What is the difference between the per-unit negative sequence circuits for a Y − Y configured transformer and a Δ − Δ connected transformer? a. The circuits are identical. b. There is a phase shift in the Δ − Δ transformer. c. The Y − Y transformer has a neutral grounding impedance Zn.
What is the difference between the per-unit negative sequence circuits for a Y − Y configured transformer and a Δ − Δ connected transformer? a. The circuits are identical. b. There is a phase shift in the Δ − Δ transformer. c. The Y − Y transformer has a neutral grounding impedance Zn.
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
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.16MCQ: In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across...
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What is the difference between the per-unit negative sequence circuits for a Y − Y configured transformer and a Δ − Δ connected transformer?
a. The circuits are identical.
b. There is a phase shift in the Δ − Δ transformer.
c. The Y − Y transformer has a neutral grounding impedance Zn.
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