11.85 A regular household system of a single-phase three- wire circuit allows the operation of both 120-V and 240-V, 60-Hz appliances. The household circuit is modeled as shown in Fig. 11.96. Calculate: (a) the currents I₁, I2, and I,, (b) the total complex power supplied (c) the overall power factor of the circuit

11.85 A regular household system of a single-phase three- wire circuit allows the operation of both 120-V and 240-V, 60-Hz appliances. The household circuit is modeled as shown in Fig. 11.96. Calculate: (a) the currents I₁, I2, and I,, (b) the total complex power supplied (c) the overall power factor of the circuit

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.

Question

11.85 A regular household system of a single-phase three-
wire circuit allows the operation of both 120-V and
240-V, 60-Hz appliances. The household circuit is
modeled as shown in Fig. 11.96. Calculate:
(a) the currents I₁, I₂, and I,
(b) the total complex power supplied
(c) the overall power factor of the circuit
120/0° V
120/0° V
In
1₂
10 22
10 Ω
15 mH
wwww
wwwm
Lamp
30 92
Refrigerator
www
Kitchen ramp

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Step 1: Given data:-

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Step 2: Calculating Inductive reactance:-

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Step 3: Calculating small currents:-

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Step 4: (a) Calculating the currents:-

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Step 5: (b) Complex power supplied:-

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Step 6: (c) Power factor:-

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