b)c)EcIn Figure B1, the three phase, delta connected load is supplied from abalanced, star connected supply where the phase voltages are 230volts rms.If Zab = Zbc = Zca = 10 + j6 :A fault occurs in the above system, such that Zab becomes an opencircuit (infinite impedance). Calculate the new values for themagnitudes of the line currents la, lb and lc.E aEbIaIbIclabZablbc ZbcZcaIca

Answered: Image /qna-images/answer/fdce6519-a92c-4f1f-b902-8120b7986086.jpg

c) A fault occurs in the above system, such that Zab becomes an open circuit (infinite impedance). Calculate the new values for the magnitudes of the line currents la, lb and lc. Ea Eb Ia Ib Ic lab Zab Ibc Zbc Zca Ica

c) A fault occurs in the above system, such that Zab becomes an open circuit (infinite impedance). Calculate the new values for the magnitudes of the line currents la, lb and lc. Ea Eb Ia Ib Ic lab Zab Ibc Zbc Zca Ica

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.52P: A balanced three-phase load is connected to a 4.16-kV, three-phase, fourwire, grounded-wye dedicated...

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Concept explainers

Distribution System

The final stage in the delivery of the electric power is the electric power distribution system. From the transmission system to the individual customers it carries electricity. The distribution system is connected with the transmission system and is used to lower the voltage of the transmission to medium voltage in the range of 2 kV to 35 kV with the help of transformers. This medium voltage to the distribution transformers located near the customer's premises is carried by the primary distribution system lines. These distribution transformers in turn lower the voltage to utilization voltage used in lightings, household appliances, industrial equipments etc. Through secondary distribution lines often several customers are supplied from one transformer. It is through service drops, the commercial and residential customers are connected to the secondary distribution system lines. Customers who demand a larger amount of power can be connected directly to the primary distribution system level or the sub-transmission level.

Question

b)
c)
Ec
In Figure B1, the three phase, delta connected load is supplied from a
balanced, star connected supply where the phase voltages are 230
volts rms.
If Zab = Zbc = Zca = 10 + j6 :
A fault occurs in the above system, such that Zab becomes an open
circuit (infinite impedance). Calculate the new values for the
magnitudes of the line currents la, lb and lc.
E a
Eb
Ia
Ib
Ic
lab
Zab
lbc Zbc
Zca
Ica

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