SA9105F

sames

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Figure 1: Application Circuit for Three Phase Power/Energy Measurement.

25

21

22

23

24

31

28

26

29

27

30

37

36

35

33

34

32

39

38

40

VI 2 N

9

S A 91 05 F

DIP - 4 0

IC - 1

D R- 0 0951

C7

C8

VI 3 P

VI 3 N

0V

R2 0

C1 2

15

16

XT AL

19

18

20

17

R1 2

10

R1 3

14

13

12

11

C6

C5

FROM CTs

VI 2 P

VI 1 N

VI 1 P

N

LIN E 3

R1 9

R1 8

0V

M AI NS VOL TAGES

LIN E 2

LIN E 1

R3

R3 A

3

4

R9

R1 0

R1 1

R8

5

6

8

7

1

2

C4

R2

R1

R2 A

R1 A

R5

P5

0V

0V

R1 4

P1 4

C1 3

0V

C1 1

FOU T 1

DIR

FOU T 2

R6

P6

0V

C1 4

0V

R4

R2 1

C3

C1

C2

+

+

+

C1 0

R1 7

R1 6

R1 5

C9

R7

5V