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Categories
Welcome to wziep.com!
category： Transformers
reference price：￥$3.00 - $30.00
This product is suitable for electric energy measuring instruments and meters; electric parameters transducer;Telemetry remote control data acquisition system;Relay protection systems.Normally,the secondary current is s proportional to the first input current, and the phase difference is close to zero when the connection method is correct.
Features & Advantages
1. For three - phase application, three - in - one design, save space, easy construction, greatly enhance the stability.
2. Technical requirements: in accordance with IEC185 and GB1208-1997 current transformer standards.
3. Structure: flame retardant ABS blue plastic shell package, secondary winding UL2468 24AWG 2.5m length terminal, convenient connection with the equipment, line length can be customized.
4. Electrical strength: o breakdown, arc flying and dizziness (leakage current 1mA) between primary winding and secondary winding in 3kV, 50Hz and 60s.
5. Insulation resistance: ≥1000M between primary winding and secondary winding (DC500V)
Parameters
| Parameters | Value | |
| Model | CT19 | |
| Primary current | 400A | |
| Secondary current | 80mA | |
| Accuracy class | 0.5 | |
| Working Temperature: | -40℃~+50℃ | |
| Dimensions (L x W x D) | 88.2mm×68mm×21mm | |
| Bore diameter | φ30±0.5mm | |
| Actual current/Rated current | Ratio error(±%) | Phase displacement(±') |
| 5% | ≤1.5 | ≤90 |
| 20% | ≤0.75 | ≤45 |
| 100% | ≤0.5 | ≤30 |
| 120% | ≤0.5 | ≤30 |
Dimensions
Notes: As shown in the figure on the right, pay attention to the reference direction of the current during installation. Secondary output lines should be twisted and securely connected to avoid open circuit.
Q: What are the main parameters of the CT?
A: These parameters include installation mode, aperture size, current specification, and current convert ratio.
Q: What safety matters should pay attention to when using the CT?
A: Wiring must comply with specifications, especially secondary can not be opened.
Q: Is it important to choose the matching rated current of the transformer for the ac meter?
A: Yes. The CT with appropriate rated current should be selected according to the range of the actual current, otherwise the measurement error will be caused.
Q: Is the connection direction of CT important in the connection operation?
A: The direction of the wiring is important, or it may lead to measurement errors or confusion.
