Current Transformer Core
Description
| Product Name | Current Transformer Core |
| P/N | MLHC-2136 |
| Saturation magnetic induction Bs（T） | 1.25 |
| Saturation magnetostriction (λs) | 2.0X10-6 |
| Initial permeability μi | 70,000~100,000 |
| Coercivity Hc（A/m） | < 0.8 |
| Curie temperature Tc（℃） | 560 |
| Crystalline temperature Tx（℃） | 500 |
| Density ρ ( g/cm³) | 7.2 |
| Hardness Hv | 880 |
| Thickness(μm) | 28~35 |
| Stacking factor | ≥0.75 |
Application
● High-voltage current transformer cores (our MLGH series) is mainly used in high-voltage transformers and high-voltage, high-current power plants and substations.
● Precision current transformer core (our MLJH series) is mainly used in electronic watt-hour meters, precision power meters, current overload protection in mechanical control, current control in industrial automation, and smart meters.
● Zero-sequence current transformer core (our MLLH series) is mainly used in the leakage protection switch
Features
Compared to conventional soft magnetic alloys (e.g. silicon steel and Permalloy), our cores have 4 features.
● High magnetic permeability - reduces measurement errors in current transformers.
● High saturation magnetic induction - smaller size and lighter weight than permalloy current transformers.
● Low loss - the ideal material to replace Permalloy.
● Excellent temperature stability - long operating time from -55 to 130 °C
MLGH series- High-voltage current transformer cores
|
Product code |
Core parameters |
|||||||
|
Size of case |
Core size |
Ae |
Lm |
|||||
|
A (mm) |
B （mm） |
C （mm） |
A (mm) |
B （mm） |
C （mm） |
(mm²) |
（mm） |
|
|
TYP. |
TYP. |
|||||||
| MLGH-055037020 |
60 |
32 |
25 |
55 |
37 |
20 |
144 |
201.06 |
| MLGH -115090010 |
120 |
85 |
15 |
115 |
90 |
10 |
100 |
400.55 |
| MLGH -260200035 |
265 |
195 |
41 |
260 |
200 |
35 |
840 |
911.06 |
| MLGH -280205090 |
285 |
200 |
97 |
280 |
205 |
90 |
2700 |
997.46 |
| MLGH -350250030 |
355 |
245 |
35 |
350 |
250 |
30 |
1200 |
1256.64 |
| MLGH -390260025 |
395 |
255 |
30 |
390 |
260 |
25 |
1300 |
1429.42 |
| MLGH -450360020 |
455 |
355 |
25 |
450 |
360 |
20 |
720 |
1555.09 |
| MLGH -485445015 |
490 |
440 |
20 |
485 |
445 |
15 |
240 |
1586.50 |
| MLGH -540435040 |
546 |
429 |
46 |
540 |
435 |
40 |
1680 |
1861.39 |
| MLGH -600460065 |
606 |
454 |
71 |
600 |
460 |
65 |
3640 |
2104.87 |
MLJH series- Precision current transformer core
|
Product code |
Core parameters |
|||||||
|
Size of case |
Core size |
Ae |
Lm |
|||||
| A
(mm) |
B （mm） |
C （mm） |
A (mm) |
B （mm） |
C （mm） |
(mm²) |
（mm） |
|
|
TYP. |
TYP. |
|||||||
| MLJH-018013005 |
20 |
10 |
7.5 |
18 |
13 |
5 |
10 |
64.40 |
| MLJH -019015006.5 |
22.5 |
12 |
9 |
19 |
15 |
6.5 |
10.4 |
65.97 |
| MLJH -021016010 |
23.8 |
14.5 |
12.5 |
21 |
16 |
10 |
20 |
73.83 |
| MLJH -029021006.5 |
31 |
19 |
8.4 |
29 |
21 |
6.5 |
20.8 |
103.67 |
| MLJH -025017008 |
27 |
15 |
10 |
25 |
17 |
8 |
25.6 |
91.11 |
| MLJH -030020008 |
33 |
17.5 |
10.5 |
30 |
20 |
8 |
32 |
109.96 |
| MLJH -060048015 |
63 |
45 |
18 |
60 |
48 |
15 |
72 |
207.35 |
| MLJH -039.1030.806.5 |
41 |
29.5 |
8.4 |
39.1 |
30.8 |
6.5 |
21.58 |
135.87 |
MLLH series- Zero-sequence current transformer core
|
Product code |
Core parameters |
|||||||
|
Size of case |
Core size |
Ae |
Lm |
|||||
|
A (mm) |
B （mm） |
C （mm） |
A (mm) |
B （mm） |
C （mm） |
(mm²) |
（mm） |
|
|
TYP. |
TYP. |
|||||||
| MLLH-014010010 |
17.3 |
8 |
13 |
14.3 |
9.9 |
10 |
17.6 |
51.84 |
| MLLH -015010020 |
17.3 |
8.3 |
23 |
15 |
10 |
20 |
40 |
54.98 |
| MLLH -020013018 |
24 |
11.5 |
21 |
20 |
13 |
18 |
50.4 |
73.83 |
| MLLH -023012030 |
27.2 |
11.4 |
32.6 |
23 |
12.2 |
30 |
129.6 |
89.22 |
| MLLH -023016.5020 |
27 |
15.2 |
23 |
23 |
16.5 |
20 |
52 |
82.47 |
| MLLH -023014.8018 |
26.4 |
12.6 |
21.4 |
23 |
14.8 |
18 |
59.04 |
85.14 |
| MLLH -023013.5015 |
26 |
11.5 |
18 |
23 |
13.5 |
15 |
57 |
87．18 |
| MLLH -032017012 |
35 |
15 |
15 |
32 |
17 |
12 |
72 |
124.09 |
