Abstract:

This paper studied the application of artificial standard time history wave on the seismic performance evaluation of 500 kV arrester in shaking table test, in which artificial standard time history wave, EL Centro seismic wave, Taft seismic wave, Beat－Wave were inputted unidirectional or bidirectional. The test results show that, under above 4 kinds of seismic waves with the same seismic grade, the stress of the equipment root under the action of artificial standard time history wave is the largest. The difference of test results for the different equipment under the action of artificial standard time history wave should be relatively small because the dominant frequency segment of the response spectrum of time history waves is gentle, so artificial standard time history wave is applied to the seismic performance evaluation of 500 kV arrester. Comparison results under the action of unidirectional or bidirectional waves demonstrate that it can only carry out unidirectional excitation shaking table test for the seismic performance evaluation of two-dimensional axisymmetric structure.

Key words: 500 kV arrester, shaking table test, seismic performance, dominant frequency