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Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
book

Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition

by John G. Webster, Halit Eren
February 2014
Intermediate to advanced content levelIntermediate to advanced
1921 pages
82h 13m
English
CRC Press
Content preview from Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
24-16 Electrical Variables
e previous expression is, in fact, a general denition of power factor for any current and voltage wave-
forms
. F
or
t
he
s
pecial
c
ase
o
f
si
nusoidal
v
oltage
a
nd
c
urrents,
P
F
r
educes
to c
os(ϕ)
.
e
re
ar
e
a nu
mber
of wa
ys
to me
asure
th
e
po
wer
fa
ctor
. On
e
wa
y
is to us
e
a wa
ttmeter
to me
asure
th
e
re
al
av
erage
po
wer
an
d
a vo
ltmeter
an
d
an am
meter
to me
asure
th
e
rm
s
vo
ltage
an
d
cu
rrent,
re
spec-
tively
. e po
wer
fa
ctor
is th
en
de
termined
ac
cording
to Eq
uation
24.22. i
s
is pr
obably
th
e
mo
st
e
ec-
tive
wa
y
wh
en
th
e
cu
rrents
an
d/or
vo
ltages
ar
e
no
nsinusoidal
. i
s
pr
ocedure
ca
n
ea
sily
be im
plemented
wi
th
“d
igital
po
wer
me
ters
.” e ...
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Publisher Resources

ISBN: 9781439848913