220V 100W L 1.006H 220V 60HZ 3pF

Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter4: Symbols
Section: Chapter Questions
Problem 3SQ: What do the following abbreviations stand for? a. SPST b. SPDT c. DPST d. DPDT e. NO f. NC
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a. Using Ohm’s Law, compute the voltage and current for each
component. Use the formula Z = Vt / It.

b. Compute and record the magnitude and phase angle of the impedance
using the equation Z= R + RL + jXL – JXC. Use 3uF for the value of C,
1.006H for the value of L and for the resistance is computed based on
the specification of the lamp.

c. Compute and record for the total power using the formula: Pcomputed = Scosθ

d. Compute and record the reactive power and apparent power using the
formula

Scomputed = V2/Z
Qcomputed = √S2 − P2

e. Compute for the reactive power (measure) and apparent power
(measured) using the formula.
Q = Ptanθ
S = P/ cos θ

f. Compute the percent difference between the measure and the computed
value of the impedance.

220V
100W
L
1.006H
220V
60HZ
3pF
Transcribed Image Text:220V 100W L 1.006H 220V 60HZ 3pF
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