A 150 KVA, 0.4/250 kV testing transformer has 10% leakage reactance and 4% resistance on 150 kVA base. A cable has to be tested for 500 kV using this transformer at a resonant frequency of 50 Hz. If the charging current of the cable at 500 kV is 0.4 A. Assuming 1.5% resistance for the inductor to be used and the connecting leads and neglecting dielectric loss of the cable, calculate: 1.2.1 The series inductance required 1.2.2 The input voltage of the transformer and power (kW).

A 150 KVA, 0.4/250 kV testing transformer has 10% leakage reactance and 4% resistance on 150 kVA base. A cable has to be tested for 500 kV using this transformer at a resonant frequency of 50 Hz. If the charging current of the cable at 500 kV is 0.4 A. Assuming 1.5% resistance for the inductor to be used and the connecting leads and neglecting dielectric loss of the cable, calculate: 1.2.1 The series inductance required 1.2.2 The input voltage of the transformer and power (kW).

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

Chapter8: Symmetrical Components

Section: Chapter Questions

Problem 8.39P

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