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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
22-16 Electrical Variables
e other two insertions are indicated by the following convention: S
ijk
indicates a reading performed
wi
th
th
e
cu
rrent
le
ads
co
nnected
to th
e
li
ne
i” an
d
th
e
vo
ltmeter
le
ads
co
nnected
be
tween
th
e
ph
ases
j” an
d
k.” If “i” is eq
ual
to “j,” on
e
is om
itted
(e.g., th
e
no
tation
P
12
(Figure 22.17b). e active power
ab
sorbed
b
y
a si
ngle
p
hase
i
s
u
sually
r
eferred
to a
s
P
1
.
e wa
ttmeter
re
ading
co
rresponding
to th
e
(c
)
ca
se
in Fi
gure
22.17 is eq
ual
to th
e
re
active
po
wer
Q
1
in
volved
in ph
ase
1, sa
ve
fo
r
th
e
fa
ctor
3
. Hence, in the case of symmetrical and balanced systems, the
ov
erall
r
eactive
p
ower
i
s
g
iven
b
y
Q Q
P
P= = =3
1
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Publisher Resources

ISBN: 9781439848913