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ɂɡɦɟɪɢɬɟɥɶɧɵɟ ɬɪɚɧɫɮɨɪɦɚɬɨɪɵ ɬɨɤɚ ɫɟɪɢɢ &7 Ɍɨɱɧɨɫɬɶ ɤɨɦɩɚɤɬɧɨɫɬɶ ɢ ɧɚɞɟɠɧɨɫɬɶ

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M ®

23

11

2

1

1 2

2

1

2

1

1

2b

2a

2

1

M2M–

2

––––

––

1)

2)

4)

6)

1)

2)

4)

6) 2 2

Tmax

Emax

20

60

200

600

2000

6000

\

\ \ \

\ \ \ \ \

\ \

60x20 \ \ \ \

\ \ \ \

A

B CF GØ

E

D

2

2

60 2

2

200

2

2

60 2

2

200

B E

22

A

BCF HGØ

E

L

D

6

600

6

600

B E

60x20

– –

20

60

6

6

600

20

20

2000

6

600

20

2000 20

20

20

6

600

2000

600

20

20

20

2000

2

6000

2000

20

20 2

20

2

6

60 2

2

6

600

A D

E

F

BC

G

L

M

H

ON L L O PL

MM H

N

H

H

H

N

A

D

E

B F G

C

B E

– – – – – – –

– – – – –

2 – –

– – – –

– – – – – – –

– – – –

– – – – 20 – – – –

– – – – – – – –

– – – – – – – –

B E

1 2 3 4 5

2

r2 x 3,14 rr

r + r 5,5 + 5,5

5

4

3

2

1

0

-1

-2

-3

-4

-5

F % Corrente nominale

0,05 0,1 0,2 1 1,2 2 3 4 5

Sovracorrente in trasformatoridi misura fino a Fs 5

Fs 5

Saturazione magnetica

Curva a 1/4 dell’impedenza nominaleCurva a impedenza nominale

2

46

482

± 1 ± ± ± ± ± ± ±1 ± 2 ± ± 1 ± 1 ± ± ± ±

2 2