11.48 Determine the complex power for the following cases: (a) P = 269 W, Q = 150 VAR (capacitive) (b) Q = 2000 VAR pf = 0.9 (leading) (c) S = 600 VA, Q = 450 VAR (inductive) (d) Vms = 220 V, P = 1 kW, |Z| = 40 N (inductive) %3D %3D %3D %3D

11.48 Determine the complex power for the following cases: (a) P = 269 W, Q = 150 VAR (capacitive) (b) Q = 2000 VAR pf = 0.9 (leading) (c) S = 600 VA, Q = 450 VAR (inductive) (d) Vms = 220 V, P = 1 kW, |Z| = 40 N (inductive) %3D %3D %3D %3D

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

Capacitor

The capacitor is an element used to store electrical energy in the electrical field. A capacitor is a form of passive energy.

Question

HW20
11.48 Determine the complex power for the following
cases:
(a) P = 269 W, Q = 150 VAR (capacitive)
(b) Q = 2000 VAR pf = 0.9 (leading)
(c) S = 600 VA, Q = 450 VAR (inductive)
(d) Vms = 220 V, P = 1 kW,
|Z| = 40 2 (inductive)

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