In the single line diagram shown below, generators G₁ and G₂ have a leakage reactance of 0.26 per unit on a 66.5MVA rating at 11kV, and transformers T₁ and T₂ have a voltage ratio of 11/145kV and a leakage reactance of 0.125 per unit on a 75MVA rating. Choosing 100MVA and 132kV (at the lines side) as base quantities, find the reactance of G₁, G₂, T₁ and T2 in per unit to the new base quantities. TELELE

In the single line diagram shown below, generators G₁ and G₂ have a leakage reactance of 0.26 per unit on a 66.5MVA rating at 11kV, and transformers T₁ and T₂ have a voltage ratio of 11/145kV and a leakage reactance of 0.125 per unit on a 75MVA rating. Choosing 100MVA and 132kV (at the lines side) as base quantities, find the reactance of G₁, G₂, T₁ and T2 in per unit to the new base quantities. TELELE

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

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.61P

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Draw three transformers for each of the different three-phase connections. That is, draw three transformers and then make the connection, eg star-star, then redraw three transformers and make another three-phase connection, and so on until all four combinations of three-phase connections are made.
Topic: Special Transformers and Three-Phase Transformers
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