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Streamer Discharge Characteristics of Ball Plate Gap Under Influence of Burr Defects
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Fangcheng LÜ1, Boyu ZHANG1, Jianghai GENG1, Ping WANG1, Yujian DING2, Shuguo GAO3
Insulating Materials | 2022, 55(2) : 67 - 72
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Insulating Materials | 2022, 55(2): 67-72
Insulation Technology
Streamer Discharge Characteristics of Ball Plate Gap Under Influence of Burr Defects
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Fangcheng LÜ1, Boyu ZHANG1, Jianghai GENG1, Ping WANG1, Yujian DING2, Shuguo GAO3
Affiliations
  • 1Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding 071003, China
  • 2China Electric Power Research Institute, Beijing 100192, China
  • 3State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
Published: 2022-02-20 doi: 10.16790/j.cnki.1009-9239.im.2022.02.009
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In this paper, a photoelectric joint detection system composed of a photomultiplier tube and an electric field sensor was used to carry out the discharge tests of ball-plate electrode gap with burr of different gap distances under positive switching impulse voltage. Compared with the discharge tests of the rod-plate and that of ball plate, the 50% discharge voltage(U50%) and the physical characteristic parameters under the initial streamer were obtained and compared. The results show that in the ball-plate electrode gap with burr defects, the initial delay, the field strength jump value, and the light power jump value of the initial streamer are positively correlated; in the initial stage of streamer, the burr can shorten the initial delay of discharge, especially for short gap. After the initial streamer developing, the development law of initial streamer of ball-plate electrode with burr is similar to that of rod-plate electrode gap, and the burr aggravates the development of discharge. For the whole discharge process, the burr defect will greatly reduce the discharge voltage of the ball-plate electrode, so that it is close to the discharge voltage of the rod-plate electrode gap under the same clearance.

surface defects  /  gap distance  /  ball plate gap with burr  /  initial streamer  /  photoelectric joint observation  /  discharge parameters
Fangcheng LÜ, Boyu ZHANG, Jianghai GENG, Ping WANG, Yujian DING, Shuguo GAO. Streamer Discharge Characteristics of Ball Plate Gap Under Influence of Burr Defects[J]. Insulating Materials, 2022 , 55 (2) : 67 -72 . DOI: 10.16790/j.cnki.1009-9239.im.2022.02.009
Year 2022 volume 55 Issue 2
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.02.009
  • Receive Date:2021-04-01
  • Online Date:2025-12-22
  • Published:2022-02-20
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History
  • Received:2021-04-01
  • Revised:2021-05-16
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Affiliations
    1Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding 071003, China
    2China Electric Power Research Institute, Beijing 100192, China
    3State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.02.009
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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