In a 3-phase, 4-wire system, two phases have currents of 10A and 6 A in lagging power factors of 0.8 and 0.6 respectively, while the third phase is open-circuited. Calculate the current in the neutral and sketch the vector diagram. |Ans. 7 <- 73° 241

In a 3-phase, 4-wire system, two phases have currents of 10A and 6 A in lagging power factors of 0.8 and 0.6 respectively, while the third phase is open-circuited. Calculate the current in the neutral and sketch the vector diagram. |Ans. 7 <- 73° 241

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

Chapter14: Power Distribution

Section: Chapter Questions

Problem 14.19P

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Concept explainers

Z parameter

The Z-parameters that are the impedance parameters of a two-port network are defined by expressing the two-port voltages V1 and V2 in terms of two-port currents I1 and I2. The Z-parameters are calculated by open circuiting one of the two ports at a time henceforth they are called open-circuit impedance parameters.

Question

In a 3-phase, 4-wire system, two phases have currents of 10A and 6 A in lagging power factors of 0.8 and
0.6 respectively, while the third phase is open-circuited. Calculate the current in the neutral and sketch
the vector diagram.
|Ans. 7 L- 73° 247

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