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Input current: 2mA; Output current: 2mA; Current ratio: 1000:1000
Applicable to convert high voltage signals into proportional low current signals, facilitating the use of measurement and protection equipment.
ISO 9001:2015 certified; fully compliant with RoHS and REACH requirements
Adopt nanocrystalline magnetic core (high precision, good linearity)
Epoxy potting, safe and reliable;
Flame retardant (compliant with UL94-V0);
Environmental protection (compliant with EU RoHS and REACH standards)
Small size, light weight, easy to assemble and weld.
Detecting overload current
Ground fault detection
Metering
Analog to digital circuits
Operating environment: temperature -40℃~ +85℃,
Storage environment: temperature -40℃~ +85℃,
Relative humidity: no more than 95% (25℃)
Reference standard: IEC 60044-1&GB&T 20840.1-2017&ANSI C57.13
ELECTRICAL PROPERTIES(at 25°C) | |||||||||
Model | Input Current | Output Current | Turns Ratio | Linear range | Phase Difference | Accuracy | Load resistance | Pressure resistance | Operating frequency |
SPT107 | 2mA | 2mA | 1000:1000 | 5~120% | ≤30’ | 0.2 | ≤20Ω | 3000V | 50Hz~60Hz |
Precautions∶1、Pay attention to the load connected to the secondary of the transformer.，Exceeding the rated load capacity may result in reduced accuracy or saturation.。
2. If there is no suitable product for your use in the above table, our company can tailor-make products for you according to your technical and structural requirements.
Dimension units： (mm）
Dimensional tolerance： ±0.5mm(unless otherwise specified), pitch tolerance:±0.3mm
Note:Unless required, terminal resistors and one turn primary are not provided
Note: This schematic diagram is the basic working principle of the transformer. The transformer sampling circuit can be customized.
As shown in the figure above: parallel resistor R direct output circuit, when the voltage transformer works at the rated current of 2mA, the resistor R is not greater than 300Ω (output maximum saturation voltage 1V), and the secondary load is R. The direct output circuit has a larger load phase difference, but the linearity is basically unchanged, still better than 0.1%. It is suitable for use in occasions with low requirements. C in Figure 1 can play a certain phase compensation role, and it can be omitted if there is no phase requirement. Compensation amount: △δ=-100πCR*3438′, this circuit should be selected as a precision transformer with a load of R. If the actual error of the 0-load precision transformer is still used, it will shift to the negative direction, but the linearity will remain basically unchanged.
We are a service provider that can provide a complete set of electronic component technology. Specializing in the production, research and development, and sales services of amorphous nanocrystalline iron cores, transformers, and sensors.
If you have any questions or need assistance, please feel free to contact our team at any time.
info@sencorui.com3rd Floor, Building 4A, Huiye Technology Park, Fenghuang Street, Guangming District, Shenzhen
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