Author(s)

Yincheng Li ¹

Affiliation(s)

¹ Noncommissioned Officer Academy of PAP, Hangzhou, Zhejiang, 310000, China

Corresponding Author

Yincheng Li

ABSTRACT

As the most important equipment in the power grid, the safe and reliable operation of the power transformer is of great significance to ensure the stability of the power system. On-line monitoring of power transformers can ensure the safe and stable operation of transformers. This paper introduces an on-line monitoring system for temperature, vibration and internal video information of power transformer. The system is allowed to be applied under harsh industrial conditions. This paper describes the design of the system in detail, including the realization of hardware and software. Finally, an example of field test and simple reliability analysis are given to confirm its reliability and function in transformer on-line monitoring. The system can monitor the running state of the transformer, so that the monitoring personnel can find the abnormal and hidden faults of the transformer in time. This can not only prevent the occurrence of sudden accidents of the transformer, but also carry out the maintenance of the transformer without power outage, prolong its operating life, and improve the reliability, safety and economy of the power grid operation.

KEYWORDS

Transformer, Online monitoring, Temperature, Vibration, Video Signal

CITE THIS PAPER

Yincheng Li, Research and Design of Power Transformer Online Monitoring System. Journal of Electrotechnology, Electrical Engineering and Management (2024) Vol. 7: 149-155. DOI: http://dx.doi.org/10.23977/jeeem.2024.070219.

REFERENCES

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[3] Zhao Feilong, Xian Tiantian, Rong Qingyu, et al. Analysis of temperature rise characteristics and insulation loss of distribution transformers under three-phase unbalanced conditions [J]. High voltage technology, 2023, 49 ( 10 ) : 4364-4372.
[4] Cao Chen, Lu Dunlin, Xu Bowen, et al. Magnetostrictive vibration model and looseness fault diagnosis method of transformer core based on elastic mechanics-thermodynamics [J]. High voltage technology, 2024, 50 (05): 2146-2157.
[5] Cao Chen, Lu Dunlin, Wang Xue et al., Simulation and analysis of temperature and mechanical vibration characteristics of transformers [J]. Transformers, 2024,61 (01): 17-23.
[6] Simplice A ,Issouf F ,Zié Y , et al. On the Feasibility of Monitoring Power Transformer's Winding Vibration and Temperature along with Moisture in Oil Using Optical Sensors [J]. Sensors, 2023, 23 (4): 2310-2325.
[7] Ye Yang. Experimental study of fiber grating sensor in transformer temperature and vibration monitoring [D]. Huazhong University of Science and Technology, 2017.
[8] LI Yincheng. Research on performance evaluation method of distribution transformer winding based on short-circuit test [D]. Kunming University of Science and Technology, 2021.
[9] Yu Haiqiang. Research on transformer state detection based on vibration analysis [D]. Xihua University, 2012.
[10] Qi Shiwei. Research and development of on-line monitoring and diagnosis system for power transformer faults [D].North China Electric Power University, 2014.

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