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Created by:Annija  Annija
{"id":376761,"type":0,"block_id":"Anniijaa_1353846458","theme_id":20,"user_id":140113,"path":"Mainstrava-Annija","title":"Maiņstrāva","pubtitle":"Maiņstrāva","tags":"","public":true,"publicAccess":true,"private_link_enabled":0,"thumb":"https://s3-eu-west-1.amazonaws.com/infogram-thumbs-200/Anniijaa_1353846458.jpg","width":583,"copyright":"","properties":{"transparent":false,"rtl":false,"export_settings":{"showGrid":true,"showValues":true},"whitelabel":false,"embed_button":"enabled","title_link":"infogram","custom_logo":"infogram","custom_link_url":"","embed_button_text":"Share","decimal_separator":".,"},"elements":[{"type":"particle","particle_id":12709051,"object_id":"0236f62d-ea20-11e4-a037-7b5f270fdca9","particle_type":"maintitle","picture":null,"text":"Maiņstrāva","content_type":"","title":null,"shrink":null},{"type":"particle","particle_id":341977,"object_id":"Anniijaa_1353846458","particle_type":"quote","picture":null,"text":"Maiņstrāvas iegūšana: homogēnā magnētiskajā laukā, rotējot rāmītim, tajā inducējas elektrodzinējspēks. Mainīgais elektrodzinējspēks rada maiņstrāvas uzspiestās svārstības ir\n\ni=Im sin ωt, kur\n\ni – strāvas momentānā vērtība, A;\nIm – strāvas maksimālā vērtība jeb amplitūda, A;\nω – rāmīša kustības leņķiskais ātrums, rad/s;\nt – laiks, s. ","content_type":"","title":"","shrink":null},{"type":"particle","particle_id":341969,"object_id":"Anniijaa1353847781","particle_type":"image","picture":"http://s3-eu-west-1.amazonaws.com/infogram-particles-700/Anniijaa1353847781.jpg"},{"type":"particle","particle_id":364149,"object_id":"Anniijaa1354364979","particle_type":"bodytitle","picture":null,"text":"Maiņstrāvas pārvade","content_type":"","title":null,"shrink":null},{"type":"particle","particle_id":364185,"object_id":"Anniijaa1354365713","particle_type":"bodytext","picture":null,"text":"Garu elektroenerģijas pārvades līniju galvenais uzdevums ir pārvadīt elektroenerģiju tā, lai būtu iespējami mazāki jaudas zudumi siltuma veidā. Pastāv divas iespējas, kā šos zudumus samazināt. Var palielināt elektrības vadu šķērsgriezuma laukumu S, tādējādi samazinot vadu pretestību R = rlS un līdz ar to arī siltuma daudzumu, ko līnija zaudē (l — līnijas garums, r — vadu materiāla īpatnējā pretestība). Taču tad būtu jāpatērē pārāk daudz materiāla un tik smagu vadu līniju būtu grūti ierīkot. Cita iespēja ir daudz perspektīvāka — var samazināt pārvades līniju vados plūstošās strāvas stiprumu I. Arī tad strauji samazinās siltuma zudumi Q = I2 R, kuru jauda ir proporcionāla strāvas stipruma kvadrātam. Taču, lai nesamazinātu pa līniju pārvadīto jaudu S = IU, ir jāpaaugstina spriegums U.","content_type":"","title":null,"shrink":null},{"type":"particle","particle_id":367327,"object_id":"Anniijaa1354459660","particle_type":"bodytitle","picture":null,"text":" Elektroenerģija Latvijā","content_type":"","title":null,"shrink":null},{"type":"particle","particle_id":367350,"object_id":"Anniijaa1354459778","particle_type":"bodytext","picture":null,"text":"Latvijā vienotu elektrotīklu pārvalda akciju sabiedrība \n“Latvenergo”. Tā katru gadu nodrošina kopējo elektroenerģijas piegādi aptuveni 7 miljardu kilovatstundu apjomā. Aptuveni 70% no Latvijā patērētās elektroenerģijas saražo visi Latvijā esošo elektrostaciju ģeneratori. Latvijā jau darbojas vairāki vēja ģeneratori un visai daudzas mazās hidroelektrostacijas.Taču to kopējais devums šobrīd ir nedaudz vairāk par 1% no kopējās elektroenerģijas piegādes apjoma. Ir atsevišķi mēģinājumi iegūt \nelektroenerģiju ar saules bateriju palīdzību, taču Latvijas ģeogrāfiskais stāvoklis un meteoroloģiskie apstākļi to sekmīgai izmantošanai nav piemēroti. ","content_type":"","title":null,"shrink":null},{"type":"particle","particle_id":367516,"object_id":"Anniijaa1354462143","particle_type":"quote","picture":null,"text":"Latvijā esošais vēja parks pie Liepājas (1,8 MW katrs ģenerators) ","content_type":"","title":"","shrink":null},{"type":"particle","particle_id":367524,"object_id":"Anniijaa1354462239","particle_type":"image","picture":"http://s3-eu-west-1.amazonaws.com/infogram-particles-700/Anniijaa1354462239.jpg"}],"theme":{"createdAt":"2016-04-22T04:54:06.000Z","updatedAt":"2016-12-28T10:32:12.000Z","logoImages":[""],"charts":{"wordcloud":{"labels":{"fontWeight":"700","fontFamily":"Arial"}},"treemap":{"labels":{"value":{"fontFamily":"PT Sans Narrow"},"name":{"fontWeight":"700","fontFamily":"PT Sans 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rel=\"nofollow\">Create your own infographics</a></div>","embedIframe":"<iframe src=\"//e.infogr.am/Mainstrava-Annija?src=embed\" title=\"Maiņstrāva\" width=\"583\" height=\"\" scrolling=\"no\" frameborder=\"0\" style=\"border:none;\"></iframe><div style=\"padding:8px 0;font-family:Arial!important;font-size:13px!important;line-height:15px!important;text-align:center;border-top:1px solid #dadada;margin:0 30px\"><a href=\"https://infogr.am/Mainstrava-Annija\" style=\"color:#989898!important;text-decoration:none!important;\" target=\"_blank\" rel=\"nofollow\">Maiņstrāva</a><br><a href=\"https://infogr.am\" style=\"color:#989898!important;text-decoration:none!important;\" target=\"_blank\" rel=\"nofollow\">Create your own infographics</a></div>","embedWordpress":"[infogram id=\"Mainstrava-Annija\" prefix=\"EFM\" format=\"interactive\" title=\"Maiņstrāva\"]","embedWordpressImage":"[infogram id=\"Mainstrava-Annija\" prefix=\"HeU\" format=\"image\" title=\"Maiņstrāva\"]","embedAsync":"<div 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