1k107 China Nanocrystalline Toroidal Transformer Core
Product Description
Features: |
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High permeability - greatly improved transformer accuracy and reduce difference and angular than the difference |
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Light weight, low cost - the price was significantly lower than permalloy, cost-effective |
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Excellent temperature stability - can be -55 - 130 ºC to work long hours |
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Saturation magnetic flux density between silicon steel and Permalloy between - is conducive to reducing the instrument security factor |
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Application areas: |
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Measuring Current Transformer Substation Core (accuracy 0.5-0.01 grade, rated voltage 0.5-500kv) |
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Power transformer is specifically measure current and power transmission lines of special transformers. According to measurement accuracy class requirements, can choose a different soft magnetic materials as core. The higher permeability core, the higher the measurement accuracy. At present the greatest amount of core material is cold-rolled silicon steel, glass and nano-crystalline alloy Mo alloy. In recent years, high-precision level (such as the 0.2, 0.2S class, 0.5S level) of the transformer demand is increasing rapidly. When asked to become more than a small, low-security turns, or the core size due to volume requirements restricted circumstances, the cold-rolled silicon steel sheets often do not meet the required precision. Although the high permeability glassy Mo alloys meet the required precision, but the price higher. The use of nano-crystalline core can not only meet the required accuracy and the price lower than the glassy Mo alloys. |
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Detailed Photos
Core winding:
Cores are annealing in vacuum furnace:
Cores are 100% tested after annealing:
Cores are solidified :
Product Parameters
Electrical property standard: |
The comparetion of Fe-based nanocrystalline core, silicon steel core and permally core |
Bascal parameter |
Nano core |
Permally core |
Silicon steel core |
saturate induction density(T) |
1.25 |
0.76 |
2.03 |
initial permeability ( Gs/Oe ) |
40,000 - 80,000 |
50,000 - 80,000 |
1,000 |
Max permeability ( Gs/Oe ) |
>200,000 |
>200,000 |
40,000 |
density (g/cm3 ) |
7.2 |
8.75 |
7.65 |
curie temperature ( ºC ) |
570 |
400 |
740 |
ribbon thckness (mm) |
0.025 - 0.035 |
0.15 |
0.3 |
occupation stack factor |
>0.70 |
0.9 |
0.95 |
Specification(MM): |
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Bare core size(in plastic case) |
Bare core size(in plastic case) |
Bare core size(in metal case) |
ID |
OD |
HT |
ID |
OD |
HT |
ID |
OD |
HT |
32 |
50 |
20 |
100 |
120 |
25 |
200 |
240 |
20 |
40 |
50 |
20 |
60 |
120 |
30 |
120 |
140 |
25 |
40 |
59 |
20 |
70 |
120 |
30 |
100 |
155 |
60 |
30 |
60 |
20 |
80 |
120 |
30 |
105 |
165 |
70 |
40 |
64 |
20 |
90 |
125 |
25 |
120 |
175 |
15 |
40 |
64 |
25 |
90 |
130 |
30 |
130 |
190 |
60 |
40 |
64 |
30 |
80 |
130 |
50 |
130 |
190 |
40 |
50 |
65 |
25 |
90 |
130 |
50 |
160 |
200 |
20 |
39 |
68 |
25 |
100 |
140 |
20 |
160 |
205 |
30 |
61 |
70 |
20 |
100 |
140 |
25 |
135 |
210 |
30 |
40 |
70 |
25 |
100 |
140 |
40 |
150 |
210 |
10 |
40 |
70 |
25 |
120 |
170 |
25 |
210 |
280 |
25 |
36 |
71 |
30 |
198 |
248 |
20 |
330 |
390 |
15 |
36 |
72 |
30 |
198 |
248 |
30 |
330 |
390 |
25 |
50 |
75 |
25 |
214 |
264 |
30 |
330 |
390 |
25 |
45 |
78 |
30 |
200 |
270 |
30 |
330 |
430 |
15 |
50 |
80 |
25 |
90 |
100 |
30 |
330 |
430 |
20 |
50 |
80 |
25 |
80 |
110 |
25 |
270 |
330 |
20 |
50 |
90 |
30 |
80 |
120 |
20 |
270 |
330 |
25 |
50 |
100 |
25 |
80 |
120 |
25 |
270 |
330 |
15 |
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Rmarks:Other core sizes can be ordered according to customers'requirement |
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Packaging & Shipping
Cores are wrapped by firber glass and insulation film:
All cores are well packed by strong plywood box to avoid any damage during transprotation: