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| Transformers |
TA1626 Series
Minitype Precision 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.Conditions of usage:
- Circumstance temperature: -55...+85°C;
- Relative humid <90% при 40°C;
- Atmospheric pressure: 860~1060mbar (650~800mmHg approximately);
3.Range of working Frequency: 20Hz~1kHz
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:
The parameters in this application as shown in the right figure are listed
in Table 1:
Table 1
| Model |
Rated
Input
current |
Rated
Output
current |
Rated
sampling
resistance |
Rated
sampling
voltage |
Phase
Shift |
Non
Linearity |
Linear
Range |
Withstand
Voltage |
| TA1626-1 |
50A |
25mA |
200 Om |
5.0V |
<50` |
<0.5% |
>3 times
of rated value |
>6kV |
| TA1626-1M |
50A |
25mA |
140 Om |
3.5V |
<19` |
<0.25% |
>2 times
of rated value |
| TA1626-2 |
50A |
50mA |
50 Om |
2.5V |
<50` |
<0.5% |
>3 times
of rated value |
| TA1626-2M |
50A |
50mA |
35 Om |
1.75V |
<25` |
<0.25% |
>2 times
of rated value |
| TA1626-3 |
75A |
50mA |
100 Om |
5.0V |
<60` |
<0.5% |
| TA1626-3M |
75A |
50mA |
50 Om |
2.5V |
<20` |
<0.25% |
| TA1626-4 |
75A |
100mA |
25 Om |
2.5V |
<60` |
<0.5% |
| TA1626-4M |
75A |
100mA |
12.5 Om |
1.25V |
<25` |
<0.25% |
Remarks:
a.In practical applications, the sampling resistor should be smaller than or equal
to the rated value given in table above in order to improve the non-linearity
and phase shift.
b.We can have it customer-made if required current ratio is not listed in the
table above.
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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