Research on temperature rise characteristics of interturn short circuit in transformer based on multi-physics coupling

Yukun Chen; Xiangjun Zeng; Ke Zhou; Wei Zhang

doi:10.1117/12.3032325

19 June 2024 Research on temperature rise characteristics of interturn short circuit in transformer based on multi-physics coupling

Yukun Chen, Xiangjun Zeng, Ke Zhou, Wei Zhang

Author Affiliations +

Proceedings Volume 13172, Ninth International Symposium on Energy Science and Chemical Engineering (ISESCE 2024) ; 1317207 (2024) https://doi.org/10.1117/12.3032325
Event: 9th International Symposium on Energy Science and Chemical Engineering, 2024, Nanjing, China

Abstract

In the operation of the power system, the reliable work of the power transformer is the basis of the safe and economic operation of the power system, the failure of the transformer will not only cause the transformer to stop operation, but even damage, thus affecting the normal operation of the power system. In this paper, based on multi-physics coupling, interturn short-circuit fault is set in COMSOL software to simulate the interturn short-circuit operation of transformer and its temperature distribution is obtained. It is determined that the change of normal winding current is not obvious when the early turn to turn fault occurs in the high voltage winding. However, the current and heat production of the faulty coil increased significantly, resulting in an increase in the temperature of the top oil and tank casing. Therefore, thermal characteristics such as the top oil temperature winding current can be used to detect inter-turn faults in the early stage.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yukun Chen, Xiangjun Zeng, Ke Zhou, and Wei Zhang "Research on temperature rise characteristics of interturn short circuit in transformer based on multi-physics coupling", Proc. SPIE 13172, Ninth International Symposium on Energy Science and Chemical Engineering (ISESCE 2024) , 1317207 (19 June 2024); https://doi.org/10.1117/12.3032325

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