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Development of Calculation and Assessment Software for UHVDC Ground Electrode

Author: ZuoYouQun
Tutor: LiuLianGuang
School: North China Electric Power University (Beijing)
Course: Proceedings of the
Keywords: Grounding electrode Grounding resistance Ground potential Step voltage Software Development
CLC: TM862
Type: Master's thesis
Year: 2010
Downloads: 127
Quote: 1
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Abstract


Monopolar ground loops run HVDC a powerful DC current continuously for a long time after grounding injector earth, causing the earth potential rise , step and touch potential effects of electromagnetic metal pipes , armored cable, a negative impact on the power system and the pole nearby site of humans and animals , and therefore requires a very complex design and is embedded on the grounded pole , need to be calculated prior to the ground electrode and the corresponding electrical parameters . Thesis Mirror method and model to establish a ground resistance and ground electrode potential calculation model ; formula derived ground pole ground step voltage and DC current grounding transformer neutral point ; Visual C 6.0 development tools, combined with Matcom graphics technology the design and development of software for the DC the ground electrode operating parameters calculated . To Tian-Guang ± 500 kV and Xiluodu - western Zhejiang ± 800 kV DC transmission project grounded great example to verify , and achieved good results .

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CLC: > Industrial Technology > Electrotechnical > High Voltage Engineering > Overvoltage and Its Protection > Over-voltage protection devices
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