ELEKTRIVARUSTUS - Energia- ja geotehnika doktorikool II

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TTÜ elektriajamite ja jõuelektroonika instituut Elektrivarustus Raivo Teemets Kõrgepingeliini näide ElVar Sissejuhatus. RT hor 2012.doc Leht: 13 / 20 TTÜ elektriajamite ja jõuelektroonika instituut Elektrivarustus Raivo Teemets • Keskpingevõrkude e. jaotusvõrkude kaudu toimub piirkonniti elektrienergia laialijaotamine ja muundamine madalpingele. Nende võrkude nimipinge on üle 1 kV ja ulatub kuni 35 kV. Keskpingevõrgu liini lõpumast koos mastalajaamaga ElVar Sissejuhatus. RT hor 2012.doc Leht: 14 / 20
TTÜ elektriajamite ja jõuelektroonika instituut Elektrivarustus Raivo Teemets • Jaotusvõrkude liinide pikkus Eestis on üle 60 000 km, alajaamu ca 20 000 ja tarbijaid umbes 500 000. Nende korrashoid nõuab suuri rahasummasid, mis oluliselt määravad ka elektrienergia hinna. • Madalpingevõrkude kaudu saab enamik tarbijaid oma toite. Madalpingevõrkude hulka kuuluvad ka madalpingepaigaldised, mis tagavad lõpptarbijatele elektrienergia kohaletoimetamise. Madalpingeõhuliinid ElVar Sissejuhatus. RT hor 2012.doc Leht: 15 / 20 TTÜ elektriajamite ja jõuelektroonika instituut Elektrivarustus Raivo Teemets • Oluline faktor elektrivarustuse juures on elektrivõrgu koormusel, mis on ajas muutuv, sõltuv ilmastikutingimustest ja osaliselt stohhastilise iseloomuga. P max 3 P kesk 2 P min 0 0 6 12 18 24 h 1 Energiasüsteemi ööpäevane koormusgraafik ElVar Sissejuhatus. RT hor 2012.doc Leht: 16 / 20
Page 1 and 2: ELEKTRIAJAMITE JA JÕUELEKTROONIKA
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TTÜ elektriajamite ja jõuelektroo
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L1 L2 L3 PEN TTÜ elektriajamite ja
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Tallinna Tehnikaülikool Raivo Teem
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Pinge Pikaajalised katkestused Flik
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ELEKTRIVARUSTUS - Energia- ja geotehnika doktorikool II

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