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?
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Transcribed Image Text: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 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 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?
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