TY - GEN
T1 - Research on the defect development of cable accessories under AC voltage
AU - Zhao, Xuefeng
AU - Pu, Lu
AU - Xu, Long
AU - Zhang, Xing
AU - Guo, Baohong
AU - Zhao, Aixuan
AU - Deng, Junbo
AU - Zhang, Guanjun
AU - Hui, Ni
AU - Fan, Minghao
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/14
Y1 - 2017/7/14
N2 - As cable insulation failure usually started with PD activity, a PD detection system based on pulse current was built to study the PD characteristics of typical defects in XLPE cable. To facilitate the test, the oil cup test terminal was used. Considering the installation procedure, three different kinds of insulation defects in cable accessory samples were made, which were knife incision defect, metal floating potential defect and misplaced stress cone defect. Under long time power frequency voltage of U, 1.7U0, 2.5U0 and 3.5U0 (U0=8.7kV), this paper proposed a variety of methods to characterize partial discharge of these samples by PRPD spectrum, δ t spectrum and PSA spectrum. Results showed the δ t spectrum presented a clear distribution of the peak and the sub-peak. The distribution regularity of partition probability in PSA pattern before the breakdown was found that the probability in the area 1.1 as from 50% to 60%, and the probability in the area 3.1 was from 30% to 40%.
AB - As cable insulation failure usually started with PD activity, a PD detection system based on pulse current was built to study the PD characteristics of typical defects in XLPE cable. To facilitate the test, the oil cup test terminal was used. Considering the installation procedure, three different kinds of insulation defects in cable accessory samples were made, which were knife incision defect, metal floating potential defect and misplaced stress cone defect. Under long time power frequency voltage of U, 1.7U0, 2.5U0 and 3.5U0 (U0=8.7kV), this paper proposed a variety of methods to characterize partial discharge of these samples by PRPD spectrum, δ t spectrum and PSA spectrum. Results showed the δ t spectrum presented a clear distribution of the peak and the sub-peak. The distribution regularity of partition probability in PSA pattern before the breakdown was found that the probability in the area 1.1 as from 50% to 60%, and the probability in the area 3.1 was from 30% to 40%.
KW - XLPE cable
KW - cable accessory
KW - discharge spectrum
KW - partial discharge
UR - https://www.scopus.com/pages/publications/85027859007
U2 - 10.1109/ICEMPE.2017.7982127
DO - 10.1109/ICEMPE.2017.7982127
M3 - 会议稿件
AN - SCOPUS:85027859007
T3 - ICEMPE 2017 - 1st International Conference on Electrical Materials and Power Equipment
SP - 457
EP - 462
BT - ICEMPE 2017 - 1st International Conference on Electrical Materials and Power Equipment
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1st International Conference on Electrical Materials and Power Equipment, ICEMPE 2017
Y2 - 14 May 2017 through 17 May 2017
ER -