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Transformers |
TA1623 Series
Minitype Precision AC Current Transformers
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1.Features:
- Being able to be directly welded on PCB;
- Pin-grid of 2.54mm, meeting requirement of computerized board arrangement;
- Fully encapsulated, strong mechanical and environmental endurance, strong
dielectric strength and beautiful appearance.
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~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 Technical 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 |
TA1623-1 |
5A |
5mA |
150 Om |
0.75V |
<20` |
<0.2% |
>2 times
of rated
value |
>6kV |
TA1623-1M |
5A |
5mA |
190 Om |
0.95V |
<25` |
<0.25% |
TA1623-2 |
10A |
5mA |
300 Om |
1.5V |
<20` |
<0.2% |
TA1623-2M |
10A |
5mA |
380 Om |
1.9V |
<25` |
<0.25% |
Table 2
Model |
Rated
Input
current |
Rated
Output
current |
Rated
sampling
voltage |
Phase
Shift |
Non
Linearity |
Linear
Range |
Withstand
Voltage |
TA1623-1 |
5A |
5mA |
<1/2 IC`s
power
supply |
<5` |
<0.1% |
>2 times
of rated
value |
>6kV |
TA1623-1M |
5A |
5mA |
TA1623-2 |
10A |
5mA |
TA1623-2M |
10A |
5mA |
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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