A 15-kVA 8000/230-V distribution transformer has an impedance referred to the primaryof 80 + j3000. The components of the excitation branch referred to the primary side areRC = 350 kn and XM = 70 k. (a) If the primary voltage is 7967 V and the loadimpedance is ZL = 3.0 +j1.5 №, what is the secondary voltage of the transformer? What isthe voltage regulation of the transformer? (b) If the load is disconnected and a capacitorof-j4.0 2 is connected in its place, what is the secondary voltage of the transformer?What is its voltage regulation under these conditions?

a. The turns ratio of the transformer is determined as a=8000230=34.78 The load impedance referred…

A 15-kVA 8000/230-V distribution transformer has an impedance referred to the prima of 80+ j3000. The components of the excitation branch referred to the primary side ar RC = 350 kN and XM = 70 kQ2. (a) If the primary voltage is 7967 V and the load impedance is ZL = 3.0 +j1.5 2, what is the secondary voltage of the transformer? Wha the voltage regulation of the transformer? (b) If the load is disconnected and a capacito of-j4.0 N is connected in its place, what is the secondary voltage of the transformer?

A 15-kVA 8000/230-V distribution transformer has an impedance referred to the prima of 80+ j3000. The components of the excitation branch referred to the primary side ar RC = 350 kN and XM = 70 kQ2. (a) If the primary voltage is 7967 V and the load impedance is ZL = 3.0 +j1.5 2, what is the secondary voltage of the transformer? Wha the voltage regulation of the transformer? (b) If the load is disconnected and a capacito of-j4.0 N is connected in its place, what is the secondary voltage of the transformer?

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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