0443\u043b\u0430 \u0440\u0430\u0441\u0447\u0435\u0442\u0430 \u043f\u043b\u043e\u0449\u0430\u0434\u0438 \u043f\u043e\u043f\u0435\u0440\u0435\u0447\u043d\u043e\u0433\u043e \u0441\u0435\u0447\u0435\u043d\u0438\u044f \u0441\u0435\u0440\u0434\u0435\u0447\u043d\u0438\u043a\u0430 \u0442\u0440\u0430\u043d\u0441\u0444\u043e\u0440\u043c\u0430\u0442\u043e\u0440\u0430."},"content":{"rendered":"
\n\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

(1) \u041f\u043e\u043f\u0435\u0440\u0435\u0447\u043d\u043e\u0435 \u0441\u0435\u0447\u0435\u043d\u0438\u0435 \u043b\u0438\u0441\u0442\u0430 \u043a\u0440\u0435\u043c\u043d\u0438\u0435\u0432\u043e\u0439 \u0441\u0442\u0430\u043b\u0438 \u0434\u043b\u044f \u0442\u0440\u0430\u043d\u0441\u0444\u043e\u0440\u043c\u0430\u0442\u043e\u0440\u0430: 3,2 \u0441\u043c \u00d7 3,4 \u0441\u043c \u00d7 0,9 = 9,792 \u0441\u043c\u00b2<\/p>

(2) \u0420\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u0442\u044c \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u044c \u0442\u0440\u0430\u043d\u0441\u0444\u043e\u0440\u043c\u0430\u0442\u043e\u0440\u0430 \u0438\u0441\u0445\u043e\u0434\u044f \u0438\u0437 \u043f\u043b\u043e\u0449\u0430\u0434\u0438 \u043f\u043e\u043f\u0435\u0440\u0435\u0447\u043d\u043e\u0433\u043e \u0441\u0435\u0447\u0435\u043d\u0438\u044f \u043b\u0438\u0441\u0442\u0430 \u043a\u0440\u0435\u043c\u043d\u0438\u0435\u0432\u043e\u0439 \u0441\u0442\u0430\u043b\u0438: P = S \/ K\u00b2 = (9,79 \/ 1,25)\u00b2 = 61,34 \u0432\u0430\u0442\u0442 (\u043f\u0440\u0438\u043d\u044f\u0442\u044c 60 \u0432\u0430\u0442\u0442)<\/p>

(3) \u0420\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u0442\u044c \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0432\u0438\u0442\u043a\u043e\u0432 \u043d\u0430 \u0432\u043e\u043b\u044c\u0442 \u043a\u0430\u0442\u0443\u0448\u043a\u0438 \u0438\u0441\u0445\u043e\u0434\u044f \u0438\u0437 \u043f\u043b\u043e\u0449\u0430\u0434\u0438 \u043f\u043e\u043f\u0435\u0440\u0435\u0447\u043d\u043e\u0433\u043e \u0441\u0435\u0447\u0435\u043d\u0438\u044f: W = 4,5 \u00d7 10\u2075 \/ BmS = 4,5 \u00d7 10\u2075 \/ (10 000 \u00d7 9,79) = 4,6 \u0432\u0438\u0442\u043a\u043e\u0432\/\u0432\u043e\u043b\u044c\u0442<\/p>

(4) \u041a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0432\u0438\u0442\u043a\u043e\u0432 \u043f\u0435\u0440\u0432\u0438\u0447\u043d\u043e\u0439 \u043e\u0431\u043c\u043e\u0442\u043a\u0438: 220 \u00d7 4,6 = 1012 \u0432\u0438\u0442\u043a\u043e\u0432<\/p>

(5) \u0422\u043e\u043a \u0432 \u043f\u0435\u0440\u0432\u0438\u0447\u043d\u043e\u0439 \u043e\u0431\u043c\u043e\u0442\u043a\u0435: 60 \u0412\u0442 \/ 220 \u0412 = 0,273 \u0410<\/p>

(6) \u0414\u0438\u0430\u043c\u0435\u0442\u0440 \u043f\u0440\u043e\u0432\u043e\u043b\u043e\u043a\u0438 \u043f\u0435\u0440\u0432\u0438\u0447\u043d\u043e\u0439 \u043e\u0431\u043c\u043e\u0442\u043a\u0438: d = 0,715 \u221a0,273 = 0,37 (\u043c\u043c)<\/p>

(7) \u041a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0432\u0438\u0442\u043a\u043e\u0432 \u0432\u0442\u043e\u0440\u0438\u0447\u043d\u043e\u0439 \u043e\u0431\u043c\u043e\u0442\u043a\u0438: 2*(51*4,6*1,03)=2*242 (\u0432\u0438\u0442\u043a\u0430)<\/p>

(1,03 \u2014 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u043f\u043e\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f, \u0434\u0432\u0443\u0445\u0441\u0442\u0443\u043f\u0435\u043d\u0447\u0430\u0442\u0430\u044f \u0441\u0445\u0435\u043c\u0430 51 \u0412 = 2 \u00d7 242 \u0432\u0438\u0442\u043a\u0430)<\/p>

\u00a0<\/p>

(8) \u0422\u043e\u043a \u0432 \u0432\u0442\u043e\u0440\u0438\u0447\u043d\u043e\u0439 \u043e\u0431\u043c\u043e\u0442\u043a\u0435: 60 \u0412\u0442 \/ (2 \u00d7 51 \u0412) = 0,59 \u0410<\/p>

(9) \u0414\u0438\u0430\u043c\u0435\u0442\u0440 \u0432\u0442\u043e\u0440\u0438\u0447\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u043e\u043b\u043e\u043a\u0438: d = 0,715 \u221a0,59 = 0,55 (\u043c\u043c)<\/p>

\"\u0424\u043e\u0440\u043c\u0443\u043b\u0430<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

(1) Transformer silicon steel sheet cross section: 3.2CM*3.4CM*0.9=9.792CM^2 (2) Calculate transformer power based on silicon steel sheet cross section: P=S\/K^2=(9.79\/1.25)^2=61.34 watts (take 60 watts) (3) Calculate the number of turns per volt of the coil based on the cross section: W=4.5*10^5\/BmS=4.5*10^5\/(10000*9.79)=4.6 turns\/volt (4) Number of turns of the primary coil: 220*4.6\uff1d1012 turns ( 5) Primary […]<\/p>\n","protected":false},"author":1,"featured_media":4694,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","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":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-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 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(1) Transformer silicon steel sheet cross section: 3.2CM*3.4CM*0.9=9.792CM^2<\\\/p>

(2) Calculate transformer power based on silicon steel sheet cross section: P=S\\\/K^2=(9.79\\\/1.25)^2=61.34 watts (take 60 watts)<\\\/p>

(3) Calculate the number of turns per volt of the coil based on the cross section: W=4.5*10^5\\\/BmS=4.5*10^5\\\/(10000*9.79)=4.6 turns\\\/volt<\\\/p>

(4) Number of turns of the primary coil: 220*4.6\\uff1d1012 turns<\\\/p>

( 5) Primary coil current: 60W\\\/220V=0.273A<\\\/p>

(6) Primary coil wire diameter: d=0.715 root 0.273=0.37(MM)<\\\/p>

(7) Secondary coil turns: 2*(51*4.6*1.03)=2*242(turns)<\\\/p>

(1.03 is the step-down factor, two-stage 51V=2*242 turns)<\\\/p>

\\u00a0<\\\/p>

(8) Secondary coil current: 60W\\\/(2*51V)=0.59A<\\\/p>

(9) Secondary wire diameter: d=0.715 root 0.59=0.55(MM)<\\\/p>

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