Current Transformer for Low Voltage Protection
Current Transformer for Low Voltage Protection Current Transformer for Low Voltage Protection Current Transformer for Low Voltage Protection Current Transformer for Low Voltage Protection Current Transformer for Low Voltage Protection

Current Transformer for Low Voltage Protection

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Product description

This product is used for signal isolation and acquisition of low-voltage relay protection ; The current signal during short-circuit fault of the system is converted into a signal suitable for weak current circuit through the transformer, and the accurately transmitted to the electronic circuit based on microprocessor ;

The product uses a special composite magnetic core with high permeability and small residual magnetism ,which can effectively prevent the first wave distortion caused by the “excitation inrush current” generated during the opening and closing test .

Product characteristics

PCB mounting method ,directly soldered on the circuit board;

High permeability ,small magnetic leakage and excellent consistency ;

Strong overload capacity ,can withstand 20-40 times the rated current instantaneous impact without saturation ;

30% DC component waveform can be superimposed without distortion;

Various shape structures are available .

Application
Apply to replay protection of medium and low voltage power systems and system protection of automation devices.
Product parameters
Electrical
performance
parameters
Operation temperature -25℃~+55℃/-40℃~~+85℃可选 Relative humidity ≤90%hPa
Internal insulation Epoxy resin Insulation resistance >500 M Ohms/500Vdc
Medium strength 3000Vac/min Withstand impulse voltage 5000V(1.2/50μsStandard Lightning Wave)
Rated load >50K Ohms Operation frequency 50~400Hz
Accuracy class According to(IEC 61869-2)or
(GB 20840.2-2014) Definition of the error limit of the current transformer for medium protection;
Environmental friendly According to the requirement of RoHS;
Model interpretation
Typical value of products
Physical Pic Type Rated input current
(AC)
Rated accuracy limits
nput current /output voltage
(AC)
Error limit Power consumption(VA) Power frequency withstand voltage(V) Dimensions(mm)
TR0102-2BA   1A,5A 20A/3.53V,7.07V
50A/3.53V,7.07V
100A/3.53V,7.07V
5%~200%Within the rated current input range:0.2,0.5 class;
2~20/40imes the rated current input range ,1.0 class;
Compound error at primary current at rated accuracy limits ≤5%
≤0.5 ≥3000 查看外形结构图
OD-H
32-27
TR0176-4BA 1A,5A 20A/3.53V,7.07V
50A/3.53V,7.07V
100A/3.53V,7.07V
≤0.5 ≥3000 查看外形结构图
L-W-H
30-23-33
TR0175-4BA 1A,5A 20A/3.53V
50A/3.53V
100A/3.53V
≤0.5 ≥3000 查看外形结构图
L-W-H
31-24-31.5
TR01116-2BA 1A,5A 20A/3.53V,7.07V
100A/3.53V,7.07V
200A/3.53V,7.07V
≤0.5 ≥3000 查看外形结构图
OD-H
34-30
TR0134-6BZ 1A,5A 30A/3.53V,7.07V
150A/3.53V,7.07V
200A/3.53V,7.07V
≤0.5 ≥3000 查看外形结构图
L-W-H
35-32-28.5

Remarks:Customization available according to system requirements .

We are a manufacturer has export qualification and experience.

instrument type at least 100pcs ;others by 1 -5 pcs;

T/T;L/C;

Instrument transformer 20 thousand pcs ;current transformer 12 thousand pcs ;voltage transformer 11 thousand pcs.

We have a R&D team for new product design. Successful cases and in continued cooperation. Discussion among both sides ➡general specification ensure➡structure drawing ➡original sample ➡electrical

Standard Carton Export fumigatin-free tray Tray Film Edge fixing strip Vacuum packaging acceptable Customize size acceptable
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Contact Us

Tel:+86-25-84152563

Fax:+86-25-52146294

Email:export@hbtianrui.com

Address:Head Office: No.8 Chuangye Avenue, Economic Development Zone, Tianmen City, Hubei Province, China (Zip Code: 431700) Nanjing Office: Building 23, Baijiahu Science and Technology Industrial Park, No.2 Qingshuiting West Road, Jiangning Economic Development Zone, Nanjing City, Jiangsu Province,China (Zip Code:211106)

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