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ID number:465488
 
Author:
Evaluation:
Published: 22.06.2022.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Extract

Punktu kopskaits- 10
Aprēķināt trīsfāžu transformatora sekundāros līnijas spriegumus U2l , ja primāras līnijas spriegums U1l=420V, transformācijas koeficients k=w1/w2=3 un tinumu slēgumi ir šādi : ∆ /Y.

U21 = 420/3= 140 V

Trīsfāžu divtinumu transformatoram ar nominālo jaudu 630kVA un tinumu savienojumu shēmu Y/Δ nominālais primārais un sekundārais spriegums ir attiecīgi U1N = 10 000V un U2N = 400V. Atrast primāra un sekundāra tinuma nominālos fāžu spriegumus, līnijas un fāžu strāvas, transformācijas koeficientu, kā arī sekundārā tinuma reducēto strāvu.

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