, , , ,
1. ΔU , U2H = 400 , U2 = 380 .
:
ΔU .
, cos φ2.
98, cos φ 2 = 1 ( 1) cos φ 2 = 0,8 - ( 2), , - , .
ΔU , U2 U2 .
ΔU , , , , , .
ΔU . ΔU .
98
99, . A U1 =U'2 , , I 1 = I2 = 0,
99, . U'2 U1 , I1zK U1 U2 ΔU.
, U'2 ABC, U = I1r Up = I1x, U = I1z. U'2 U1, U1 U'2 = ΔU
(. 100). U2 , U1 ,
99
a ,
U 1 U'2. AD = = AU.
, OD, . BF, OD, F.
ΔU = AF + + FM+MD. MD AF FM, ΔU AF FM, . . ΔU = AF + FM.
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BL, OD, L. BL = FM.
CBL AFB. CLB LCB 2 , CL ┴ OD, a ┴ I 1; FAB FAB φ2, OD I 1.
Ua U ,
k ;
U% U% , SH, U .
Ua% , . .
I1
(), SH - (), 1000
, a S . Uk% U%, U%
ΔU% cos φ2 = 0,8 UK = 5,5 ÷10,5% 48% U.
101 100 , U = 6300/220 cosφ2.
ΔU - , - . - (. . 94).
2. ΔU% S = 100 , cos φ2 = 0,8, U = 5,5%, = 2400 .
. Ua%:
U%:
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