1.Features:
①Flexible in installation modes: fixable on primary wire or bottom board;
②Completely sealed, strong mechanical and environmental endurance, strong dielectric strength, elegant outline;
③Suitable for various primary wires, such as flat-type wires, round wires or cables;
④Provided with four output terminals to realize variable ratios output;
⑤Output terminals are standard plug pins, easy and solid to make connection.
2.Ambient Conditions:
① Ambient temperature: -55℃~+85℃;
② Relative humidity: ≤90% at 40℃;
③ Atmospheric pressure: 860~1060mbar(about 650~800mmHg).
3.Operating Frequency Range: 20Hz~1kHz
4.Insulation Thermal Class:Class F(155℃).
5.Safety Features:
① Insulation resistance: >1000MΩ in normal condition;
② Insulation withstand voltages: 6000V 50Hz/1min;
③ Fire retardancy: In conformity with UL94-V0.
6. Outline Drawing, Installation Dimension and Coil Drawing :( tolerance ± 0.5mm )
● Note:
Terminals 1, 4 are reserved for other variable ratios. Don’t lead out unless needed.
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Installation instruction:
● Mounted on bottom board:
Take four support legs without riveted nut (included in package along with the product), insert them into the sockets as shown in the right figure. When the legs are inserted to the end, the center distance between the mounting holes is 42.5×40; The diameter of the mounting hole for the support leg is Φ 5.0, and then use M4 screw to fix the current transformer on the bottom board.
● Mounted on primary wire:
Take two support legs with M4 riveted nut (included in package along with the product) and insert them into the sockets as shown in the right figure. When the legs are inserted to the end, the center distance between the riveted nuts is 42.5; drill a blind hole at proper position on the wire, and then fix the current transformer on the primary wire with M4 screw.
7.Typical Application and Parameters:
The parameters in this application as shown in the figure are listed in table below.
Model | Rated Input Current | Rated Output Current | Rated Sample Resistance RL | Rated Sample Voltage | Phase Shift | Non Linearity | Linear Range | Withstand Voltage |
TA4052-1 | 400A | 0.1A | 75Ω | 7.5V | ≤30’ | ≤0.5% | 4 times of rated value | ≥6KV |
TA4052-2 | 400A | 0.2A | 25Ω | 5V | ≤30’ |
● Notes:
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:
① Connect the primary winding of the current transformer in series with the measured current loop, and operate the secondary winding in near short-circuit mode.
② Do not allow the secondary winding of the current transformer to be open-circuited and do not install any fuse in the secondary circuit.