1. Three identical impedances of 10∟53.1o ohms are connected in delta to a threephase three-wire 240 volt ABC system. Find the line currents and the total power.

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 3.43P: Three single-phase transformers, each rated 10MVA,66.4/12.5kV,60Hz, with an equivalent series...
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1. Three identical impedances of 10∟53.1o ohms are connected in delta to a threephase three-wire 240 volt ABC system. Find the line currents and the total power.
2. A balanced star load with impedances of 6∟45o ohms is connected to a threephase, four-wire, 208 volt, ABC system. Find the line currents, the neutral 
current, the power per phase and the total power (S, P, Q).
3. A 460- volt three-phase source supplies a balanced load of 200 kW at a lagging 
power factor of 0.707, and the two wattmeters are properly connected to 
measure the total power. Calculate a) line currents, b) reading of the wattmeters.
4. In a balanced 230-volt three-phase circuit two wattmeters are connected to 
indicate power. If the readings are 8140 W and -2980 W, calculate the power 
factor and the line currents

 

 

PLS ANWER THIS THIS IS MY LAST QUESTIONS I CANT ASK ANYMORE PLSS BEGGING TO THE EXPERT PLSSS 

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