Shaking Table Test on Seismic Performance of Combined High Voltage Circuit Breaker

Abstract

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.