Chapman 3.63-6.A 15-kVA 8000/230-V distribution transformer has an impedance referred to the primary of 80 +j300 2.The components of the excitation branch referred to the primary side are R₁ = 350k and X₁ = 70 km2.(a) If the primary voltage is 7967 V and the load impedance is Z₁ = 3.2 +j1.5 2, what is the secondaryvoltage of the transformer? What is the voltage regulation of the transformer?(b) If the load is disconnected and a capacitor of 3.5 2 is connected in its place, what is the secondaryvoltage of the transformer? What is its voltage regulation under these conditions?

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Chapman 3.6 3-6. A 15-KVA 8000/230-V distribution transformer has an impedance referred to the primary of 80 +j300 2. The components of the excitation branch referred to the primary side are R = 350 k2 and X₁ = 70 k. (a) If the primary voltage is 7967 V and the load impedance is Z1 = 3.2 +j1.5 2, what is the secondary voltage of the transformer? What is the voltage regulation of the transformer? (b) If the load is disconnected and a capacitor of 3.5 2 is connected in its place, what is the secondary voltage of the transformer? What is its voltage regulation under these conditions?

Chapman 3.6 3-6. A 15-KVA 8000/230-V distribution transformer has an impedance referred to the primary of 80 +j300 2. The components of the excitation branch referred to the primary side are R = 350 k2 and X₁ = 70 k. (a) If the primary voltage is 7967 V and the load impedance is Z1 = 3.2 +j1.5 2, what is the secondary voltage of the transformer? What is the voltage regulation of the transformer? (b) If the load is disconnected and a capacitor of 3.5 2 is connected in its place, what is the secondary voltage of the transformer? What is its voltage regulation under these conditions?

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.63P: A 23/230-kV step-up transformer feeds a three-phase transmission line, which in turn supplies a...

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