Author(s)

Bo Zhang, Qicheng Zhao, Jie Dong

Corresponding Author

Jie Dong

ABSTRACT

In order to effectively simulate the arc-type turn-to-turn short-circuit fault that may occur in dry-type reactors during actual operation, and to study its impact on the performance of the reactor and the stability of the power system, this paper designs a simulation device that can accurately reproduce this type of fault. Through in-depth analysis of the formation mechanism and characteristics of the arc-type turn-to-turn short-circuit fault, the key influencing factors are clarified, and on this basis, the overall design scheme of the device and the optimization strategy of the key modules are proposed. The device integrates an arc generator, a reactor model and an intelligent control unit, and has high precision, high controllability and good experimental adaptability. In the experimental verification, the device successfully reproduced the turn-to-turn short-circuit fault under various working conditions, and the obtained data was highly consistent with the theoretical analysis, further revealing the fault evolution process and its characteristics. The research results show that the simulation device has important application value in the research of power equipment maintenance and fault diagnosis, and provides a scientific basis for the reliability design and fault prevention and control of dry-type reactors.

KEYWORDS

dry-type reactor, arc-type turn-to-turn short-circuit, fault simulation, device design, application research