Plastic Casing Current Transformer Core

Description

It is well known that the higher Current Transformer Core Permeability, the lower measurement error & higher measurement accuracy, The silicon steel Current Transformer Core can not get enough measurement accuracy under the situation of low Ampere-turns of small turn ratios. And the Fe-Ni Permalloy Core’s application are limited because of their low magnetization and high cost. Nano-crystalline cores are getting wider usage for the accuracy grade precious current transformer, because of its high permeability, high magnetization and lower cost in the field of power supply systems, power energy measurement and controlling systems, etc.

characteristics

High Permeability & High Saturation induction Bs - Increase Current Transformer’s accuracy, leavel, smaller volume & High Linearity. Good Temperature stability -- Keep stable from -55℃ to 120℃ for long time.

Performance Index

Item

Performance

Saturation Induction Bs(T)

1.25

Curie Temperature Tc(℃)

570

Crystalline Temperature Tx(℃)

500

Hardness Hv

800

Initial Permeability (μ0)

>12x104

Saturation Magnetostriction

2.0x10-6

Density (g/cm3)

7.2

Resistance Ratio (μΩ.cm)

130

Thickness(μm)

28~35

Stacking factor

≥0.75

compare with silicon steel

Specification

Part No.

core dimension

finished dimension

od

Id

Ht

Od

id

ht

NR-0004

19

14

6.5

22.5

12

9

NR-0007

21

16

10

23.8

14.5

12.5

NR-0008

20

14

10

23.5

12.5

12.5

NR-0012

26

19

10

29

16.5

12.5

NR-0014

40

30

10

43

27.5

12.5

NR-0017

40

30

15

43

27.5

17.5

NR-0019

83

38

40

88

34

45

NR-0020

71

39

33

76

35

38

NR-0021

70

42

30

75

38

35

NR-0022

68

45

30

73

41

35

NR-0023

68

45

25

73

41

30

NR-0024

78

60

25

83

56

30

NR-0025

80

60

30

85

56

35

NR-0026

82

63

30

87

59

35

NR-0027

70

40

25

75

36

30

NR-0028

82

45

50

87

41

55

NR-0029

82

45

30

87

41

35

NR-0030

85

45

60

90

40

65

NR-0031

85

50

30

90

46

35

NR-0032

80

50

35

85

46

40

NR-0033

86

60

40

91

56

45

NR-0034

78

60

35

83

56

40

NR-0038

115

85

20

120

81

25

NR-0119

78

60

30

83

56

35

NR-0120

88

50

40

93

46

45

NR-0121

120

95

20

125

91

25

NR-0122

83

30

50

88

26

55

NR-0123

80

50

30

85

46

35

NR-0125

80

50

25

85

46

30

NR-0126

90

73

30

95

69

35

NR-0128

90

43

40

95

39

45

NR-0129

88

60

35

93

56

40

NR-0130

110

90

45

115

86

50

NR-0131

100

75

20

105

71

25

NR-0137

115

85

25

120

81

20

NR-0138

120

95

15

125

91

20

NR-0139

120

85

20

125

81

25

NR-0078

265

210

10

275

203

17

NR-0079

220

180

20

227

172

25

NR-0080

220

180

30

227

172

35

NR-0086

560

470

12

572

458

18

Property

H(mA/cm

B(Gs)

μ(×104)

0.39

50

10.20224012

0.77

100

10.33473674

1.39

200

11.4499961

1.85

300

12.90445507

2.27

400

14.02246

2.62

500

15.18654

2.87

600

16.63641

3.16

700

17.62792121

3.38

800

18.83490483

3.61

900

19.83925917

3.81

1000

20.88647583

4.01

1100

21.82923

4.38

1300

23.61888

5.06

1700

26.73551461

5.35

1900

28.2611586

5.57

2100

30.00227883

5.86

2300

31.23347913

6.11

2500

32.56034

6.34

2700

33.88946

6.57

2900

35.12552

6.82

3100

36.17157859

7.05

3300

37.24902987

7.28

3500

38.25840043

7.56

3700

38.94664679

7.85

4000

40.54903

8.22

4300

41.62812

8.64

4600

42.36764

9.04

4900

43.13380722

9.41

5200

43.97479905

9.84

5500

44.47927855

10.29

5800

44.85416354

10.74

6100

45.19763

11.06

6300

45.32894

11.43

6500

45.25403

11.97

6800

45.20691861

12.51

7100

45.16387351

12.85

7200

44.58815602

13.31

7400

44.24292258

13.79

7600

43.85706

14.36

7800

43.22453

14.98

8000

42.49798

15.66

8200

41.6689194

16.43

8400

40.68477008

17.2

8600

39.78873645

18.31

8800

38.24586355

19.47

9000

36.78466

20.15

9100

35.93821

20.98

9200

34.89575

21.8

9300

33.94818798

22.74

9400

32.89482169

23.68

9500

31.92508415

24.73

9600

30.89137646

25.95

9700

29.74572

27.43

9800

28.43089

29

9900

27.1661

30.7

10000

25.92100095

32.63

10100

24.63170323

35.3

10200

22.99405733

38.17

10300

21.47361726

41.47

10400

19.95673

45.36

10500

18.42071

50.25

10600

16.78649

53.67

10700

15.86508217

58.59

10800

14.6686586

62.5

10900

13.87831127

68

11000

12.8728265