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SOLVED: The figure below shows the equivalent circuit diagram for a single-phase transformer with a supply voltage of 230V. Using the following parameters: R = 38.72, X = 48.350, R2 = 38.70, X2 = 48.350, Rfe = 14.5kÎ©, and Xm = 4.74kÎ©. The transformer ratio is 1.92:1, and assuming PF = 1, calculate the following variables at the primary:a) Phase Voltage Vphb) Phase current Iphc) Power per phase Pphd) Power factor per phase PFphe) Line Voltage V.

SOLVED: The figure below shows the equivalent circuit diagram for …

2023年6月8日

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A 25-kVA, 2400 / 240-V, 60-Hz, single-phase transformer has an equivalent series impedance of 3.45+j 5.75 Ωreferred to the primary highvoltage side. The core loss is 120 W. When the transformer is delivering rated kVA to a load at rated secondary voltage and a 0.85 lagging power factor, find the percent voltage regulation and the efficiency of the transformer. | Numerade

A 25-kVA, 2400 / 240-V, 60-Hz, single-phase transformer has an …

A single-phase 50-kVA, 2400 / 240- volt, 60-Hz distribution transformer is used as a step-down transformer at the load end of a 2400 -volt feeder whose series impedance is (1.0 j 2.0) ohms. The equivalent series impedance of the transformer is (1.0 j 2.5) ohms referred to the highvoltage (primary) side. The transformer is delivering rated load at a 0.8 power factor lagging and at a rated secondary voltage. Neglecting the transformer exciting current, determine (a) the voltage at the transformer

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