CT cores for Power system

CT cores for Power system
Reliable quality,bright surface,accurate size,uniform coating thickness,good solderability.
CT cores for Power system
Characteristics:
It is made of the iron-based nano-crystalline strips with a moderate saturation magnetic induction, high permeability and low loss, which can effectively reduce ratio difference angle difference of the transformer. The saturation magnetic induction Bs of nano-crystalline alloy is between the silicon steel and Permalloy. Â
The lower the Bs value is, the lower the security coefficient of the instrument is. When the system failure occurs and large current through the current transformer results therefore, the iron core is more easily filled, and the secondary current no longer increases in proportion, as can assure that the secondary instruments are well protected and not to be damaged. Permeability of nano-crystalline alloy is close to Permalloy and a magnitude higher than silicon steel, so it is suitable to be made as high-precision transformer iron core. Â Â
The density and lamination coefficient of nano-crystalline is lower than that of Permalloy, under the condition of the same size and similar performance of the two. In this case the nano-crystalline iron core is 1/4 lighter in weight, and 1/3 lower in the manufacturing cost. In addition, the linear range of nano-crystalline alloy is wider than that of Permalloy .It can work for a long time at temperature of -55 ~ 130 ℃ ,with a good temperature stability.
Rectangular core
specification
Core
dimensions

Finished
dimensions(mm)

Weight

Turns
Ratio

Excitation
current
Excitation
voltage

1
55*97
77*119*25
50*92
82*114*30
0.53
1:1
25 95 1500
0.45 2.2 53
2
70*90
100*120*30
65*85
105*125*36
0.81
1:1
200 500
15 50
3
75*95
105*125*25
70*90
110*130*30
0.7
1:1
70 175
2 8
4
80*95
120*135*25
75*90
125*140*30
1.09
1:1
80 600
1.7 41
5
90*90
160*160*30
85*85
165*165*36
2.4
1:1
100 500 1000
6 100 140
6
135*135
260*260*10
130*130
265*265*16
2.3
1:1
100 500
1.5 32 1.2
7
82*602
138*658*45
75*595
145*665*55
8.8
1:1
100 1000 2000
45 120