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Created by:Toms MiezisToms Miezis
{"id":368582,"type":0,"block_id":"TomsMiezis_1353492158","theme_id":30,"user_id":140125,"path":"Mainstrava-437286","title":"Maiņstrāva","pubtitle":"Maiņstrāva","tags":"","public":true,"publicAccess":true,"private_link_enabled":0,"thumb":"https://s3-eu-west-1.amazonaws.com/infogram-thumbs-200/TomsMiezis_1353492158.jpg","width":550,"copyright":null,"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":17244232,"object_id":"2902252b-eade-11e4-a037-7b5f270fdca9","particle_type":"maintitle","picture":null,"text":"Maiņstrāva","content_type":"","title":null,"shrink":null},{"type":"particle","particle_id":352510,"object_id":"TomsMiezis1355681884","particle_type":"quote","picture":null,"text":"MAIŅSTRĀVAS RAŽOŠANA","content_type":"","title":"Toms Miezis 12.b","shrink":null},{"type":"particle","particle_id":352522,"object_id":"TomsMiezis1354096449","particle_type":"image","picture":"http://s3-eu-west-1.amazonaws.com/infogram-particles-700/TomsMiezis1354096449.jpg"},{"type":"particle","particle_id":414507,"object_id":"TomsMiezis1355681918","particle_type":"quote","picture":null,"text":"Kā darbojas ģenerators?","content_type":"","title":"Ģenerators ir ierīce, kas mehānisko enerģiju pārveido elektroenerģijā. Ģeneratori, konstruktīvi ir līdzīgi elektromotoriem, tikai tie ir optimizēti elektrības iegūšanai.","shrink":null},{"type":"particle","particle_id":414527,"object_id":"TomsMiezis1355682931","particle_type":"bodytext","picture":null,"text":"MAIŅSTRĀVAS RAKSTURLIELUMI - Maiņstrāvas galvenie raksturlielumi ir elektrodzinējspēka, strāvas stipruma un sprieguma momentānās vērtības, kuras laikā mainās atbilstoši vienādojumiem:\n\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.\n\nMaiņstrāvas frekvence , kur\n\nv – frekvence, Hz;\nT – m","content_type":"","title":null,"shrink":null},{"type":"particle","particle_id":414530,"object_id":"TomsMiezis1355682937","particle_type":"bodytext","picture":null,"text":"MAIŅSTRĀVAS PĀRVADE - \nGaru elektroenerģijas pārvades līniju galvenais uzdevums\nir pārvadīt elektroenerģiju tā, lai būtu iespējami mazāki jaudas\nzudumi siltuma veidā, ko pēc Džoula Lenca likuma Q = I2R\nelektroenerģijas pārvades līnija neizbēgami izkliedē apkārtnē.\nPastāv divas iespējas, kā šos zudumus samazināt. Var\npalielināt elektrības vadu šķērsgriezuma laukumu S, tādējādi\nsamazinot vadu pretestību R = rlS\nun līdz ar to arī siltuma\ndaudzumu, ko līnija zaudē. Piemēram, nemainot pa līniju pārvadīto jaudu, bet palielinot\nspriegumu 10 reizes, strāvas stiprums jau var būt 10 reizes\nmazāks. Tad jaudas zudumi, ko rada vadu sasilšana, samazinās\njau 100 reizes.","content_type":"","title":null,"shrink":null},{"type":"particle","particle_id":414528,"object_id":"TomsMiezis1355682934","particle_type":"bodytext","picture":null,"text":"MAIŅSTRĀVAS RAŽOŠANAS VIETAS LATVIJĀ - \nLatvijā vienotu elektrotīklu pārvalda akciju sabiedrība\n“Latvenergo”. Tā katru gadu nodrošina kopējo elektroener-\nģijas piegādi aptuveni 7 miljardu kilovatstundu apjomā. Aptuveni 70% no Latvijā patērētās elektroenerģijas saražo visi\nLatvijā esošo elektrostaciju ģeneratori.Latvijā elektropārvades līniju kopējais garums pārsniedz\n20 000 km. Elektropārvades līnijas savieno savā starpā gan\nelektrostacijas, gan elektroenerģijas patērētājus.Pieaugošās patērētāju prasības pēc elektroenerģijas liek\nmeklēt papildus ražošanas iespējas. Triju lielo Daugavas kaskādes elektrostaciju jaudu palielināt nevar. Elektroenerģijas\ndeficītu radīs arī Lietuvā esošās Ignalinas atomelektrostacijas\nplānotā slēgšana.\nŠādos apstākļos interesi izraisa vēl citi iespējamie elektroenerģijas avoti. Latvijā jau darbojas vairāki vēja ģeneratori.\n.","content_type":"","title":null,"shrink":null},{"type":"particle","particle_id":414520,"object_id":"TomsMiezis1355682421","particle_type":"quote","picture":null,"text":"Latvijas energo:","content_type":"","title":"Latvijas energobilance ir parādīta tabulā, kura ir zemāk redzamajā attēlā, Latvijas energo Tiek izmantoti dažādi enerģijas resursi, piemēram, naftas produkti, dabas gāze, kurināmā koksne un ogles. 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