System Model and Per Unit T1 Line T2 BE ji0/km BE 31.25miles 3C Impedance Load R1.jXi.-0.1+j0.5 p.u. 30 MVA 14 kV 30 MVA 13 kV TYA X-0.1 p.u. 13/220 kV X-0.2 p.u. 35 MVA * Transformer T2 is composed of "three single-phase" transformers, each rated 40/3 MVA, 132.8:14 kV with a leakage reactance of 0.1 per unit. (a) Fill in the appropriate base values. Gen. G Trans T Line Trans. Ta Load New MVA Base New KV Base (b) Calculate the impedance values. Gen G Trans. T1 Line Trans. T2 Load Pu. Impedance

System Model and Per Unit T1 Line T2 BE ji0/km BE 31.25miles 3C Impedance Load R1.jXi.-0.1+j0.5 p.u. 30 MVA 14 kV 30 MVA 13 kV TYA X-0.1 p.u. 13/220 kV X-0.2 p.u. 35 MVA * Transformer T2 is composed of "three single-phase" transformers, each rated 40/3 MVA, 132.8:14 kV with a leakage reactance of 0.1 per unit. (a) Fill in the appropriate base values. Gen. G Trans T Line Trans. Ta Load New MVA Base New KV Base (b) Calculate the impedance values. Gen G Trans. T1 Line Trans. T2 Load Pu. Impedance

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

What is the definition of zero sequence impedance in transformer? What is the benefit of zero sequence impedance in transformers?
3.8. Three identical 9-MVA, 7.2-kV/4.16-kV, single-phase transformers are con- nected in wye on the high-voltage side and delta on the low voltage side. The equivalent series impedance of each transformer referred to the high-voltage side is 0.12 + j0.82 S per phase. The transformer supplies a balanced three- phase load of 18 MVA, 0.8 power factor lagging at 4.16 kV. Determine the line-to-line voltage at the high-voltage terminals of the transformer.
In a single phase transformer, when no-load voltage is 230V and full load terminal voltage is 220, then the percentage regulation is 4.54%. Select one: True False
2. Given three identical ideal single-phase transformers with each rated at 100KVA and 7kV/3.5kV, they are connected as a three-phase transformer bank. The three-phase transformer has high voltage side connected in delta and the low voltage side is connected in wye. A three-phase 200KVA, wye connected load is connected at the low voltage side of the transformer. Calculate the following: a. Rated line-to-line voltage on each side b. Line current on each side of the transformer
Two single-phase transformers, having equal turns ratio, in parallel supply a secondary load of 1,000 A at 0.8 pf lagging. For each transformer the secondary emf on open circuit is 3,300 V and their total leakage impedances referred to secondary are (0.10 + j0.20) ohms and (0.05 + j0.040) ohm, respectively. Determine the output current on each transformer.
In a single phase transformer, when no-load voltage is 230V and full load terminal voltage is 220, then the percentage regulation is 4.54%. Select one: True False
what is the definition of zero sequence impedance in a transformers? And what is the benefit of this check in transformers?