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Volume 16
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10.3390/en16124702
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Article

Research on the Characteristic of the Electrical Contact Resistance of Strap Contacts Used in High Voltage Bushings

by
Jianwei Cheng
1,
Linjie Zhao
1,
Xiaoyu Zhou
2,
Ting Ren
2,
Shoufeng Jin
2,
Tao Xie
2,
Peng Liu
2,
Zongren Peng
2 and
Qingyu Wang
2,*
1
CSG Electric Power Research Institute, Guangzhou 510000, China
2
State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China
*
Author to whom correspondence should be addressed.
Energies 2023, 16(12), 4702; https://doi.org/10.3390/en16124702
Submission received: 4 May 2023 / Revised: 29 May 2023 / Accepted: 8 June 2023 / Published: 14 June 2023
(This article belongs to the Section F: Electrical Engineering)
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Abstract

As an important electrical connection component in electrical equipment, the strap contact is directly related to the long-term operation stability of equipment. The electrical contact resistance (ECR) of the electrical connection structure is an important indicator for evaluating the reliability of the electrical contact system. In this research, the theoretical calculation of ECR of the strap contacts used by the G-W theoretical model and the fractal theoretical model is improved and compared. After comparison with the experimental measurement values, the rationality and accuracy of the two theoretical models are discussed. The results show that when the load is small (1–3 N), the maximum error of G-W model is 41%, while the fractal model method has a maximum error of 9%. When the load is large (4–10 N), the results of the two are almost the same, and the errors are both within 14%. In summary, the error range of the fractal model is smaller and the change trend is closer to the experimental value, which is suitable for a relatively better ECR analytical calculation theory. The research results can provide a theoretical basis for research on the electrical contact performance of the electrical contact structure of electrical equipment.
Keywords: electrical contact resistance; G-W model; fractal theoretical model; strap contact; electrical equipment electrical contact resistance; G-W model; fractal theoretical model; strap contact; electrical equipment

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MDPI and ACS Style

Cheng, J.; Zhao, L.; Zhou, X.; Ren, T.; Jin, S.; Xie, T.; Liu, P.; Peng, Z.; Wang, Q. Research on the Characteristic of the Electrical Contact Resistance of Strap Contacts Used in High Voltage Bushings. Energies 2023, 16, 4702. https://doi.org/10.3390/en16124702

AMA Style

Cheng J, Zhao L, Zhou X, Ren T, Jin S, Xie T, Liu P, Peng Z, Wang Q. Research on the Characteristic of the Electrical Contact Resistance of Strap Contacts Used in High Voltage Bushings. Energies. 2023; 16(12):4702. https://doi.org/10.3390/en16124702

Chicago/Turabian Style

Cheng, Jianwei, Linjie Zhao, Xiaoyu Zhou, Ting Ren, Shoufeng Jin, Tao Xie, Peng Liu, Zongren Peng, and Qingyu Wang. 2023. "Research on the Characteristic of the Electrical Contact Resistance of Strap Contacts Used in High Voltage Bushings" Energies 16, no. 12: 4702. https://doi.org/10.3390/en16124702

APA Style

Cheng, J., Zhao, L., Zhou, X., Ren, T., Jin, S., Xie, T., Liu, P., Peng, Z., & Wang, Q. (2023). Research on the Characteristic of the Electrical Contact Resistance of Strap Contacts Used in High Voltage Bushings. Energies, 16(12), 4702. https://doi.org/10.3390/en16124702

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