Secondary Terminals
In order to ensure good anti-interference ability, ECT-LPS1 current sensor secondary signal terminals and signal line have been specially shielded, and customized interface schemes can be provided according to customers' specific requirements.
Principle and Characteristics
The ECT-LPS1 current sensor is based on the low-power coil principle and has the following advantages:
● The integrated design can realize the measurement of phase current and zero sequence current at the same time and the protection signal sampling.
● The secondary outputis a safe low voltage signal, the power consumption is greatly reduced, and the heat output is small.
● No secondary open circuit high voltage risk, increased safety.
● Product standardization, selection and ordering process simplification, fast delivery.
● Small size, light weight, easy to install.
Combined with the versatile intelligent feeder terminal (FTU), these excellent features will greatly improve power protection and
monitoring. .
Technical Specification
| Parameter | Specification |
| System voltage | ≤12kV |
| Insulation level | 0.72/3kV |
| Rated transformation ratio | Phase sequence: 600A/1V Zero sequence: 20A/0.2V |
| Accuracy class | Phase sequence: 5P10 (0.5S) Zero sequence: 10P10 (Class 1) |
| Load impedance | ≥20kΩ |
| Short-time thermal current | 20×In |
| Rated frequency | 50/60Hz |
| Operating temperature | -40℃—+70℃ |
| Standards | GB/T 20840.8 (GB/T 20840.6) IEC 60044-8 (IEC 61869-6) |
Dimensional Drawing
