E 100 V 290° ST= ST= ISTI P+= Q+= = Load 1 200 VAR (L) OW untis units units units Calculate the total current and power factor Is = pf = Load 2 600 VAR (C) 100 W lagging or leading Load 3 0 VAR 300 W units units units

E 100 V 290° ST= ST= ISTI P+= Q+= = Load 1 200 VAR (L) OW untis units units units Calculate the total current and power factor Is = pf = Load 2 600 VAR (C) 100 W lagging or leading Load 3 0 VAR 300 W units units units

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter3: Magnetic Starters

Section: Chapter Questions

Problem 30SQ

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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

solve for the total complex, apparent, average, and reactive power

E 100 V 290°
ST=
ST=
ISTI
P+=
Q+=
=
Load 1
200 VAR (L)
OW
untis
units
units
units
Calculate the total current and power factor
Is =
pf =
Load 2
600 VAR (C)
100 W
lagging or leading
Load 3
0 VAR
300 W
units
units
units

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