Consider a 3-phase transmission line operating at 66 KV and connected through a 1000 KVA transformer with 5% reactance to a generating station bus-bar. The generator is of 2500 KVA with 10% reactance. The single line diagram of the system is shown in Figure beside. Suppose a short-circuit fault between three phases occurs at the high voltage terminals of transformer. Suppose we choose 2500 kVA as the common base kVA. The fullt load current corresponding to 2500 KVA base at 66 kV in ampere is:
Consider a 3-phase transmission line operating at 66 KV and connected through a 1000 KVA transformer with 5% reactance to a generating station bus-bar. The generator is of 2500 KVA with 10% reactance. The single line diagram of the system is shown in Figure beside. Suppose a short-circuit fault between three phases occurs at the high voltage terminals of transformer. Suppose we choose 2500 kVA as the common base kVA. The fullt load current corresponding to 2500 KVA base at 66 kV in ampere is:
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:Consider a 3-phase transmission line operating at 66 kV and connected through a 1000 KVA transformer with 5%
reactance to a generating station bus-bar. The generator is of 2500 kVA with 10% reactance. The single line diagram of
the system is shown in Figure beside. Suppose a short-circuit fault between three phases occurs at the high voltage
terminals of transformer. Suppose we choose 2500 kVA as the common base kVA.
The fullt load current corresponding to 2500 kVA base at 66 kV in ampere is:
2500 VA
10%
Select one
A 21 87
B. 131 22
CC 227 27
D.37.57
A11 PM
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