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CORES FOR POWER TRANSFORMERS

For the supply of electrical devices and equipments in the industrial range today almost exclusively switched mode power supplies, which supply one or more DC output voltages, are used.Different converter principles are in use, depending upon the power range.Flyback converters (to approx. 500 W), single ended forward transformers (to approx. 1000 W) or push-pull converters (up to the kW range) are common.

Particularly for push-pull converters, toroidal tape-wound cores made of the nanocrystalline material VITROPERM are recommended. Advantages over ferrites are achieved by the substantially higher induction swing (high Bs) in connection with low hysteresis losses: lower weight, smaller volume, higher efficiency and an extended temperature range (to 120 °C) with negative coefficient. The advantages mentioned are the more distinctive, the larger the transferred power is.

Besides the standard series, customized cores in oval or rectangle shape as well as toroids up to approx. 600 mm outside diameter are available. Please contact us.

Further information about our Cut Cores made of VITROPERM 500 is available in our product information. The datasheets of the available nanocrystalline cut cores can be found here.

Main fields of application are (particularly apart from the power supplies of medium power) kilowatt power supplies for  traction applications, e.g. battery chargers, frequency converters or solar inverters. Additional fields of application are within almost all ranges of industrial power supplies in the KW range, where increasingly IGBT technology is used. Further applicational information can be foundhere

VAC-Product

Core dimensions

Limit dimensions (incl. case or coating)

Effective cross section

Mean path length

Core mass

AL

Effective winding space

Turn length

Heat transfer

 

da x di x h

Da

Di

H

AFe

lFe

mFe

bei 10 kHz typisch

ACu

lCu

Rth

 

mm x mm x mm

mm

mm

mm

cm2

cm

g

µH

cm2

cm

K / W

T60004-L2016-W373

16 x 10 x 6

17.6

8.3

8

0.14

4.08

4.3

10

0.2

3.18

33

T60004-L2020-W374

20 x 12.5 x 8

22

10.5

10

0.24

5.11

9

13

0.32

3.97

23

T60004-L2025-W375

25 x 16 x 10

27

14

12

0.36

6.44

17

16

0.58

4.8

16

T60004-L2030-W376

30 x 20 x 15

32.3

17.8

17.8

0.57

7.85

33

20

0.93

6.41

11

T60004-L2040-W433

40 x 25 x 15

42.3

22.5

17.3

0.86

10.2

64

23

1.49

7.21

7.5

T60004-L2050-W434

50 x 40 x 20

52.3

37.1

22.8

0.76

14.1

79

15

4.05

9

4.5

T60004-L2052-W827

52 x 40 x 25

54.3

37.1

27.8

1.14

14.5

121

22

4.05

10.2

4.1

T60004-L2055-V045

55 x 40 x 25

57.5

37.1

27.8

1.43

14.9

156

26

4.05

10.5

3.9

T60004-L2063-W435

63 x 50 x 25

65.6

46.6

27.8

1.24

17.8

161

19

6.4

11.1

3.1

T60004-L2080-W436

80 x 63 x 25

83.5

59.3

27.8

1.62

22.5

267

20

10.4

12.6

2.2

T60004-L2100-W342

100 x 80 x 25

104.5

74.5

28.5

1.9

28.3

395

19

16.4

14.6

1.6

T60004-L2130-W352

130 x 100 x 25

135.5

94.5

28.5

2.85

36.1

757

22

26.3

17.2

1.1

T60004-L2160-W758

160 x 110 x 25

165

105

28.5

4.75

42.4

1480

31

32.5

19.9

0.8

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Last update: 13.01.2016