A 120V (rms), 60Hz three-phase system is supplying power to the following two loads: Load # 1: A balanced load connected in wye with 100ohm resistance and 0.1H inductor connected in series. Load # 2: A balanced load connected in delta with 100ohm resistance and 10uF capacitor connected in series. Draw a circuit diagram and Determine: (i) Total active and reactive power supplied to load # 1 by the system (ii) Total active and reactive power supplied to load # 2 by the system (iii) Magnitude of the total current supplied by the source (iv) Source power factor

A 120V (rms), 60Hz three-phase system is supplying power to the following two loads: Load # 1: A balanced load connected in wye with 100ohm resistance and 0.1H inductor connected in series. Load # 2: A balanced load connected in delta with 100ohm resistance and 10uF capacitor connected in series. Draw a circuit diagram and Determine: (i) Total active and reactive power supplied to load # 1 by the system (ii) Total active and reactive power supplied to load # 2 by the system (iii) Magnitude of the total current supplied by the source (iv) Source power factor

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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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

A 120V (rms), 60Hz three-phase system is supplying power to the following two loads:

Load # 1: A balanced load connected in wye with 100ohm resistance and 0.1H inductor connected in series.

Load # 2: A balanced load connected in delta with 100ohm resistance and 10uF capacitor connected in series.

Draw a circuit diagram and Determine:

(i) Total active and reactive power supplied to load # 1 by the system

(ii) Total active and reactive power supplied to load # 2 by the system

(iii) Magnitude of the total current supplied by the source

(iv) Source power factor

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The circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical three-phase network of 380 V compound voltage. The loads are single phase. Load 1 absorbs an active power of 950 W with f.d.p. 0.5 inductive. Load 2 absorbs an active power of 1,140 W with f.d.p. Unit. Load 3 absorbs from the network an active power of 760 W with f.d.p. 0.5 capacitive. Taking the network voltage URN as the phase reference, calculate: a) complex expressions of the line currents IR. Is. and IT
The circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical three- phase network of 380 V compound voltage. The loads are single phase. Load 1 absorbs an active power of 950 W with f.d.p. 0.5 inductive. Load 2 absorbs an active power of 1,140 W with f.d.p. Unit. Load 3 absorbs from the network an active power of 760 W with f.d.p. 0.5 capacitive. Taking the network voltage URN as the phase reference, calculate: a) complex expressions of the line currents IR. Is. and IT RO- SO TO IR Is IT U₁-380 V CARGA 1 P₁ =950 W cos p1=0,5 ind. CARGA 2 P₂=1.140 W cos p₂=1 CARGA 3 P3=760 W cos p3=0,5 cap.
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