A balanced 3-phase load of 23.5 MVA with PF=0.85 lagging is supplied with a balanced 3-phase source of 12.5 kV (line-to-line). Determine:VLL, IL, and VLN,The phase angle between phase voltage and current, θ,S3ϕ, S3ϕ, P3ϕ, and Q3ϕ,ZY if load is wye and ZΔ if load is delta,What size capacitor bank (in kVAR) would need to be installed to increase the PF to 0.9 lagging. A balanced 3-phase load of 23.5 MVA with PF=0.85 lagging is supplied with a balanced 3-phase source of12.5 kV (line-to-line). Determine:1. VLL, IL, and VLN;2. The phase angle between phase voltage and current, 0,3. S3p, S3p, P3p, and Q3p,4. Zy if load is wye and Za if load is delta,5. What size capacitor bank (in KVAR) would need to be installed to increase the PF to 0.9 lagging.

Answered: A balanced 3-phase load of 23.5 MVA…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

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A balanced 3-phase load of 23.5 MVA with PF=0.85 lagging is supplied with a balanced 3-phase source of 12.5 kV (line-to-line). Determine:

V_LL, I_L, and V_LN,
The phase angle between phase voltage and current, θ,
S₃_ϕ, S₃_ϕ, P₃_ϕ, and Q₃_ϕ,
Z_Yif load is wye and Z_Δ if load is delta,
What size capacitor bank (in kVAR) would need to be installed to increase the PF to 0.9 lagging.

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