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| Transformers |
TA1321 Series
Minitype AC Current Transformers
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1.Features:
- Being able to be directly welded on PCB, beautiful outline;
- Completely encapsulated, strong mechanical and environmental endurance, high
voltage insulating ability, high accuracy, safe and reliable.
2.Ambient of usage:
- Ambient temperature: -55...+85°C;
- Relative humidity <90% при 40°C;
- Atmospheric pressure: 860~1060mbar (about 650~800mmHg);
3.Range of working Frequency: 20Hz~20kHz
4.Insulation Rating: Class F (155°C).
5.Safety features:
- Insulation resistance: >1000MOm in normal condition;
- Insulation withstand voltages: 6000V 50Hz/1min;
- Fire proof: accord with the grade of UL94-Vo
6.Outline Drawing, Installation Dimention and Coil Diagram
7.Typical Usage and Parameters:
1) The parameters are listed in Table 1 while the sampling voltage is obtained
directly by using a resistor (as shown in Fig.1 below).
2) ?The parameters are listed in Table 2 while the sampling voltage is obtained
by using an IC (as shown in Fig.2 below).
Table 1
| Model |
Rated
Input
current |
Rated
Output
current |
Rated
sampling
resistance |
Rated
sampling
voltage |
Phase
Shift |
Non
Linearity |
Linear
Range |
Withstand
Voltage |
| TA1321-1K |
10A |
25mA |
32 Om |
0.8V |
<30` |
<0.2% |
>2 times
of rated
value |
>6kV |
| TA1321-1KM |
10A |
25mA |
40 Om |
1.0V |
<37` |
<0.25% |
| TA1321-2K |
10A |
10mA |
200 Om |
2.0V |
<20` |
<0.2% |
| TA1321-2KM |
10A |
10mA |
250 Om |
2.5V |
<25` |
<0.25% |
| TA1321-3K |
20A |
10mA |
300 Om |
3.0V |
<15` |
<0.2% |
| TA1321-3KM |
20A |
10mA |
375 Om |
3.75V |
<19` |
<0.25% |
| TA1321-4K |
30A |
6mA |
500 Om |
3.0V |
<12` |
<0.2% |
>1.5 times
of rated
value |
| TA1321-4KM |
30A |
6mA |
625 Om |
3.75V |
<15` |
<0.25% |
| TA1321-5K |
40A |
50mA |
20 Om |
1.0V |
<15` |
<0.2% |
| TA1321-5KM |
40A |
50mA |
25 Om |
1.0V |
<19` |
<0.25% |
| TA1321-6K |
20A |
25mA |
20 Om |
0.5V |
<20` |
<0.2% |
| TA1321-6KM |
20A |
25mA |
25 Om |
0.625V |
<25` |
<0.25% |
Table 2
| Model |
Rated
Input
current |
Rated
Output
current |
Rated
sampling
voltage |
Phase
Shift |
Non
Linearity |
Linear
Range |
Withstand
Voltage |
| TA1321-1K |
10A |
25mA |
<1/2 of IC`s
power
supply |
<5` |
<0.1% |
>2 times
of rated
value |
>6kV |
| TA1321-1KM |
10A |
25mA |
| TA1321-2K |
10A |
10mA |
| TA1321-2KM |
10A |
10mA |
| TA1321-3K |
20A |
10mA |
| TA1321-3KM |
20A |
10mA |
| TA1321-4K |
30A |
6mA |
| TA1321-4KM |
30A |
6mA |
| TA1321-5K |
40A |
50mA |
| TA1321-5KM |
40A |
50mA |
| TA1321-6K |
20A |
25mA |
| TA1321-6KM |
20A |
25mA |
8.Attention:
- The primary of the current transformer must be connected in series with the
loop of the measured current. The secondary should operate in a mode of near short
circuit.
- The secondary of the current transformer is not allowed to be open circuit,
Do Not install any fuse.
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