1. R, L.
f) R ZK
=
. 1.2 - R = , ;
~ U
Z =----------, .
~ I
l = /ZK R2 = L, , L =, ,
= 2/ - , /; f = 50 - .
2. G (1.1), BL (1.2).
3. (1.3), = BL - BC ( . 1.1 !), f = 50 , . 1.1.
4. P, S, cos
. 1.1.
() , ,
P = Ik R, .
S = UI,
. cos = pg, = arccos(cos ).
5. , .
() BL=Bc, ^ j = 0)(- '
, 0 - .
6. I=f(C), cos =f(C).
() (,'j ()
cos . 1.1.
7. < 0, = 0, > 0.
1. .
2. .
3. ?
4. ?
5. .
6. ³ ?
7. ?
8. .
2 ˲ ̲ 'Ͳ ײ Dz
' .
'.
' .
|
|
(|)
, , 1/3 .
ϳ , . = 0, . , . , , , .
' , .
' ', , , z ' , , (. 2.1).
. 2.1. ' |
N ' .
. . ˳ . . 2.1 - , , , - ^, , . ʳ, , , ' :
= - ; = - ; = - . (2.1)
, , 2/3 (120),
=/3. (2.2)
: - = 0; - = -2/3 (-120); - = -4/3
(-240).
, , . , . . 2.1, '
= . (2.3)
ʳ (. 2.1)
= + + I. (2.4)
( ) , .
= = = ; = = = ; = = = ;
Q = Q = Q = ; ^ = = ^ = , (2.5)
.
, ' , . . , 90 (. 2.2, ). . 120, 240. , ' , .
|
|
= 0, . ,
= + 1 + I = 0.
, . . . 2.2, . (2.4).
, ' , ' . (. 2.2, ), .
(. 2.2, ), , . ,
, .
. 2.2. ' : - ; - ; - ; -
, ( ,
' ). . .
, . 2.2, . n.
, , , ' übe, n N . .
) 1. . 2.3. . 2.3. |
, -9. SAl, $>2. 53. V , . 2, 3 , 4 - .
2. , , ˲, 2, 3 , ().
3. .
4. , , , , , , , ( , ). . 2..
2.1
|
. - ; 2 - ; 3 - ; 4 - ; 5 - . |
|
|
5. ³ ( 3) , .
6. ( ˲, 2) .
7. , , ' . .
1. . 2. . (J) , = 0. , |
= U COS = U . ^ = + P^ + Pc.
3. .
1. ' ' ?
2. , . ?
3. ' .
4. ?
5. ?
6. , ?
7. ?
8. .
.
, .
(|||)
- ( ).
. 3.1. : 1 - ; 2 - |
, , 1, 2 (. 3.1). , , .
|
|
3˲ |
( ) . , -
. ³
= |
wl
(3.1)
W 2
(), (). , , - , .
1, 1 (. 3.2). , , . , , , ,
= ( 8 ز) = -^2 008ز.
ij
2 = 4,44>2, (3.2)
/ - .
, 䳺 2 2. . , , .
. 3.2. |
, , , , ų, 2.
ʳ , ' :
U2 = 2 + 2 -2R2, R2 - .
w1 > w2, U2 < U1, . 2 > 1.
w1 < w2, U2 > U1, , 2 < 1.
, , , .
, -
1 = U1I1 cos 1, (3.3)
1 - .
,
2 = U2I2COS , (3.4)
cos - , U2 - .
2 1 . .
= + - 1 -
- , ' 㳿 .
, , . ϳ 䳺 , , ' .
- .
= 1 + 2 = 2 1 +12 1,12 - , ; 1, 2, - .
= 2. (35)
: , .
, , , , , , .
|
|
, 2 = 0, 3-8% , . , 0, ,
~ 2 , 0 .
3-10% , . ,
- .
, 2, cos1, 䳿 , 1
= 7^, (3.6)
2
2 - .
. 3.3.
. 3.3.
,
:
_ . ___________________ /
1 J ' 2 J ' V ' /
1 2
- .
1. , . 3.4. |
. 3.4. |
(), .
Wl 1, 1 1 . , , 3 2 2 2 2.
2. , , , ( ).
3. , 3, 10 = 1. . 3.1.
3.1
|
4. , 2 5. , ( ). ӳ . , (1 (3.7)). . 3.2.
3.2
|
5. , , 5, 1 = 1. . 3.3. , ' . , .
3.3
|