A 3-phase generator (30 MVA, 13.8 KV, 0.15) supplies two motors (rated at 20 MVA, 12.8 KV, 20%, and 10 MVA, 12.8 KV, 20%, respectively) through a step-up transformer - transmission line - step- down transformer arrangement. The 3-phase transformers are rated at 35 MVA, 13.2 KV-A/115 KV-Y with 10 % leakage reactance. The line reactance is 80 ohms. Draw the equivalent per unit reactance diagram by selecting 30 MVA, 13.8 KV in the generator circuit. Also, calculate the current supplied by the source and the currents of each motor
A 3-phase generator (30 MVA, 13.8 KV, 0.15) supplies two motors (rated at 20 MVA, 12.8 KV, 20%, and 10 MVA, 12.8 KV, 20%, respectively) through a step-up transformer - transmission line - step- down transformer arrangement. The 3-phase transformers are rated at 35 MVA, 13.2 KV-A/115 KV-Y with 10 % leakage reactance. The line reactance is 80 ohms. Draw the equivalent per unit reactance diagram by selecting 30 MVA, 13.8 KV in the generator circuit. Also, calculate the current supplied by the source and the currents of each motor
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:A 3-phase generator (30 MVA, 13.8 KV, 0.15) supplies two motors (rated at 20 MVA, 12.8
KV, 20%, and 10 MVA, 12.8 KV, 20%, respectively) through a step-up transformer -
transmission line - step- down transformer arrangement. The 3-phase transformers are
rated at 35 MVA, 13.2 KV-A/115 KV-Y with 10 % leakage reactance. The line reactance is 80
ohms. Draw the equivalent per unit reactance diagram by selecting 30 MVA, 13.8 KV in
the generator circuit. Also, calculate the current supplied by the source and the currents
of each motor
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