Three identical loads with complex impedance are connected to a 3-phase network 230V/400V,50Hz. 1- The three loads are coupled in delta shape (triangle). The power is measured using the two watmeters method with W1=2740 W aand W2=980 W A- Calculate the total active and reactive power. B- Calculate the rms value of the line current C- Find the magnitude of the complex impedance Z.

Three identical loads with complex impedance are connected to a 3-phase network 230V/400V,50Hz. 1- The three loads are coupled in delta shape (triangle). The power is measured using the two watmeters method with W1=2740 W aand W2=980 W A- Calculate the total active and reactive power. B- Calculate the rms value of the line current C- Find the magnitude of the complex impedance Z.

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 2.7P: Let a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor,...

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Concept explainers

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.

Question

Three identical loads with complex impedance are connected to a 3-phase network 230V/400V,50Hz.

1- The three loads are coupled in delta shape (triangle). The power is measured using the two

watmeters method with W1=2740 W aand W2=980 W

A- Calculate the total active and reactive power.

B- Calculate the rms value of the line current

C- Find the magnitude of the complex impedance Z.

2- The three louds are now connected in star shape.

A- Using the value of Z found in 1)c, calculate the rms value of the line current I.

b- Calculate the total active power and reactive power

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