PML have the facility to make cores of various sizes in nano crystalline and amorphous material with ribbon thickness 25-35 microns.
The cores are made on automatic core winding machine to give very high production rate.
The cores are finally heat treated in controlled atmosphere in our high tech furnace to achieve optimum material performance.
Later cores are then plastic encapsulated or epoxy coated as per the customer requirement and tested 100% for quality performance on core sorting machines and dispatched.
Nano crystalline soft magnetic material is a new development. The material composition is 82% iron with the remaining balance silicon, boron, niobium, copper, carbon, molybdenum, and nickel. Nano crystalline cores for common mode choke. The raw material is manufactured and supplied in an amorphous state. It is recrystallized into a precise mix of amorphous and Nano crystalline phases when annealed, giving the material it's unique magnetic properties. Electricity meter core.
Comparing with the traditional core material, such as silicon steel and perm alloy, Iron based nano crystalline alloy takes the advantage of high permeability and low cost, and is thus more competitive in the application of precise current transformer with 0.2, 0.2s, and 0.1 accuracy class. This material has the best overall performance over a broad range of frequencies when compared to other available materials. Nano Ferrite smart meter core. It's relatively high saturation flux density, combined with its incredible low loss and high permeability through a wide frequency range, makes it useful in many applications
Range of standard Core sizes
Part No.
Core Dimensions ODXIDXH
Finished Dimensions ODXIDXH
CT Accuracy
DC Compliance
E-NA10-P-08-R0
20X14X10
22.5X12.1X12.2
0.5-0.1 Class
20 - 40 A
E-NA10-P-11-R0
21X15X10
23.6X12.8X12.8
0.5-0.1 Class
10 - 40 A
E-NA8-P-23-R0 A
24X15.5X8
26.3X13.7X9.9
0.5 - 0.1 Class
60A
E-NA10-P-12-R0
21X16X10
24.7X14.0X12.5
0.5 - 0.1 Class
40-60A
-NA10-P-13-R0
23X16X10
25.0X14.0X13.0
0.5 - 0.1 Class
40-60A
E-N8A-P-24-R0 A
25X16X8
27.8X13.7X10.8
0.5 -0.1 Class
60A
E-NA10-P-13-R0
22X17X10
24.4X15.3X12.3
0.5 -0.1 Class
60A
E-NA10-P-13-R0 A
22X17X10A
24.4X15.3X12.3
0.5 -0.1 Class
30A
E-NA8-P-18-R0
24X17X8
26.3X15.3X9.9
0.5 -0.1 Class
60A
E-NA10-P-14-R0
25X17X10
28.0X15.6X12.8
0.5 -0.1 Class
80A
E-N10-P-14-R0 A
25X17X10A
28.0X15.6X12.8
0.5 -0.1 Class
100A
E-NA8-P-19-R0
28X17X8
29.8X15.2X10.1
0.5 -0.1 Class
65A
E-NA8-P-20-R0 A
28X17X8A
29.8X15.2X10.1
0.5 -0.1 Class
100A
E-NA10-P-15-R0
24X18X10
26.6X15.8X12.8
0.5 -0.1 Class
60-100A
E-NA12-P-04-R0
25X18X12
27.6X16.2X14.2
0.5 -0.1 Class
100A
E-NA15-P-06-R0
28X18X15
30.2X16.0X17.6
0.5 -0.1 Class
100A
E-NA8-P-21-R0 A
27X19X8
29.3X16.6X9.8
0.5 -0.1 Class
60-100A
E-NA12-P-05-R0
27X19X12
28.9X17.1X13.9
0.5 -0.1 Class
100-20A
E-NA12-P-06-R0
28X19X12
30.2X17.1X13.9
0.5 -0.1 Class
120A
E-NA8-P-22-R0 A
30X20X8A
32.7X18.0X9.8
0.5 -0.1 Class
100-120A
E-NA10-P-16-R0
29X21X10
32.1X18.8X13.8
0.5 -0.1 Class
60-80A
E-NA10-P-16-R0 A
29X21X10A
32.1X18.8X13.8
0.5 -0.1 Class
100A
Advantages of nano crystalline alloy core
High permeability: smaller error in the measurement of current
High saturation Induction: smaller size and lighter weight
Excellent thermal stability: Can work at -55~130oC for a long time
Low cost: Ideal for replacing commercial perm alloy cores
Core Ordering Guide:
Cores ordered with strip widths of 5, 8, 10, 15, 20, 25mm & 30mm, eliminate the need for slitting, as the material is supplied in these standard sizes from our supplier.
Bare Core Dimensions: Outside Diameter Of cores x Inside Diameter of Cores x Height of core.Final core Dimensions after plastic case or epoxy coating: Outside Diameter Of cores x Inside Diameter of Cores x Height of core(Note: Inner Dia. Of the core is critical, since a special mandrel is required to be made to match the I.D with floating O.D. Hence check for the standard available I.D range)
Core Material Specifications (Only Nano or Only Amorphous or Nano crystalline + Amorphous Hybrid.
Material initial Permeability >80,000 or <=30,000
Performance parameters Minimum AL value required at freq XX? and voltage XX?Or Output XX? mV at XX?mA current, please also mention no of turns, frequency and load in Ohms.
Core casing : Plastic case encapsulation details or Epoxy coating details.
Material Properties
Magnetic Properties
Properties
Nano Crystalline
Amorphous
Bs (Tesla)
1.25
1.56
Br (Tesla)
0.6 ~ 0.7
0.8
μ i(min) at 50Hz and Hmax = 0.8mA/cm
>80,000
>1100(at 1000Hz)
μ max(min) at 50 Hz
>2,00,000
-
Hc(max) (A/m)
0.8
4
Core loss(max)(W/kg) at 50Hz
0.5
0.5
Chemical Composition (Atomic %)
%Fe
Balance %
Balance %
%Cu
1%
0%
%Nb
3%
0%
%Si
13.5% to 15.5%
13.5% to 15.5%
%B
6% to 8%
6% to 8%
Physical Properties
Curie Temp (oC)
560
410
Density (gmslcc)
7.2
7.2
Resistivity (μ.Ω.cm)
130
130
Working (max allowed temperature in degree C)
130
130
Applications:
For CTS used in 0.5, 0.2, 0.2S class energy meters
