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http://dx.doi.org/10.5000/EESK.2008.12.2.001

Experimental Study of Friction Pendulum System to Improve the Seismic Capacity of Transformer  

Jang, Jung-Bum (한국전력공사 전력연구원)
Kim, Jeong-Ki (한국전력공사 전력연구원)
Hwang, Kyeong-Min (한국전력공사 전력연구원)
Ham, Kyung-Won (한국전력공사 전력연구원)
Park, Jin-Wan ((주)브이테크)
Lee, Chan-Wook ((주)비엔티엔지니어링)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.12, no.2, 2008 , pp. 1-8 More about this Journal
Abstract
Friction pendulum system is developed to prevent the damage of transformer, which is the most important among the electric power facilities, due to the earthquake and its seismic capacity is verified through the shaking table test. The applicability of friction pendulum system is confirmed as test results of compressive capacity test and friction test. Especially, as a result of shaking table test with a large scale transformer model, friction pendulum system gives to the reduction of maximum response acceleration by 30% at anchorage of transformer and 59% at the top of porcelain bushing comparing with the existing anchorage type. In addition to the reduction of maximum response acceleration, natural frequency of transformer is shifted to long period due to the friction pendulum system. In case that friction pendulum system is applied to the transformer, the damage of transformer can be prevented effectively under the earthquake.
Keywords
Transformer; Seismic Capacity; Friction Pendulum System; Shaking Table Test;
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