A microwave with ratings shown in Figure 2 is being supplied with a single phase 120 VAC, 60 Hz source. SAMSUNE HOUSEHOLD MICROWAVE OVEN 416 MAETANDONG, SUWON, KOREA MODEL NO. SERIAL NO. 120Vac 60HZ USTED MW85OWA 71NNBO0010 Kw 1.2 MICROWAVE (U a MANUFACTURED: NOMEMEER-2000 FCC ID: THIS PRODUCT COMPLIES WITH DHHS RULES 21 CFR SUBCHAPTER J. A3LMW850 MADE IN KOREA SEC Figure 2 Given that the device is operating at rated conditions and has a power factor of 0.8 lagging, a) Find the instantaneous current drawn from the source when plugged in. b) Find the equivalent impedance of the microwave as seen by the source. c) Calculate the new and improved power factor if a 250 µF capacitor is inserted in parallel with the supply. d) Draw a phasor diagram showing the following parameters after the capacitor is inserted (calculate where necessary): i. The source current, Is

A microwave with ratings shown in Figure 2 is being supplied with a single phase 120 VAC, 60 Hz source. SAMSUNE HOUSEHOLD MICROWAVE OVEN 416 MAETANDONG, SUWON, KOREA MODEL NO. SERIAL NO. 120Vac 60HZ USTED MW85OWA 71NNBO0010 Kw 1.2 MICROWAVE (U a MANUFACTURED: NOMEMEER-2000 FCC ID: THIS PRODUCT COMPLIES WITH DHHS RULES 21 CFR SUBCHAPTER J. A3LMW850 MADE IN KOREA SEC Figure 2 Given that the device is operating at rated conditions and has a power factor of 0.8 lagging, a) Find the instantaneous current drawn from the source when plugged in. b) Find the equivalent impedance of the microwave as seen by the source. c) Calculate the new and improved power factor if a 250 µF capacitor is inserted in parallel with the supply. d) Draw a phasor diagram showing the following parameters after the capacitor is inserted (calculate where necessary): i. The source current, Is

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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L-type equivalent circuit and parameters for a continuous sinusoidal phase of a 5.5 kW, 1450 rpm, line voltage 220 V and frequency 50 Hz star-connected 3-phase ASM, ignoring core (iron) losses given as follows: R1=0.21 Ohm, R2=0.18 Ohm, X1=X2=0.66 Ohm and Xm=9.9 Ohm How many times the inrush current will be the rated current when the ASM is started directly?
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5.5 kW, 1450 rpm. L-type equivalent circuit and parameters for a continuous sinusoidal phase of a star connected 3-phase ASM with line voltage 220 V and frequency 50 Hz are given as follows, ignoring core (iron) losses: R1=0.21 Ohm, R2=-0.18 Ohm, X1=X2-0.66 Ohm and Xm = 9.9 Ohm How many times the inrush current will be the rated current when the ASM is started directly? Answer options group 8.0815 2.6455 4.3763 7.1534 1.2558 6.3414 5.2280 3.7473
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