查磁化曲线得

T

B

dcba

56

.

0

=

∴

Wb

Wb

dcba

4

4

10

24

.

2

10

4

56

.

0

−

−

×

=

×

×

=

Φ

∴

(

)

Wb

Wb

aghd

4

4

10

59

.

0

10

65

.

1

24

.

2

−

−

×

=

×

−

=

Φ

∴

T

T

B

aghd

12

.

0

10

5

10

59

.

0

4

4

=

×

×

=

−

−

查磁化曲线得

m

A

H

aghd

80

=

∴

A

A

F

aghd

60

75

.

0

80

=

×

=

∴

右边线圈应加磁动势

(

)

A

A

F

F

F

aghd

ad

28

.

1234

60

28

.

1294

2

=

−

=

−

=

  (2) 

0

=

ad

F

     

m

A

m

A

l

F

H

dcba

dcba

3000

5

.

0

1500

1

=

=

=

查磁化曲线得

T

B

dcba

5

.

1

=

∴

Wb

Wb

dcba

4

4

10

6

10

4

5

.

1

−

−

×

=

×

×

=

Φ

∴

Wb

dcba

aghd

4

10

6

−

×

=

Φ

=

Φ

∴

T

T

B

aghd

2

.

1

10

5

10

6

4

4

=

×

×

=

−

−

查磁化曲线得

m

A

H

aghd

1270

=

∴

A

A

F

aghd

952

75

.

0

1270

=

×

=

∴

右边线圈应加磁动势

A

A

F

F

aghd

952

75

.

0

1270

2

=

×

=

=

(3) 由题意得

dcba

ad

Φ

=

Φ

由

(1)、(2)可知

Wb

Wb

ad

4

4

10

24

.

2

10

65

.

1

−

−

×

<

Φ

<

×

取

Wb

ad

4

10

75

.

1

−

×

=

Φ

则

T

T

B

B

ed

af

7

.

0

10

5

.

2

10

75

.

1

4

4

=

×

×

=

=

−

−