Open AccessResearch on P-Δ Effect Increase Coefficient of Independent Steel Tube Lightning Rods in Substation
Author(s) -
Huang Zhen-xing,
Yueshui Shu
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/310/3/032073
Subject(s) - rod , structural engineering , materials science , correlation coefficient , coefficient of variation , mechanics , mathematics , physics , engineering , statistics , medicine , alternative medicine , pathology
To optimize the design method of ISTLR (independent steel tube lightning rod) in substations, ANSYS was used to investigate increase coefficient (called P-Δ Effect increase coefficient) of top HD (horizontal displacement) of ISTLRs under wind load when considering P-Δ Effect compared with that not considering. The results show that the P-Δ Effect increase coefficient is about 1.05. Therefore, the HD of the top can be calculated without considering the P-Δ Effect when designing the structure of the ISTLRs. It can be multiplied by the P-Δ Effect increase coefficient 1.05 and controlled by not exceeding the limit value H/70 of the norm.