, (.2.26):
.2.26.
.2.27 bL bC, b = = bL + bC.
; ; . 62(2.52)
.2.27.
:
. 63(2.53)
.2.28.
, , , , , (.2.29).
.2.29.
. .
, .2.30 .
.2.30.
u = Umsinwt ; φu φI = j.
φu=0 i = Imsin(wt j).
:
.64(2.54)
p(wt):
.2.31. ,
ωt
, . , - . , wt. :
. 65(2.55)
. [].
:
S = UI. 66(2.56)
[×].
P/S = cosj .
, ( ) :
Q = QL QC = UIsinj 67(2.57)
[]. :
68(2.58)
(2.32.a) (.2.14), :
:
ab P = URI = I2R = UIcosj;
bc Q = QL QC = (UL UC)I = I2(XL XC) = UIsinj;
ac .
.2.32.
()
(b)
, . (2.32.b):
c ab P = IRU = I2g = UIcosj;
bc Q = QL QC = (IL IC)U = U2b = UIsinj;
|
|
ac ;