Introduction:
The principle of current transformers is based on the principle of electromagnetic induction. A current transformer consists of a closed core and windings. It has a primary winding with few turns, which is strung on the current line to be measured. Therefore, it usually has all the current flowing through the line. The secondary winding has a relatively large number of turns. It is connected in series with the measuring instrument and the protection circuit, current mutual inductance When the transformer works, its secondary circuit is always in a closed state, so the series coil impedance of the measuring instrument and the protection circuit is very small, and the current transformer's working condition is close to a short circuit.
Feature:
1. High power
2. Strengthen the anti-rust ability
3. light weight
4. Flexible customization
Application:
- Fault indicator
- Traveling Wave Ranging Device
- Branch monitoring unit
Current transformer coils can be customised
| Size (mm) |
Cross-sectional area(mm²)
|
Input current (A) |
Output power (mW) |
No-load voltage (V) |
| 55*65*5 |
25 |
10 |
25.6 |
5.19 |
| 55*75*10 |
100 |
5 |
45 |
8.6 |
| 55*75*12 |
120 |
5 |
54 |
10.3 |
| 55*78*12 |
144 |
5 |
52 |
12.5 |
| 48*68*15 |
150 |
5 |
49 |
9.64 |
| 55*75*20 |
200 |
3 |
40 |
8.1 |
| 86*107*20 |
210 |
5 |
72 |
8.0 |
| 55*78*28 |
336 |
5 |
118 |
14.1 |
| 76*106*27 |
405 |
5 |
88 |
11.7 |
| 64*106*20 |
420 |
5 |
163 |
19.5 |
| 58*89*40 |
620 |
5 |
200 |
18.4 |
Features and uses:
This type of iron core has superior magnetic properties, high permeability in a weak magnetic field, low saturation magnetic induction and high resistivity. It is mainly used for power transmission, energy conversion, energy measurement, and human Electric protection and other aspects. Such as: various types of current, voltage transformers, safety devices used in power systems, and other examples: input transformers, pulse transformers, magnetic amplifiers, magnetic screens, sensor stepping motors and electronics used in automatic control systems Computer memory components, etc., are widely used.
After continuous research and development and practice, the magnetic core current transformer coils of Hemei Electronics has good electrical performance, high protection level and long service life, which is in the leading level of the industry and trusted by domestic and foreign customers, if you need products in this area, welcome to contact us at any time!
