The electronic current transformer for measurement is used to convert the current of the corresponding circuit to the electronic current transformer of the measuring instrument, the integral meter and the like when the power system is in normal operation.
Good insulation performance and beautiful appearance. It has the characteristics of high sensitivity, good linearity, reliable operation and convenient installation. Its performance is better than the general zero-sequence current transformer, which is more widely used. It not only adapts to electromagnetic relay protection, but also adapts to electronic and microcomputer protection devices. Users can effectively ground or neutral according to the operation mode of the system. For the difference of non-effective grounding, select the appropriate zero-sequence current transformer.
Alternative energy monitoring
Digital electricity meter
1. The output voltage is proportional to the derivative of the input current based on the Rogowski coil principle (di / dt).
2. Assume that all currents and voltages are sinusoidal waveforms of Fr, constant nominal frequency (Hz), measured in RMS.
4.Ipri = rated primary current.
5.Iout = rated secondary current.
6.Iprimax = the maximum primary current sensed.
7. Loutmax = the maximum secondary current sensed.
8. RL = termination resistance. Changing the termination resistance increases or decreases the output voltage/current according to the following
Liou has a strict quality control system. From materials to finished products. We conducted an inductive test on each core. Then choose the right core to make the transformer. Then we conducted DC, current, and high voltage tests. After approval, we check the appearance and parameters of the inspection and package the goods.