Due to the problems of easy saturation, non-linearity and narrow frequency band of electromagnetic current transformers, electronic current transformers are gradually emerging. Electronic current transformers generally have the advantages of magnetic saturation resistance, low power consumption, and wide frequency band.
The main features of the transformer are as follows:
1. Adopt front-end digital technology, optical fiber transmission and good electromagnetic compatibility.
2. The amplitude frequency characteristic and the phase frequency characteristic are good, and high measurement accuracy can be obtained in the wide amplitude, frequency and phase range.
3, belonging to the digital sensor, the secondary instrument will not introduce error, the sensor error is the system error.