Influence of Uhv Hybrid Reactive Power Compensation on Interruption Performance of Circuit Breakers Under Different Faults

• DOI: 10.2139/ssrn.4089421
• Publication Date: 2022-04-22T03:33:53Z
• Authors: Jingjing Yang; Kaining Hou; Zhaoyang Kang; Hongshun Liu; Qingquan Li
• Keywords: Transient recovery voltage; Disconnector; Distribution board

For extremely large ultra-high-voltage (UHV) power transmission and distribution lines using hybrid reactive compensation (HRPC), single-phase earth fault (1LG), three-phase ground (3LG), phase-to-phase (2LS), two-phase grounding (2LG) often occurs. This study uses numerical emulations to examine the indicators of interruption performance for circuit breaker in case different faults. Based on equivalent-valued parameter structure a UHV demonstration project, formal expressions are deduced, influence such factors as location degree HRPC 1LG, 2LG, 3LG, 2LS is analyzed. Finally, breakers under faults compared. A quantitative evaluation changes relevant can provide technical basis choosing appropriate design light application well equipment development assessment.