High -current zero-sequence current Transformer

※ High sensitivity

※ Close to zero load shift and zero phase shift

※ Excellent balance characteristic                

※ Perfect temperature stability

※ Small change for output voltage after passing the heavy current IDC

※ A variety of configuration and output characteristics 

Application:

※ 100-800A Breaker

According to:                                                                       

 

 

 

High -current zero-sequence current Transformer

 

Model 

A
(min)

B
(max)

C
(max)

D
(max)

E
(±0.2)

F
(±0.3)

G
(±0.2)

CT401

15.00

29.20

10.00

31.70

50.00

4.00

9.00

CT402

17.50

35.90

8.80

37.10

50.00

4.00

23.90

CT403

29.00

51.00

12.00

54.20

30.00

4.00

15.00

CT404

32.00

55.60

12.00

49.50

40.00

4.00

 

CT405

42.00

69.00

20.00

79.80

100.00

4.00

 

CT406

51.30

84.00

26.00

84.00

40.00

4.00

 

CT407

51.00

96.00

23.00

89.50

100.00

4.00

 

CT408

19.00

36.00

11.50

39.00

100.00

4.00

 

CT409

24.00

42.00

12.00

44.00

100.00

4.00

 

CT410

43.00

90.00

16.00

73.50

100.00

4.00

 

Model 

Rated current 
(A)

Output characteristic

Coil Dielectric Withstanding  Voltage
(V)

Balance characteristic  

Iin(mA)

RL(Ω)

Vo(mv)

Vb(mv)

CT401

100

22.5

1000

17~21

1200

<10mV

CT402

125

20

370

6.3~6.7

1200

<3mV

CT403

250

22.5

1000

17~21

1200

<10mV

CT404

250

22.5

1000

17~21

1200

<10mV

CT405

400

22.5

1000

17~21

1200

<10mV

CT406

600

22.5

1000

17~21

1200

<10mV

CT407

630/800

22.5

1000

17~21

1200

<10mV

CT408

100

100

150

25~30

1200

<15mV

CT409

225

100

150

25~30

1200

<15mV

CT410

400

100

150

25~30

1200

<15mV