, ,

  1. ( )
  2. ( )
  3. ()
  4. cosφ

w (, ), , , , , , , . . :

.(1)

 

:

.(2)

 

, , :

.(3)

 

, , 2 .

, (. . 1), u i , .. , .

, , . , t .

.

, , (3) :

.(4)

 

, , ( ), , .. . =0, , , .

( )

(. . 2) , , ..


()

. (3) .

1-2: , , .

2-3: , .

()

. . (3) , . , (=0), . : , . , L , R , .

, .

:

(5)

 

( - ) ( - ). - ().

:

, .

.

, . :

.

:

.(6)

 

, :

.(7)

 

. , . ,

.(8)

 

, , . , . :

,(9)

 

- , .

.

(. . 4). . 4 (- ), :

.

cosφ

, . , , , , . .

, (, , ) - .

(. . 5), , , (. 6), , .. , ( , ) . .

, ?

. :

;(10)
;(11)
.(12)

 

(11) (12) (10)

,

, :

.(13)

 

 

.

)

:

(14)

 

: , , , .

, (14) +, . (14) , -, , (, ).

) .

, , ..

(15)

 

( ), :

 ,(16)

 

+ , - .

(16) j (15), ( ):

.

  1. ?
  2. , ?
  3. ?
  4. ?
  5. ?
  6. - , . , .
  7. : =250 ; Q=433 ; S=500 .

  8. , R L, I=2 A. U=100 B, =120 . R XL .
  9. : R=30 ; XL=40 .

  10. , , , =90 . I1=5 A, I2=4 A. R XL .
  11. : R=10 ; X=7,5 .

  1. : . /.., .., .., ... 5- ., . .: , 1989. -528.
  2. .. : . . , . 7- ., . . .: . ., 1978. 528.


, " " ( , !), , . FAQ .


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