Seismic Resilience of Large Power Transformers: Shake Table Test

oviders to provide information regarding solutions aimed at increasing the seismic resilience of large power transformers. BACKGROUND The flexibility and density of massive power transformer tanks can cause them to act as a vibration amplifier for equipment mounted on them. During an earthquake, the

transformer tank and mounted bushings can be in resonance, increasing the shaking in the bushing beyond its design levels and resulting in bushing failure. As seen in past earthquakes around the world, this seismic vulnerability can concur