A 150kVA, 2400/240-V single phase transformer equivalent circuit is shown below. X i'2 *G Rel V...

Transcribed Image Text:

A 150kVA, 2400/240-V single phase transformer equivalent circuit is shown below. X₁ i'2 *G Rel V₁ R₁ E₂ N₁: N₂ X₂ V₁ iz The equivalent circuit parameters are given below: R₁ = 0.2 0,X₁ = 0.450, R₂ = 0.0020, X2 = 0.00450, R1 = 10000, Xm1 = 15000 a) Find the primary voltage V₁ and current 11 when the transformer is operating at full load with 0.8 power factor lagging and at 240V. d) Determine the approximated equivalent circuit below: I a:1 HV Zeq=Z₁+a¹Z₂ b) Determine efficiency of the transformer under the loading condition given in (a). c) Find the secondary voltage under no load and hence voltage regulation when the primary voltage is maintained at value obtained in step (a). 1 R₂ V₂ V₂ LV A 150kVA, 2400/240-V single phase transformer equivalent circuit is shown below. X₁ i'2 *G Rel V₁ R₁ E₂ N₁: N₂ X₂ V₁ iz The equivalent circuit parameters are given below: R₁ = 0.2 0,X₁ = 0.450, R₂ = 0.0020, X2 = 0.00450, R1 = 10000, Xm1 = 15000 a) Find the primary voltage V₁ and current 11 when the transformer is operating at full load with 0.8 power factor lagging and at 240V. d) Determine the approximated equivalent circuit below: I a:1 HV Zeq=Z₁+a¹Z₂ b) Determine efficiency of the transformer under the loading condition given in (a). c) Find the secondary voltage under no load and hence voltage regulation when the primary voltage is maintained at value obtained in step (a). 1 R₂ V₂ V₂ LV