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1.Features:
- Flexible in installation modes: fixable on primary wire or bottom board;
- Suitable for multi-form of primary wires, such as flat-type wires, round
wires or bottom cables;
- Provided with four output terminals to realize variable ratios output;
- Output terminals are standard plug pins, easy and solid to make connection;
- Completely sealed, strong mechanical and environmental endurance, strong
dielectric strength, elegant outline.
2.Ambient conditions:
- Ambient temperature: -55...+85°C;
- Relative humidity <90% при 40°C;
- Atmospheric pressure: 860~1060mbar (about 650~800mmHg);
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 retardancy: In conformity with UL94-Vo
6.Outline Drawing, Installation Dimention and Coil Diagram
Remark: Terminals 1, 4 are reserved for other variable ratios. Don’t lead
out unless needed.
Installation instruction
Mounted on bottom board:
Take two support legs (included in package along with the product) and insert
them into the sockets as shown in Fig. below. The center distance between the
mounting holes is 42.5x40; The diameter of the mounting hole for the support leg
is Ø 5.0, and then use M4 screw to fix the current transformer on the bottom
board.
Mounted on primary wire:
Take one support leg with M5 hole (included in package along with the product)
and insert it into the socket as shown in Fig. below. The center distance between
the M5 hole is 42.5; fix the current transformer on the primary wire with M4 screw.
7.Typical Usage and Parameters:
The parameters in this application as shown in the right figure are listed
in table below.
| Model |
Rated
Input
current |
Rated
Output
current |
Rated
sampling
resistance |
Rated
sampling
voltage |
Phase
Shift |
Non
Linearity |
Linear
Range |
Withstand
Voltage |
| TA4052-1 |
400A |
0.1A |
75 Om |
7.5V |
<30` |
<0.5% |
4 times
of rated
value |
>6kV |
| TA4052-2 |
400A |
0.2A |
25 Om |
5V |
<30` |
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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