IMB电流互感器 (36 - 800 kV)

In earthquake prone areas, high voltage equipment must withstand the tremendous seismic stresses caused by earthquakes. Normally, calculations are performed to see how well the equipment withstands these stresses. But if the customer requests it, the calculations can be verified with a shaking table test.

This video shows seismic testing performed on current transformers with porcelain, as well as polymeric insulators. During the test the instrument transformers are submitted to forces of from 0,5 - 1g, according to IEEE standard.