A 3-phase Y-connected source (400V) supplies a 3-phase Y-connected load (3xZload = 27 + 9.0 ohm) via a non-ideal, three-core cable. No neutral line is available. Each conductor of the cable has an impedance Zcable = 80 + 2.1 mOhm a. Measure the phase shift angle between line voltage and phase voltage.
A 3-phase Y-connected source (400V) supplies a 3-phase Y-connected load (3xZload = 27 + 9.0 ohm) via a non-ideal, three-core cable. No neutral line is available. Each conductor of the cable has an impedance Zcable = 80 + 2.1 mOhm a. Measure the phase shift angle between line voltage and phase voltage.
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 3.36P: Three single-phase two-winding transformers, each rated 25MVA,34.5/13.8kV, are connected to form a...
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A 3-phase Y-connected source (400V) supplies a 3-phase Y-connected load (3xZload = 27 + 9.0 ohm) via a non-ideal, three-core cable. No neutral line is available. Each conductor of the cable has an impedance Zcable = 80 + 2.1 mOhm
a. Measure the phase shift angle between line voltage and phase voltage.
b. Because of a fault, one of the three load impedances changes to half its original value. What happens to the phase voltages at the load.
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