Open AccessShaking Table Test on Seismic Performance of Combined High Voltage Circuit Breaker
Author(s) -
Hongbo Li
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/446/4/042027
Subject(s) - earthquake shaking table , circuit breaker , voltage , structural engineering , acceleration , engineering , seismic wave , acoustics , geology , electrical engineering , seismology , physics , classical mechanics
This paper focused on the experimental characteristics of seismic performance on a typical combined high voltage (HV) circuit breaker. Through the shaking table test of the scale model of a “T”-type circuit breaker, the results indicated that the test model could better reflect the main force characteristics of the prototype structures. Meanwhile, the dynamic characteristics of the model structure were reflected by white noise sweep frequency, and the seismic response of the model structure under the excitation of different seismic waves with different intensities were studied. It is concluded that the vulnerable parts of the model structure appeared at the root of the structural insulation porcelain column, the top and the bottom of the structure. Generally, the magnification coefficient of acceleration is about 1.1-2.7.