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Permalloy Tape Wound Core

Permalloy Toroidal Core

Permalloy Toroidal Core

Feature:
*Core material and grades: Ni、Fe and Mo alloy (abbr:permalloy or nickel iron alloy ,or mumetal alloy)
*Material grades:1J77,1J79,1J85
*Ultra-high initial permeability, high volt-ampere output.
*high sensity for feeble current ,min.detection current up to 0.1mA
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Feature:

*Core material and grades:  Ni、Fe and Mo alloy (abbr:permalloy or nickel iron alloy ,or mumetal alloy)

*Material grades:1J77,1J79,1J85

*Ultra-high initial permeability, high volt-ampere output.

*high sensity for feeble current ,min.detection current up to 0.1mA

*Low coercive force

*excellent thermal stability ,small error drift for -25-+75℃

 

Application:

1)precision current transformers for energy metering systems

2)zero phase current transformers for GFCI,AFCI,ALCI

3)hall current transformers for AC/DC current metering

4) ZCT for Residual current circuit breakers (RCCBs)

5)ZCT for Earth leakage circuit breakers(ELCBs)

6) Differential(mA) current sensors.

 

Basic physical parameters for permalloy:

Material brand

strip thickness

(mm)

Saturation flux density

(T)

coertivity

Hc(A/m)

density

(g/cm3)

Stacking

factor

(%)

resistivity

 

curie

temprature

Tc()

1J79

0.1-0.25

0.75

≤1.2

8.75

0.9

55

410

1J85

0.1-0.25

0.7

≤0.8

8.75

0.9

55

410


 

Electrical characteristics for permalloy tape wound cores

Material brand

Test conditions

Initial permeability

(Gs/Oe)

Max. permeabiity

(Gs/Oe)

1J79

50HZ,1mOe

25,000

150,000

1J85

50HZ,1mOe

40,000

200,000

 

Size:

Permalloy tape wound cores Dimension:  

No.

Core size

Volt-ampere
     characteristics

Output volt

Remarks

ID/OD*H

50Hz,N1:N2=1:1

Vo

(mm)

Input current Iin(mA)

(mV)

1

10.5/13.5*3.2

30mA

0.20mV


2

13/17*3.2

50mA

0.3mV


3

14/19*6.5

20mA

0.12mV


4

13/17.8*5

50mA

0.9mV


5

18/23*3.2

50mA

0.3mV


6

20/30*10

50mA

1.8mV


7

20/30*15

50mA

2.8mV


8

24.2/37.8*15

50mA

3.0mV


9

26/32*3.2

100mA

0.5mV


10

26/32*5

100mA

0.90mV


11

27/32*2.5

50mA

0.15mV


12

30/40*10

120mA

3.8mV


13

32.5/37.5*5

100mA

0.9mV


14

32/50*10

50mA

2.0mV


15

32/50*15

50mA

2.08mV


16

33/38*3.2

50mA

0.2mV


17

36.5/42*2.5

50mA

0.14mV


18

36/42*3.2

100mA

0.50mV


19

39/45*3.2

100mA

0.50mV


20

52.5/60*6.5

100mA

0.50mV


21

53/57*4

100mA

0.20mV


22

53/58*4

100mA

0.25mV


23

53/59*4

100mA

0.30mV


24

55/62*4

100mA

0.40mV


25

58/63*5

100mA

0.30mV


26

61/69*10

100mA

0.70mV


27

66/70*4

200mA

0.50mV


28

77/84*8

100mA

0.30mV


29

90/96*10

100mA

0.3mV


30

100/110*8

100mA

0.3mV


 

Permalloy Laminition Cores Dimension:

No.

Core size

Volt-ampere
     characteristics

Output volt

Remarks

ID/OD*thick*PCS

50Hz,N1:N2=1:1

Vo

(mm)

Input current Iin(mA)

(uV)

1

8.8/12.2*0.35*5

20mA

60uV

 

2

9.8/12.8*0.35*5

20mA

65uV

 

3

14/19*0.35*8

20mA

70uV

 

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