... sunt realizate din aluminiu 2. Tratarea proiectului 2.1 Inalta conexiune Y EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 Joasa conexiune Y EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 - puterea nominala pe faza, trasferata de reteaua primara in circuitul secundar 2.2 Diametrul coloanei EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 Alegem diametrul coloanei EMBED Equation.3 - Aria coloanei EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 Inaltimea coloaneiPentru Sn63kVA iau EMBED Equation.3 Inaltimea bobinei EMBED Equation.3 2.3 Numarul de spire EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 i1710101795.5 iau i1800spireSectiunile conductoarelor EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 Proiectarea bobinajelorBobinajul pe joasa tensiuneIau conductor de EMBED Equation.3 cu izolatie EMBED Equation.3 Aranjarea spirelor pe inaltimea EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 Solutie adoptata-iau 2 straturi complete a 35 spire.35spire EMBED Equation.3 10mm350mm, cu joc iau 360mm EMBED Equation.3 , cu joc iau aj15mm Bobinajul de inalta tensiune EMBED Equation.3 Aranjarea spirelor pe inaltimea EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 Dispunerea bobinelor2.7 Determinarea preliminara a reactantei inductive de scapari EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 2.7.1 Determinarea caderii de tensiune reactiva EMBED Equation.3 2.7.2 Determinarea caderii de tensiune activa si reactiva in EMBED Equation.3 EMBED Equation.3 Verificare EMBED Equation.3 uk impus este de 4, eroarea este de 2, sub EMBED Equation.3 10 admis de STAS.2.8 Corectarea - nu este cazul. 2.9 Calculul rezistentelor infasurarilor si a pierderilor in infasurari EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 In datele de proiectare am Pk1350 si eu am obtinut Pt1245.86, adica -7.7, sub EMBED Equation.3 10 admis de STAS.2.l0 Construirea triunghiului de scurtcircuit EMBED Equation.3 EMBED Equation.3 2.11Calculul pierderilor in fier2.11.1 Greutatea coloanelor EMBED Equation.3 EMBED Equation.3 2.11.2 Pierderi in coloane EMBED Equation.3 2.11.3 Greutatea juguriloraii30mmxajaiaij EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 2.11.4 Pierderi in juguri EMBED Equation.3 2.11.5 Pierderi totale EMBED Equation.3 In datele de proiectare am P0200, si eu am obtinut Pt183.81, adica -8.095, care se incadreaza in eroarea de EMBED Equation.3 10 admisa de STAS.2.11.6 Componenta activa a curentului EMBED Equation.3 2.12. Puterea necesara magnetizarii coloanelor EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 2.12 Componenta reactiva a curentului de gol EMBED Equation.3 2.13.Curentul EMBED Equation.3 EMBED Equation.3 2.14. Incalzirea bobinajelor 2.14.1 Calculul incarcarii termice Calculul suprafetelor de cedare a caldurii de catre bobine EMBED Equation.3 Incarcarea termica EMBED Equation.3 Avand in vedere ca am obtinut EMBED Equation.3 nu este necesara o corectie.2.15 Calculul cuvei 2.15.1. Determinarea dimensiunilor interioare EMBED Equation.3 EMBED Equation.3 EMBED Equation.3 2.15.2. Determinarea suprafetei cuvei netede EMBED Equation.3 2.15.3. Determinarea suprafetei de radiatie aria cu ondule EMBED Equation.3 unde am considerat EMBED Equation.3 , pentru cuve cu ondule. 2.15.4 Calculul ariei de convectie EMBED Equation.3 2.15.5 Calculul volumului interior al cuvei EMBED Equation.3 2.15.6 Calculul volumului de aluminiu necesar EMBED Equation.3 2.15.7 Calculul volumului izolatiei EMBED Equation.3 2.15.8 Calculul volumului de ulei necesar transformatorului EMBED Equation.3 EMBED Equation.3 2.15.9 Calculul volumului de ulei EMBED Equation.3 2.15.10 Calculul volumului de ulei necesar transformatorului EMBED Equation.3 2.15.11 Calculul greutatii uleiului EMBED Equation.3 2.15.12 Calculul greutatii cuvei Aleg pentru peretii cuvei tabla de fier cu g7mm. EMBED Equation.3 2.15.13 Calculul conservatorului si al caruciorului EMBED Equation.3 Iau g5mm EMBED Equation.3 Pentru carucior aleg 4 profile L cu g15mm si 4 roti de fier, de diametru D90mm, prevazute cu rulmenti.Apeciez greutatea caruciorului EMBED Equation.3 2.16ObservatiiPentru circuitul magnetic am folosi materialul numit ORSI 080-23, cu- B1.65 T- q1.1 VA- pc1 kgAm luat coeficientul lui Rogovskikr1 Zinopqaaaaaaataas-ajQhVqCJUVaJmHnHsHtHajh8EHUaj6
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