The digitized output and adapt to network wiring and other obvious advantages to meet the miniaturization of power system equipment

With modern power systems to high pressure, long-distance, large-capacity in the direction of, the traditional electromagnetic transformer insulation because of its complex structure, magnetic saturation, bulky, difficult to meet the cost of the disadvantages of modern development. In recent years, the emergence of electronic transformer, with its digital output and adapt to network wiring and other obvious  Electric energy meter  the power system equipment miniaturization, intelligence, good safety and the quality of economic operation and high reliability needs of the digital substation play an important role. Therefore, the combination of digital  Voltage stabilizer  equipment detect trends and needs, establish electronic transformer model is an increasing need for electronic transformer Transfer Characteristics and study of the impact on the protection of great  Circuit breaker  significance and practical value. This paper mainly electronic current transformers as the main line, the first in analyzing its structure and measuring principle based on the active-type software completed electronic current transformer sensor head and analog signal processing system modeling work, derive the transfer function model and the simulation parameters into the prototype model of the frequency characteristics and error factors.