TY - GEN
T1 - An improvement of a contact spring pin of a 126 kV vacuum circuit breaker by orthogonal experimental design
AU - Wang, Haoqing
AU - Zhang, Bojian
AU - Li, Xiangyang
AU - Yao, Xiaofei
AU - Zhang, Hao
AU - Liu, Zhiyuan
AU - Geng, Yingsan
AU - Wang, Jianhua
AU - Cheng, Junqi
AU - Yang, Haifang
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/12
Y1 - 2017/12/12
N2 - The objective of this paper is to improve the fatigue life of a contact spring pin in a 126 kV vacuum circuit breaker (VCB). Firstly, the fatigue life of the contact spring pin during the opening or closing operation of the 126kV VCB is analyzed. Secondly, an orthogonal experimental method is used for the improvement of the fatigue life of the contact spring pin, in which three impact factors are considered, including the pin material, the cross section contour of the pin, as well as the location of the limiting apertures of the pin. The improved pin was with a material of Ni-Cr steel, a racetrack cross-section with the straight line length of 12 mm, and a limiting aperture of level 2, respectively. The mechanical endurance test result shows that the original pin is cracked after 178 operations. However, the mechanical endurance of the improved structure shows that the pin keeps normal function after 2000 operations.
AB - The objective of this paper is to improve the fatigue life of a contact spring pin in a 126 kV vacuum circuit breaker (VCB). Firstly, the fatigue life of the contact spring pin during the opening or closing operation of the 126kV VCB is analyzed. Secondly, an orthogonal experimental method is used for the improvement of the fatigue life of the contact spring pin, in which three impact factors are considered, including the pin material, the cross section contour of the pin, as well as the location of the limiting apertures of the pin. The improved pin was with a material of Ni-Cr steel, a racetrack cross-section with the straight line length of 12 mm, and a limiting aperture of level 2, respectively. The mechanical endurance test result shows that the original pin is cracked after 178 operations. However, the mechanical endurance of the improved structure shows that the pin keeps normal function after 2000 operations.
KW - Vacuum circuit breaker
KW - contact spring pin
KW - impact fatigue life
KW - orthogonal design test
UR - https://www.scopus.com/pages/publications/85046895381
U2 - 10.1109/ICEPE-ST.2017.8188983
DO - 10.1109/ICEPE-ST.2017.8188983
M3 - 会议稿件
AN - SCOPUS:85046895381
T3 - ICEPE-ST 2017 - 4th International Conference on Electric Power Equipment- Switching Technology
SP - 947
EP - 950
BT - ICEPE-ST 2017 - 4th International Conference on Electric Power Equipment- Switching Technology
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Conference on Electric Power Equipment- Switching Technology, ICEPE-ST 2017
Y2 - 22 October 2017 through 25 October 2017
ER -