,
4.4.1. ?
, . ,
4.4.2. ?
http://scask.ru/book_b_toe1.php?id=134
4.4.3. ?
(. 3.14) φ (, , .. φ > 0). , UAB . , . İA İab 30, İB İbc, İC İca.
4.4.4. ?
(3.32) P = Pab + Pbc + Pca,
(3.33)
Pab = Uab Iab cos φab; Pbc = Ubc Ibc cos φbc; Pca = Uca Ica cos φca;
Uab, Ubc, Uca; Iab, Ibc, Ica ;
φab, φbc, φca .
(3.34) Q = Qab + Qbc + Qca,
(3.35) Qab = Uab Iab sin φab; Qbc = Ubc Ibc sin φbc; Qca = Uca Ica sin φca.
(3.36) Sab = Uab Iab; Sbc = Ubc Ibc; Sca = Uca Ica.
4.4.5. , ?
. , , (. 6.16 6), . , , . , , , , , - . [2]
5
5.4.1. ?
, . 4.3, , . . .
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|
, , , . .
5.4.2. ?
.
, 0 1. , , .
;
;
.
5.4.3. ?
( - R, - - RC, - RL).
, U1 cos φ2 .
5.4.4. ?
. . 1 2 :
. . . : , , , :
5.4.5. , ?
, , , , . ,